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Scaling Reddit Community Points with Arbitrum Rollup: a piece of cake

Scaling Reddit Community Points with Arbitrum Rollup: a piece of cake
https://preview.redd.it/b80c05tnb9e51.jpg?width=2550&format=pjpg&auto=webp&s=850282c1a3962466ed44f73886dae1c8872d0f31
Submitted for consideration to The Great Reddit Scaling Bake-Off
Baked by the pastry chefs at Offchain Labs
Please send questions or comments to [[email protected] ](mailto:[email protected])
1. Overview
We're excited to submit Arbitrum Rollup for consideration to The Great Reddit Scaling Bake-Off. Arbitrum Rollup is the only Ethereum scaling solution that supports arbitrary smart contracts without compromising on Ethereum's security or adding points of centralization. For Reddit, this means that Arbitrum can not only scale the minting and transfer of Community Points, but it can foster a creative ecosystem built around Reddit Community Points enabling points to be used in a wide variety of third party applications. That's right -- you can have your cake and eat it too!
Arbitrum Rollup isn't just Ethereum-style. Its Layer 2 transactions are byte-for-byte identical to Ethereum, which means Ethereum users can continue to use their existing addresses and wallets, and Ethereum developers can continue to use their favorite toolchains and development environments out-of-the-box with Arbitrum. Coupling Arbitrum’s tooling-compatibility with its trustless asset interoperability, Reddit not only can scale but can onboard the entire Ethereum community at no cost by giving them the same experience they already know and love (well, certainly know).
To benchmark how Arbitrum can scale Reddit Community Points, we launched the Reddit contracts on an Arbitrum Rollup chain. Since Arbitrum provides full Solidity support, we didn't have to rewrite the Reddit contracts or try to mimic their functionality using an unfamiliar paradigm. Nope, none of that. We launched the Reddit contracts unmodified on Arbitrum Rollup complete with support for minting and distributing points. Like every Arbitrum Rollup chain, the chain included a bridge interface in which users can transfer Community Points or any other asset between the L1 and L2 chains. Arbitrum Rollup chains also support dynamic contract loading, which would allow third-party developers to launch custom ecosystem apps that integrate with Community Points on the very same chain that runs the Reddit contracts.
1.1 Why Ethereum
Perhaps the most exciting benefit of distributing Community Points using a blockchain is the ability to seamlessly port points to other applications and use them in a wide variety of contexts. Applications may include simple transfers such as a restaurant that allows Redditors to spend points on drinks. Or it may include complex smart contracts -- such as placing Community Points as a wager for a multiparty game or as collateral in a financial contract.
The common denominator between all of the fun uses of Reddit points is that it needs a thriving ecosystem of both users and developers, and the Ethereum blockchain is perhaps the only smart contract platform with significant adoption today. While many Layer 1 blockchains boast lower cost or higher throughput than the Ethereum blockchain, more often than not, these attributes mask the reality of little usage, weaker security, or both.
Perhaps another platform with significant usage will rise in the future. But today, Ethereum captures the mindshare of the blockchain community, and for Community Points to provide the most utility, the Ethereum blockchain is the natural choice.
1.2 Why Arbitrum
While Ethereum's ecosystem is unmatched, the reality is that fees are high and capacity is too low to support the scale of Reddit Community Points. Enter Arbitrum. Arbitrum Rollup provides all of the ecosystem benefits of Ethereum, but with orders of magnitude more capacity and at a fraction of the cost of native Ethereum smart contracts. And most of all, we don't change the experience from users. They continue to use the same wallets, addresses, languages, and tools.
Arbitrum Rollup is not the only solution that can scale payments, but it is the only developed solution that can scale both payments and arbitrary smart contracts trustlessly, which means that third party users can build highly scalable add-on apps that can be used without withdrawing money from the Rollup chain. If you believe that Reddit users will want to use their Community Points in smart contracts--and we believe they will--then it makes the most sense to choose a single scaling solution that can support the entire ecosystem, eliminating friction for users.
We view being able to run smart contracts in the same scaling solution as fundamentally critical since if there's significant demand in running smart contracts from Reddit's ecosystem, this would be a load on Ethereum and would itself require a scaling solution. Moreover, having different scaling solutions for the minting/distribution/spending of points and for third party apps would be burdensome for users as they'd have to constantly shuffle their Points back and forth.
2. Arbitrum at a glance
Arbitrum Rollup has a unique value proposition as it offers a combination of features that no other scaling solution achieves. Here we highlight its core attributes.
Decentralized. Arbitrum Rollup is as decentralized as Ethereum. Unlike some other Layer 2 scaling projects, Arbitrum Rollup doesn't have any centralized components or centralized operators who can censor users or delay transactions. Even in non-custodial systems, centralized components provide a risk as the operators are generally incentivized to increase their profit by extracting rent from users often in ways that severely degrade user experience. Even if centralized operators are altruistic, centralized components are subject to hacking, coercion, and potential liability.
Massive Scaling. Arbitrum achieves order of magnitude scaling over Ethereum's L1 smart contracts. Our software currently supports 453 transactions-per-second for basic transactions (at 1616 Ethereum gas per tx). We have a lot of room left to optimize (e.g. aggregating signatures), and over the next several months capacity will increase significantly. As described in detail below, Arbitrum can easily support and surpass Reddit's anticipated initial load, and its capacity will continue to improve as Reddit's capacity needs grow.
Low cost. The cost of running Arbitrum Rollup is quite low compared to L1 Ethereum and other scaling solutions such as those based on zero-knowledge proofs. Layer 2 fees are low, fixed, and predictable and should not be overly burdensome for Reddit to cover. Nobody needs to use special equipment or high-end machines. Arbitrum requires validators, which is a permissionless role that can be run on any reasonable on-line machine. Although anybody can act as a validator, in order to protect against a “tragedy of the commons” and make sure reputable validators are participating, we support a notion of “invited validators” that are compensated for their costs. In general, users pay (low) fees to cover the invited validators’ costs, but we imagine that Reddit may cover this cost for its users. See more on the costs and validator options below.
Ethereum Developer Experience. Not only does Arbitrum support EVM smart contracts, but the developer experience is identical to that of L1 Ethereum contracts and fully compatible with Ethereum tooling. Developers can port existing Solidity apps or write new ones using their favorite and familiar toolchains (e.g. Truffle, Buidler). There are no new languages or coding paradigms to learn.
Ethereum wallet compatibility. Just as in Ethereum, Arbitrum users need only hold keys, but do not have to store any coin history or additional data to protect or access their funds. Since Arbitrum transactions are semantically identical to Ethereum L1 transactions, existing Ethereum users can use their existing Ethereum keys with their existing wallet software such as Metamask.
Token interoperability. Users can easily transfer their ETH, ERC-20 and ERC-721 tokens between Ethereum and the Arbitrum Rollup chain. As we explain in detail below, it is possible to mint tokens in L2 that can subsequently be withdrawn and recognized by the L1 token contract.
Fast finality. Transactions complete with the same finality time as Ethereum L1 (and it's possible to get faster finality guarantees by trading away trust assumptions; see the Arbitrum Rollup whitepaper for details).
Non-custodial. Arbitrum Rollup is a non-custodial scaling solution, so users control their funds/points and neither Reddit nor anyone else can ever access or revoke points held by users.
Censorship Resistant. Since it's completely decentralized, and the Arbitrum protocol guarantees progress trustlessly, Arbitrum Rollup is just as censorship-proof as Ethereum.
Block explorer. The Arbitrum Rollup block explorer allows users to view and analyze transactions on the Rollup chain.
Limitations
Although this is a bake-off, we're not going to sugar coat anything. Arbitrum Rollup, like any Optimistic Rollup protocol, does have one limitation, and that's the delay on withdrawals.
As for the concrete length of the delay, we've done a good deal of internal modeling and have blogged about this as well. Our current modeling suggests a 3-hour delay is sufficient (but as discussed in the linked post there is a tradeoff space between the length of the challenge period and the size of the validators’ deposit).
Note that this doesn't mean that the chain is delayed for three hours. Arbitrum Rollup supports pipelining of execution, which means that validators can keep building new states even while previous ones are “in the pipeline” for confirmation. As the challenge delays expire for each update, a new state will be confirmed (read more about this here).
So activity and progress on the chain are not delayed by the challenge period. The only thing that's delayed is the consummation of withdrawals. Recall though that any single honest validator knows immediately (at the speed of L1 finality) which state updates are correct and can guarantee that they will eventually be confirmed, so once a valid withdrawal has been requested on-chain, every honest party knows that the withdrawal will definitely happen. There's a natural place here for a liquidity market in which a validator (or someone who trusts a validator) can provide withdrawal loans for a small interest fee. This is a no-risk business for them as they know which withdrawals will be confirmed (and can force their confirmation trustlessly no matter what anyone else does) but are just waiting for on-chain finality.
3. The recipe: How Arbitrum Rollup works
For a description of the technical components of Arbitrum Rollup and how they interact to create a highly scalable protocol with a developer experience that is identical to Ethereum, please refer to the following documents:
Arbitrum Rollup Whitepaper
Arbitrum academic paper (describes a previous version of Arbitrum)
4. Developer docs and APIs
For full details about how to set up and interact with an Arbitrum Rollup chain or validator, please refer to our developer docs, which can be found at https://developer.offchainlabs.com/.
Note that the Arbitrum version described on that site is older and will soon be replaced by the version we are entering in Reddit Bake-Off, which is still undergoing internal testing before public release.
5. Who are the validators?
As with any Layer 2 protocol, advancing the protocol correctly requires at least one validator (sometimes called block producers) that is honest and available. A natural question is: who are the validators?
Recall that the validator set for an Arbitrum chain is open and permissionless; anyone can start or stop validating at will. (A useful analogy is to full nodes on an L1 chain.) But we understand that even though anyone can participate, Reddit may want to guarantee that highly reputable nodes are validating their chain. Reddit may choose to validate the chain themselves and/or hire third-party validators.To this end, we have begun building a marketplace for validator-for-hire services so that dapp developers can outsource validation services to reputable nodes with high up-time. We've announced a partnership in which Chainlink nodes will provide Arbitrum validation services, and we expect to announce more partnerships shortly with other blockchain infrastructure providers.
Although there is no requirement that validators are paid, Arbitrum’s economic model tracks validators’ costs (e.g. amount of computation and storage) and can charge small fees on user transactions, using a gas-type system, to cover those costs. Alternatively, a single party such as Reddit can agree to cover the costs of invited validators.
6. Reddit Contract Support
Since Arbitrum contracts and transactions are byte-for-byte compatible with Ethereum, supporting the Reddit contracts is as simple as launching them on an Arbitrum chain.
Minting. Arbitrum Rollup supports hybrid L1/L2 tokens which can be minted in L2 and then withdrawn onto the L1. An L1 contract at address A can make a special call to the EthBridge which deploys a "buddy contract" to the same address A on an Arbitrum chain. Since it's deployed at the same address, users can know that the L2 contract is the authorized "buddy" of the L1 contract on the Arbitrum chain.
For minting, the L1 contract is a standard ERC-20 contract which mints and burns tokens when requested by the L2 contract. It is paired with an ERC-20 contract in L2 which mints tokens based on whatever programmer provided minting facility is desired and burns tokens when they are withdrawn from the rollup chain. Given this base infrastructure, Arbitrum can support any smart contract based method for minting tokens in L2, and indeed we directly support Reddit's signature/claim based minting in L2.
Batch minting. What's better than a mint cookie? A whole batch! In addition to supporting Reddit’s current minting/claiming scheme, we built a second minting design, which we believe outperforms the signature/claim system in many scenarios.
In the current system, Reddit periodically issues signed statements to users, who then take those statements to the blockchain to claim their tokens. An alternative approach would have Reddit directly submit the list of users/amounts to the blockchain and distribute the tokens to the users without the signature/claim process.
To optimize the cost efficiency of this approach, we designed an application-specific compression scheme to minimize the size of the batch distribution list. We analyzed the data from Reddit's previous distributions and found that the data is highly compressible since token amounts are small and repeated, and addresses appear multiple times. Our function groups transactions by size, and replaces previously-seen addresses with a shorter index value. We wrote client code to compress the data, wrote a Solidity decompressing function, and integrated that function into Reddit’s contract running on Arbitrum.
When we ran the compression function on the previous Reddit distribution data, we found that we could compress batched minting data down to to 11.8 bytes per minting event (averaged over a 6-month trace of Reddit’s historical token grants)compared with roughly 174 bytes of on-chain data needed for the signature claim approach to minting (roughly 43 for an RLP-encoded null transaction + 65 for Reddit's signature + 65 for the user's signature + roughly 8 for the number of Points) .
The relative benefit of the two approaches with respect to on-chain call data cost depends on the percentage of users that will actually claim their tokens on chain. With the above figures, batch minting will be cheaper if roughly 5% of users redeem their claims. We stress that our compression scheme is not Arbitrum-specific and would be beneficial in any general-purpose smart contract platform.
8. Benchmarks and costs
In this section, we give the full costs of operating the Reddit contracts on an Arbitrum Rollup chain including the L1 gas costs for the Rollup chain, the costs of computation and storage for the L2 validators as well as the capital lockup requirements for staking.
Arbitrum Rollup is still on testnet, so we did not run mainnet benchmarks. Instead, we measured the L1 gas cost and L2 workload for Reddit operations on Arbitrum and calculated the total cost assuming current Ethereum gas prices. As noted below in detail, our measurements do not assume that Arbitrum is consuming the entire capacity of Ethereum. We will present the details of our model now, but for full transparency you can also play around with it yourself and adjust the parameters, by copying the spreadsheet found here.
Our cost model is based on measurements of Reddit’s contracts, running unmodified (except for the addition of a batch minting function) on Arbitrum Rollup on top of Ethereum.
On the distribution of transactions and frequency of assertions. Reddit's instructions specify the following minimum parameters that submissions should support:
Over a 5 day period, your scaling PoC should be able to handle:
  • 100,000 point claims (minting & distributing points)
  • 25,000 subscriptions
  • 75,000 one-off points burning
  • 100,000 transfers
We provide the full costs of operating an Arbitrum Rollup chain with this usage under the assumption that tokens are minted or granted to users in batches, but other transactions are uniformly distributed over the 5 day period. Unlike some other submissions, we do not make unrealistic assumptions that all operations can be submitted in enormous batches. We assume that batch minting is done in batches that use only a few percent on an L1 block’s gas, and that other operations come in evenly over time and are submitted in batches, with one batch every five minutes to keep latency reasonable. (Users are probably already waiting for L1 finality, which takes at least that long to achieve.)
We note that assuming that there are only 300,000 transactions that arrive uniformly over the 5 day period will make our benchmark numbers lower, but we believe that this will reflect the true cost of running the system. To see why, say that batches are submitted every five minutes (20 L1 blocks) and there's a fixed overhead of c bytes of calldata per batch, the cost of which will get amortized over all transactions executed in that batch. Assume that each individual transaction adds a marginal cost of t. Lastly assume the capacity of the scaling system is high enough that it can support all of Reddit's 300,000 transactions within a single 20-block batch (i.e. that there is more than c + 300,000*t byes of calldata available in 20 blocks).
Consider what happens if c, the per-batch overhead, is large (which it is in some systems, but not in Arbitrum). In the scenario that transactions actually arrive at the system's capacity and each batch is full, then c gets amortized over 300,000 transactions. But if we assume that the system is not running at capacity--and only receives 300,000 transactions arriving uniformly over 5 days-- then each 20-block assertion will contain about 200 transactions, and thus each transaction will pay a nontrivial cost due to c.
We are aware that other proposals presented scaling numbers assuming that 300,000 transactions arrived at maximum capacity and was executed in a single mega-transaction, but according to our estimates, for at least one such report, this led to a reported gas price that was 2-3 orders of magnitude lower than it would have been assuming uniform arrival. We make more realistic batching assumptions, and we believe Arbitrum compares well when batch sizes are realistic.
Our model. Our cost model includes several sources of cost:
  • L1 gas costs: This is the cost of posting transactions as calldata on the L1 chain, as well as the overhead associated with each batch of transactions, and the L1 cost of settling transactions in the Arbitrum protocol.
  • Validator’s staking costs: In normal operation, one validator will need to be staked. The stake is assumed to be 0.2% of the total value of the chain (which is assumed to be $1 per user who is eligible to claim points). The cost of staking is the interest that could be earned on the money if it were not staked.
  • Validator computation and storage: Every validator must do computation to track the chain’s processing of transactions, and must maintain storage to keep track of the contracts’ EVM storage. The cost of computation and storage are estimated based on measurements, with the dollar cost of resources based on Amazon Web Services pricing.
It’s clear from our modeling that the predominant cost is for L1 calldata. This will probably be true for any plausible rollup-based system.
Our model also shows that Arbitrum can scale to workloads much larger than Reddit’s nominal workload, without exhausting L1 or L2 resources. The scaling bottleneck will ultimately be calldata on the L1 chain. We believe that cost could be reduced substantially if necessary by clever encoding of data. (In our design any compression / decompression of L2 transaction calldata would be done by client software and L2 programs, never by an L1 contract.)
9. Status of Arbitrum Rollup
Arbitrum Rollup is live on Ethereum testnet. All of the code written to date including everything included in the Reddit demo is open source and permissively licensed under the Apache V2 license. The first testnet version of Arbitrum Rollup was released on testnet in February. Our current internal version, which we used to benchmark the Reddit contracts, will be released soon and will be a major upgrade.
Both the Arbitrum design as well as the implementation are heavily audited by independent third parties. The Arbitrum academic paper was published at USENIX Security, a top-tier peer-reviewed academic venue. For the Arbitrum software, we have engaged Trail of Bits for a security audit, which is currently ongoing, and we are committed to have a clean report before launching on Ethereum mainnet.
10. Reddit Universe Arbitrum Rollup Chain
The benchmarks described in this document were all measured using the latest internal build of our software. When we release the new software upgrade publicly we will launch a Reddit Universe Arbitrum Rollup chain as a public demo, which will contain the Reddit contracts as well as a Uniswap instance and a Connext Hub, demonstrating how Community Points can be integrated into third party apps. We will also allow members of the public to dynamically launch ecosystem contracts. We at Offchain Labs will cover the validating costs for the Reddit Universe public demo.
If the folks at Reddit would like to evaluate our software prior to our public demo, please email us at [email protected] and we'd be more than happy to provide early access.
11. Even more scaling: Arbitrum Sidechains
Rollups are an excellent approach to scaling, and we are excited about Arbitrum Rollup which far surpasses Reddit's scaling needs. But looking forward to Reddit's eventual goal of supporting hundreds of millions of users, there will likely come a time when Reddit needs more scaling than any Rollup protocol can provide.
While Rollups greatly reduce costs, they don't break the linear barrier. That is, all transactions have an on-chain footprint (because all calldata must be posted on-chain), albeit a far smaller one than on native Ethereum, and the L1 limitations end up being the bottleneck for capacity and cost. Since Ethereum has limited capacity, this linear use of on-chain resources means that costs will eventually increase superlinearly with traffic.
The good news is that we at Offchain Labs have a solution in our roadmap that can satisfy this extreme-scaling setting as well: Arbitrum AnyTrust Sidechains. Arbitrum Sidechains are similar to Arbitrum Rollup, but deviate in that they name a permissioned set of validators. When a chain’s validators agree off-chain, they can greatly reduce the on-chain footprint of the protocol and require almost no data to be put on-chain. When validators can't reach unanimous agreement off-chain, the protocol reverts to Arbitrum Rollup. Technically, Arbitrum Sidechains can be viewed as a hybrid between state channels and Rollup, switching back and forth as necessary, and combining the performance and cost that state channels can achieve in the optimistic case, with the robustness of Rollup in other cases. The core technical challenge is how to switch seamlessly between modes and how to guarantee that security is maintained throughout.
Arbitrum Sidechains break through this linear barrier, while still maintaining a high level of security and decentralization. Arbitrum Sidechains provide the AnyTrust guarantee, which says that as long as any one validator is honest and available (even if you don't know which one will be), the L2 chain is guaranteed to execute correctly according to its code and guaranteed to make progress. Unlike in a state channel, offchain progress does not require unanimous consent, and liveness is preserved as long as there is a single honest validator.
Note that the trust model for Arbitrum Sidechains is much stronger than for typical BFT-style chains which introduce a consensus "voting" protocols among a small permissioned group of validators. BFT-based protocols require a supermajority (more than 2/3) of validators to agree. In Arbitrum Sidechains, by contrast, all you need is a single honest validator to achieve guaranteed correctness and progress. Notice that in Arbitrum adding validators strictly increases security since the AnyTrust guarantee provides correctness as long as any one validator is honest and available. By contrast, in BFT-style protocols, adding nodes can be dangerous as a coalition of dishonest nodes can break the protocol.
Like Arbitrum Rollup, the developer and user experiences for Arbitrum Sidechains will be identical to that of Ethereum. Reddit would be able to choose a large and diverse set of validators, and all that they would need to guarantee to break through the scaling barrier is that a single one of them will remain honest.
We hope to have Arbitrum Sidechains in production in early 2021, and thus when Reddit reaches the scale that surpasses the capacity of Rollups, Arbitrum Sidechains will be waiting and ready to help.
While the idea to switch between channels and Rollup to get the best of both worlds is conceptually simple, getting the details right and making sure that the switch does not introduce any attack vectors is highly non-trivial and has been the subject of years of our research (indeed, we were working on this design for years before the term Rollup was even coined).
12. How Arbitrum compares
We include a comparison to several other categories as well as specific projects when appropriate. and explain why we believe that Arbitrum is best suited for Reddit's purposes. We focus our attention on other Ethereum projects.
Payment only Rollups. Compared to Arbitrum Rollup, ZK-Rollups and other Rollups that only support token transfers have several disadvantages:
  • As outlined throughout the proposal, we believe that the entire draw of Ethereum is in its rich smart contracts support which is simply not achievable with today's zero-knowledge proof technology. Indeed, scaling with a ZK-Rollup will add friction to the deployment of smart contracts that interact with Community Points as users will have to withdraw their coins from the ZK-Rollup and transfer them to a smart contract system (like Arbitrum). The community will be best served if Reddit builds on a platform that has built-in, frictionless smart-contract support.
  • All other Rollup protocols of which we are aware employ a centralized operator. While it's true that users retain custody of their coins, the centralized operator can often profit from censoring, reordering, or delaying transactions. A common misconception is that since they're non-custodial protocols, a centralized sequencer does not pose a risk but this is incorrect as the sequencer can wreak havoc or shake down users for side payments without directly stealing funds.
  • Sidechain type protocols can eliminate some of these issues, but they are not trustless. Instead, they require trust in some quorum of a committee, often requiring two-third of the committee to be honest, compared to rollup protocols like Arbitrum that require only a single honest party. In addition, not all sidechain type protocols have committees that are diverse, or even non-centralized, in practice.
  • Plasma-style protocols have a centralized operator and do not support general smart contracts.
13. Concluding Remarks
While it's ultimately up to the judges’ palate, we believe that Arbitrum Rollup is the bakeoff choice that Reddit kneads. We far surpass Reddit's specified workload requirement at present, have much room to optimize Arbitrum Rollup in the near term, and have a clear path to get Reddit to hundreds of millions of users. Furthermore, we are the only project that gives developers and users the identical interface as the Ethereum blockchain and is fully interoperable and tooling-compatible, and we do this all without any new trust assumptions or centralized components.
But no matter how the cookie crumbles, we're glad to have participated in this bake-off and we thank you for your consideration.
About Offchain Labs
Offchain Labs, Inc. is a venture-funded New York company that spun out of Princeton University research, and is building the Arbitrum platform to usher in the next generation of scalable, interoperable, and compatible smart contracts. Offchain Labs is backed by Pantera Capital, Compound VC, Coinbase Ventures, and others.
Leadership Team
Ed Felten
Ed Felten is Co-founder and Chief Scientist at Offchain Labs. He is on leave from Princeton University, where he is the Robert E. Kahn Professor of Computer Science and Public Affairs. From 2015 to 2017 he served at the White House as Deputy United States Chief Technology Officer and senior advisor to the President. He is an ACM Fellow and member of the National Academy of Engineering. Outside of work, he is an avid runner, cook, and L.A. Dodgers fan.
Steven Goldfeder
Steven Goldfeder is Co-founder and Chief Executive Officer at Offchain Labs. He holds a PhD from Princeton University, where he worked at the intersection of cryptography and cryptocurrencies including threshold cryptography, zero-knowledge proof systems, and post-quantum signatures. He is a co-author of Bitcoin and Cryptocurrency Technologies, the leading textbook on cryptocurrencies, and he has previously worked at Google and Microsoft Research, where he co-invented the Picnic signature algorithm. When not working, you can find Steven spending time with his family, taking a nature walk, or twisting balloons.
Harry Kalodner
Harry Kalodner is Co-founder and Chief Technology Officer at Offchain Labs where he leads the engineering team. Before the company he attended Princeton as a Ph.D candidate where his research explored economics, anonymity, and incentive compatibility of cryptocurrencies, and he also has worked at Apple. When not up at 3:00am writing code, Harry occasionally sleeps.
submitted by hkalodner to ethereum [link] [comments]

Weekly Update: 21st June, 2019

Hi everyone 👋 The sun is shining here and Bitcoin is up, so all is good with the world ☀️
I have quite a bit to update you on today... here we go!
Moses Skoda joined the team this week. He's working on our services layer.
We've made strong headway with the build of our updated site, focused on core network services. We've also closed out the final colour ways and font choices or the brand update. I'll be sharing some detail on this front with you next week.
And I expect us to be rolling out the changes in the first half of July.
Suffice to say, Ravi's done an awesome job.
We had the PPA awards this week, where Paul presented one of the gongs.
It was a really positive evening for us – we have 20+ new conversations opened up on the back of the event.
I met with David Wilde to plan introductions to local government, and to explore methods for supporting delivery, for example by embedding our networking software within local data centres.
We also discussed the detail of his ongoing engagement with the project, covering speaking arrangements, articles and an approach for central government.
I wrote an article for Fintech magazine which should be published next week. I'll share the link when it's published.
We kicked off with our new PR. Wind up time can take a while, but it's underway.
We've increased our engagement with one of our existing customers, who are now working with us on a deeper level to integrate core services.
One of our advisors Sean King is representing us in Cannes for the Cannes Lions this week, and has a few promising leads which we will be follow up on next week.
We have another promising engagement in the construction industry, which is the final throws of being defined before kicking off. As soon as we have more to share, we will.
The networking team have been continuing to put the finishing touches to the ACL migration piece required ahead of next months Mainnet release. This will make the transition from a single global ACL token to a per-user token seamless.
They also closed out enhancement work to the DNS service within the Edge network. it now supports all major record types in full, including MX, CNAME, NS and SOA record types.
It has also been refactoring in to an interface which makes extending record type coverage simple and lightweight. A version of this will be used for consumer level interfaces. More detail on this service will be released in the coming weeks.
Roadmap updates and timings were also completed this week. Items in the roadmap include:
...And a bunch more besides
!
We will be releasing a version of this to the community next week, and a full version with the release of the updated site in July.
Ecohustler went viral.
One of their articles (https://ecohustler.com/article/one-corporation-to-pollute-them-all/) was picked up by just about every social platform you can imagine. At peak the site was receiving 1k+ concurrent connections.
That's an increase in traffic of 16,566%. Pretty significant! Uptime during the stampede? 100%
API version 5 was released!
Release notes as follows:
https://github.com/dadi/api/releases/tag/v5.0.0
And documentation can be found here:
https://github.com/dadi/api/releases/tag/v5.0.0
We've also made huge strides in the definition of what will become a stand alone SaaS proposition for our web services. Some of you are already aware of the work being done on this front, but in summary: we are breaking out the web services in the network and will be offering them under a new brand and on a new - and very powerful - domain.
The reason for this is to allow us to focus the network on network-level services, better supporting its go to market.
This approach also means that we don't loose the momentum and investment made in the web services to date, and will present a stand alone entry point to use of the network (use of the web services under their new brand will deliver revenue directly back to the network).
We'll be announcing this formally when the full branding work for the proposition has been completed. We expect this to be in July.
The focus for the technology has been on maintaining an open source platform and enabling local development workflows as a key point of difference and supporting mechanic for the SaaS solution.
With regard to token price, I'm happy to see a continued upward trend since early May (+32%).
The token remains central to the network as the only method of realising an internal marketplace that pays for services within an edge proposition at scale. This utility will be further cemented as we move closer to stand alone contracts, and as we work to find new methods for storing the data of the network in the blockchain.
And that's it this week. Enjoy your weekends ✌️
submitted by josephdenne to edgenetwork [link] [comments]

Sharering (SHR) I believe this one is going to surprise so many. Already generating revenue and doing buybacks every week. Already over 10 000 registered users. Mainnet + app + masternodes and staking before EOY.

I got this stuff from Steve Aitchison, he wrote this review and posted it on Uptrennd. Figured I should put it on here as well since I truly believe this is an incredible moonshot. I'm personally holding SHR myself and am very convinced it will do extremely well.
Give a read through it and you will immediatly see why. Enjoy guys.
Introduction
Imagine for a second the following scenario. You are a 2 car family. One car is used every day going back and forth to work, for shopping, all the little jaunts you and your husband like to go on. Your grown children are at university and come home for the weekends so the other car sits in the driveway all week and doesn’t get used during the week. What a waste of a perfectly good car. You think to yourself we could put that car to good use and actually help to pay for university fees, by renting it out during the week. However, then you think “well it’s only a little Ford Fiesta who’s going to want to rent that.” Well, it turns out a lot of people want to rent it and for a good price: £34 ($40) per day, a possible $800 per month.
Peer to peer car sharing has grown massively over the last few years and people are making serious money by letting our vehicles on a daily basis, emulating the Airbnb model. In fact companies like Turo, Getaround and Drivy, which has just been acquired by Getaround for $300 Million, are bringing in serious investors like Toyota, Softbank Vision Fund, Menlo Ventures, and IAC to the tune of over $800 Million.
A key difference between rental companies and peer to peer is that they have vastly improved technology with app interfaces that make locating assets and resources, reserving and using them, and making payment convenient and seamless. This, combined with location-specific analytics, allows by-the-minute access to assets and resources (e.g. cars or bicycles) and enables customers to pick up and drop these assets where and when convenient.
Car sharing is just one example of an industry that is being disrupted. We have seen, experienced and read about the amazing growth of Airbnb which is now estimated to be valued at $38 Billion. Airbnb has been so successful that companies like booking.com are trying to get in on the act by adopting a similar model when it comes to booking accommodation.
There is also the phenomenal rise of bicycle rentals which we see in cities all over the world, not quite the same as peer to peer sharing, but it’s another rental model that is ripe for being disrupted by the new sharing model.
With this business model in mind what other areas could it be used in:
Transport: Used for the rental of cars, trucks, scooters, trailers, and even heavy vehicles. Delivery Drivers: Facilitate booking and payment for delivery drivers. Agriculture: Garden sharing, seed swap, bee-hive relocation, etc. Finance: Peer to peer lending Food bank, social dining Travel Tours, shared tour groups Real Estate Airbnb, co-housing, co-living, Couchsurfing, shared office space, house swapping. Time: Labour, co-working, freelancing Assets Book swapping, clothes swapping, fractional ownership, freecycling, toy libraries. Transportation Car sharing, ride-sharing, car-pooling, bicycle sharing, delivery company, couriers And so much more!
This newly emerging, but highly fragmented sharing industry, is currently worth over $100 billion. It is predicted to grow to at least $335 billion by 2025.
As you can see from a few examples above the sharing economy has a lot of room to grow but what it doesn’t have, yet, is a company who can facilitate ALL of the above use cases in one place.
That is until now!
ShareRing is disrupting the disruptors by bringing everything together in one place and making it easy for you and me to share anything and everything and making it as easy as opening an app on your phone.
Business Case
The sharing market has exploded over the last several years. This is due, in part, to the digital age we live in, as we now have over 2.82 Billion people with smart phones around the world. It also due to how easy the business model of sharing lends itself to the digital world, and how with the simple installation of an app we can access a plethora of markets to rent almost anything from.
Due to this rise of digital platforms and the proliferation of smartphones, revenues coming from sharing economy platforms are only expected to increase. It is estimated to grow to a $335 billion industry in 2025, compared to its $14 billion value in 2014. (PwC UK).
The beauty of the sharing economy is that it is a win/win/win situation for the person who wants to rent something for a few days or weeks, the person who is renting out, and the company who facilitates the ease of the transactions between the renter and the person renting out. Typically the renter will save a lot of money whilst renting out someone else’s apartment, car, bicycle, clothes, dog sitting services etc and they can almost be assured of quality due to the social side of the business model with reviews from real people. The person who is renting out can make additional income and will want good reviews and therefore keep the standard of service higher. The company that is facilitating all of this can make a lot of money on transaction fees, as well as from advertising, and partnership deals, and obviously have an exit strategy for possible buyouts.
When it comes to looking at the business model, ShareRing fits in to the Commission Based Platform as described in Ritter and Schanz study where they looked at the core difference in difference business models of the sharing economy: Singular Transaction Models, Subscription-Based Models, Commission-Based Platforms and Unlimited Platforms.)
Commission Based Platforms are dominated by (at least) triadic relationships amongst providers, intermediaries and consumers with a utility-bound revenue stream. These business models enable their customers to switch between provider and consumer roles by creating and delivering the value proposition. Only a few employees work for the intermediary and the value creation and delivery is externalized. From a consumer perspective, consumers are empowered to collaborate with each other and to design the collaboration terms by negotiating the terms and conditions of the content, creation, distribution and consumption of the value proposition. Depending on the orientation of the value proposition, consumers purchase commodities (Tauschticket, ebay), access commodities in a defined timespan (booking.com, Airbnb) or buy services (uber, turo) from occasional and professional providers found via an intermediary. The intermediary mainly focuses on nurturing a community feeling and reducing exchange insecurity by incorporating rating systems, micro-assurances and standardizations of payment and delivery into the platform. The platform mainly takes commissions for successful matching and executing trade. (Journal of Cleaner Production Volume 213, 10 March 2019, Pages 320-331)
The USP of the ShareRing Business Model
The USP that ShareRing has is that it brings all of the different forms of sharing together in one app through partnerships and onboarding of users.
No other company, to date, is bringing everything together in such a way. However there are other factors that make ShareRing unique, which we will look at.
Token Economics
SHR is a utility token and will be used to pay for transactions on the network, such as 'new booking', 'add asset', etc. SHR is used by providers to pay for their access to the ShareLedger blockchain, including the addition of assets, renting out of assets, adding attributes, adding smart contracts, and other features.
SharePay (SHRP) is used by customers to pay for the rental of assets.
Masternodes will also be a main feature of the SHR token. When a transaction fee is incurred, it will be distributed in a way that allows for masternode holders who provide a service to the platform to receive a reward from each transaction. Transaction fees are charged to sharing providers in SHR. The distribution of transaction fees will be as follows: 50% - will be distributed amongst the active masternode holders who host an active node on the blockchain at that point in time (these holders provide a service to the platform). The distribution will be based on a calculation of the Total Amount Staked and the total continuous uptime of the node. 50% - will be provided to ShareRing Ltd (view ShareRing owned masternodes) for various purposes that contribute to working capital and platform growth.
Leased Proof of Stake Consensus
ShareRing have chosen the Leased Proof-of-Stake protocol as the consensus algorithm for ShareLedger. This choice is based on the practicality and security benefits evident in the Waves platform. It is also much more cost effective than Proof-of-Work (POW), and will not suffer from the current issues Bitcoin and other POW cryptocurrencies are facing such as scalability and electricity consumption.
As explained above master nodes will be a main feature but there is the other feature of lightweight nodes. A user with a lightweight node will be able to stake their tokens to a full node of their choosing and participate in reaching consensus. They will also be free to cancel their leasing at any time as there are no contracts or freezing periods. The more tokens that have been staked in a full node, the higher the probability the node will have in producing the next block. Since the reward is given based on the total number of tokens staked in the full node, there will always be a trade-off between the size of the full node and the percentage of the reward. As an average user of the platform, you will not need to have technical knowledge on how to set up a node nor will you have to download the entire blockchain in order to stake your tokens. Only a user who sets up a full node will be required to do this, making it simpler than ever for users to earn a reward for supporting the platform.
The return expected for staking is expected to be around 6 - 8% although this has yet to be confirmed.
Buybacks
ShareRing are currently implementing a series of buybacks which started in the beginning of November:
The buyback operation is done at a random time during the week.
If there is enough liquidity, SHR tokens will be bought through a single market order at the time of buyback. In case there is not enough liquidity, a limit buy order at last sell order price will be placed on the market, and will remain open until it gets filled.
The buyback program was implemented to test the API purchase process for when live transactions occur on ShareLedger
The Buyback Program is expected to:
  1. Reduce the supply of ShareTokens available in both public and private markets
  2. Bring New capital and fund inflows into the Shareledger
  3. Substantially magnify value creation for the ShareToken holders
The Token Flow
ShareRing will bring in hundreds of merchants to list their rental products, either exclusively or as part of an aggregator system e.g. When you look at the likes of trivago.com they will list the best hotel prices from multiple merchants who are listed on their website. Essentially ShareRing will become part of the aggregator ecosystem and be listed on sites like trivago.com as well as have exclusive agreements with merchants who are listed directly on their app.
ShareRing’s USP is that they have everything on one place as well as their OneID module with means buyers can get a hotel, rent a car, rent their ski equipment, book events all through the one app and using the OneID.
With that in mind they are going to attract a lot of merchants.
This is where it gets exciting so pay attention to this part.
When a merchant is part of the ShareRing ecosystem and a buyer rents something from that merchant ShareRing will take a small % commission from that transaction. So say someone books a hotel for $100 for the night, ShareRing might take $0.50 as a commission. What ShareRing will then do is go to one of the exchanges that ShareRing (SHR) is listed on and buy SHR tokens directly using an API system using USDT.
Now, the actual commission has not been disclosed yet however if we assume even a 0.25% commission that means for every $100 Million worth of bookings made through the app will net ShareRing $250,000 which means buy backs of $250,000 for the SHR token, which increases the liquidity of SHR on the exchanges.
If you think $100 Million of bookings is a lot, booking.com customers book around 1.5 Million rooms per day, if we estimate an average of $50 per room that is $75 million of bookings PER DAY or $2 Billion worth of bookings per month.
This revenue coupled with revenue from OneID and eVOA makes ShareRing profitable almost from day one of the app going live.
OneID And eVOA
Another exciting development from the ShareRing team is the collaboration between ShareRings Self Sovereign Identity protocol and third party providers to bring OneID and eVOA which will utilise OneID
With the huge rise in E-commerce and with over 2.82 billion people who now own a smartphone we are entrusting our personal information to more and more centralised entities. These entities are frequently hacked and our information is leaked to outside parties.
ShareRing aims to tackle this with their service OneID module.
ShareRing’s OneID solution protects users' data by handling Know Your Customer (KYC) information through third parties and ShareRing’s Self Sovereign Identity Protocol. ShareRing does not hold any identifying information anywhere on its servers. It provides the ultimate security for the renter and also the provider, as the Protocol encrypts and stores your data in a secure manner within your device. Essentially, this means that it is near impossible for a hack or data leak to happen, simply because there is no centralized server of data for hackers to exploit.
The OneID module is very easy to use. The end-user needs to complete their ID submission only once, with the entire submission process requiring less than two minutes to complete. Once this step has been completed, the customers KYC is destroyed by the 3rd party document verification system and the OneID module allows merchants to verify a customer’s identity via a hashed verification packet, stored on the users device and ShareLedger. This removes the need for merchants to store or see personal information; safeguarding both merchants and users from fraud.
To create your ShareRing OneID, simply:
  1. Take a picture of your government ID document
  2. Take a selfie
  3. Confirm and submit your details
This is something I am really excited about for ShareRing and they already have made partnerships for other companies to use this feature which is another income stream for ShareRing.
eVOA
E-Visa On Arrival allows applicants to apply online and receive a travel authorisation before departure – this eVOA can be shown at dedicated Thailand immigration counters on arrival at major Thailand airports, allowing travellers to pass through in minutes.
OneID system is scheduled to become the lynchpin technology in Thailand’s electronic Visa On Arrival (eVOA) system; one of only two companies to partner with Thai authorities to provide this service. The new Visa system eliminates much of the hassle involved in entering the country:
This is a strong validation of the OneID system - immigration controls are some of the most scrutinized processes in any branch of government, and if the OneID solution can operate to their standards then it is truly business-ready. As explained by our COO, Rohan Le Page:
“We are providing our OneID product for Thailand e-VOA (Visa On Arrival) that allows 5 Million travellers from 20 countries including China and India to complete the visa process on their mobile through our app. This provides a streamlined immigration process that negates the need for an expensive and time-consuming process when you get off the plane. Additionally, fraud is mitigated with several extra layers of security in the back end including our blockchain (ShareLedger) consensus model that makes all data immutable and all but impossible to hack.”
Profit Margins on OneID
So how does ShareRing make money from OneID and eVOA?
With each application for an eVOA using the OneID module ShareRing will make an undisclosed commission. The e-VOA is available to citizens of 21 different countries and is intended for those who will be holidaying in Thailand and not working in the country.
This means that each eVOA will last for a period of around 15 days which effectively means that ShareRing will get commission multiple times from each person travelling to one of the 21 countries listed below:
Andorra, Bhutan, Bulgaria, China, Ethiopia, Fiji, India, Kazakhstan, Latvia, Lithuania, Maldives, Malta, Mauritius, Papua New Guinea, Republic of Cyprus Romania, San Marino, Saudi Arabia, Taiwan, Ukraine, Uzbekistan
The profits on this alone, according to projections, are worth millions of dollars per year to ShareRing, with a healthy growth of about 35% in raw profit over the next 5 years, ultimately netting the company about $1.5 million profit per quarter.
The ShareLedger Blockchain Platform
ShareRing will utilize the registered intellectual property from the existing KeazACCESS framework (KEAZ: A car sharing company founded by Tim Bos) as well as improving it the blockchain experience in their team.
It will consist of fo the primary elements:
SharePay (SHRP) – SharePay is the base currency that will allow users of the ShareRing platform to pay for the use of third party assets. ShareToken (SHR)
ShareToken (SHR) is the digital utility token that drives sharing transactions to be written to the ShareRing ledger that is managed by the ShareRing platform.
Account – This will be a standard account, which such an account being represented by a 24-byte address. The account will contain 4 general fields:
SHRP – SharePay token balance
SHR – ShareToken balance
ASSETS – linked/owned by the account (see below for definition of an Asset) ATTRIBUTES – Any additional attributes that are associated with this account. These attributes may be updated or added by Sharing Economy providers that utilise the ledger such as ID checks by rental companies. These attributes may be ‘global’ (i.e. used by any sharing providers) or ‘local’ (i.e. used by a specific sharing provider).
Assets – An asset represents a tangible real-world or digital asset that is being shared, such as a car, a house, industrial machinery, an e-book, and so on.
Smart Contracts – Similar to a number of other blockchain platforms, such as Ethereum and NEO, the ShareLedger blockchain will feature highly customisable smart contracts. These Smart Contracts will allow for decentralised autonomous applications that can be attached to an asset and/or account. Every smart contract will be Turing complete, meaning it will have the ability to implement sophisticated logic to manage the sharing of the assets. The smart contracts will be tested and reviewed by ShareRing in a sandbox as well as audited by reputable third-party code auditors prior to implementation.
Proof of Stake Consensus
ShareRing have chosen the Leased Proof-of-Stake protocol as the consensus algorithm for ShareLedger. This choice is based on the practicality and security benefits evident in the Waves platform. It is also much more cost effective than Proof-of-Work (POW), and will not suffer from the current issues Bitcoin and other POW cryptocurrencies are facing such as scalability and electricity consumption.
The ShareRing App
At the heart of the ShareRing project lies the ShareRing app:
A universal ‘ShareRing’ app is being developed that will allow anyone to easily see and use any sharing services around them. Each partner will have the option of developing a ‘mini’ app within the ShareRing app that will have functionalities specific to that partner. The app will use geolocation-based services to display the ShareRing services that are nearby
Social Media Presence
Coming from a social media background I feel this is an extremely important area to look into, especially in the crypto world.
ShareRing has done an okay job in growing their social media presence however I feel it could be much better. Here is a look at some of the key stats for their online social media presence:
Youtube: 191 Subscribers Instagram: 238 Followers Linkedin: 376 Followers Telegram: 6,525 members (very active) Twitter: 2,216 Followers (Fairly regular updates) Facebook: 1,965 Followers
Whilst social media may not be a priority just now I feel there has to be a big presence with image-based platforms and video-based platforms. Youtube and Instagram should be made a priority here as it spans all generations:
Other News on ShareRing
There is a lot of stuff going on at the moment with ShareRing which is what makes it an exciting prospect. Rather than give information on each of them here are some highlights provided by the ShareRing team.:
- ShareRing's revolutionary ID management based module OneID.
- Worlds first Blockchain based eVOA in place with major Thai company targeting 5 to 10 million travellers from 20 countries.
- 2.6 million International Hotels/ Accommodation coming on to the Platform. Lots more to come!
- Partnership with HomeAway
- 200,000 Activites, Tours and Events added to the ShareRing App
- Multi Global Car Sharing Partnerships
- 1 Partner Directly Integrating SHR's OneID consisting of 1.2 million Vehicles across 150 Countries
- Luxury Car Brand Sharing Platform purely based on SHR
- SHR payment system SHRP available in 10% Taxi Terminals in Australia
- SHRP available in 10,000 EFTPOS Terminals Australia wide
- White Labelling Services incorporating ShareRings revolutionary OneID
- 20 Significant Unannounced Partnerships, more to come!
- Major Partners include -
- BYD (Largest Electric Car Maker in the World)
- DJI (Largest Drone Maker in the World)
- Keaz (300 locations around the world)
- Yogoo EV Car Sharing
- MOBI Alliance Member
Overview of Positives and Negatives
Negatives
Social Media and marketing possibly needs to be ramped up in order to bring more awareness to the project.
The roadmap and white paper has not been updated recently for 2019/2020 but this I believe is coming soon.
Positives
With a low market cap project like ShareRing the risk to reward ratio is very good for retail and institutional investors.
Technical analysis of current prices, currently at 31 Satoshi, is also very good with resistance levels at 50, 77 and 114 Satoshi which would be nearing its all time high.
Referral program will increase the numbers of users that are currently using the site.
If ShareRing can capture even a small % of the overall sharing market then success looks assured.
There are 20 new announcements coming up and with Tim Bos looking for more partnerships it seems likely that ShareRing will break ATH prices soon.
Great long term hold, in my opinion.
Realistic Expectations of ROI
Short term (4 weeks - 12 weeks)
Short term looks great for ShareRing both from a TA point of view and a fundamental point of view.
With lots of news still to come out about ShareRing there is not going to be a shortage of fundamentals to drive the price up. From a TA point of view the next line of resistance stands at around the 50 Satoshi level which would complete a massive cup and handle formation from August 24th of this year. After that we are looking at resistances of 77 and 114 to reach near the all time highs which i expect ShareRing to reach going into 2020.
Long term (6 Months - 2 Years)
If ShareRing can onboard users and keep on making partnerships at the same rate there will be no stopping it. It’s all about onboarding the users and utilising the most powerful marketing tool ever - word of mouth!
When a great app is realised with great and useful functionality then it tends to go viral and I am hoping this happens for ShareRing.
With a market cap at the moment of just under $6 Million then I don’t think it’s crazy to talk about 1000% increases in the next 2 years and I really believe that is being extremely conservative, given where we think crypto is heading as a whole.
submitted by Grills93 to CryptoMoonShots [link] [comments]

Marchero

With two cryptocurrency integrations under my belt I've set out with a solid plan for Monero.
Instead of jumping in and figuring it out as I go along I want to make sure that I have the solutions I'll need, well defined and scoped out. It's a good thing I'm going this path, too.
Turns out that there isn't really much in the way of JavaScript code for Monero out there. Probably the two best (and possibly only), solutions at the moment are monero-javascript and MyMonero.
Although there's no official Monero JavaScript library, the monero-javascript project is probably the closest to the original C++ client. This derived code comes in the form of WebAssembly, a low-level language that runs a lot closer to the metal than JavaScript. This means that WebAssembly is generally faster when doing things like calculations, but with some trade-offs like ease of use. JavaScript is a lot easier to code and understand, but it tends to run slower. In modern browsers, both run side by side so developers can decide which parts need to work fast, and which parts need to be easier to change and maintain.
The MyMonero project is actually a set of supporting libraries for a Monero wallet. It seems to have a lot more "real world" mileage but has a smaller dev team and hasn't been updated for many months, unlike monero-javascript which was updated as recently as today. MyMonero also uses WebAssembly for some of the core wallet functionality but the "bindings", or how this functionality is exposed to JavaScript, are different.
Between the two solutions, I've had more luck in getting support for monero-javascript. Neither project is well documented so having someone to run questions by is, at least at this point, a winning feature.
This will be my first time working with WebAssembly so factoring in some learning time is prudent. I'll only be learning to use existing code rather than learning how to write it but still, it's a new thing for me.
As I mentioned, support for Monero via JavaScript is surprisingly rare, so I may end up contributing some original code back to the project(s) I'll be using. I haven't yet decided which of them will find its way into CypherPoker.JS because there are still some open questions about how certain things are done and if they're even possible. However, right now monero-javascript is looking like the best choice.
Once I'm satisfied that all the building blocks are viable, I'll add the cryptocurrency handler and integrate it all the way through to the front end. As with BTC and BCH, a Monero testnet option will be available along with a faucet so that you can test it out without using any actual XMR. A full client option that uses the downloadable monerod client, the equivalent of a full Bitcoin node, will be available alongside the "light" option which will use external APIs. After that I'll upgrade the live demo (and server), update the wallet generator, post v0.5.2 code documentation, create a new release, and write a wrap-up post.
I want to stress again that this is all contingent on whether or not the JavaScript libraries actually do what I need them to do, and if there exists at least one public API that can be used in place of the daemon (monerod). But based on the help I've received from the Monero community so far I'm feeling optimistic.
Probably the most interesting thing about the Monero integration is that it represents the final, Rumsfeldian, "known unknown" of the CypherPoker.JS project. It's the last thing I'm embarking on with essentially zero prior knowledge; I know that I know nothing.
The rest of the project, the other cryptocurrencies, smart contracts, peer-to-peer communications - those are all things I'd at least had an introduction to if not outright practical knowledge of. When it comes time to add Ethereum support I'll be able to confidently say that it's nothing new. Incorporating Tor anonymization ... been there, done that.
When it comes to Monero, though, I'm a wide-eyed ignoramus. Never owned any XMR, never ran a Monero wallet, never tried out a Monero block explorer; seems I'm even getting some of the technical terminology wrong. Basically, it's the last part of the project's core vision that comes with a steep learning curve and a not-insignificant chance of failure. I mean, I don't think I'm gonna fail but I can't point to any definitive reason why I should think that.
There's no pragmatic reason to believe that March and (the) Monero (integration) will be contemporaneous but then again, why not?
submitted by monican_agent to cypherpoker [link] [comments]

Homelab collective ressources post!

Hey guys!
I'm fairly new to this sub and to having a home lab in general and I found this community to be so kind and helping, I wanted to give back what I've learned. I'm seeing a lot of questions asked around on improvements and on what to do with x extra hardware so I thought it would be nice to have a thread to regroup that.
 
I'll put here some stuff I gathered and the most common questions I've seen, feel free to contribute and i'll update the post along.
 
Latest Additions
 
Homelab Dashboard
Posts about dashboards have been growing lately and here are some of the best that were kind enough to provide us with their sources.
User Screenshot Source
yours truly http://imgur.com/a/GhCNH https://github.com/Gabisonfire/dashboard-q
lastditchefrt http://i.imgur.com/5zQdao4.png https://github.com/d4rk22/Network-Status-Page
_SleepingBag_ http://i.imgur.com/Ql9ZM4W.png https://github.com/jsank/homelabdash
NiknakSi https://niknak.org/extras/sysinfo TBA
DainBramaged http://imgur.com/jYNlUEQ https://github.com/gordonturneBigBoard
michaelh4u https://i.imgur.com/XkZwMKj.png https://github.com/michaelh4u/homelabfrontpage
spigotx http://imgur.com/a/1zMht https://github.com/spigotx/HomeLab2
SirMaster https://nicko88.com/ https://github.com/dashbad/plex-server-status
yourofl10 http://imgur.com/a/AyROa TBA
TheBobWiley http://imgur.com/a/oU6d3 https://github.com/TheBobWiley/ManageThis-LandingPages
0110010001100010 http://i.imgur.com/iwtQcsL.jpg https://github.com/danodemano/monitoring-scripts
mescon & SyNiK4L https://i.imgur.com/gqdVM6p.jpg https://github.com/mescon/Muximux
ak_rex http://i.imgur.com/a/RJkrT https://github.com/ak-rex/homelab-dashboard
 
Or build yours from scratch: PRTG API, ELK, Grafana, freeboard, JumpSquares
 
Some other resources: Custom Monitoring Scripts by 0110010001100010
 
Credits to apt64 for his original post
= Pi specific =
 
= Download Automation =
 
= Virtualization =
 
= Monitoring =
 
= Media Center =
 
= Remote access =
 
= VOIP =
 
= Networking =
 
= File Servers/Storage/RAID =
 
= Cameras =
 
= Documentation =
 
= Dynamic DNS =
 
= Backup =
 
= Creating network diagrams =
 
= Guides =
 
= Misc =
 
That's all I could come up with on top of my head + some research, passing over to you guys so we can get a nice complete list!
 
Let's try and stick with free(or mostly) softwares, let me know if you guys feel otherwise.
submitted by Gabisonfire to homelab [link] [comments]

Looking for frontend developers and artists for building CryptoPandas during the SLP hackathon!

We’re looking for experts for building CryptoPandas during the SLP hackathon.
CryptoPandas is basically an adaptation of CryptoKitties to the Bitcoin Cash blockchain, but with lower fees and an (arguably) cuter species.
CryptoPandas uses SLP NFT1 tokens to represent the genome of a panda. New pandas can be birthed by anyone who has a male and a female panda. Only panda tokens following the birthing specification will be considered valid, similar to how only SLP transactions have to follow the SLP rules, albeit invalid token transactions may exist on the blockchain.
For the user, the process looks as follows:
For the implementation during the hackathon, the following has to be implemented:
This would require the following experts: - A Script/CashScript developer (that could be me). - An SLP-savvy backend developer (could be me too). - A general backend developer who sets up the APIs for the frontend and does the panda validation. - An SLP-savvy frontend developer (assuming WebAssembly is an option, that would be pretty much the same as the above) for performing the birthing process. - A panda-savvy artist who’s able to create different layers for different traits of pandas (definitely not me). - A general frontend developer who’s good at creating a good UX (absolutely not me).
If any of the above seem attractive to you, please write me on telegram: @tobiassan
The technical process looks as follows (review SLP NFT1 specification for SLP details):
While this scheme is quite complex, it fully non-interactive, ie. the only thing the operators of CryptoPandas have to do is maintain a pool of anyone-can-spend parent tokens. Verification has the same properties as the Simple Ledger Protocol, meaning to verify a panda token, a DAG check has to be performed.
submitted by eyeofpython to btc [link] [comments]

BiblePay Evolution - What is it?

Quote from: togoshigekata on March 16, 2019, 02:00:02 PM BiblePay is a fork of the Dash code, our code started out as some version of the Dash coin code, but we havent included (merged in) all the latest Dash code changes (we have had our own developments and only merged in security things)
Dash has released a few new updates called Dash Evolution, and Rob is [adding] those into BiblePay A little more technical, I believe Rob [starting] with the latest Dash code, and then [putting] all the BiblePay stuff inside of it Quote from: bible_pay on March 16, 2019, 02:52:17 PM
Yes, this is exactly right, BiblePay Evolution is going to be our next version, and it includes all the features of Dash Evolution
- deterministic sanctuaries - chainlocks - non-financial transactions - atomic trade - lightning support - daaps - decentralized api - segwit - all the new DIPS - all the latest bitcoin commits for security - all the stuff that happened over the last year in Dash - the Depends system for devs - c++14 source code - new compiler support - easier building
Lots of good things to be a base from. And we do whats called a "re-base", meaning we merge our biblepay code into Evolution, and offer a new release.


Some Dash Evo Documentation https://docs.dash.org/en/latest/introduction/features.html#evolution https://dashcrypto.org/technology/dash-evolution/ https://github.com/dashpay/dash/blob/v0.13.0.0/doc/release-notes.md
Dash Roadmap https://www.dash.org/roadmap/
Dash Paper v13 https://issuu.com/dash-coin/docs/dashpaper-v13-v1 (Read by Amanda B Johnson?: https://www.youtube.com/watch?v=tfBAsxh6H50)
Dash DIPs (Dash Improvement Proposals) https://github.com/dashpay/dips

Dash Releases Evolution's Foundation in Largest Upgrade Ever by Amanda B Johnson https://www.youtube.com/watch?v=tLInZDCIdEo
Dash To Become Immune to 51% Attacks https://www.youtube.com/watch?v=EDIfxfjbpkA

TestNet - BiblePay-Evolution & GSCs (Generic Smart Contracts) https://forum.biblepay.org/index.php?topic=391.msg5518#msg5518
Generic Smart Contracts https://wiki.biblepay.org/Generic_Smart_Contracts
BiblePay Roadmap https://wiki.biblepay.org/Roadmap

Quote from: bible_pay on April 07, 2019, 07:19:19 AM
With the release of BiblePay-Evolution coming in 60 days, I thought this would be a good time to:
  1. Demonstrate our differences - and explain how/why we are Superior to other cryptos
  2. Compare BiblePay to a potential slot in the Top 100 (I see that our features rank us somewhere between #70 and #100, but I will make a case for #26 once Evolution is released - see chart column D features to achieve #26)
  3. Show exactly where we expect this feature to fit in our release schedule (note that most of these features are being tested in Evo, and only some are held back for Dec 2019 and Dec 2020).
  4. Show our progress over time - how our decisions evolved that resulted in constant improvements to our core platform over time. See on this matrix how we have transcended from problematic in certain areas, with responsible improvements addressing the problems, and finally releasing a good and permanent solution (See Chart #2).
In the First Chart, (Nutritional Info Guide), you can see some of BiblePay's advanced features. These are things that are not in other communities wallets. Obviously over the last 2 years, some features have been removed, but its clear that a significant amount of our code has withstood the test of time and has survived the transition to Evo and is useful to the community.
The in-wallet bible reader, the decentralized GSC creatovoter, our persisted data storage cache (for prayers, campaigns and points), our anti-gpu and upcoming ABN feature, etc. The wallet is changing again in it's foundation, to provide new interfaces and abstraction layers (as Q3 approaches) so we will have the base to add our extended UI (HTML5) for example for the features to the far right in the chart.
I also provide a key of definitions for anyone that is not familiar - or if you think we need more explanation for a term. Please don't hesitate to ask for definitions to be added, and I will modify the wiki!
Finally at the bottom of the page, please see the detail table demonstrating how we have evolved in a positive way. This shows that we have taken into consideration everything complaints in production (for example, improving Prod reliability as you can see is #1 in paramount importance, anti-fork technology is prioritized to #2, etc). You can also see that all the work we did in 2018 has not been wasted and that what we learned about botnets and POBH is also still present and has evolved for this next release.
Nutritional Information Guide: https://wiki.biblepay.org/Nutrition_Information

Quote from: bible_pay on April 16, 2019, 08:58:32 AM
I spoke to RattleR at GIN today and he confirmed they have upgraded their platform to handle Deterministic Sanctuaries (Evolution).
So this is a positive thing for us as we will not be hindered while transitioning.
GIN Masternode Hosting: https://p.ginplatform.io/#!/

Quote from: bible_pay on April 09, 2019, 07:08:31 AM
I realize we have been through an absolutely massive amount of changes and this is partially because the IT requirements list in this project has expanded beyond the original scope required for a launch and then software maintenance (even for a DAC).
But let me put your mind at ease in a couple areas. Inside the Evo release, we are no longer looking at individual requirements to fulfill an objective. We are now actually making a generic extensible abstraction layer that I believe can handle all of the DAC requirements in the future. (Including decentralized orphanage contracts and Cioccolanti's integration ideas and web tipping and HTML5 and all that).
So what this means is the end is coming for continual changes (and I don't want those either, I'm on board with this). The other very large item is our change to be rebase proof that is coming. Starting in Evo, we are going to release code in a way where we continually honor Dash's future prod commits as they commit also (meaning this will future proof biblepay).
Regarding the actual content you do have a say. Please join us in the testnet thread and test Evo and paste wishlist items. I want Evo to be easy to use for everyone + Grandma.
Finally, even though Evo looks daunting because of acronyms, we are still going to create a dashboard for Grandma towards the end of the cycle so you can drive Evo like a normal car.

Quote from: togoshigekata on April 17, 2019, 07:14:08 PM
BiblePay Forum - TestNet - BiblePay-Evolution & GSCs (Generic Smart Contracts) https://forum.biblepay.org/index.php?topic=391.0
Github - BiblePay Evolution https://github.com/biblepay/biblepay-evolution
Quote from: bible_pay I'm starting to add some documentation to explain to new users how to get started:
Getting started with Evolution: https://wiki.biblepay.org/Getting_Started_with_Evolution
GSC's: https://wiki.biblepay.org/Generic_Smart_Contracts
Healing Campaign: https://wiki.biblepay.org/BiblePay_Healing_Campaign
Street Healing: https://wiki.biblepay.org/Street_Healing
Spiritual Warfare: https://wiki.biblepay.org/Spiritual-Warfare-I
I realize we need a specific section for Grandma also - I'll continue to refine the getting started guide.
Please let me know if anyone would like to see more expanded info on any of these, and/or if this is sufficient to call us "easy to use" with the release of Evo.

Reference: https://bitcointalk.org/index.php?topic=2388064.msg50692748#msg50692748
submitted by togoshige to BiblePay [link] [comments]

Weekly update: 21st June, 2019

Hi everyone 👋 The sun is shining here and Bitcoin is up, so all is good with the world ☀️
I have quite a bit to update you on today... here we go!
Moses Skoda joined the team this week. He's working on our services layer.
We've made strong headway with the build of our updated site, focused on core network services. We've also closed out the final colour ways and font choices or the brand update. I'll be sharing some detail on this front with you next week.
And I expect us to be rolling out the changes in the first half of July.
Suffice to say, Ravi's done an awesome job.
We had the PPA awards this week, where Paul presented one of the gongs:
https://preview.redd.it/bscpehq2bh631.jpg?width=1280&format=pjpg&auto=webp&s=4081c9c5a1956edd1ea2273fb0799dfdce0eeba9
It was a really positive evening for us – we have 20+ new conversations opened up on the back of the event.
I met with David Wilde to plan introductions to local government, and to explore methods for supporting delivery, for example by embedded our networking software within local data centres.
We also discussed the detail of for his ongoing engagement with the project, covering speaking arrangements, articles and an approach for central government.
I wrote an article for Fintech magazine which should be published next week. I'll share the link when it's published.
We kicked off with our new PR. Wind up time can take a while, but it's underway.
We've increased our engagement with one of our existing customers, who are now working with us on a deeper level to integrate core services.
One of our advisors Sean King is representing us in Cannes for the Cannes Lions this week, and has a few promising leads which we will be follow up on next week.
We have another promising engagement in construction industry, which is the final throws of being defined before kicking off. As soon as we have more to share, we will.
The networking team have been continuing to put the finishing touches to the ACL migration piece required ahead of next months Mainnet release. This will make the transition from a single global ACL token to a per-user token seamless.
They also closed out enhancement work to the DNS service within the Edge network. it now supports all major record types in full, including MX, CNAME, NS and SOA record types.
It has also been refactoring in to an interface which makes extending record type coverage simple and lightweight. A version of this will be used for consumer level interfaces. More detail on this service will be released in the coming weeks.
Roadmap updates and timings were also completed this week. Items in the roadmap include:
...And a bunch more besides
!
We will be releasing a version of this to the community next week, and a full version with the release of the updated site in July.
Ecohustler went viral.
One of their articles (https://ecohustler.com/article/one-corporation-to-pollute-them-all/) was picked up by just about every social platform you can imagine. At peak the site was receiving 1k+ concurrent connections.
That's an increase in traffic of 16,566%. Pretty significant! Uptime during the stampede? 100%
API version 5 was released!
Release notes as follows:
https://github.com/dadi/api/releases/tag/v5.0.0
And documentation can be found here:
https://github.com/dadi/api/releases/tag/v5.0.0
We've also made huge strides in the definition of what will become a stand alone SaaS proposition for our web services. Some of you are already aware of the work being done on this front, but in summary: we are breaking out the web services in the network and will be offering them under a new brand and on a new - and very powerful - domain.
The reason for this is to allow us to focus the network on network-level services, better supporting its go to market.
This approach also means that we don't loose the momentum and investment made in the web services to date, and will present a stand alone entry point to use of the network (use of the web services under their new brand will deliver revenue directly back to the network).
We'll be announcing this formally when the full branding work for the proposition has been completed. We expect this to be in July.
The focus for the technology has been on maintaining an open source platform and enabling local development workflows as a key point of difference and supporting mechanic for the SaaS solution.
With regard to token price, I'm happy to see a continued upward trend since early May (+32%).
The token remains central to the network as the only method of realising an internal marketplace that pays for services within an edge proposition at scale. This utility will be further cemented as we move closer to stand alone contracts, and as we work to find new methods for storing the data of the network in the blockchain.
And that's it this week. Enjoy your weekends ✌️
submitted by josephdenne to DADI [link] [comments]

Your Guide to Monero, and Why It Has Great Potential

/////Your Guide to Monero, and Why It Has Great Potential/////

Marketing.
It's a dirty word for most members of the Monero community.
It is also one of the most divisive words in the Monero community. Yet, the lack of marketing is one of the most frustrating things for many newcomers.
This is what makes this an unusual post from a member of the Monero community.
This post is an unabashed and unsolicited analyzation of why I believe Monero to have great potential.
Below I have attempted to outline different reasons why Monero has great potential, beginning with upcoming developments and use cases, to broader economic motives, speculation, and key issues for it to overcome.
I encourage you to discuss and criticise my musings, commenting below if you feel necessary to do so.

///Upcoming Developments///

Bulletproofs - A Reduction in Transaction Sizes and Fees
Since the introduction of Ring Confidential Transactions (Ring CT), transaction amounts have been hidden in Monero, albeit at the cost of increased transaction fees and sizes. In order to mitigate this issue, Bulletproofs will soon be added to reduce both fees and transaction size by 80% to 90%. This is great news for those transacting smaller USD amounts as people commonly complained Monero's fees were too high! Not any longer though! More information can be found here. Bulletproofs are already working on the Monero testnet, and developers were aiming to introduce them in March 2018, however it could be delayed in order to ensure everything is tried and tested.
Multisig
Multisig has recently been merged! Mulitsig, also called multisignature, is the requirement for a transaction to have two or more signatures before it can be executed. Multisig transactions and addresses are indistinguishable from normal transactions and addresses in Monero, and provide more security than single-signature transactions. It is believed this will lead to additional marketplaces and exchanges to supporting Monero.
Kovri
Kovri is an implementation of the Invisible Internet Project (I2P) network. Kovri uses both garlic encryption and garlic routing to create a private, protected overlay-network across the internet. This overlay-network provides users with the ability to effectively hide their geographical location and internet IP address. The good news is Kovri is under heavy development and will be available soon. Unlike other coins' false privacy claims, Kovri is a game changer as it will further elevate Monero as the king of privacy.
Mobile Wallets
There is already a working Android Wallet called Monerujo available in the Google Play Store. X Wallet is an IOS mobile wallet. One of the X Wallet developers recently announced they are very, very close to being listed in the Apple App Store, however are having some issues with getting it approved. The official Monero IOS and Android wallets, along with the MyMonero IOS and Android wallets, are also almost ready to be released, and can be expected very soon.
Hardware Wallets
Hardware wallets are currently being developed and nearing completion. Because Monero is based on the CryptoNote protocol, it means it requires unique development in order to allow hardware wallet integration. The Ledger Nano S will be adding Monero support by the end of Q1 2018. There is a recent update here too. Even better, for the first time ever in cryptocurrency history, the Monero community banded together to fund the development of an exclusive Monero Hardware Wallet, and will be available in Q2 2018, costing only about $20! In addition, the CEO of Trezor has offered a 10BTC bounty to whoever can provide the software to allow Monero integration. Someone can be seen to already be working on that here.
TAILS Operating System Integration
Monero is in the progress of being packaged in order for it to be integrated into TAILS and ready to use upon install. TAILS is the operating system popularised by Edward Snowden and is commonly used by those requiring privacy such as journalists wanting to protect themselves and sources, human-right defenders organizing in repressive contexts, citizens facing national emergencies, domestic violence survivors escaping from their abusers, and consequently, darknet market users.
In the meantime, for those users who wish to use TAILS with Monero, u/Electric_sheep01 has provided Sheep's Noob guide to Monero GUI in Tails 3.2, which is a step-by-step guide with screenshots explaining how to setup Monero in TAILS, and is very easy to follow.
Mandatory Hardforks
Unlike other coins, Monero receives a protocol upgrade every 6 months in March and September. Think of it as a Consensus Protocol Update. Monero's hard forks ensure quality development takes place, while preventing political or ideological issues from hindering progress. When a hardfork occurs, you simply download and use the new daemon version, and your existing wallet files and copy of the blockchain remain compatible. This reddit post provides more information.
Dynamic fees
Many cryptocurrencies have an arbitrary block size limit. Although Monero has a limit, it is adaptive based on the past 100 blocks. Similarly, fees change based on transaction volume. As more transactions are processed on the Monero network, the block size limit slowly increases and the fees slowly decrease. The opposite effect also holds true. This means that the more transactions that take place, the cheaper the fees!
Tail Emission and Inflation
There will be around 18.4 million Monero mined at the end of May 2022. However, tail emission will kick in after that which is 0.6 XMR, so it has no fixed limit. Gundamlancer explains that Monero's "main emission curve will issue about 18.4 million coins to be mined in approximately 8 years. (more precisely 18.132 Million coins by ca. end of May 2022) After that, a constant "tail emission" of 0.6 XMR per 2-minutes block (modified from initially equivalent 0.3 XMR per 1-minute block) will create a sub-1% perpetual inflatio starting with 0.87% yearly inflation around May 2022) to prevent the lack of incentives for miners once a currency is not mineable anymore.
Monero Research Lab
Monero has a group of anonymous/pseudo-anonymous university academics actively researching, developing, and publishing academic papers in order to improve Monero. See here and here. The Monero Research Lab are acquainted with other members of cryptocurrency academic community to ensure when new research or technology is uncovered, it can be reviewed and decided upon whether it would be beneficial to Monero. This ensures Monero will always remain a leading cryptocurrency. A recent end of 2017 update from a MRL researcher can be found here.

///Monero's Technology - Rising Above The Rest///

Monero Has Already Proven Itself To Be Private, Secure, Untraceable, and Trustless
Monero is the only private, untraceable, trustless, secure and fungible cryptocurrency. Bitcoin and other cryptocurrencies are TRACEABLE through the use of blockchain analytics, and has lead to the prosecution of numerous individuals, such as the alleged Alphabay administrator Alexandre Cazes. In the Forfeiture Complaint which detailed the asset seizure of Alexandre Cazes, the anonymity capabilities of Monero were self-demonstrated by the following statement of the officials after the AlphaBay shutdown: "In total, from CAZES' wallets and computer agents took control of approximately $8,800,000 in Bitcoin, Ethereum, Monero and Zcash, broken down as follows: 1,605.0503851 Bitcoin, 8,309.271639 Ethereum, 3,691.98 Zcash, and an unknown amount of Monero".
Privacy CANNOT BE OPTIONAL and must be at a PROTOCOL LEVEL. With Monero, privacy is mandatory, so that everyone gets the benefits of privacy without any transactions standing out as suspicious. This is the reason Darknet Market places are moving to Monero, and will never use Verge, Zcash, Dash, Pivx, Sumo, Spectre, Hush or any other coins that lack good privacy. Peter Todd (who was involved in the Zcash trusted setup ceremony) recently reiterated his concerns of optional privacy after Jeffrey Quesnelle published his recent paper stating 31.5% of Zcash transactions may be traceable, and that only ~1% of the transactions are pure privacy transactions (i.e., z -> z transactions). When the attempted private transactions stand out like a sore thumb there is no privacy, hence why privacy cannot be optional. In addition, in order for a cryptocurrency to truly be private, it must not be controlled by a centralised body, such as a company or organisation, because it opens it up to government control and restrictions. This is no joke, but Zcash is supported by DARPA and the Israeli government!.
Monero provides a stark contrast compared to other supposed privacy coins, in that Monero does not have a rich list! With all other coins, you can view wallet balances on the blockexplorers. You can view Monero's non-existent rich list here to see for yourself.
I will reiterate here that Monero is TRUSTLESS. You don't need to rely on anyone else to protect your privacy, or worry about others colluding to learn more about you. No one can censor your transaction or decide to intervene. Monero is immutable, unlike Zcash, in which the lead developer Zooko publicly tweeted the possibility of providing a backdoor for authorities to trace transactions. To Zcash's demise, Zooko famously tweeted:
" And by the way, I think we can successfully make Zcash too traceable for criminals like WannaCry, but still completely private & fungible. …"
Ethereum's track record of immutability is also poor. Ethereum was supposed to be an immutable blockchain ledger, however after the DAO hack this proved to not be the case. A 2016 article on Saintly Law summarised the problematic nature of Ethereum's leadership and blockchain intervention:
" Many ethereum and blockchain advocates believe that the intervention was the wrong move to make in this situation. Smart contracts are meant to be self-executing, immutable and free from disturbance by organisations and intermediaries. Yet the building block of all smart contracts, the code, is inherently imperfect. This means that the technology is vulnerable to the same malicious hackers that are targeting businesses and governments. It is also clear that the large scale intervention after the DAO hack could not and would not likely be taken in smaller transactions, as they greatly undermine the viability of the cryptocurrency and the technology."
Monero provides Fungibility and Privacy in a Cashless World
As outlined on GetMonero.org, fungibility is the property of a currency whereby two units can be substituted in place of one another. Fungibility means that two units of a currency can be mutually substituted and the substituted currency is equal to another unit of the same size. For example, two $10 bills can be exchanged and they are functionally identical to any other $10 bill in circulation (although $10 bills have unique ID numbers and are therefore not completely fungible). Gold is probably a closer example of true fungibility, where any 1 oz. of gold of the same grade is worth the same as another 1 oz. of gold. Monero is fungible due to the nature of the currency which provides no way to link transactions together nor trace the history of any particular XMR. 1 XMR is functionally identical to any other 1 XMR. Fungibility is an advantage Monero has over Bitcoin and almost every other cryptocurrency, due to the privacy inherent in the Monero blockchain and the permanently traceable nature of the Bitcoin blockchain. With Bitcoin, any BTC can be tracked by anyone back to its creation coinbase transaction. Therefore, if a coin has been used for an illegal purpose in the past, this history will be contained in the blockchain in perpetuity.
A great example of Bitcoin's lack of fungibility was reposted by u/ViolentlyPeaceful:
"Imagine you sell cupcakes and receive Bitcoin as payment. It turns out that someone who owned that Bitcoin before you was involved in criminal activity. Now you are worried that you have become a suspect in a criminal case, because the movement of funds to you is a matter of public record. You are also worried that certain Bitcoins that you thought you owned will be considered ‘tainted’ and that others will refuse to accept them as payment."
This lack of fungibility means that certain businesses will be obligated to avoid accepting BTC that have been previously used for purposes which are illegal, or simply run afoul of their Terms of Service. Currently some large Bitcoin companies are blocking, suspending, or closing accounts that have received Bitcoin used in online gambling or other purposes deemed unsavory by said companies. Monero has been built specifically to address the problem of traceability and non-fungibility inherent in other cryptocurrencies. By having completely private transactions Monero is truly fungible and there can be no blacklisting of certain XMR, while at the same time providing all the benefits of a secure, decentralized, permanent blockchain.
The world is moving cashless. Fact. The ramifications of this are enormous as we move into a cashless world in which transactions will be tracked and there is a potential for data to be used by third parties for adverse purposes. While most new cryptocurrency investors speculate upon vaporware ICO tokens in the hope of generating wealth, Monero provides salvation for those in which financial privacy is paramount. Too often people equate Monero's features with criminal endeavors. Privacy is not a crime, and is necessary for good money. Transparency in Monero is possible OFF-CHAIN, which offers greater transparency and flexibility. For example, a Monero user may share their Private View Key with their accountant for tax purposes.
Monero aims to be adopted by more than just those with nefarious use cases. For example, if you lived in an oppressive religious regime and wanted to buy a certain item, using Monero would allow you to exchange value privately and across borders if needed. Another example is that if everybody can see how much cryptocurrency you have in your wallet, then a certain service might decide to charge you more, and bad actors could even use knowledge of your wallet balance to target you for extortion purposes. For example, a Russian cryptocurrency blogger was recently beaten and robbed of $425k. This is why FUNGIBILITY IS ESSENTIAL. To summarise this in a nutshell:
"A lack of fungibility means that when sending or receiving funds, if the other person personally knows you during a transaction, or can get any sort of information on you, or if you provide a residential address for shipping etc. – you could quite potentially have them use this against you for personal gain"
For those that wish to seek more information about why Monero is a superior form of money, read The Merits of Monero: Why Monero Vs Bitcoin over on the Monero.how website.
Monero's Humble Origins
Something that still rings true today despite the great influx of money into cryptocurrencies was outlined in Nick Tomaino's early 2016 opinion piece. The author claimed that "one of the most interesting aspects of Monero is that the project has gained traction without a crowd sale pre-launch, without VC funding and any company or well-known investors and without a pre-mine. Like Bitcoin in the early days, Monero has been a purely grassroots movement that was bootstrapped by the creator and adopted organically without any institutional buy-in. The creator and most of the core developers serve the community pseudonymously and the project was launched on a message board (similar to the way Bitcoin was launched on an email newsletter)."
The Organic Growth of the Monero Community
The Monero community over at monero is exponentially growing. You can view the Monero reddit metrics here and see that the Monero subreddit currently gains more than 10,000 (yes, ten thousand!) new subscribers every 10 days! Compare this to most of the other coins out there, and it proves to be one of the only projects with real organic growth. In addition to this, the community subreddits are specifically divided to ensure the main subreddit remains unbiased, tech focused, with no shilling or hype. All trading talk is designated to xmrtrader, and all memes at moonero.
Forum Funding System
While most contributors have gratefully volunteered their time to the project, Monero also has a Forum Funding System in which money is donated by community members to ensure it attracts and retains the brightest minds and most skilled developers. Unlike ICOs and other cryptocurrencies, Monero never had a premine, and does not have a developer tax. If ANYONE requires funding for a Monero related project, then they can simply request funding from the community, and if the community sees it as beneficial, they will donate. Types of projects range from Monero funding for local meet ups, to paying developers for their work.
Monero For Goods, Services, and Market Places
There is a growing number of online goods and services that you can now pay for with Monero. Globee is a service that allows online merchants to accept payments through credit cards and a host of cryptocurrencies, while being settled in Bitcoin, Monero or fiat currency. Merchants can reach a wider variety of customers, while not needing to invest in additional hardware to run cryptocurrency wallets or accept the current instability of the cryptocurrency market. Globee uses all of the open source API's that BitPay does making integrations much easier!
Project Coral Reef is a service which allows you to shop and pay for popular music band products and services using Monero.
Linux, Veracrypt, and a whole array of VPNs now accept Monero.
There is a new Monero only marketplace called Annularis currently being developed which has been created for those who value financial privacy and economic freedom, and there are rumours Open Bazaar is likely to support Monero once Multisig is implemented.
In addition, Monero is also supported by The Living Room of Satoshi so you can pay bills or credit cards directly using Monero.
Monero can be found on a growing number of cryptocurrency exchange services such as Bittrex, Poloniex, Cryptopia, Shapeshift, Changelly, Bitfinex, Kraken, Bisq, Tux, and many others.
For those wishing to purchase Monero anonymously, there are services such as LocalMonero.co and Moneroforcash.com.
With XMR.TO you can pay Bitcoin addresses directly with Monero. There are no other fees than the miner ones. All user records are purged after 48 hours. XMR.TO has also been added as an embedded feature into the Monerujo android wallet.
Coinhive Browser-Based Mining
Unlike Bitcoin, Monero can be mined using CPUs and GPUs. Not only does this encourage decentralisation, it also opens the door to browser based mining. Enter side of stage, Coinhive browser-based mining. As described by Hon Lau on the Symnatec Blog Browser-based mining, as its name suggests, is a method of cryptocurrency mining that happens inside a browser and is implemented using Javascript. Coinhive is marketed as an alternative to browser ad revenue. The motivation behind this is simple: users pay for the content indirectly by coin mining when they visit the site and website owners don't have to bother users with sites laden with ads, trackers, and all the associated paraphern. This is great, provided that the websites are transparent with site visitors and notify users of the mining that will be taking place, or better still, offer users a way to opt in, although this hasn't always been the case thus far.
Skepticism Sunday
The main Monero subreddit has weekly Skepticism Sundays which was created with the purpose of installing "a culture of being scientific, skeptical, and rational". This is used to have open, critical discussions about monero as a technology, it's economics, and so on.

///Speculation///

Major Investors And Crypto Figureheads Are Interested
Ari Paul is the co-founder and CIO of BlockTower Capital. He was previously a portfolio manager for the University of Chicago's $8 billion endowment, and a derivatives market maker and proprietary trader for Susquehanna International Group. Paul was interviewed on CNBC on the 26th of December and when asked what was his favourite coin was, he stated "One that has real fundamental value besides from Bitcoin is Monero" and said it has "very strong engineering". In addition, when he was asked if that was the one used by criminals, he replied "Everything is used by criminals including the US dollar and the Euro". Paul later supported these claims on Twitter, recommending only Bitcoin and Monero as long-term investments.
There are reports that "Roger Ver, earlier known as 'Bitcoin Jesus' for his evangelical support of the Bitcoin during its early years, said his investment in Monero is 'substantial' and his biggest in any virtual currency since Bitcoin.
Charlie Lee, the creator of Litecoin, has publicly stated his appreciation of Monero. In a September 2017 tweet directed to Edward Snowden explaining why Monero is superior to Zcash, Charlie Lee tweeted:
All private transactions, More tested privacy tech, No tax on miners to pay investors, No high inflation... better investment.
John McAfee, arguably cryptocurrency's most controversial character at the moment, has publicly supported Monero numerous times over the last twelve months(before he started shilling ICOs), and has even claimed it will overtake Bitcoin.
Playboy instagram celebrity Dan Bilzerian is a Monero investor, with 15% of his portfolio made up of Monero.
Finally, while he may not be considered a major investor or figurehead, Erik Finman, a young early Bitcoin investor and multimillionaire, recently appeared in a CNBC Crypto video interview, explaining why he isn't entirely sold on Bitcoin anymore, and expresses his interest in Monero, stating:
"Monero is a really good one. Monero is an incredible currency, it's completely private."
There is a common belief that most of the money in cryptocurrency is still chasing the quick pump and dumps, however as the market matures, more money will flow into legitimate projects such as Monero. Monero's organic growth in price is evidence smart money is aware of Monero and gradually filtering in.
The Bitcoin Flaw
A relatively unknown blogger named CryptoIzzy posted three poignant pieces regarding Monero and its place in the world. The Bitcoin Flaw: Monero Rising provides an intellectual comparison of Monero to other cryptocurrencies, and Valuing Cryptocurrencies: An Approach outlines methods of valuing different coins.
CryptoIzzy's most recent blog published only yesterday titled Monero Valuation - Update and Refocus is a highly recommended read. It touches on why Monero is much more than just a coin for the Darknet Markets, and provides a calculated future price of Monero.
CryptoIzzy also published The Power of Money: A Case for Bitcoin, which is an exploration of our monetary system, and the impact decentralised cryptocurrencies such as Bitcoin and Monero will have on the world. In the epilogue the author also provides a positive and detailed future valuation based on empirical evidence. CryptoIzzy predicts Monero to easily progress well into the four figure range.
Monero Has a Relatively Small Marketcap
Recently we have witnessed many newcomers to cryptocurrency neglecting to take into account coins' marketcap and circulating supply, blindly throwing money at coins under $5 with inflated marketcaps and large circulating supplies, and then believing it's possible for them to reach $100 because someone posted about it on Facebook or Reddit.
Compared to other cryptocurrencies, Monero still has a low marketcap, which means there is great potential for the price to multiply. At the time of writing, according to CoinMarketCap, Monero's marketcap is only a little over $5 billion, with a circulating supply of 15.6 million Monero, at a price of $322 per coin.
For this reason, I would argue that this is evidence Monero is grossly undervalued. Just a few billion dollars of new money invested in Monero can cause significant price increases. Monero's marketcap only needs to increase to ~$16 billion and the price will triple to over $1000. If Monero's marketcap simply reached ~$35 billion (just over half of Ripple's $55 billion marketcap), Monero's price will increase 600% to over $2000 per coin.
Another way of looking at this is Monero's marketcap only requires ~$30 billion of new investor money to see the price per Monero reach $2000, while for Ethereum to reach $2000, Ethereum's marketcap requires a whopping ~$100 billion of new investor money.
Technical Analysis
There are numerous Monero technical analysts, however none more eerily on point than the crowd-pleasing Ero23. Ero23's charts and analysis can be found on Trading View. Ero23 gained notoriety for his long-term Bitcoin bull chart published in February, which is still in play today. Head over to his Trading View page to see his chart: Monero's dwindling supply. $10k in 2019 scenario, in which Ero23 predicts Monero to reach $10,000 in 2019. There is also this chart which appears to be freakishly accurate and is tracking along perfectly today.
Coinbase Rumours
Over the past 12 months there have been ongoing rumours that Monero will be one of the next cryptocurrencies to be added to Coinbase. In January 2017, Monero Core team member Riccardo 'Fluffypony' Spagni presented a talk at Coinbase HQ. In addition, in November 2017 GDAX announced the GDAX Digit Asset Framework outlining specific parameters cryptocurrencies must meet in order to be added to the exchange. There is speculation that when Monero has numerous mobile and hardware wallets available, and multisig is working, then it will be added. This would enable public accessibility to Monero to increase dramatically as Coinbase had in excess of 13 million users as of December, and is only going to grow as demand for cryptocurrencies increases. Many users argue that due to KYC/AML regulations, Coinbase will never be able to add Monero, however the Kraken exchange already operates in the US and has XMfiat pairs, so this is unlikely to be the reason Coinbase is yet to implement XMfiat trading.
Monero Is Not an ICO Scam
It is likely most of the ICOs which newcomers invest in, hoping to get rich quick, won't even be in the Top 100 cryptocurrencies next year. A large portion are most likely to be pumps and dumps, and we have already seen numerous instances of ICO exit scams. Once an ICO raises millions of dollars, the developers or CEO of the company have little incentive to bother rolling out their product or service when they can just cash out and leave. The majority of people who create a company to provide a service or product, do so in order to generate wealth. Unless these developers and CEOs are committed and believed in their product or service, it's likely that the funds raised during the ICO will far exceed any revenue generated from real world use cases.
Monero is a Working Currency, Today
Monero is a working currency, here today.
The majority of so called cryptocurrencies that exist today are not true currencies, and do not aim to be. They are a token of exchange. They are like a share in a start-up company hoping to use blockchain technology to succeed in business. A crypto-assest is a more accurate name for coins such as Ethereum, Neo, Cardano, Vechain, etc.
Monero isn't just a vaporware ICO token that promises to provide a blockchain service in the future. It is not a platform for apps. It is not a pump and dump coin.
Monero is the only coin with all the necessary properties to be called true money.
Monero is private internet money.
Some even describe Monero as an online Swiss Bank Account or Bitcoin 2.0, and it is here to continue on from Bitcoin's legacy.
Monero is alleviating the public from the grips of banks, and protests the monetary system forced upon us.
Monero only achieved this because it is the heart and soul, and blood, sweat, and tears of the contributors to this project. Monero supporters are passionate, and Monero has gotten to where it is today thanks to its contributors and users.

///Key Issues for Monero to Overcome///

Scalability
While Bulletproofs are soon to be implemented in order to improve Monero's transaction sizes and fees, scalability is an issue for Monero that is continuously being assessed by Monero's researchers and developers to find the most appropriate solution. Ricardo 'Fluffypony' Spagni recently appeared on CNBC's Crypto Trader, and when asked whether Monero is scalable as it stands today, Spagni stated that presently, Monero's on-chain scaling is horrible and transactions are larger than Bitcoin's (because of Monero's privacy features), so side-chain scaling may be more efficient. Spagni elaborated that the Monero team is, and will always be, looking for solutions to an array of different on-chain and off-chain scaling options, such as developing a Mimblewimble side-chain, exploring the possibility of Lightning Network so atomic swaps can be performed, and Tumblebit.
In a post on the Monero subreddit from roughly a month ago, monero moderator u/dEBRUYNE_1 supports Spagni's statements. dEBRUYNE_1 clarifies the issue of scalability:
"In Bitcoin, the main chain is constrained and fees are ludicrous. This results in users being pushed to second layer stuff (e.g. sidechains, lightning network). Users do not have optionality in Bitcoin. In Monero, the goal is to make the main-chain accessible to everyone by keeping fees reasonable. We want users to have optionality, i.e., let them choose whether they'd like to use the main chain or second layer stuff. We don't want to take that optionality away from them."
When the Spagni CNBC video was recently linked to the Monero subreddit, it was met with lengthy debate and discussion from both users and developers. u/ferretinjapan summarised the issue explaining:
"Monero has all the mechanisms it needs to find the balance between transaction load, and offsetting the costs of miner infrastructure/profits, while making sure the network is useful for users. But like the interviewer said, the question is directed at "right now", and Fluffys right to a certain extent, Monero's transactions are huge, and compromises in blockchain security will help facilitate less burdensome transactional activity in the future. But to compare Monero to Bitcoin's transaction sizes is somewhat silly as Bitcoin is nowhere near as useful as monero, and utility will facilitate infrastructure building that may eventually utterly dwarf Bitcoin. And to equate scaling based on a node being run on a desktop being the only option for what classifies as "scalable" is also an incredibly narrow interpretation of the network being able to scale, or not. Given the extremely narrow definition of scaling people love to (incorrectly) use, I consider that a pretty crap question to put to Fluffy in the first place, but... ¯_(ツ)_/¯"
u/xmrusher also contributed to the discussion, comparing Bitcoin to Monero using this analogous description:
"While John is much heavier than Henry, he's still able to run faster, because, unlike Henry, he didn't chop off his own legs just so the local wheelchair manufacturer can make money. While Morono has much larger transactions then Bitcoin, it still scales better, because, unlike Bitcoin, it hasn't limited itself to a cripplingly tiny blocksize just to allow Blockstream to make money."
Setting up a wallet can still be time consuming
It's time consuming and can be somewhat difficult for new cryptocurrency users to set up their own wallet using the GUI wallet or the Command Line Wallet. In order to strengthen and further decentralize the Monero network, users are encouraged to run a full node for their wallet, however this can be an issue because it can take up to 24-48 hours for some users depending on their hard-drive and internet speeds. To mitigate this issue, users can run a remote node, meaning they can remotely connect their wallet to another node in order to perform transactions, and in the meantime continue to sync the daemon so in the future they can then use their own node.
For users that do run into wallet setup issues, or any other problems for that matter, there is an extremely helpful troubleshooting thread on the Monero subreddit which can be found here. And not only that, unlike some other cryptocurrency subreddits, if you ask a question, there is always a friendly community member who will happily assist you. Monero.how is a fantastic resource too!
Despite still being difficult to use, the user-base and price may increase dramatically once it is easier to use. In addition, others believe that when hardware wallets are available more users will shift to Monero.

///Conclusion///

I actually still feel a little shameful for promoting Monero here, but feel a sense of duty to do so.
Monero is transitioning into an unstoppable altruistic beast. This year offers the implementation of many great developments, accompanied by the likelihood of a dramatic increase in price.
I request you discuss this post, point out any errors I have made, or any information I may have neglected to include. Also, if you believe in the Monero project, I encourage you to join your local Facebook or Reddit cryptocurrency group and spread the word of Monero. You could even link this post there to bring awareness to new cryptocurrency users and investors.
I will leave you with an old on-going joke within the Monero community - Don't buy Monero - unless you have a use case for it of course :-) Just think to yourself though - Do I have a use case for Monero in our unpredictable Huxleyan society? Hint: The answer is ?
Edit: Added in the Tail Emission section, and noted Dan Bilzerian as a Monero investor. Also added information regarding the XMR.TO payment service. Added info about hardfork
submitted by johnfoss69 to CryptoCurrency [link] [comments]

Intro to API Documentation - YouTube Steve Shadders on the Definition of Consensus Rules for Bitcoin Intro to API Documentation - YouTube BTCPay Server - Interface Walkthrough Abucoins: An exchange with an excellent API and documentation

This page describes the behavior of the reference client.The Bitcoin protocol is specified by the behavior of the reference client, not by this page. In particular, while this page is quite complete in describing the network protocol, it does not attempt to list all of the rules for block or transaction validity.. Type names used in this documentation are from the C99 standard. The output sets the conditions to release this bitcoin amount later. The sum of the output values of the first transaction is the value of the mined bitcoins for the block plus possible transactions fees of the other transactions in the block. See Also. Script; Protocol rules - "tx" messages; Protocol documentation - Transaction Verification Rest API Explore the REST API documentation for detailed examples of the various functionality offered, such as receiving real-time market data, requesting balance information, and performing trades. Introduction¶. The Developer Reference aims to provide technical details and API information to help you start building Bitcoin-based applications, but it is not a specification.To make the best use of this documentation, you may want to install the current version of Bitcoin Core, either from source or from a pre-compiled executable.. Questions about Bitcoin development are best asked in one ... On the Main tab, click Start Bitcoin on system login. Click the Ok button to save the new settings. The next time you login to your desktop, Bitcoin Core GUI should be automatically started as an icon in the tray. If Bitcoin Core GUI does not automatically start, you may need to add it to an .xinit or .xsession file as described here.

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Intro to API Documentation - YouTube

Thanks for watching! For donations: Bitcoin - 1CpGMM8Ag8gNYL3FffusVqEBUvHyYenTP8 Optimizing API Documentation: An Empirical Test of Some Guidelines and Heuristics Michael Meng, Stephanie Steinhardt, and Andreas Schubert ----- The g... I gave this presentation to the STC Silicon Valley chapter on Nov 2017. It covers the first 3 sections of my API documentation course: http://idratherbewriti... In this webinar, we will look at the role of the OpenAPI Specification in documenting APIs, and how teams can leverage tools like Swagger UI and SwaggerHub t... Recording of "Intro to API Documentation" presentation that I gave at the STC Summit 2019. More details: https://idratherbewriting.com/my-slide-links-times-s...

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