bitcoin-testnet-box/README.md at master · freewil/bitcoin ...

Aeon

Aeon (AEON) is a private, secure, untraceable currency. You are your bank, you control your funds, and nobody can trace your transfers.
[link]

Will Testnet Lightning Nodes be Automatically Ported to Mainnet? /r/Bitcoin

Will Testnet Lightning Nodes be Automatically Ported to Mainnet? /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

Gridcoin 5.0.0.0-Mandatory "Fern" Release

https://github.com/gridcoin-community/Gridcoin-Research/releases/tag/5.0.0.0
Finally! After over ten months of development and testing, "Fern" has arrived! This is a whopper. 240 pull requests merged. Essentially a complete rewrite that was started with the scraper (the "neural net" rewrite) in "Denise" has now been completed. Practically the ENTIRE Gridcoin specific codebase resting on top of the vanilla Bitcoin/Peercoin/Blackcoin vanilla PoS code has been rewritten. This removes the team requirement at last (see below), although there are many other important improvements besides that.
Fern was a monumental undertaking. We had to encode all of the old rules active for the v10 block protocol in new code and ensure that the new code was 100% compatible. This had to be done in such a way as to clear out all of the old spaghetti and ring-fence it with tightly controlled class implementations. We then wrote an entirely new, simplified ruleset for research rewards and reengineered contracts (which includes beacon management, polls, and voting) using properly classed code. The fundamentals of Gridcoin with this release are now on a very sound and maintainable footing, and the developers believe the codebase as updated here will serve as the fundamental basis for Gridcoin's future roadmap.
We have been testing this for MONTHS on testnet in various stages. The v10 (legacy) compatibility code has been running on testnet continuously as it was developed to ensure compatibility with existing nodes. During the last few months, we have done two private testnet forks and then the full public testnet testing for v11 code (the new protocol which is what Fern implements). The developers have also been running non-staking "sentinel" nodes on mainnet with this code to verify that the consensus rules are problem-free for the legacy compatibility code on the broader mainnet. We believe this amount of testing is going to result in a smooth rollout.
Given the amount of changes in Fern, I am presenting TWO changelogs below. One is high level, which summarizes the most significant changes in the protocol. The second changelog is the detailed one in the usual format, and gives you an inkling of the size of this release.

Highlights

Protocol

Note that the protocol changes will not become active until we cross the hard-fork transition height to v11, which has been set at 2053000. Given current average block spacing, this should happen around October 4, about one month from now.
Note that to get all of the beacons in the network on the new protocol, we are requiring ALL beacons to be validated. A two week (14 day) grace period is provided by the code, starting at the time of the transition height, for people currently holding a beacon to validate the beacon and prevent it from expiring. That means that EVERY CRUNCHER must advertise and validate their beacon AFTER the v11 transition (around Oct 4th) and BEFORE October 18th (or more precisely, 14 days from the actual date of the v11 transition). If you do not advertise and validate your beacon by this time, your beacon will expire and you will stop earning research rewards until you advertise and validate a new beacon. This process has been made much easier by a brand new beacon "wizard" that helps manage beacon advertisements and renewals. Once a beacon has been validated and is a v11 protocol beacon, the normal 180 day expiration rules apply. Note, however, that the 180 day expiration on research rewards has been removed with the Fern update. This means that while your beacon might expire after 180 days, your earned research rewards will be retained and can be claimed by advertising a beacon with the same CPID and going through the validation process again. In other words, you do not lose any earned research rewards if you do not stake a block within 180 days and keep your beacon up-to-date.
The transition height is also when the team requirement will be relaxed for the network.

GUI

Besides the beacon wizard, there are a number of improvements to the GUI, including new UI transaction types (and icons) for staking the superblock, sidestake sends, beacon advertisement, voting, poll creation, and transactions with a message. The main screen has been revamped with a better summary section, and better status icons. Several changes under the hood have improved GUI performance. And finally, the diagnostics have been revamped.

Blockchain

The wallet sync speed has been DRASTICALLY improved. A decent machine with a good network connection should be able to sync the entire mainnet blockchain in less than 4 hours. A fast machine with a really fast network connection and a good SSD can do it in about 2.5 hours. One of our goals was to reduce or eliminate the reliance on snapshots for mainnet, and I think we have accomplished that goal with the new sync speed. We have also streamlined the in-memory structures for the blockchain which shaves some memory use.
There are so many goodies here it is hard to summarize them all.
I would like to thank all of the contributors to this release, but especially thank @cyrossignol, whose incredible contributions formed the backbone of this release. I would also like to pay special thanks to @barton2526, @caraka, and @Quezacoatl1, who tirelessly helped during the testing and polishing phase on testnet with testing and repeated builds for all architectures.
The developers are proud to present this release to the community and we believe this represents the starting point for a true renaissance for Gridcoin!

Summary Changelog

Accrual

Changed

Most significantly, nodes calculate research rewards directly from the magnitudes in EACH superblock between stakes instead of using a two- or three- point average based on a CPID's current magnitude and the magnitude for the CPID when it last staked. For those long-timers in the community, this has been referred to as "Superblock Windows," and was first done in proof-of-concept form by @denravonska.

Removed

Beacons

Added

Changed

Removed

Unaltered

As a reminder:

Superblocks

Added

Changed

Removed

Voting

Added

Changed

Removed

Detailed Changelog

[5.0.0.0] 2020-09-03, mandatory, "Fern"

Added

Changed

Removed

Fixed

submitted by jamescowens to gridcoin [link] [comments]

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]

A simple game of node tag to increase your incoming connection count.

Become one of the 1% of "listening" (aka "super") nodes.
Recently played with setting up an onion node and found for the first day or so it was difficult to get incoming connections via tor. If anyone wants to increase their incoming connection count, just DM me your network and node info and I'll addnode you. If you don't care about association, you can just reply with your node info on thread.
```

Format

:

Examples

mainnet 88.99.167.175:8333 mainnet [2a01:4f8:10a:37ee::2]:8333 mainnet pymhrtleulgjtjpv.onion:8333 testnet 88.99.167.175:18333 ```
If you want to do the same, just ask for node info on this thread or ask for DMs as well. To add named nodes at startup, add the following to your bitcoin.conf. These are just random public nodes, obviously add your own nodes in your conf file.
```

Mainnet nodes in the 'main' section

[main]

https://bitnodes.io/

addnode=88.99.167.175:8333 addnode=[2a01:4f8:10a:37ee::2]:8333

random node

pymhrtleulgjtjpv.onion:8333

Testnet nodes in the 'test' section

[test]

https://bitnodes.io/

addnode=88.99.167.175:18333

random node

addnode=3v6wv6ibu4r6hn6p.onion:18333 ```
* - Reserve the right to filter based on reddit karma
submitted by brianddk to Bitcoin [link] [comments]

Weekly Wrap: This Week In Chainlink August 31 - September 6

Weekly Wrap: This Week In Chainlink August 31 - September 6

Chainlink Hackathon - September 7th - 27th!

We've already received over 300 developer signups from over 40 countries for the Chainlink Hackathon. Get ready to join one of the biggest blockchain developer events of the year and build the next top DeFi dApp with support from our world-class mentors and a chance to win over $40K prizes.

Announcements and Integrations 🎉

@synthetix_io is now fully #PoweredByChainlink, switching all its cryptocurrency and index synths to Chainlink's Price Reference Data due to its high-quality data, decentralization, & ability to scale the platform to secure more value.

Bitcoin smart contract platform @RSKsmart has successfully integrated Chainlink oracles via its @rif_os technology. This allows RSK developers to build smart contract applications connected to real-world data that are secured by the Bitcoin blockchain.

@01node is a new node operator supporting Chainlink's live Price Reference Contracts. As operators experienced in securing millions of USD for PoS chains, they bring added decentralization by running their own physical servers that further minimize cloud dependencies.

Decentralized lending protocol @useteller is live on testnet consuming Chainlink's Price Reference Data for ETH/USD, BTC/USD & LINK/USD. These price feeds help Teller ensure that all APR calculations for unsecured loans reflect real market conditions.

Telecommunications blockchain @QLCchain is integrating Chainlink to make its aggregated data available to smart contracts. This data can power new DeFi applications like automating payments between telco providers, tokenizing telco infrastructure & more.

Social reputation score provider @DecentrNet is integrating Chainlink to allow users to share their data in #DeFi dApps to obtain better interest & collateralization rates. Chainlink also helps Decentr make this key data available across any blockchain.

@opium_network is using Chainlink's USDT/USD Price Reference Data live on mainnet to launch the first credit default swap on a centralized stablecoin—USDT. This is another example of how Chainlink oracles are powering innovative DeFi products.

Blockchain card game @EtherLegends will use Chainlink VRF to power their random distribution of NFT-backed end-of-season rewards. These rare items will be awarded to top players at the end of the ongoing season with verifiable proof of fair distribution.

We’re thrilled to award a grant to @ensdomains from the Chainlink Community Grant Program: https://blog.chain.link/introducing-the-chainlink-community-grant-program/…, supporting them in developing human-readable names for oracle contracts, making Chainlink easily accessible to even more smart contract devs

Featured Videos & Educational Pieces 🎥

DeFi is disrupting finance and crypto by moving beyond tokens and wallets into sophisticated smart contract applications that allow p2p lending, liquidity mining, synthetic assets, derivatives, and more. DeFi pioneers Sergey Nazarov (Chainlink), Andre Cronje (yEarn), Stani Kulechoiv (Aave), and Kain Warwick (Synthetix) come together to explain DeFi’s remarkable growth on Ethereum, expansion into new markets, and the impact of live infrastructure, especially decentralized oracles, on DeFi protocols.

Chainlink Labs Chief Scientist Dr. Ari Jules gives a #SmartCon Keynote explaining how DECO helps Chainlink oracles liberate more web data for smart contracts, including identity records, financial data, accredited investor confirmation, supply chain logistics, and more. Using DECO to make this data available on-chain allows blockchains to enhance many enterprise use cases today while still retaining the key property of data confidentiality.

Chainlink-powered decentralized oracles provide smart contracts with definitive truth about the validity of real-world data. In this Keynote, Sergey Nazarov explains how Chainlink is using its secure and reliable oracles to expand the addressable market of smart contract applications into the trillions, thanks to opening up blockchain applications in DeFi, CeFi, Fintech, Web 2.0, and enterprise systems. He also discusses Chainlink’s new DECO acquisition and how it opens up access to web data for smart contracts while preserving data security and confidentiality.

Other SmartCon talks now posted include:

Ecosystem & Community Celebrations 👏


Upcoming Events 📅


Are you interested in hosting your own meetup? Apply to become a Chainlink Community Advocate today: https://events.chain.link/advocate

Chainlink Labs is hiring to build Chainlink’s network: Check out these open roles 👩‍💼

View all open roles at https://careers.smartcontract.com
Are there other community content and celebrations that we missed? Post them in the comments below! ⤵️
submitted by linkedkeenan to Chainlink [link] [comments]

Upcoming Major Riecoin 0.20 Upgrade

Upcoming Major Riecoin 0.20 Upgrade
A new major Riecoin upgrade is planned, and includes a hard fork. Below is a summary of the changes so far and the hard fork improvements. More details can be found on BitcoinTalk. Feel free to ask Pttn there or on Discord if you have questions regarding the update.
The first step of this upgrade was to update the base code to Bitcoin’s 0.20, which is done. You can find the experimental code at the Github repository. Experimental binaries can also be downloaded here. Despite their prerelease status, they should work fine, though please backup your wallets if you plan to use 0.20, just in case.
Pool operators and other advanced Riecoin users should start looking into the changes and update their software accordingly, as well as closely follow the Riecoin Core development.
Here is a list of notable changes from 0.16.3.1.
The next step will be the hard fork, in order to improve Riecoin in multiple ways. Here is the list of planned changes.
Once the development is advanced enough, a date will be chosen for the hard fork. Testnet will be hardforked first to ensure the well functioning of the implementation. Stay tuned!
submitted by PttnMe to RieCoin [link] [comments]

Air-gapped z-addresses; Is ZecWallet an option?

I've heard of Zcash for a while, but it wasn't until recently that I tried my hand playing around with the daemon and wallets.
Obviously, there's no point in using ZEC if you're only using t-addresses, but my desire for a z-address capable wallet certainly narrows the choice of wallets available to me.
Running a full node is no problem for me; I'd like to take advantage of a GUI if possible though. For that reason, I am drawn to ZecWallet's full node version. But I'm still uneasy when it comes to key security. (Can anyone share their experience with the ZecWallet paper wallet generator?)
From what I gather there is no wallet with HD support for t-addresses, is that right? Not much of a concern for me because I am interested in the shielded pool. I just figured t-addresses would support Electrum-style seeds but apparently not?
Sapling addresses seem to be exactly what I want; in particular I am drawn to their reusability and ability to export the view key. I was hoping this would ease the process of securing and backing up my private keys.
Here's my key handling protocol I use for Monero:
1) Generate the wallet on an air-gapped machine
2) This gives you a mnemonic seed. I write that down and keep it as an analog backup. By using a passphrase in conjunction with the seed, I can effectively encrypt this paper wallet easily.
3) Export the private view key and address to an online machine and make a watch-only wallet. This lets my watching wallet see incoming transactions
4) When outputs are received, I have to export the list of outputs to the air-gapped machine. The air-gapped machine uses this data to make signed key images.
5) I export the key images back to the watching wallet. At this point, the watching wallet can see outgoing transactions.
6) Now I can create unsigned transactions with the watching wallet, sign them in the air-gapped machine, and transmit them via the watching wallet using my full node.
The major benefit of using Monero in this way is that I only have to make a human-readable backup of my wallet once and I'm set for life.
Obviously, Zcash is going to be a little bit different. Since the core client doesn't give us mnemonic seed phrases, that complicates backup a little bit. What's the best way to back up ZEC? If I keep an up-to-date backup of my wallet.dat is that all I need? Is there an option in the wallet to encrypt this backup as well, or do I need to accomplish that externally with the likes of Veracrypt? I must admit the idea of unencrypted wallet data being written to my disk makes me uneasy.
I see that there is an option in zcash-cli to import/export the view key of Sapling addresses. However, I can't see the option to do so in ZecWallet, and when I do so manually via the CLI nothing seems to be reflected in ZecWallet.
Is ZecWallet by its very nature an obligatory hot wallet, or am I missing some functionality in the wallet?
My end goal is to run a ZEC full node on Qubes and hold my coins in z-addresses. Qubes allows me to make virtually air-gapped VMs to greatly simplify key management.
So for example when I use Bitcoin, I have a networked VM that runs a Bitcoind + Electrum Personal Server + Electrum Wallet stack, where I import my master public key. When I need to sign a transaction, I spin up a networkless VM equipped with Electrum and my private keys. Qrexec let's me easily ferry unsigned/signed transactions back and forth between the two VMs. Overall this provides a decent UX with above-average security and privacy. I'd like to port this general setup to Zcash.
To do so, I need a GUI wallet that supports both z-addresses and public/private key splitting. Does such a tool exist? (Can Electrum Personal Server be ported to ZEC?) If not, how can I streamline this process with the CLI?
I'm more familiar with Monero than Bitcoin, so the Zcash/Bitcoin CLIs are still a little foreign to me, though I am not "afraid" of CLI wallets in general. My Cryptonote muscle memory makes me prone to annoying little syntax errors I'd much rather do without.
My plan is to buy ZEC from Coinbase Pro, withdraw to a t-address, and then sweep my coins to a z-address. I want to monitor the balance of both t-addresses and z-addresses (and later send transactions) without ever exposing my private keys to the Internet.
However, it seems like the Zcash CLI is my only viable option for z-address watching wallets. Should I just play around on testnet until I get more familiar, or is there a GUI wallet solution out there that fits my needs? Does anyone have a cheat sheet for doing this via the CLI that could help me along the learning curve?
TL;DR New to Zcash, need advice as it relates to wallet backup, watching wallets, and z-addresses.
Assistance is much appreciated!
Edit: I don't suppose there's a way to use a Trezor Model T with a full node and or z-addresses?
submitted by spirtdica to zec [link] [comments]

Having Trouble with Regtest Running Inside a Docker Container

Hello everyone. First of all, thanks in advance for any help.
I'm running a BTCPay server using BTCPay server docker. If I understand it correctly, it exposes the regtest Bitcoin core through a Tor network.
I followed the instructions on the [BTCPay Server docs to Connect Wasabi to BTCPay Server Full Node. Unfortunately, after following these instructions, the bottom-left corner of Wasabi Wallet still reads "Connecting...".
My logs.txt reveals:
2020-03-29 20:34:51 INFO Program (44) Wasabi GUI started (14879af3-85dd-42aa-9d41-674d87a5dd77). 2020-03-29 20:34:52 INFO Global (164) Config is successfully initialized. 2020-03-29 20:34:52 INFO TransactionStore (28) ConfirmedStore.InitializeAsync finished in 4 milliseconds. 2020-03-29 20:34:52 INFO TransactionStore (28) MempoolStore.InitializeAsync finished in 12 milliseconds. 2020-03-29 20:34:52 INFO Global (401) Fake AddressManager is initialized on the RegTest. 2020-03-29 20:34:52 INFO AllTransactionStore (27) InitializeAsync finished in 16 milliseconds. 2020-03-29 20:34:52 INFO IndexStore (43) InitializeAsync finished in 40 milliseconds. 2020-03-29 20:34:52 INFO BitcoinStore (39) InitializeAsync finished in 43 milliseconds. 2020-03-29 20:34:52 INFO TorProcessManager (249) Starting Tor monitor... 2020-03-29 20:34:52 INFO Global (230) TorProcessManager is initialized. 2020-03-29 20:34:52 INFO HostedServices (49) Started Software Update Checker. 2020-03-29 20:34:52 INFO TorProcessManager (66) Tor is already running. 2020-03-29 20:34:53 ERROR Global (328) System.Net.Internals.SocketExceptionFactory+ExtendedSocketException (61): Connection refused [::ffff:127.0.0.1]:18444 at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw(Exception source) at System.Net.Sockets.Socket.EndConnect(IAsyncResult asyncResult) at NBitcoin.Protocol.Connectors.SocketExtensions.<>c.b__0_0(IAsyncResult iar) --- End of stack trace from previous location where exception was thrown --- at NBitcoin.Extensions.WithCancellation[T](Task`1 task, CancellationToken cancellationToken) at NBitcoin.Protocol.Connectors.DefaultEndpointConnector.ConnectSocket(Socket socket, EndPoint endpoint, NodeConnectionParameters nodeConnectionParameters, CancellationToken cancellationToken) at NBitcoin.Protocol.Node.ConnectAsync(Network network, EndPoint endpoint, NetworkAddress peer, NodeConnectionParameters parameters) at WalletWasabi.Gui.Global.InitializeNoWalletAsync() 2020-03-29 20:34:53 INFO Global (349) Start connecting to nodes... 2020-03-29 20:34:53 INFO Global (373) Start synchronizing filters... 2020-03-29 20:34:53 INFO MainWindow.xaml (74) UiConfig is successfully initialized. 2020-03-29 20:34:57 ERROR PeriodicRunner (72) System.NotSupportedException: Invalid StatusLine: ?. - System.IndexOutOfRangeException: Index was outside the bounds of the array. at WalletWasabi.Http.Models.StatusLine.Parse(String statusLineString) --- End of inner exception stack trace --- at WalletWasabi.Http.Models.StatusLine.Parse(String statusLineString) at System.Net.Http.HttpResponseMessageExtensions.CreateNewAsync(Stream responseStream, HttpMethod requestMethod) at WalletWasabi.TorSocks5.TorHttpClient.SendAsync(HttpRequestMessage request, CancellationToken cancel) at WalletWasabi.TorSocks5.TorHttpClient.SendAsync(HttpMethod method, String relativeUri, HttpContent content, CancellationToken cancel) at TorHttpClientExtensions.SendAndRetryAsync(ITorHttpClient client, HttpMethod method, HttpStatusCode expectedCode, String relativeUri, Int32 retry, HttpContent content, CancellationToken cancel) at WalletWasabi.WebClients.Wasabi.WasabiClient.GetVersionsAsync(CancellationToken cancel) at WalletWasabi.WebClients.Wasabi.WasabiClient.CheckUpdatesAsync(CancellationToken cancel) at WalletWasabi.Services.UpdateChecker.ActionAsync(CancellationToken cancel) at WalletWasabi.Bases.PeriodicRunner.ExecuteAsync(CancellationToken stoppingToken) 2020-03-29 20:35:01 ERROR WasabiSynchronizer (305) System.NotSupportedException: Invalid StatusLine: ?. - System.IndexOutOfRangeException: Index was outside the bounds of the array. at WalletWasabi.Http.Models.StatusLine.Parse(String statusLineString) --- End of inner exception stack trace --- at WalletWasabi.Http.Models.StatusLine.Parse(String statusLineString) at System.Net.Http.HttpResponseMessageExtensions.CreateNewAsync(Stream responseStream, HttpMethod requestMethod) at WalletWasabi.TorSocks5.TorHttpClient.SendAsync(HttpRequestMessage request, CancellationToken cancel) at WalletWasabi.TorSocks5.TorHttpClient.SendAsync(HttpMethod method, String relativeUri, HttpContent content, CancellationToken cancel) at TorHttpClientExtensions.SendAndRetryAsync(ITorHttpClient client, HttpMethod method, HttpStatusCode expectedCode, String relativeUri, Int32 retry, HttpContent content, CancellationToken cancel) at WalletWasabi.WebClients.Wasabi.WasabiClient.GetSynchronizeAsync(uint256 bestKnownBlockHash, Int32 count, Nullable`1 estimateMode, CancellationToken cancel) at System.Threading.Tasks.TaskExtensions.WithAwaitCancellationAsync[T](Task`1 me, CancellationToken cancel, Int32 waitForGracefulTerminationMilliseconds) at WalletWasabi.Services.WasabiSynchronizer.<>c__DisplayClass60_0.<b__0>d.MoveNext()
while my config.json is:
json { "Network": "RegTest", "MainNetBackendUriV3": "http://wasabiukrxmkdgve5kynjztuovbg43uxcbcxn6y2okcrsg7gb6jdmbad.onion/", "TestNetBackendUriV3": "http://testwnp3fugjln6vh5vpj7mvq3lkqqwjj3c2aafyu7laxz42kgwh2rad.onion/", "MainNetFallbackBackendUri": "https://wasabiwallet.io/", "TestNetFallbackBackendUri": "https://wasabiwallet.co/", "RegTestBackendUriV3": "http://oqaqivyaxctrp2gix5id4bbd7mav2xt5n4fzqsnwtrhtsmgjhg7sneqd.onion:8333/", "UseTor": true, "StartLocalBitcoinCoreOnStartup": false, "StopLocalBitcoinCoreOnShutdown": true, "LocalBitcoinCoreDataDir": "/Users/my-name-here/Library/Application Support/Bitcoin", "TorSocks5EndPoint": "127.0.0.1:9050", "MainNetBitcoinP2pEndPoint": "127.0.0.1:8333", "TestNetBitcoinP2pEndPoint": "127.0.0.1:18333", "RegTestBitcoinP2pEndPoint": "127.0.0.1:8333", "MixUntilAnonymitySet": 50, "PrivacyLevelSome": 2, "PrivacyLevelFine": 21, "PrivacyLevelStrong": 50, "DustThreshold": "0.00005" }
The environment in which bitcoind runs is here: https://gist.github.com/AryanJ-NYC/78c770f3e918d06e62301f1ebc6fba31 (I would copy and paste but quite long).
I'm 98% sure the error lies in this line of the log: 2020-03-29 20:34:53 ERROR Global (328) System.Net.Internals.SocketExceptionFactory+ExtendedSocketException (61): Connection refused [::ffff:127.0.0.1]:18444. However, I haven't a clue what port regtest normally runs on.
FWIW, main and testnet connect just fine (both nodes also running on my local machine).
submitted by TheWebDevCoach to WasabiWallet [link] [comments]

Recap of Chromia AMA with the CEO of Chromia, @henrik_hjelte on BithumbGlobal telegram community dated 14.04.2020.

The AMA was moderated by u/Sidonpee.
Sidonpee
Let’s start with the introduction question:
u/henrik_hjelte Can you introduce yourself to the community? What is your background?
Henrik Hjelte
I’m the CEO of ChromaWay, the company that started the Chromia project. My background is 30+ years as a developer (got payed first when I was 15), then studied Business and other things (politics and philosophy). Worked as Finance and IT consultant. THen wanted to be an entrepreneur. started a “web 2.0” startup about a free-speech internet. Hired our current CTO as a developer. THen joined his colored-coins project, the first token protocol ie the start of blockchain in 2012.
Sorry. I’m now 50 years old, the math didn’t add up. That is why I’m the CEO and not CFO.
Sidonpee
Q1. What is Chromia? Can you tell us the technology behind it and the features that makes it unique?
Henrik Hjelte
Chromia is a new public blockchain based on the idea of integrating traditional databases, “Relational databases” with blockchain security. In the normal world outside blockchain, there is one technology that is in 100% of all enterprises and powers almost all webpages. It build Facebook, SAP, banks, blogging platforms. It is the relational database, or SQL database. Has been used for 30+ years and is still dominant with 85% market share. Why are people using it (NoSQL has been around for 15+ years)?
Because it is the best way of managing data known to mankind. Now what is blockchani? It is a way to manage data that is shared. So if you agree that blockchain is about managing data, a relational database should be an obvious technology. Chromia is a general purpose blockchain with full smart contract capabilities, just that it is a lot easier to code, even complex applications. You code with an easy to learn new programming language that combines the power of SQL and “normal languages” but makes it secure in a blockchain context. Up to 1/10 the code-lines vs other blockchains.
Sidonpee
Q2. I often see Chromia and ChromaWay being used interchangeably, what is the relationship between the two?
Henrik Hjelte
The idea for Chromia and parts of the codebase originated from the company ChromaWay. It is actually one of the first blockchain companies, we had a project for tokens before ethereum called the “colored coins” project that led to us starting a company with a name take from the greek word for color. In 2015 we did what is now called stable-coin, EURO payments based on tokens on a public blockchain (tokens on bitcoin). It was for a bank LHV in Estonia. When we need to quickly find information, we could not search the blockchain and instead started to dump everything to a relational database, and then the idea started to grow to build a blockchain around this. So we did a private blockchain, intended for usecases in land-registration, banking and more. And then came up with the idea of doing a public blockchain for it.
ChromaWay is the company that ideated Chromia and provided the first open source code for it. The Chromia pre-sale of tokens is now funding the development of Chromia, which is done by ChromaWay. When Chromia is released as a decentralized network, it will not be governed or run by ChromaWay. Of course we know it has to be decentralized, we understand the virtues of decentralization since 2012 when our CTO did the worlds first code for tokens, then started an open-source project which even inspired Vitalik (who soon quit and did his own thing). ChromaWay as a company will take a role as providing optional support and maintenance of Chromia projects (open for competition by other players).
Sidonpee
Q3. What’s the usefulness of $CHR token in Chromia ecosystem?
Henrik Hjelte
CHR can be used to pay for running dapps (normally by the developer of the dapp, not users). It can also be used as a mean of exchange between dapps, and to provide collateral/stake for providers (the ones running the blockchain), incentivizing good behaviour.
Sidonpee
Q4. What are the major milestones Chromia has achieved so far & what are your plans for 2020?
Henrik Hjelte
We have released Rell, the new programming language that is needed, and supported tooling (online Development Environment, downloadable IDE, documentation). We have release the first testnet in december, and at the same time another company 4irelabs has done the first dapp running on testnet. They could take our old code (done as a private blockchain), learn our new language Rell and port it to Chromia. That project is the Green Assets Wallet, green bond environmental impact reporting, run by a non-profit and with banks and institutions as users.
Plans for 2020 is to both release a series of dApps to showcase how fantastic Chromia is, as well as continue to develop the platform. And when it is secure and good enough, we will release mainnet.
Dapps are now being made by us as well as others. We do a decentralized social network framework call chromunity, now release to testnet. If is really cool, users can vote over moderators, and in the future users might even govern the complete application, how it can be updated. This is a great showcase for Chromia and why we use the slogan Power to the Public.
Games coming are….
  1. Mines of Dalarnia (by Workinman Interactive). An action game in a mine with blockchain rental of plots and stuff.
  2. Krystopia 2, novas journey. A puzzle game done by Antler Interactive.
  3. An indie game (not done by us so I don’t know how much I shoiul;d menton), but: it is a strategy game with FULL-LOGIC ON BLOCKHCHAIN yes ubercool that is why it is in caps
  4. A secret demo-project that we do together with Antler to showcase the technical potential of Chromia platform.
More comin in 2020: Other dapps from other companies, one in impact-tech
Games is a great way to show scalability and features BTW.
I didn’t mention that Chromia is very scalable (everyone says that). But it is true, and with no tradeoff vs decentralization
well, but I can also see enterprise projects going into more of public blockchain direction and hybrid, and there I think Chromia can really shine
Sidonpee
Q5. Revenue and adoption are the main points of all projects, can you tell us your Business model and how you generate revenue?
Henrik Hjelte
Chromia itself is a public network with no intrinsic business model, but participants in the network has. For example Providers make money from supplying quality hardware running dapps and the core software, dapp developers have individual business models.
I already told about about ChromaWay/Chromia, but ChromaWay the company can provide support/maintenance and various services and add-ons for Chromia. It is very similar to how normal open-source vendors make money.
Still up to competition from others, and without control over the Chromia network. We need it to be independent, otherwise it has no value.
So it is sound business to have it decentralized as well, who would care otherwise?
Sidonpee
Q6. Regarding Chromia’s blockchain game (Minesofdalarnia), I’m quite sure that vast majority of game lovers would be anticipating for it release, could you please share with us the likely date it will be released?
Henrik Hjelte
Yes I can
We have made very good progress recently, and I can happily share that MoD is planned to be released now in Q2.
Anastasia
Meanwhile you can check the Mines of Dalarnia Social Media page for recent updates on the game https://twitter.com/Chromia_Studios . We publish development updates there often.
You can also sign-up for early access on https://www.minesofdalarnia.com 😉
Sidonpee
Q7. Recently Chromia welcome Malcolm Lerider who was formally a Senior R&D Manager for Neo Blockchain as its new team and family member. When he was with Neo, he worked together with the community and was able to build the project from a top 50-something market cap project to a top 5 market cap project. Should we be expecting a replica of this at Chromia in the nearest future?
Henrik Hjelte
Yes. we are very excited to have Malcolm on-board, he is very knowledgeable in the area, and his expertise will definitely help with achieving that. Malcolm recently published an article where he introduced himself as a new member of Chromia. You can read it over here, if you haven’t already: https://medium.com/@MalcolmLeridei-am-joining-team-chromia-b25d527b5b6f
Sidonpee
Q8. Green Asset Wallet is absolutely an amazing starter in the Chromia blockchain! I would like to hear how you guys see the future business development possibilities in the next /6/12 months? Are there specific business areas, geographical locations, which you want to focus on most?
Henrik Hjelte
Thank you, yes, it is nice to have a project that is enterprise, and green too as the first one.
We are working both to reach out but also support inbound requests for projects, I shared some above.
Sometimes with business development, ChromaWAy might find a customeprospect but we don’t know where it will end. We think however, and Gartner too, that enterprise blockchain is gradually looking more at public blockchain projects.
I think DeFI, tokenization of assets and things like that is interesting.
Also, hopefully someone will be inspired by our solution to a free, open, user-governed decentralized social web, what we are now showing with Chromunity. Jack Dorsey, are you listening?
We don’t have a particular geographical focus though, and really it is a generic platform use-case agnostic.
We use games to show potential and scalability, but who knows maybe other applications will be more. It is not only up to us.
Sidonpee
Q9. Who are Chromia’s strategic investors and partners? What criteria/ process do you follow in evaluating your partnership deal with them?
Henrik Hjelte
We have some strategic investors and partners that have helped us during the way, I think maybe I should not mention them here with the risk of forgetting some of them, and I have no time to check if we should mention them, We (and the partner) look at how we can help each other on a case by case basis. There is no simple scorecard that we can follow.
We try to avoid vanity partnership deals with no real meaning
Sidonpee
Q10. Why did Chromia develop a new language called Rell (Relational language) for dapp
programming?
Is the development of this new language really necessary?
If yes, what are some of its unique features that cannot be found in other existing languages/environments?
Henrik Hjelte
Yes it was necessary. We need the features of relational alegbra. It is is a mathematical basis, very similar to logic, that has only had basically one implementation (SQL). But SQL was not secure enough and lacked features that can be used in a shared context like a blockchain. Everything needs to be secure. Also we wanted to add blockchain features, and make it look more like “normal programming”. Now some of the readers might ask? Can’t you do this on the EVM? No. Ethereum does simply not have anything similar to a relational database, and it would be technically infeasible.
Some others may ask? How can you compete with the EVM /pet-project that have soo many developers etc…?
My answer is : we are building on top of a virtual machine called Postgresql. Check how much time, optimization and money has been spent on that virtual machine…
I think it is 20 years or more of development time, maybe more.
Static typing is one feature we add that SQL doesn’t have (you can detect bugs at compile time)
Yusuf
What have been the major obstacle Chromia has faced in the past years while developing its idea?
Whats the benefits for developers at Chromia? Why should we use Chromia instead of your competitors?
Henrik Hjelte
Obstacle: Technology/software developement is hard sometimes, difficult to predict when things are ready.
Major benefits for developers: A LOT EASIER to code COMPLEX applications. I’m serious. If you are frustrated with blockchain development, take a look at the ease of use of Rell/Chromia
LA LA
DeFi is projected to buzz up in 2020 and is on everybody lips, what ROLES does Chromia play in the innovativeness and future of DeFi and how does it spearhead adoption of DeFi using blockchain solution?
Henrik Hjelte
Finance would be almost unthinkable without relational databases, the power core banking and more. An exchange is a table of bid and ask, and you match them. This is very easy to do with our tech.
Sujit
If any Dapp is created on Chromia Blockchain! Then is there any Gas fees charged by Chromia? Whats the concept of fees for Dapps on Chromia Blockchain?
Henrik Hjelte
No gas per user fee. The application pays for hosting, like a cloud. Normally the developer, unless the developer hands over the governenace of the application to someone else (maybe the users).
Sujit
If any Dapp is created on Chromia Blockchain! Then are there any Gas fees charged by Chromia? Whats the concept of fees for Dapps on Chromia Blockchain?
Henrik Hjelte
No gas per user fee. The application pays for hosting, like a cloud. Normally the developer, unless the developer hands over the governenace of the application to someone else (maybe the users).
Mayowa
Most blockchain projects have donated to COVID-19, but no news from Chromia. How will you contribute to fight COVID-19?
Henrik Hjelte
I had to answr this: I spent my free weekend time on a covid-19 hackathon the other week to do a solution to share medical equipment across countries. It is on our facebook I think u/anastasiazudina maybe you can share
Anastasia
We want to do our part for the ongoing covid19 crisis. Therefore, we were participating in the critical initiative HackTheCrisis. During the virtual hackathon, we tried to find good solutions for the new unique challenges that we now as a society are facing. https://www.facebook.com/chromaway/posts/2171037456376083
Mayowa
Chromia creates a new lightweight programming language called RELL. How is this different and better for programmers than other popular language like Solidity, C++ and Java?
Henrik Hjelte
When you think about a large Java project done for say a bank. Ask the developers what OTHER thing they use? DO they ONLY use Java and store files on a server? Or do they also use a database. You will find that in 99.9% of cases they ALSO use a relational database. No one would EVER think about doing a solution to manage data with ONLY Java, C++ or whatever.
Alejandro Urich
For the development of the Dapps, do you only support Rell? Is it possible to program in another language that works with Chromia?
Henrik Hjelte
Because we require both relational database properties and more security than SQL, currently Rell is the only choice. It is really easy to learn, and in all cases if we allowed a “normal” language it would miss the feautures of relational databases.
zafer metin
Mr Henrik What are the advantages of Postchain used for Chromia? How is a consortium provided to database management with distributed control?
Anastasia
Thank you for your interest in Postchain uses! We have an article written what answers exactly those questions: https://blog.chromia.com/postchain-for-the-public-scaling-relational-blockchain/
Stay At Home
As I know providers will be chosen by Chromaway, so how is it decentralized due to choice is totally in Chromaway?
Henrik Hjelte
Initial providers. We will migrate to a model where ChromaWAy has no more say than anyone else. But we need to bootstrap and start. Better to choose good initial providers.
David Prince
What is your long-term vision about the industry which Chromia is working at? Are you afraid someday there will be another Project with more innovative technology can replace Chromia?
Henrik Hjelte
Well. Blockchain is about managing data (in a shared context). I’m repeating myself but the market leading (85%) for 30+ years slution to manage data is a relational database. We are now the only relational database + blockchain. Who knows, maybe some better way to manage data will be invented? But even NoSQL who has been around and bark like a little dog has after a decade or more time only 15% market share. I think our tech will stand the mark of time.
Sidonpee
The AMA session with the Chronia team has finally come to an end.
We’re greatly astonished having a well-articulated AMA session with Chronia’s CEO Henrik Hjelte u/henrik_hjelte and community/social media manager team Anastasia u/anastasiazudina in the community👨‍💻👌
Also, we are indeed overwhelmed by all our esteemed community members, for your support and enthusiasm for the project.
For more information and to be part of the project, you may join the Chronia’s community here via:
https://t.me/hellochromia
Telegram
(https://t.me/hellochromia)Chromia — Official English Group
The official Chromia community group by ChromaWay. Where dapps thrive!
submitted by dam30 to Teamchromia [link] [comments]

Lightning lnd v0.5-beta has been released!

Lightning lnd v0.5-beta has been released! submitted by sunndeeds to Bitcoin [link] [comments]

Groestlcoin 6th Anniversary Release

Introduction

Dear Groestlers, it goes without saying that 2020 has been a difficult time for millions of people worldwide. The groestlcoin team would like to take this opportunity to wish everyone our best to everyone coping with the direct and indirect effects of COVID-19. Let it bring out the best in us all and show that collectively, we can conquer anything.
The centralised banks and our national governments are facing unprecedented times with interest rates worldwide dropping to record lows in places. Rest assured that this can only strengthen the fundamentals of all decentralised cryptocurrencies and the vision that was seeded with Satoshi's Bitcoin whitepaper over 10 years ago. Despite everything that has been thrown at us this year, the show must go on and the team will still progress and advance to continue the momentum that we have developed over the past 6 years.
In addition to this, we'd like to remind you all that this is Groestlcoin's 6th Birthday release! In terms of price there have been some crazy highs and lows over the years (with highs of around $2.60 and lows of $0.000077!), but in terms of value– Groestlcoin just keeps getting more valuable! In these uncertain times, one thing remains clear – Groestlcoin will keep going and keep innovating regardless. On with what has been worked on and completed over the past few months.

UPDATED - Groestlcoin Core 2.18.2

This is a major release of Groestlcoin Core with many protocol level improvements and code optimizations, featuring the technical equivalent of Bitcoin v0.18.2 but with Groestlcoin-specific patches. On a general level, most of what is new is a new 'Groestlcoin-wallet' tool which is now distributed alongside Groestlcoin Core's other executables.
NOTE: The 'Account' API has been removed from this version which was typically used in some tip bots. Please ensure you check the release notes from 2.17.2 for details on replacing this functionality.

How to Upgrade?

Windows
If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), then run the installer.
OSX
If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), run the dmg and drag Groestlcoin Core to Applications.
Ubuntu
http://groestlcoin.org/forum/index.php?topic=441.0

Other Linux

http://groestlcoin.org/forum/index.php?topic=97.0

Download

Download the Windows Installer (64 bit) here
Download the Windows Installer (32 bit) here
Download the Windows binaries (64 bit) here
Download the Windows binaries (32 bit) here
Download the OSX Installer here
Download the OSX binaries here
Download the Linux binaries (64 bit) here
Download the Linux binaries (32 bit) here
Download the ARM Linux binaries (64 bit) here
Download the ARM Linux binaries (32 bit) here

Source

ALL NEW - Groestlcoin Moonshine iOS/Android Wallet

Built with React Native, Moonshine utilizes Electrum-GRS's JSON-RPC methods to interact with the Groestlcoin network.
GRS Moonshine's intended use is as a hot wallet. Meaning, your keys are only as safe as the device you install this wallet on. As with any hot wallet, please ensure that you keep only a small, responsible amount of Groestlcoin on it at any given time.

Features

Download

iOS
Android

Source

ALL NEW! – HODL GRS Android Wallet

HODL GRS connects directly to the Groestlcoin network using SPV mode and doesn't rely on servers that can be hacked or disabled.
HODL GRS utilizes AES hardware encryption, app sandboxing, and the latest security features to protect users from malware, browser security holes, and even physical theft. Private keys are stored only in the secure enclave of the user's phone, inaccessible to anyone other than the user.
Simplicity and ease-of-use is the core design principle of HODL GRS. A simple recovery phrase (which we call a Backup Recovery Key) is all that is needed to restore the user's wallet if they ever lose or replace their device. HODL GRS is deterministic, which means the user's balance and transaction history can be recovered just from the backup recovery key.

Features

Download

Main Release (Main Net)
Testnet Release

Source

ALL NEW! – GroestlcoinSeed Savior

Groestlcoin Seed Savior is a tool for recovering BIP39 seed phrases.
This tool is meant to help users with recovering a slightly incorrect Groestlcoin mnemonic phrase (AKA backup or seed). You can enter an existing BIP39 mnemonic and get derived addresses in various formats.
To find out if one of the suggested addresses is the right one, you can click on the suggested address to check the address' transaction history on a block explorer.

Features

Live Version (Not Recommended)

https://www.groestlcoin.org/recovery/

Download

https://github.com/Groestlcoin/mnemonic-recovery/archive/master.zip

Source

ALL NEW! – Vanity Search Vanity Address Generator

NOTE: NVidia GPU or any CPU only. AMD graphics cards will not work with this address generator.
VanitySearch is a command-line Segwit-capable vanity Groestlcoin address generator. Add unique flair when you tell people to send Groestlcoin. Alternatively, VanitySearch can be used to generate random addresses offline.
If you're tired of the random, cryptic addresses generated by regular groestlcoin clients, then VanitySearch is the right choice for you to create a more personalized address.
VanitySearch is a groestlcoin address prefix finder. If you want to generate safe private keys, use the -s option to enter your passphrase which will be used for generating a base key as for BIP38 standard (VanitySearch.exe -s "My PassPhrase" FXPref). You can also use VanitySearch.exe -ps "My PassPhrase" which will add a crypto secure seed to your passphrase.
VanitySearch may not compute a good grid size for your GPU, so try different values using -g option in order to get the best performances. If you want to use GPUs and CPUs together, you may have best performances by keeping one CPU core for handling GPU(s)/CPU exchanges (use -t option to set the number of CPU threads).

Features

Usage

https://github.com/Groestlcoin/VanitySearch#usage

Download

Source

ALL NEW! – Groestlcoin EasyVanity 2020

Groestlcoin EasyVanity 2020 is a windows app built from the ground-up and makes it easier than ever before to create your very own bespoke bech32 address(es) when whilst not connected to the internet.
If you're tired of the random, cryptic bech32 addresses generated by regular Groestlcoin clients, then Groestlcoin EasyVanity2020 is the right choice for you to create a more personalised bech32 address. This 2020 version uses the new VanitySearch to generate not only legacy addresses (F prefix) but also Bech32 addresses (grs1 prefix).

Features

Download

Source

Remastered! – Groestlcoin WPF Desktop Wallet (v2.19.0.18)

Groestlcoin WPF is an alternative full node client with optional lightweight 'thin-client' mode based on WPF. Windows Presentation Foundation (WPF) is one of Microsoft's latest approaches to a GUI framework, used with the .NET framework. Its main advantages over the original Groestlcoin client include support for exporting blockchain.dat and including a lite wallet mode.
This wallet was previously deprecated but has been brought back to life with modern standards.

Features

Remastered Improvements

Download

Source

ALL NEW! – BIP39 Key Tool

Groestlcoin BIP39 Key Tool is a GUI interface for generating Groestlcoin public and private keys. It is a standalone tool which can be used offline.

Features

Download

Windows
Linux :
 pip3 install -r requirements.txt python3 bip39\_gui.py 

Source

ALL NEW! – Electrum Personal Server

Groestlcoin Electrum Personal Server aims to make using Electrum Groestlcoin wallet more secure and more private. It makes it easy to connect your Electrum-GRS wallet to your own full node.
It is an implementation of the Electrum-grs server protocol which fulfils the specific need of using the Electrum-grs wallet backed by a full node, but without the heavyweight server backend, for a single user. It allows the user to benefit from all Groestlcoin Core's resource-saving features like pruning, blocks only and disabled txindex. All Electrum-GRS's feature-richness like hardware wallet integration, multi-signature wallets, offline signing, seed recovery phrases, coin control and so on can still be used, but connected only to the user's own full node.
Full node wallets are important in Groestlcoin because they are a big part of what makes the system be trust-less. No longer do people have to trust a financial institution like a bank or PayPal, they can run software on their own computers. If Groestlcoin is digital gold, then a full node wallet is your own personal goldsmith who checks for you that received payments are genuine.
Full node wallets are also important for privacy. Using Electrum-GRS under default configuration requires it to send (hashes of) all your Groestlcoin addresses to some server. That server can then easily spy on your transactions. Full node wallets like Groestlcoin Electrum Personal Server would download the entire blockchain and scan it for the user's own addresses, and therefore don't reveal to anyone else which Groestlcoin addresses they are interested in.
Groestlcoin Electrum Personal Server can also broadcast transactions through Tor which improves privacy by resisting traffic analysis for broadcasted transactions which can link the IP address of the user to the transaction. If enabled this would happen transparently whenever the user simply clicks "Send" on a transaction in Electrum-grs wallet.
Note: Currently Groestlcoin Electrum Personal Server can only accept one connection at a time.

Features

Download

Windows
Linux / OSX (Instructions)

Source

UPDATED – Android Wallet 7.38.1 - Main Net + Test Net

The app allows you to send and receive Groestlcoin on your device using QR codes and URI links.
When using this app, please back up your wallet and email them to yourself! This will save your wallet in a password protected file. Then your coins can be retrieved even if you lose your phone.

Changes

Download

Main Net
Main Net (FDroid)
Test Net

Source

UPDATED – Groestlcoin Sentinel 3.5.06 (Android)

Groestlcoin Sentinel is a great solution for anyone who wants the convenience and utility of a hot wallet for receiving payments directly into their cold storage (or hardware wallets).
Sentinel accepts XPUB's, YPUB'S, ZPUB's and individual Groestlcoin address. Once added you will be able to view balances, view transactions, and (in the case of XPUB's, YPUB's and ZPUB's) deterministically generate addresses for that wallet.
Groestlcoin Sentinel is a fork of Groestlcoin Samourai Wallet with all spending and transaction building code removed.

Changes

Download

Source

UPDATED – P2Pool Test Net

Changes

Download

Pre-Hosted Testnet P2Pool is available via http://testp2pool.groestlcoin.org:21330/static/

Source

submitted by Yokomoko_Saleen to groestlcoin [link] [comments]

How to test lightning network (on testnet)

I'll explain in brief how to setup a running lightning node, working on testnet. I chose the simplest setup possible, that doesn't require spending too time with compilers and similar thing, I also choose windows as OS to be more newbie-friendly
So, I choose this configuration:
Let's go:
Hope this little guide will be useful, please tell me if i've missed some steps or if i said something incorrect, i'll correct it. At the moment i still see some bugs/routing problems, don't know if i'm doing something wrong or if there are bugs in the software, but let's just test it and tell me in the comments how it goes.
If you like this guide and want to send a small donation, here is my address:
(non-segwit) 1HQaBn6SRxVaQT7tk2e4Z4ewXbsxok3xwJ
(segwit) bc1q4y4t6cyed5l36udfzrmmp6uu0j3kgtttzxk56m
submitted by frenulocorto to Bitcoin [link] [comments]

The Cryptocurrency News Portal - YouTube Bitcoin: For Social Good? USB Bitcoin Miner - The Power of 1000's Computers - YouTube blockchain test docker v2 spid test net

Address letter testnet X RPC port 17667 P2P port 17668 Block reward (POW) 50 coins Block reward after POW phase: 5 coins Premine: NO PREMINE Coin supply POW 12960000 Coin Supply POS (1440 x 5/day) Last PoW block block 259200 Superblock reward 10% - Disabled Masternode reward 50% Masternode collateral 10000 BCX Masternode confirmations 15 blocks Coinbase maturity 20 ( + 1 default confirmation ... using the same JSON-RPC default port for both testnet and regtest prevents running both at the same time on the same machine. Since RPCport=P2Pport-1 for both mainnet and testnet, and regtest P2Pport being 18444, 18443 is proposed for regtest RPCport Documentation has been updated (or created where missing); manpages doc/man/bitcoin*.1 could include information for regtest too To clean up any files created while running the testnet and restore to the original state: $ make clean Using with docker. This testnet-box can be used with Docker to run it in an isolated container. Building docker image. Pull the image. docker pull freewil/bitcoin-testnet-box; or build it yourself from this directory. docker build -t bitcoin ... Listen for connections on <port> (default: 8333 or testnet: 18333) -proxy=<ip:port> Connect through SOCKS5 proxy -proxyrandomize : Randomize credentials for every proxy connection. This enables Tor stream isolation (default: 1) -rpcserialversion : Sets the serialization of raw transaction or block hex returned in non-verbose mode, non-segwit(0) or segwit(1) (default: 1) -seednode=<ip> Connect ... The port forwarding settings should allow you to map an external port on your router to the “internal port” of a device on your network as shown in the screenshot below. Both the external port and the internal port should be 8333 for Bitcoin. (You may also want to map port 18333 for Bitcoin’s testnet, although this guide does not cover ...

[index] [12592] [45284] [29836] [45873] [35254] [2587] [45916] [22786] [38546] [44384]

The Cryptocurrency News Portal - YouTube

KnCMiner Jupiter - Bitcoin Miner 500GH/s+ 28nm ASIC chips - unboxing and setup 1080p - Duration: 4:18. Florian Uhlemann 130,974 views. 4:18. Language: English Location: United States ... SUBSCRIBE FOR MORE HOW MUCH - http://shorturl.at/arBHL GekkoScience NewPac USB Miner - https://bit.ly/2RIQgdX GekkoScience 8 Port USB Hub - https://bit.ly/2x... #Bitcoin: Social good, legality, and adoption Thank you Andreas! Check out our partner page at: https://thelocalforum.com/ Here you can find free stuff & fre... 🔥 Captain Bitcoin - Platforma edukacyjna o technologii Blockchain, Bitcoin'a, aplikacjach. Oglądaj filmy, odpowiadaj na pytania, zdobywaj Tokeny Kapitana (CAPT) i wygrywaj Bitcoiny (BTC). This page is for educational purposes only and aggregates information about the cryptocurrency world. Please do you own research when considering investing i...

#