Bitcoin 101 - CoinDesk

ARK. Here's what's it's all about, what's been going on, and what's coming. [Explain Like I'm Busy]

Dude, it said explain like I'm busy I'm not going to read all this

No problem. Check out these hand-picked relevant ARK Crypto Podcast episodes. Learn while you listen, drive to work or home, cook a steak, give your dog a bath, etc.
If you have decided to read all this, thanks, keep reading for a concise breakdown!

So what's the current big thing going on with ARK right NOW?

ARK.io has recently announced on both its blog and its Twitter that ARK Core v2.6 is coming to Mainnet February 11th. The iteration of 2.6 may sound anticlimactic, but it's far from that. Core v2.6 is the biggest upgrade to date- even bigger than the total Core overhaul performed for v2.0, deployed late 2018.
The new version brings new transaction types to the ARK Public Network, including types that will play a role in creating an ecosystem of linked chains. This ecosystem of linked chains will have the ARK Public Network in the center of the action, storing chain details and allowing for chain discovery.
These new transaction types include:
Multipayments — sending to multiple ARK addresses, while just initiating one transaction, saves time and cost
Multisignatures — you can now get all of the benefits of multisignatures where more than one user can propose or spend funds depending on the predefined terms (eg. 2 out of 3 users needed to successfully send tokens, vote, …)
IPFS — register IPFS compliant hashes on the ARK blockchain within Desktop Wallet.
Business & Bridgechain registrations — you can now register your business and bridgechain on the blockchain and soon, you will be able to get verified via our Marketplace to get access to some exciting new features.
Delegate resignation — delegates who don’t want to be voted for anymore can now opt-out of this by simply initiating delegate resignation.
Additionally, the Core v2.6 improves security against double-spend attacks by implementing nonces. Also, massive enhancements were made to the GTI or Generic Transaction Interface, a critical tool for developers who wish to develop decentralized applications.

What is ARK's unique approach to current issues plaguing the blockchain industry?

ARK empowers everyone, regardless of their aim or technical background, to quickly and easily leverage blockchain technology. In the current hype-driven blockchain landscape, ARK acts as a beacon for individuals, groups, and enterprises seeking to apply blockchain technology to both reach their individual goals and affect change in their local community. ARK’s uniquely simple technology stack allows almost anyone to create and deploy standalone blockchains for any use case with an intuitive graphical user interface and experience. These newly created blockchains also known as bridgechains will have the ability to interoperate through ARK SmartBridge Technology. ARK is also reinventing smart contracts with ARK Logic, a collection of tools including custom transaction types, templates, and plugins. ARK Logic brings security, adaptability, and scalability to decentralized computing workflows. Most importantly, the ARK Ecosystem fosters a growing international community of developers, node operators, blockchains, businesses, and enthusiasts who collectively breathe life into this disruptive technology. Get into the interactive whitepaper here.

Tell me about the ARK Public Network

Ok, no problem. Since coming online on March 21, 2017, the APN has operated as a P2P cryptocurrency with fast block times of 8 seconds and low dynamic fees (near a penny and somewhat novel for a DPoS blockchain). However, the end goal of the APN far exceeds that of just a cryptocurrency that is faster and cheaper to use than Bitcoin. I'll explain further in a minute.
The network, as mentioned, is set up as Delegated Proof-of-Stake. This means forging delegates are deemed worthy to secure the chain and add blocks to it by the holders of the ARK token, which vote for delegates using their ARK as vote weight. ARK remains in users' control at all times, and the top 51 delegates in vote weight enter forging status. The network awards each delegate 2 ARK per block (~12,705 ARK/mo) for services rendered. This continues ad infinitum resulting in a declining inflation rate each year (relative to total supply). When users add or remove ARK from a voting wallet address, vote weight adjusts automatically and they don't need to vote again. Voting continues even if user's wallet is offline.
The main uses of ARK as the cryptoasset of the ARK Public Network besides being a P2P cryptocurrency include:
If you're interested in more details about APN uses, check this direct link to that section of whitepaper.

Is team good?

Yes, team good. Team very good. General sentiment among ARK team members is that ARK is a dream project to work on, and this motivates them to do great work on a consistent basis as the ARK technology stack progresses. Very recently, ARK hired an additional half dozen people in various departments, including marketing department. This brings ARK team total to over three dozen experts. The ARK business entity is also well funded with around 10 years of budget. The ARK business entity spends funds in a very sensible manner compared to some other projects who spend with insufficient foresight or discretion.
Members of the board are thoughtful and deliberate, and the CEO FX Thoorens has been hard at work putting a spotlight on ARK, showing an 'intermeshing' of ARK with the global regulatory landscape in regards to crypto. Recently, ARK became a founding member of ADAN, a professional association based in France created to help structure and develop the digital assets industry. Other members include Consensys France and Ledger. ADAN will consult with public authorities, industry leaders and private bodies to promote the use of digital assets and all activities in this sector. This includes exchange platforms, brokers, hardware, protocols, decentralized applications and blockchain technology platforms. Hear FX Thoorens talk more about this in this podcast episode.
The ARK business entity is located in France, but the ARK team is distributed across 10+ countries and multiple continents.

What's going to happen?

Cool stuff. Organizations and open source projects have been stumbling across ARK and really like what they see. Multiple projects are working with ARK technology and are at various stages of development, but since you're busy, I'll highlight the project nOS which recently launched their public testnet and uses ARK technology for their blockchain. nOS also has great things to say about ARK that you can hear in this podcast episode or watch in this video.
We believe that as more businesses, organizations, and open source projects start looking around for blockchain solutions, they will also enjoy ARK's simplicity, flexibility, and feature set. Our powerful technology stack is backed up by a recently upgraded documentation hub for developers.
The product we have that makes it very easy for projects to join the ARK Ecosystem is called the ARK Deployer, which you can learn about in this two minute video. It allows developers from all walks of life to create, customize and launch a standalone blockchain in three simple steps. In the near future, what's going to happen is a big improvement to the Deployer. The ARK Deployer will get an upgraded and more powerful user interface that also facilitates chain management post-launch, as well as interface directly with cloud providers like Digital Ocean to launch genesis node and peers in background. This would allow for a massive leap forward in our vision of 'Point. Click. Blockchain.'
ARK.io is also working on a Marketplace for developers, where custom plugins and tools developed by both ARK.io as well as third parties can be acquired for assembling blockchains much easier. Imagine a wordpress-type environment where you can create a super-powerful and customized blockchain by connecting Legos together. In the same way that early World Wide Web needed WordPress/Squarespace style tools to bring the technology to every business or organization, we believe that this need will be out there for blockchain technology as this new decade progresses.
There is more cool stuff that is going to happen, but I'll wrap it up there for now.

After reading all this stuff, what is it you want me to do?

Well, not make any financial decisions, because that is not the purpose of this information. However, as a developer, there's a lot of interesting things you should know and may want to consider doing. The ARK technology stack uses TypeScript and other JS-style frameworks, so if you know those, you should get excited.
Here's some additional less 'developery' stuff you can do:
Thanks for coming along for the ride of this post. ARK has been out here, it's out here, and it's going to continue to be out here, doing its part to make sure everybody knows that blockchains are, in fact, a thing.
submitted by doubled1c3 to ArkEcosystem [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]

Decred Journal – September 2018

Note: you can read this on GitHub (link), Medium (link) or old Reddit (link).

Development

Final version 1.3.0 of the core software was released bringing all the enhancements reported last month to the rest of the community. The groundwork for SPV (simplified payment verification) is complete, another reduction of fees is being deployed, and performance stepped up once again with a 50% reduction in startup time, 20% increased sync speed and more than 3x faster peer delivery of block headers (a key update for SPV). Decrediton's integrations of SPV and Politeia are open for testing by experienced users. Read the full release notes and get the downloads on GitHub. As always, don't forget to verify signatures.
dcrd: completed several steps towards multipeer downloads, improved introduction to the software in the main README, continued porting cleanups and refactoring from upstream btcd.
Currently in review are initial release of smart fee estimator and a change to UTXO set semantics. The latter is a large and important change that provides simpler handling, and resolves various issues with the previous approach. A lot of testing and careful review is needed so help is welcome.
Educational series for new Decred developers by @matheusd added two episodes: 02 Simnet Setup shows how to automate simnet management with tmux and 03 Miner Reward Invalidation explains block validity rules.
Finally, a pull request template with a list of checks was added to help guide the contributors to dcrd.
dcrwallet: bugfixes and RPC improvements to support desktop and mobile wallets.
Developers are welcome to comment on this idea to derive stakepool keys from the HD wallet seed. This would eliminate the need to backup and restore redeem scripts, thus greatly improving wallet UX. (missed in July issue)
Decrediton: bugfixes, refactoring to make the sync process more robust, new loading animations, design polishing.
Politeia: multiple improvements to the CLI client (security conscious users with more funds at risk might prefer CLI) and security hardening. A feature to deprecate or timeout proposals was identified as necessary for initial release and the work started. A privacy enhancement to not leak metadata of ticket holders was merged.
Android: update from @collins: "Second test release for dcrandroid is out. Major bugs have been fixed since last test. Latest code from SPV sync has been integrated. Once again, bug reports are welcome and issues can be opened on GitHub". Ask in #dev room for the APK to join testing.
A new security page was added that allows one to validate addresses and to sign/verify messages, similar to Decrediton's Security Center. Work on translations is beginning.
Overall the app is quite stable and accepting more testers. Next milestone is getting the test app on the app store.
iOS: the app started accepting testers last week. @macsleven: "the test version of Decred Wallet for iOS is available, we have a link for installing the app but the builds currently require your UDID. Contact either @macsleven or @raedah with your UDID if you would like to help test.".
Nearest goal is to make the app crash free.
Both mobile apps received new design themes.
dcrdata: v3.0 was released for mainnet! Highlights: charts, "merged debits" view, agendas page, Insight API support, side chain tracking, Go 1.11 support with module builds, numerous backend improvements. Full release notes here. This release featured 9 contributors and development lead @chappjc noted: "This collaboration with @raedahgroup on our own block explorer and web API for @decredproject has been super productive.".
Up next is supporting dynamic page widths site wide and deploying new visual blocks home page.
Trezor: proof of concept implementation for Trezor Model T firmware is in the works (previous work was for Model One).
Ticket splitting: updated to use Go modules and added simnet support, several fixes.
docs: beginner's guide overhaul, multiple fixes and cleanups.
decred.org: added 3rd party wallets, removed inactive PoW pools and removed web wallet.
@Richard-Red is building a curated list of Decred-related GitHub repositories.
Welcome to new people contributing for the first time: @klebe, @s_ben, @victorguedes, and PrimeDominus!
Dev activity stats for September: 219 active PRs, 197 commits, 28.7k added and 18.8k deleted lines spread across 6 repositories. Contributions came from 4-10 developers per repository. (chart)

Network

Hashrate: started and ended the month around 75 PH/s, hitting a low of 60.5 and a new high of 110 PH/s. BeePool is again the leader with their share varying between 23-54%, followed by F2Pool 13-30%, Coinmine 4-6% and Luxor 3-5%. As in previous months, there were multiple spikes of unidentified hashrate.
Staking: 30-day average ticket price is 98 DCR (+2.4). The price varied between 95.7 and 101.9 DCR. Locked DCR amount was 3.86-3.96 million DCR, or 45.7-46.5% of the supply.
Nodes: there are 201 public listening nodes and 325 normal nodes per dcred.eu. Version distribution: 5% are v1.4.0(pre) dev builds (+3%), 30% on v1.3.0 (+25%), 42% on v1.2.0 (-20%), 15% on v1.1.2 (-7%), 6% on v1.1.0. More than 76% of nodes run v1.2.0 and higher and therefore support client filters. Data as of Oct 1.

ASICs

Obelisk posted two updates on their mailing list. 70% of Batch 1 units are shipped, an extensive user guide is available, Obelisk Scanner application was released that allows one to automatically update firmware. First firmware update was released and bumped SC1 hashrate by 10-20%, added new pools and fixed multiple bugs. Next update will focus on DCR1. It is worth a special mention that the firmware source code is now open! Let us hope more manufacturers will follow this example.
A few details about Whatsminer surfaced this month. The manufacturer is MicroBT, also known as Bitwei and commonly misspelled as Bitewei. Pangolinminer is a reseller, and the model name is Whatsminer D1.
Bitmain has finally entered Decred ASIC space with their Antminer DR3. Hash rate is 7.8 TH/s while pulling 1410 W, at the price of $673. These specs mean it has the best GH/W and GH/USD of currently sold miners until the Whatsminer or others come out, although its GH/USD of 11.6 already competes with Whatsminer's 10.5. Discussed on Reddit and bitcointalk, unboxing video here.

Integrations

Meet our 17th voting service provider: decredvoting.com. It is operated by @david, has 2% fee and supports ticket splitting. Reddit thread is here.
For a historical note, the first VSP to support ticket splitting was decredbrasil.com:
@matheusd started tests on testnet several months ago. I contacted him so we could integrate with the pool in June this year. We set up the machine in July and bought the first split ticket on mainnet, using the decredbrasil pool, on July 19. It was voted on July 30. After this first vote on mainnet, we opened the tests to selected users (with more technical background) on the pool. In August we opened the tests to everyone, and would call people who want to join to the #ticket_splitting channel, or to our own Slack (in Portuguese, so mostly Brazilian users). We have 28 split tickets already voted, and 16 are live. So little more than 40 split tickets total were bought on decredbrasil pool. (@girino in #pos-voting)
KuCoin exchange listed DCBTC and DCETH pairs. To celebrate their anniversary they had a 99% trading fees discount on DCR pairs for 2 weeks.
Three more wallets integrated Decred in September:
ChangeNow announced Decred addition to their Android app that allows accountless swaps between 150+ assets.
Coinbase launched informational asset pages for top 50 coins by market cap, including Decred. First the pages started showing in the Coinbase app for a small group of testers, and later the web price dashboard went live.

Adoption

The birth of a Brazilian girl was registered on the Decred blockchain using OriginalMy, a blockchain proof of authenticity services provider. Read the full story in Portuguese and in English.

Marketing

Advertising report for September is ready. Next month the graphics for all the ads will be changing.
Marketing might seem quiet right now, but a ton is actually going on behind the scenes to put the right foundation in place for the future. Discovery data are being analyzed to generate a positioning strategy, as well as a messaging hierarchy that can guide how to talk about Decred. This will all be agreed upon via consensus of the community in the work channels, and materials will be distributed.
Next, work is being done to identify the right PR partner to help with media relations, media training, and coordination at events. While all of this is coming up to speed, we believe the website needs a refresher reflecting the soon to be agreed upon messaging, plus a more intuitive architecture to make it easier to navigate. (@Dustorf)

Events

Attended:
Upcoming:
We'll begin shortly reviewing conferences and events planned for the first half of 2019. Highlights are sure to include The North American Bitcoin Conference in Miami (Jan 16-18) and Consensus in NYC (May 14-16). If you have suggestions of events or conferences Decred should attend, please share them in #event_planning. In 2019, we would like to expand our presence in Europe, Asia, and South America, and we're looking for community members to help identify and staff those events. (@Dustorf)

Media

August issue of Decred Journal was translated to Russian. Many thanks to @DZ!
Rency cryptocurrency ratings published a report on Decred and incorporated a lot of feedback from the community on Reddit.
September issue of Chinese CCID ratings was published (snapshot), Decred is still at the bottom.
Videos:
Featured articles:
Articles:

Community Discussions

Community stats:
Comm systems news: Several work channels were migrated to Matrix, #writers_room is finally bridged.
Highlights:
Twitter: why decentralized governance and funding are necessary for network survival and the power of controlling the narrative; learning about governance more broadly by watching its evolution in cryptocurrency space, importance of community consensus and communications infrastructure.
Reddit: yet another strong pitch by @solar; question about buyer protections; dcrtime internals; a proposal to sponsor hoodies in the University of Cape Town; Lightning Network support for altcoins.
Chats: skills to operate a stakepool; voting details: 2 of 3 votes can approve a block, what votes really approve are regular tx, etc; scriptless script atomic swaps using Schnorr adaptor signatures; dev dashboard, choosing work, people do best when working on what interests them most; opportunities for governments and enterprise for anchoring legal data to blockchain; terminology: DAO vs DAE; human-friendly payments, sharing xpub vs payment protocols; funding btcsuite development; Politeia vote types: approval vote, sentiment vote and a defund vote, also linking proposals and financial statements; algo trading and programming languages (yes, on #trading!); alternative implementation, C/C++/Go/Rust; HFTs, algo trading, fake volume and slippage; offline wallets, usb/write-only media/optical scanners vs auditing traffic between dcrd and dcrwallet; Proof of Activity did not inspire Decred but spurred Decred to get moving, Wikipedia page hurdles; how stakeholders could veto blocks; how many votes are needed to approve a proposal; why Decrediton uses Electron; CVE-2018-17144 and over-dependence on single Bitcoin implementation, btcsuite, fuzz testing; tracking proposal progress after voting and funding; why the wallet does not store the seed at all; power connectors, electricity, wiring and fire safety; reasonable spendings from project fund; ways to measure sync progress better than block height; using Politeia without email address; concurrency in Go, locks vs channels.
#support is not often mentioned, but it must be noted that every day on this channel people get high quality support. (@bee: To my surprise, even those poor souls running Windows 10. My greatest respect to the support team!)

Markets

In September DCR was trading in the range of USD 34-45 / BTC 0.0054-0.0063. On Sep 6, DCR revisited the bottom of USD 34 / BTC 0.0054 when BTC quickly dropped from USD 7,300 to 6,400. On Sep 14, a small price rise coincided with both the start of KuCoin trading and hashrate spike to 104 PH/s. Looking at coinmarketcap charts, the trading volume is a bit lower than in July and August.
As of Oct 4, Decred is #18 by the number of daily transactions with 3,200 tx, and #9 by the USD value of daily issuance with $230k. (source: onchainfx)
Interesting observation by @ImacallyouJawdy: while we sit at 2018 price lows the amount locked in tickets is testing 2018 high.

Relevant External

ASIC for Lyra2REv2 was spotted on the web. Vertcoin team is preparing a new PoW algorithm. This would be the 3rd fork after two previous forks to change the algorithm in 2014 and 2015.
A report titled The Positive Externalities of Bitcoin Mining discusses the benefits of PoW mining that are often overlooked by the critics of its energy use.
A Brief Study of Cryptonetwork Forks by Alex Evans of Placeholder studies the behavior of users, developers and miners after the fork, and makes the cases that it is hard for child chains to attract users and developers from their parent chains.
New research on private atomic swaps: the paper "Anonymous Atomic Swaps Using Homomorphic Hashing" attempts to break the public link between two transactions. (bitcointalk, decred)
On Sep 18 Poloniex announced delisting of 8 more assets. That day they took a 12-80% dive showing their dependence on this one exchange.
Circle introduced USDC markets on Poloniex: "USDC is a fully collateralized US dollar stablecoin using the ERC-20 standard that provides detailed financial and operational transparency, operates within the regulated framework of US money transmission laws, and is reinforced by established banking partners and auditors.".
Coinbase announced new asset listing process and is accepting submissions on their listing portal. (decred)
The New York State Office of the Attorney General posted a study of 13 exchanges that contains many insights.
A critical vulnerability was discovered and fixed in Bitcoin Core. Few days later a full disclosure was posted revealing the severity of the bug. In a bitcointalk thread btcd was called 'amateur' despite not being vulnerable, and some Core developers voiced their concerns about multiple implementations. The Bitcoin Unlimited developer who found the bug shared his perspective in a blog post. Decred's vision so far is that more full node implementations is a strength, just like for any Internet protocol.

About This Issue

This is the 6th issue of Decred Journal. It is mirrored on GitHub, Medium and Reddit. Past issues are available here.
Most information from third parties is relayed directly from source after a minimal sanity check. The authors of Decred Journal have no ability to verify all claims. Please beware of scams and do your own research.
Feedback is appreciated: please comment on Reddit, GitHub or #writers_room on Matrix or Slack.
Contributions are also welcome: some areas are adding content, pre-release review or translations to other languages.
Credits (Slack names, alphabetical order): bee, Dustorf, jz, Haon, oregonisaac, raedah and Richard-Red.
submitted by jet_user to decred [link] [comments]

IRC Log from Ravencoin Open Developer Meeting - Aug 24, 2018

[14:05] <@wolfsokta> Hello Everybody, sorry we're a bit late getting started
[14:05] == block_338778 [[email protected]/web/freenode/ip.72.214.222.226] has joined #ravencoin-dev
[14:06] <@wolfsokta> Here are the topics we would like to cover today • 2.0.4 Need to upgrade - What we have done to communicate to the community • Unique Assets • iOS Wallet • General Q&A
[14:06] == Chatturga changed the topic of #ravencoin-dev to: 2.0.4 Need to upgrade - What we have done to communicate to the community • Unique Assets • iOS Wallet • General Q&A
[14:06] <@wolfsokta> Daben, could you mention what we have done to communicate the need for the 2.0.4 upgrade?
[14:07] == hwhwhsushwban [[email protected]/web/freenode/ip.172.58.37.35] has joined #ravencoin-dev
[14:07] <@wolfsokta> Others here are free to chime in where they saw the message first.
[14:07] == hwhwhsushwban [[email protected]/web/freenode/ip.172.58.37.35] has quit [Client Quit]
[14:08] Whats up bois
[14:08] hi everyone
[14:08] hi hi
[14:08] <@wolfsokta> Discussing the 2.0.4 update and the need to upgrade.
[14:08] <@Chatturga> Sure. As most of you are aware, the community has been expressing concerns with the difficulty oscillations, and were asking that something be done to the difficulty retargeting. Many people submitted suggestions, and the devs decided to implement DGW.
[14:09] <@Tron> I wrote up a short description of why we're moving to a new difficulty adjustment. https://medium.com/@tronblack/ravencoin-dark-gravity-wave-1da0a71657f7
[14:09] <@Chatturga> I have made posts on discord, telegram, bitcointalk, reddit, and ravencointalk.org from testnet stages through current.
[14:10] <@Chatturga> If there are any other channels that can reach a large number of community members, I would love to have more.
[14:10] <@wolfsokta> Thanks Tron, that hasn't been shared to the community at large yet, but folks feel free to share it.
[14:10] When was this decision made and by whom and how?
[14:10] <@Chatturga> I have also communicated with the pool operators and exchanges about the update. Of all of the current pools, only 2 have not yet updated versions.
[14:11] <@wolfsokta> The decision was made by the developers through ongoing requests for weeks made by the community.
[14:12] <@wolfsokta> Evidence was provided by the community of the damages that could be caused to projects when the wild swings continue.
[14:12] So was there a meeting or vote? How can people get invited
[14:12] <@Tron> It was also informed by my conversations with some miners that recommended that we make the change before the coin died. They witnessed similar oscillations from which other coins never recovered.
[14:13] only two pools left to upgrade is good, what about the exchanges? Any word on how many of those have/have not upgraded?
[14:13] <@wolfsokta> We talked about here in our last meeting Bruce_. All attendees were asked if they had any questions or concerns.
[14:13] == blondfrogs [[email protected]/web/freenode/ip.185.245.87.219] has joined #ravencoin-dev
[14:13] == roshii [[email protected]/web/freenode/ip.41.251.25.100] has joined #ravencoin-dev
[14:13] sup roshii long time no see
[14:14] <@Chatturga> Bittrex, Cryptopia, and IDCM have all either updated or have announced their intent to update.
[14:14] == wjcgiwgu283ik3cj [[email protected]/web/freenode/ip.172.58.37.35] has joined #ravencoin-dev
[14:15] sup russki
[14:15] what's the status here?
[14:15] I don’t think that was at all clear from the last dev meeting
[14:15] I can’t be the only person who didn’t understand it
[14:15] <@wolfsokta> Are there any suggestions on how to communicate the need to upgrade even further? I am concerned that others might also not understand.
[14:17] I’m not sold on the benefit and don’t understand the need for a hard fork — I think it’s a bad precedent to simply go rally exchanges to support a hard fork with little to no discussion
[14:17] so just to note, the exchanges not listed as being upgraded or have announced their intention to upgrade include: qbtc, upbit, and cryptobridge (all with over $40k usd volume past 24 hours according to coinmarketcap)
[14:18] <@wolfsokta> I don't agree that there was little or no discussion at all.
[14:19] <@wolfsokta> Looking back at our meeting notes from two weeks ago "fork" was specifically asked about by BrianMCT.
[14:19] If individual devs have the power to simple decide to do something as drastic as a hard fork and can get exchanges and miners to do it that’s got a lot of issues with centralization
[14:19] <@wolfsokta> It had been implemented on testnet by then and discussed in the community for several weeks before that.
[14:19] == under [[email protected]/web/freenode/ip.72.200.168.56] has joined #ravencoin-dev
[14:19] howdy
[14:19] Everything I’ve seen has been related to the asset layer
[14:19] I have to agree with Bruce_, though I wasn't able to join the last meeting here. That said I support the fork
[14:20] Which devs made this decision to do a fork and how was it communicated?
[14:20] well mostly the community made the decision
[14:20] Consensus on a change is the heart of bitcoin development and I believe the devs have done a great job building that consensus
[14:20] a lot of miners were in uproar about the situation
[14:20] <@wolfsokta> All of the devs were supporting the changes. It wasn't done in isolation at all.
[14:21] This topic has been a huge discussion point within the RVN mining community for quite some time
[14:21] the community and miners have been having issues with the way diff is adjusted for quite some time now
[14:21] Sure I’m well aware of that -
[14:21] Not sold on the benefits of having difficulty crippled by rented hashpower?
[14:21] The community saw a problem. The devs got together and talked about a solution and implemented a solution
[14:21] I’m active in the community
[14:22] So well aware of the discussions on DGW etc
[14:22] Hard fork as a solution to a problem community had with rented hashpower (nicehash!!) sounds like the perfect decentralized scenario!
[14:23] hard forks are very dangerous
[14:23] mining parties in difficulty drops are too
[14:23] <@wolfsokta> Agreed, we want to keep them to an absolute minimum.
[14:23] But miners motivation it’s the main vote
[14:24] What would it take to convince you that constantly going from 4 Th/s to 500 Gh/s every week is worse for the long term health of the coin than the risk of a hard fork to fix it?
[14:24] == Tron [[email protected]/web/freenode/ip.173.241.144.77] has quit [Ping timeout: 252 seconds]
[14:24] This hardfork does include the asset layer right? if so why is it being delayed in implementation?
[14:24] <@wolfsokta> Come back Tron!
[14:24] coudl it have been implement through bip9 voting?
[14:24] also hard fork is activated by the community! that's a vote thing!
[14:24] @mrsushi to give people time to upgrade their wallet
[14:25] @under, it would be much hard to keep consensus with a bip9 change
[14:25] <@wolfsokta> We investigated that closely Under.
[14:25] == Tron [[email protected]/web/freenode/ip.173.241.144.77] has joined #ravencoin-dev
[14:25] <@wolfsokta> See Tron's post for more details about that.
[14:25] <@spyder_> Hi Tron
[14:25] <@wolfsokta> https://medium.com/@tronblack/ravencoin-dark-gravity-wave-1da0a71657f7
[14:25] Sorry about that. Computer went to sleep.
[14:26] I'm wrong
[14:26] 2 cents. the release deadline of october 31st puts a bit of strain on getting code shipped. (duh). but fixing daa was important to the current health of the coin, and was widely suppported by current mining majority commuity. could it have been implemented in a different manner? yes . if we didnt have deadlines
[14:27] == wjcgiwgu283ik3cj [[email protected]/web/freenode/ip.172.58.37.35] has quit [Quit: Page closed]
[14:27] sushi this fork does not include assets. it's not being delayed though, we're making great progress for an Oct 31 target
[14:28] I don’t see the urgency but my vote doesn’t matter since my hash power is still CPUs
[14:28] <@wolfsokta> We're seeing the community get behind the change as well based on the amount of people jumping back in to mine through this last high difficulty phase.
[14:28] So that will be another hardfork?
[14:28] the fork does include the asset code though set to activate on oct 30th
[14:28] yes
[14:29] <@wolfsokta> Yes, it will based on the upgrade voting through the BIP9 process.
[14:29] I wanted to ask about burn rates from this group: and make a proposal.
[14:29] we're also trying hard to make it the last for awhile
[14:29] Can you clear up the above — there will be this one and another hard fork?
[14:29] <@wolfsokta> Okay, we could discuss that under towards the end of the meeting.
[14:30] If this one has the asset layer is there something different set for October
[14:30] <@wolfsokta> Yes, there will be another hard fork on October 31st once the voting process is successful.
[14:31] <@wolfsokta> The code is in 2.0.4 now and assets are active on testnet
[14:31] Bruce, the assets layer is still being worked on. Assets is active on mainnet. So in Oct 31 voting will start. and if it passes, the chain will fork.
[14:31] this one does NOT include assets for mainnet Bruce -- assets are targeted for Oct 31
[14:31] not***
[14:31] not active****
[14:31] correct me if I'm wrong here, but if everyone upgrades to 2.0.4 for this fork this week, the vote will automatically pass on oct 31st correct? nothing else needs to be done
[14:31] Will if need another download or does this software download cover both forks?
[14:31] <@wolfsokta> Correct Urgo
[14:32] thats how the testnet got activated and this one shows "asset activation status: waiting until 10/30/2018 20:00 (ET)"
[14:32] Will require another upgrade before Oct 31
[14:32] thank you for the clarification wolfsokta
[14:32] <@wolfsokta> It covers both forks, but we might have additional bug fixes in later releases.
[14:32] So users DL one version now and another one around October 30 which activates after that basically?
[14:33] I understand that, but I just wanted to make it clear that if people upgrade to this version for this fork and then don't do anything, they are also voting for the fork on oct 31st
[14:33] Oh okay — one DL?
[14:33] Bruce, Yes.
[14:33] Ty
[14:33] well there is the issue that there maybe some further consensus bugs dealing with the pruneability of asset transactions that needs to be corrected between 2.0.4 and mainnet. so i would imagine that there will be further revisions required to upgrade before now and october 31
[14:33] @under that is correct.
[14:34] I would highly recommend bumping the semver up to 3.0.0 for the final pre 31st release so that the public know to definitely upgrade
[14:34] @under +1
[14:35] out of curiosity, have there been many bugs found with the assets from the version released in july for testnet (2.0.3) until this version? or is it solely a change to DGW?
[14:35] <@wolfsokta> That's not a bad idea under.
[14:35] <@spyder_> @under good idea
[14:35] @urgo. Bugs are being found and fixed daily.
[14:35] Any time the protocol needs to change, there would need to be a hard fork (aka upgrade). It is our hope that we can activate feature forks through the BIP process (as we are doing for assets). Mining pools and exchanges will need to be on the newest software at the point of asset activation - should the mining hash power vote for assets.
[14:35] blondfrogs: gotcha
[14:35] There have been bugs found (and fixed). Testing continues. We appreciate all the bug reports you can give us.
[14:36] <@wolfsokta> Yes! Thank you all for your help in the community.
[14:37] (pull requests with fixes and test coverage would be even better!)
[14:37] asset creation collision is another major issue. current unfair advantage or nodes that fore connect to mining pools will have network topologies that guarantee acceptance. I had discussed the possibility of fee based asset creation selection and i feel that would be a more equal playing ground for all users
[14:38] *of nodes that force
[14:38] <@wolfsokta> What cfox said, we will always welcome development help.
[14:38] So just to make sure everyone know. When assets is ready to go live on oct 31st. Everyone that wants to be on the assets chain without any problems will have to download the new binary.
[14:39] <@wolfsokta> The latest binary.
[14:39] under: already in the works
[14:39] excellent to hear
[14:39] == UserJonPizza [[email protected]/web/freenode/ip.24.218.60.237] has joined #ravencoin-dev
[14:39] <@wolfsokta> Okay, we've spent a bunch of time on that topic and I think it was needed. Does anybody have any other suggestions on how to get the word out even more?
[14:40] maybe preface all 2.0.X releases as pre-releases... minimize the number of releases between now and 3.0 etc
[14:41] <@wolfsokta> Bruce_ let's discuss further offline.
[14:41] wolfsokta: which are the remaining two pools that need to be upgraded? I've identified qbtc, upbit, and cryptobridge as high volume exchanges that haven't said they were going to do it yet
[14:41] so people can help reach out to them
[14:41] f2pool is notoriously hard to contact
[14:41] are they on board?
[14:42] <@wolfsokta> We could use help reaching out to QBTC and Graviex
[14:42] I can try to contact CB if you want?
[14:42] <@Chatturga> The remaining pools are Ravenminer and PickAxePro.
[14:42] <@Chatturga> I have spoken with their operators, the update just hasnt been applied yet.
[14:42] ravenminer is one of the largest ones too. If they don't upgrade that will be a problem
[14:42] okay good news
[14:42] (PickAxePro sounds like a Ruby book)
[14:43] I strongly feel like getting the word out on ravencoin.org would be beneficial
[14:44] that site is sorely in need of active contribution
[14:44] Anyone can volunteer to contribute
[14:44] <@wolfsokta> Okay, cfox can you talk about the status of unique assets?
[14:44] sure
[14:45] <@wolfsokta> I'll add website to the end of our topics.
[14:45] code is in review and will be on the development branch shortly
[14:45] would it make sense to have a page on the wiki (or somewhere else) that lists the wallet versions run by pools & exchanges?
[14:45] will be in next release
[14:45] furthermore, many sites have friendly link to the standard installers for each platform, if the site linked to the primary installers for each platform to reduce github newb confusion that would be good as well
[14:46] likely to a testnetv5 although that isn't settled
[14:46] <@wolfsokta> Thanks cfox.
[14:46] <@wolfsokta> Are there any questions about unique assets, and how they work?
[14:47] after the # are there any charachters you cant use?
[14:47] will unique assets be constrained by the asset alphanumeric set?
[14:47] ^
[14:47] <@Chatturga> @Urgo there is a page that tracks and shows if they have updated, but it currently doesnt show the actual version that they are on.
[14:47] a-z A-Z 0-9
[14:47] <@Chatturga> https://raven.wiki/wiki/Exchange_notifications#Pools
[14:47] There are a few. Mostly ones that mess with command-line
[14:47] you'll be able to use rpc to do "issueunique MATRIX ['Neo','Tank','Tank Brother']" and it will create three assets for you (MATRIX#Neo, etc.)
[14:47] @cfox - No space
[14:48] @under the unique tags have an expanded set of characters allowed
[14:48] Chatturga: thank you
[14:48] @UJP yes there are some you can't use -- I'll try to post gimmie a sec..
[14:49] Ok. Thank you much!
[14:49] 36^36 assets possible and 62^62 uniques available per asset?
[14:49] <@spyder_> std::regex UNIQUE_TAG_CHARACTERS("^[[email protected]$%&*()[\\]{}<>_.;?\\\\:]+$");
[14:50] regex UNIQUE_TAG_CHARACTERS("^[[email protected]$%&*()[\\]{}<>_.;?\\\\:]+$")
[14:50] oh thanks Mark
[14:51] <@wolfsokta> Okay, next up. I want to thank everybody for helping test the iOS wallet release.
[14:51] <@wolfsokta> We are working with Apple to get the final approval to post it to the App Store
[14:51] @under max asset length is 30, including unique tag
[14:51] Does the RVN wallet have any other cryptos or just RVN?
[14:52] == BruceFenton [[email protected]/web/freenode/ip.67.189.233.170] has joined #ravencoin-dev
[14:52] will the android and ios source be migrated to the ravenproject github?
[14:52] I've been adding beta test users. I've added about 80 new users in the last few days.
[14:52] <@wolfsokta> Just RVN, and we want to focus on adding the asset support to the wallet.
[14:53] == Bruce_ [[email protected]/web/freenode/ip.67.189.233.170] has quit [Ping timeout: 252 seconds]
[14:53] <@wolfsokta> Yes, the code will also be freely available on GitHub for both iOS and Android. Thank you Roshii!
[14:53] Would you consider the iOS wallet to be a more secure place for one's holdings than say, a Mac connected to the internet?
[14:53] will there be a chance of a more user freindly wallet with better graphics like the iOS on PC?
[14:53] the android wallet is getting updated for DGW, correct?
[14:53] <@wolfsokta> That has come up in our discussion Pizza.
[14:54] QT framework is pretty well baked in and is cross platform. if we get some qt gurus possibly
[14:54] Phones are pretty good because the wallet we forked uses the TPM from modern phones.
[14:54] Most important is to write down and safely store your 12 word seed.
[14:54] TPM?
[14:54] <@wolfsokta> A user friendly wallet is one of our main goals.
[14:55] TPM == Trusted Platform Module
[14:55] Ahhh thanks
[14:55] just please no electron apps. they are full of security holes
[14:55] <@spyder_> It is whats makes your stuffs secure
[14:55] not fit for crypto
[14:55] under: depends on who makes it
[14:55] The interface screenshots I've seen look like Bread/Loaf wallet ... I assume that's what was forked from
[14:55] ;)
[14:56] <@wolfsokta> @roshii did you see the question about the Android wallet and DGW?
[14:56] Yes, it was a fork of breadwallet. We like their security.
[14:56] chromium 58 is the last bundled electron engine and has every vuln documented online by google. so unless you patch every vuln.... methinks not
[14:56] Agreed, great choice
[14:57] <@wolfsokta> @Under, what was your proposal?
[14:58] All asset creation Transactions have a mandatory OP_CHECKLOCKTIMEVERIFY of 1 year(or some agreed upon time interval), and the 500 RVN goes to a multisig devfund, run by a custodial group. We get: 1) an artificial temporary burn, 2) sustainable community and core development funding for the long term, after OSTK/Medici 3) and the reintroduction of RVN supply at a fixed schedule, enabling the removal of the 42k max cap of total As
[14:58] *im wrong on the 42k figure
[14:58] <@wolfsokta> Interesting...
[14:59] <@wolfsokta> Love to hear others thoughts.
[14:59] Update: I posted a message on the CryptoBridge discord and one of their support members @stepollo#6276 said he believes the coin team is already aware of the fork but he would forward the message about the fork over to them right now anyway
[14:59] Ifs 42 million assets
[14:59] yep.
[15:00] I have a different Idea. If the 500 RVN goes to a dev fund its more centralized. The 500 RVN should go back into the unmined coins so miners can stay for longer.
[15:01] *without a hardfork
[15:01] <@wolfsokta> lol
[15:01] that breaks halving schedule, since utxos cant return to an unmined state.
[15:01] @UJP back into coinbase is interesting. would have to think about how that effects distribution schedule, etc.
[15:01] only way to do that would be to dynamicaly grow max supply
[15:02] and i am concerned already about the max safe integer on various platforms at 21 billion
[15:02] js chokes on ravencoin already
[15:02] <@wolfsokta> Other thoughts on Under's proposal? JS isn't a real language. ;)
[15:02] Well Bitcoin has more than 21 bn Sats
[15:02] Is there somebody who wants to volunteer to fix js.
[15:02] hahaha
[15:03] I honestly would hate for the coins to go to a dev fund. It doesn't seem like Ravencoin to me.
[15:03] Yep, but we're 21 billion x 100,000,000 -- Fits fine in a 64-bit integer, but problematic for some languages.
[15:03] <@wolfsokta> Thanks UJP
[15:04] <@wolfsokta> We're past time but I would like to continue if you folks are up for it.
[15:04] Yeah no coins can go anywhere centrality contorted like a dev fund cause that would mean someone has to run it and the code can’t decide that so it’s destined to break
[15:05] currently and long term with out the financial backing of development then improvements and features will be difficult. we are certainly thankful for our current development model. but if a skunkworks project hits a particular baseline of profitability any reasonable company would terminate it
[15:05] Yes let’s contibue for sure
[15:05] the alternative to a dev fund in my mind would be timelocking those funds back to the issuers change address
[15:06] But we can’t have dev built in to the code — it has to be open source like Bitcoin and monero and Litecoin - it’s got drawbacks but way more advantages- it’s the best model
[15:06] Dev funding
[15:06] i highly reccommend not reducing the utility of raven by removing permanently the supply
[15:07] == BW_ [[email protected]/web/freenode/ip.138.68.243.202] has joined #ravencoin-dev
[15:07] timelocking those funds accompllishes the same sacrifice
[15:07] @under timelocking is interesting too
[15:07] How exactly does timelocking work?
[15:07] <@wolfsokta> ^
[15:07] I mean you could change the price of assets with the Block reward halfing.
[15:07] == Roshiix [[email protected]/web/freenode/ip.105.67.2.212] has joined #ravencoin-dev
[15:08] funds cant be spent from an address until a certain time passes
[15:08] but in a what magical fairy land do people continue to work for free forever. funding development is a real issue... as much as some might philosphically disagree. its a reality
[15:08] You’d still need a centralized party to decide how to distribute the funds
[15:08] even unofficially blockstream supports bitcoin devs
[15:08] on chain is more transparent imho
[15:09] == Tron_ [[email protected]/web/freenode/ip.173.241.144.77] has joined #ravencoin-dev
[15:09] @UJP yes there are unlimited strategies. one factor that I think is v important is giving application developers a way to easily budget for projects which leads to flat fees
[15:09] If the project is a success like many of believe it will be, I believe plenty of people will gladly done to a dev fund. I don't think the 500 should be burned.
[15:09] *donate
[15:09] centralized conservatorship, directed by community voting process
[15:10] == Tron [[email protected]/web/freenode/ip.173.241.144.77] has quit [Ping timeout: 252 seconds]
[15:10] <@wolfsokta> Thanks Under, that's an interesting idea that we should continue to discuss in the community. You also mentioned the existing website.
[15:10] It would need to be something where everyone with a QT has a vote
[15:10] think his computer went to sleep again :-/
[15:10] I agree UJP
[15:10] with the website
[15:10] No that’s ico jargon — any development fund tied to code would have to be centralized and would therefor fail
[15:11] ^
[15:11] ^
[15:11] ^
[15:11] dashes model for funding seems to be pretty decentralized
[15:11] community voting etc
[15:11] Once you have a dev fund tied to code then who gets to run it? Who mediates disputes?
[15:11] oh well another discussion
[15:11] Dash has a CEO
[15:12] <@wolfsokta> Yeah, let's keep discussing in the community spaces.
[15:12] Dash does have a good model. It's in my top ten.
[15:12] having the burn go to a dev fund is absolute garbage
[15:12] These dev chats should be more target than broad general discussions — changing the entire nature of the coin and it’s economics is best discussed in the RIPs or other means
[15:13] <@wolfsokta> Yup, let's move on.
[15:13] just becuase existing implementation are garbage doesnt mean that all possible future governance options are garbage
[15:13] <@wolfsokta> To discussing the website scenario mentioned by under.
[15:13] the website needs work. would be best if it could be migrated to github as well.
[15:13] What about this: Anyone can issue a vote once the voting feature has been added, for a cost. The vote would be what the coins could be used for.
[15:14] features for the site that need work are more user friendly links to binaries
[15:14] <@wolfsokta> We investigated how bitcoin has their website in Github to make it easy for contributors to jump in.
[15:14] that means active maintenance of the site instead of its current static nature
[15:15] <@wolfsokta> I really like how it's static html, which makes it super simple to host/make changes.
[15:15] the static nature isn’t due to interface it’s due to no contributors
[15:15] no contribution mechanism has been offered
[15:15] github hosted would allow that
[15:16] We used to run the Bitcoin website from the foundation & the GitHub integration seemed to cause some issues
[15:16] its doesnt necessarily have to be hosted by github but the page source should be on github and contributions could easily be managed and tracked
[15:17] for example when a new release is dropped, the ability for the downlaods section to have platform specific easy links to the general installers is far better for general adoption than pointing users to github releases
[15:18] <@wolfsokta> How do people currently contribute to the existing website?
[15:18] they dont?
[15:18] We did that and it was a complete pain to host and keep working — if someone wants to volunteer to do that work hey can surely make the website better and continually updated — but they could do that in Wordpress also
[15:19] I’d say keep an eye out for volunteers and maybe we can get a group together who can improve the site
[15:19] == digitalvap0r-xmr [[email protected]/web/cgi-irc/kiwiirc.com/ip.67.255.25.134] has joined #ravencoin-dev
[15:19] And they can decide best method
[15:20] I host the source for the explorer on github and anyone can spin it up instantly on a basic aws node. changes can be made to interface etc, and allow for multilingual translations which have been offered by some community members
[15:20] there are models that work. just saying it should be looked at
[15:20] i gotta run thank you all for your contributions
[15:20] <@wolfsokta> I feel we should explore the source for the website being hosted in GitHub and discuss in our next dev meeting.
[15:21] <@Chatturga> Thanks Under!
[15:21] == under [[email protected]/web/freenode/ip.72.200.168.56] has quit [Quit: Page closed]
[15:21] <@wolfsokta> Thanks, we also need to drop soon.
[15:21] There is no official site so why care. Someone will do better than the next if RVN is worth it anyway. That's already the case.
[15:21] <@wolfsokta> Let's do 10 mins of open Q&A
[15:22] <@wolfsokta> Go...
[15:23] <@Chatturga> Beuller?
[15:24] No questions ... just a comment that the devs and community are great and I'm happy to be a part of it
[15:24] I think everyone moved to discord. I'll throw this out there. How confident is the dev team that things will be ready for oct 31st?
[15:24] <@wolfsokta> Alright! Thanks everybody for joining us today. Let's plan to get back together as a dev group in a couple of weeks.
[15:25] thanks block!
[15:25] <@wolfsokta> Urgo, very confident
[15:25] Please exclude trolls from discord who havent read the whitepaper
[15:25] great :)
[15:25] "things" will be ready..
[15:25] Next time on discord right?
[15:25] woah why discord?
[15:25] some of the suggestions here are horrid
[15:25] this is better less point
[15:25] == blondfrogs [[email protected]/web/freenode/ip.185.245.87.219] has quit [Quit: Page closed]
[15:25] Assets are working well on testnet. Plan is to get as much as we can safely test by Sept 30 -- this includes dev contributions. Oct will be heavy testing and making sure it is safe.
[15:26] people
[15:26] <@wolfsokta> Planning on same time, same IRC channel.
[15:26] == BW_ [[email protected]/web/freenode/ip.138.68.243.202] has quit [Quit: Page closed]
[15:26] @xmr any in particular?
[15:27] (or is "here" discord?)
[15:27] Cheers - Tron
[15:27] "Cheers - Tron" - Tron
submitted by Chatturga to Ravencoin [link] [comments]

QuarkChain Testnet 2.0 Mining.

QuarkChain Testnet 1.0 was built based on standardized blockchain system requirements, which included network, wallet, browser, and virtual machine functionalities. Other than the fact that the token was a test currency, the environment was completely compatible with the main network. By enhancing the communication efficiency and security of the network, Testnet 2.0 further improves the openness of the network. In addition, Testnet 2.0 will allow community members (other than citizens or residents of the United States) to contribute directly to the network, i.e. running a full node and mining, and receive testnet tokens as rewards.
QuarkChain Testnet 2.0 will support multiple mining algorithms, including two typical algorithms: Ethash and Double SHA256, as well as QuarkChain’s unique algorithm called Qkchash – a customized ASIC-resistant, CPU mining algorithm, exclusively developed by QuarkChain. Mining is available both on the root chain and on shards due to QuarkChain’s two-layered blockchain structure. Miners can flexibly choose to mine on the root chain with higher computing power requirements or on shards based on their own computing power levels. Our Goal By allowing community members to participate in mining on Testnet 2.0, our goal is to enhance QuarkChain’s community consensus, encourage community members to participate in testing and building the QuarkChain network, and gain first-hand experience of QuarkChain’s high flexibility and usability. During this time, we hope that the community can develop a better understanding about our mining algorithms, sharding technologies, and governance structures, etc. Furthermore, this will be a more thorough challenge to QuarkChain’s design before the launch of mainnet! Thus, we sincerely invite you to join the Testnet 2.0 mining event and build QuarkChain’s infrastructure together!
Today, we’re pleased to announce that we are officially providing the CPU mining demo to the public (other than citizens and residents of the United States)! Everyone can participate in our mining event, and earn tQKC, which can be exchanged to real rewards by non-U.S. persons after the launch of our mainnet. Also, we expect to upgrade our testnet over time, and expect to allow GPU mining for Ethash, and ASIC mining for Double SHA256 in the future. In addition, in the near future, a mining pool that is compatible with all mining algorithms of QuarkChain is also expected to be supported.
We hope all the community members can join in with us, and work together to complete this milestone! 2 Introduction to Mining Algorithms 2.1 What is mining? Mining is the process of generating the new blocks, in which the records of current transactions are added to the record of past transactions. Miners use software that contribute their mining power to participate in the maintenance of a blockchain. In return, they obtain a certain amount of QKC per block, which is called coinbase reward. Like many other blockchain technologies, QuarkChain adopts the most widely used Proof of Work (PoW) consensus algorithm to secure the network.
A cryptographically-secure PoW is a costly and time-consuming process which is difficult to solve due to computation-intensity or memory intensity but easy for others to verify. For a block to be valid it must satisfy certain requirements and hash to a value less than the current target threshold. Reverting a block requires recreating all successor blocks and redoing the work they contain, which is costly.
By running a cluster, everyone can become a miner and participate in the mining process. The mining rewards are proportional to the number of blocks mined by each individual.
2.2 Introduction to QuarkChain Algorithms and Mining setup According to QuarkChain’s two-layered blockchain structure and Boson consensus, different shards can apply different consensus and mining algorithms. As part of the Boson consensus, each shard can adjust the difficulty dynamically to increase or decrease the hash power of each shard chain.
In order to fully test QuarkChain testnet 2.0, we adopt three different types of mining algorithms” Ethash, Double SHA256, and Qkchash, which is ASIC resistant and exclusively developed by QuarkChain founder Qi Zhou. These first two hash algorithms correspond to the mining algorithms dominantly conducted on the graphics processing unit (GPU) and application-specific integrated circuits (ASIC), respectively.
I. Ethash Ethash is the PoW mining algorithm for Ethereum. It is the latest version of earlier Dagger-Hashimoto. Ethash is memory intensive, which makes it require large amounts of memory space in the process of mining. The efficiency of mining is basically independent of the CPU, but directly related to memory size and bandwidth. Therefore, by design, building Ethash ASIC is relatively difficult. Currently, the Ethash mining is dominantly conducted on the GPU machines. Read more about Ethash: https://github.com/ethereum/wiki/wiki/Ethash
II. Double SHA256 Double SHA256 is the PoW mining algorithms for Bitcoin. It is computational intensive hash algorithm, which uses two SHA256 iterations for the block header. If the hash result is less than the specific target, the mining is successful. ASIC machine has been developed by Bitmain to find more hashes with less electrical power usage. Read more about Double SHA256: https://en.bitcoin.it/wiki/Block_hashing_algorithm
III. Qkchash Originally, Bitcoin mining was conducted on the CPU of individual computers, with more cores and greater speed resulting in more profitability. After that, the mining process became dominated by GPU machines, then field-programmable gate arrays (FPGA) and finally ASIC, in a race to achieve more hash rates with less electrical power usage. Due to this arms race, it has become increasingly harder for prospective new miners to join. This raises centralization concerns because the manufacturers of the high-performance ASIC are concentrated in a small few.
To solve this, after extensive research and development, QuarkChain founder Dr. Qi Zhou has developed mining algorithm — Qkchash, that is expected to be ASIC-resistant. The idea is motivated by the famous date structure orders-statistic tree. Based on this data structure, Qkchash requires to perform multiple search, insert, and delete operations in the tree, which tries to break the ASIC pipeline and makes the code execution path to be data-dependent and unpredictable besides random memory-access patterns. Thus, the mining efficiency is closely related to the CPU, which ensures the security of Boston consensus and encourges the mining decentralization.
Please refer to Dr. Qi’s paper for more details: https://medium.com/quarkchain-official/order-statistics-based-hash-algorithm-e40f108563c4
2.3 Testnet 2.0 mining configuration Numbers of Shards: 8 Cluster: According to the real-time online mining node The corresponding mining algorithm is Read more about Ethash with Guardian: https://github.com/QuarkChain/pyquarkchain/wiki/Ethash-with-Guardian)
We will provide cluster software and the demo implementation of CPU mining to the public. Miners are able to arbitrarily select one shard or multiple shards to mine according to the mining difficulty and rewards of different shards. GPU / ASIC mining is allowed if the public manages to get it working with the current testnet. With the upgrade of our testnet, we will further provide the corresponding GPU / ASIC software.
QuarkChain’s two-layered blockchain structure, new P2P mode, and Boson consensus algorithm are expected tobe fully tested and verified in the QuarkChain testnet 2.0. 3 Mining Guidance In order to encourage all community members to participate in QuarkChain Testnet 2.0 mining event, we have prepared three mining guidances for community members of different backgrounds.
Today we are releasing the Docker Mining Tutorial first. This tutorial provides a command line configuration guide for developers and a docker image for multiple platforms, including a concise introduction of nodes and mining settings. Follow the instructions here: Quick Start with QuarkChain Mining.
Next we will continue to release: A tutorial for community members who don’t have programming background. In this tutorial, we will teach how to create private QuarkChain nodes using AWS, and how to mine QKC step by step. This tutorial is expected to be released in the next few days. Programs and APIs integrated with GPU / ASIC mining. This is expected to allow existing miners to switch to QKC mining more seamlessly. Frequently Asked Questions: 1. Can I use my laptop or personal computer to mine? Yes, we will provide cluster software and the demo implementation of CPU mining to the public. Miners will be able to arbitrarily select one shard or multiple shards to mine according to the work difficulty and rewards of different shards. 2. What is the minimum requirements for my laptop or personal computer to mine? Please prepare a Linux or MacOs machine with public IP address or port forwarding set up. 3. Can I mine with my GPU or an ASIC machine? For now, we will only be providing the demo implementation of CPU mining as our first step. Interested miners/developers can rewrite the corresponding GPU / ASIC mining program, according to the JSON RPC API we provided. With the upgrade of our testnet, we expect to provide the corresponding GPU / ASIC interface at a later date. 4. What is the difference among the different mining algorithms? Which one should I choose? Double SHA256 is a computational intensive algorithm, but Ethash and Qkchash are memory intensive algorithms, which have certain requirements on the computer’s memory. Since currently we only support CPU mining, the mining efficiency entirely depends on the cores and speed of CPU. 5. For testnet mining, what else should I know? First, the mining process will occupy a computer’s memory. Thus, it is recommended to use an idle computer for mining. In Testnet 2.0 settings, the target block time of root chain is 60 seconds, and the target block time of shard chain is 10 seconds. The mining is a completely random process, which will take some time and consume a certain amount of electricity. 6. What are the risks of testnet mining? Currently our testnet is still under the development stage and may not be 100% stable. Thus, there would be some risks for QuarkChain main chain forks in testnet, software upgrades and system reboots. These may cause your tQKC or block record to be lost despite our best efforts to ensure the stability and security of the testnet.
For more technical questions, welcome to join our developer community on Discard: https://discord.me/quarkchain. 4 Reward Mechanism Testnet 2.0 and all rewards described herein, including mining, are not being offered and will not be available to any citizens or residents of the United States and certain other jurisdictions. All rewards will only be payable following the mainnet launch of QuarkChain. In order to claim or receive any of the following rewards after mainnet launch, you will be required to provide certain identifying documentation and information about yourself. Failure to provide such information or demonstrate compliance with the restrictions herein may result in forfeiture of all rewards, prohibition from participating in future QuarkChain programs, and other sanctions.
NO U.S. PERSONS MAY PARTICIPATE IN TESTNET 2.0 AND QUARKCHAIN WILL STRICTLY ENFORCE THIS VIA OUR KYC PROCEDURES. IF YOU ARE A CITIZEN OR RESIDENT OF THE UNITED STATES, DO NOT PARTICIPATE IN TESTNET 2.0. YOU WILL NOT RECEIVE ANY REWARDS FOR YOUR PARTICIPATION.
4.1 Mining Rewards
  1. Prize Pool A total of 5 million QKC prize pool have been reserved to motivate all miners to participate in the testnet 2.0 mining event. According to the different mining algorithms, the prize pool is allocated as follows:
Total Prize Pool: 5,000,000 QKC Prize Pool for Ethash Algorithm: 2,000,000 QKC Prize Pool for Double SHA256 Algorithm: 1,000,000 QKC Prize Pool for Qkchash Algorithm: 2,000,000 QKC
The number of QKC each miner is eligible to receive upon mainnet launch will be calculated on a pro rata basis for each mining algorithm set forth above, based on the ratio of sharded block mined by each miner to the total number of sharded block mined by all miners employing such mining algorithm in Testnet 2.0.
  1. Early-bird Rewards To encourage more people to participate early, we will provide early bird rewards. Miners who participate in the first month (December 2018, PST) will enjoy double points. This additional point reward will be ended on December 31, 2018, 11:59pm (PST).
4.2 Bonus for Bug Submission: If you find any bugs for QuarkChain testnet, please feel free to create an issue on our Github page: https://github.com/QuarkChain/pyquarkchain/issues, or send us an email to [email protected]. We may provide related rewards based on the importance and difficulty of the bugs.
4.3 Reward Rules: QuarkChain reserves the right to review the qualifications of the participants in this event. If any cheating behaviors were to be found, the participant will be immediately disqualified from any rewards. QuarkChain further reserves the right to update the rules of the event, to stop the event/network, or to restart the event/network in its sole discretion, including the right to interpret any rules, terms or conditions. For the latest information, please visit our official website or follow us on Telegram/Twitter. About QuarkChain QuarkChain is a flexible, scalable, and user-oriented blockchain infrastructure by applying blockchain sharding technology. It is one of the first public chains that successfully implemented state sharding technology for blockchain in the world. QuarkChain aims to deliver 100,000+ on-chain TPS. Currently, 14,000+ peak TPS has already been achieved by an early stage testnet. QuarkChain already has over 50 partners in its ecosystem. With flexibility, scalability, and usability, QuarkChain is enabling EVERYONE to enjoy blockchain technology at ANYTIME and ANYWHERE.
Testnet 2.0 and all rewards described herein are not being and will not be offered in the United States or to any U.S. persons (as defined in Regulation S promulgated under the U.S. Securities Act of 1933, as amended) or any citizens or residents of countries subject to sanctions including the Balkans, Belarus, Burma, Cote D’Ivoire, Cuba, Democratic Republic of Congo, Iran, Iraq, Liberia, North Korea, Sudan, Syria, Zimbabwe, Central African Republic, Crimea, Lebanon, Libya, Somalia, South Suda, Venezuela and Yemen. QuarkChain reserves the right to terminate, suspend or prohibit participation of any user in Testnet 2.0 at any time.
In order to claim or receive any rewards, including mining rewards, you will be required to provide certain identifying documentation and information. Failure to provide such information or demonstrate compliance with the restrictions herein may result in termination of your participation, forfeiture of all rewards, prohibition from participating in future QuarkChain programs, and other actions.
This announcement is provided for informational purposes only and does not guarantee anyone a right to participate in or receive any rewards in connection with Testnet 2.0.
Note: The use of Testnet 2.0 is subject to our terms and conditions available at: https://quarkchain.io/testnet-2-0-terms-and-conditions/
more about qurakchain: Website: https://quarkchain.io/cn/ Facebook: https://www.facebook.com/quarkchainofficial/ Twitter: https://twitter.com/Quark_Chain Telegram: https://t.me/quarkchainio
submitted by Rahadsr to u/Rahadsr [link] [comments]

Groestlcoin Release September 2018

Introduction

As always, the past 3 months since 22nd June have been crazy busy. The bears might still be around, but the show must go on and of course has not slowed the Groestlcoin development team in the slightest. Here’s a quick overview of what has already happened since the last release: - Integrated into the bitbns exchange, with the ability to buy Groestlcoin directly with the Indian Rupee. - Groestlcoin Rebrand Vote – Whilst there was much talk and push for a rebrand vote, the overall result was almost unanimously in favour of keeping our unique and conversation-starting name. With just 83 votes to Rebrand, and 2577 votes to No Rebrand. Thank you for all who voted, the funds raised are being used to fund ongoing hosting and development costs. - Integrated into the Cryptobridge exchange. Cryptobridge is a popular decentralised exchange where you always hold the private keys to your funds, only YOU have access to them. - Groestlcoin has been added to SimpleSwap – Groestlcoin can now be swapped with over 100 other cryptocurrencies, without signing up! - Groestlcoin has been added to UnoDax, one of the leading cryptocurrency exchanges in India, with TUSD, BTC and INR trading pairs. - Groestlcoin has been added to SwapLab.cc, where you can buy Groestlcoin using Bitcoin and over 50 other altcoins. Purchasing with VISA/Mastercard is coming VERY SOON. Discussed later: - Groestlcoin has been listed on #3 largest exchange in the world on volume, Huobi Global! More on this to come further on in the announcements. - Groestlcoin has been added to the Guarda Multi-Currency Wallet. - Groestlcoin has been added to Melis Multi-Device, Multi-Account, Multi-Platform, Multi-Signature advanced wallet! Already this list is far more than most other cryptocurrencies have achieved in the past 3 months. But this is just the tip of the iceberg of what has been developed.

What's been Happening?

GRSPay Released

We are so excited for this, that it has it's own separate reddit thread. Head over there now at https://www.reddit.com/groestlcoin/comments/9ikr5m/groestlcoin_releases_grspay/? to see more on this!
https://www.melis.io/assets/logo-navbar-4b6f0d372f15b2446d3fa4c68f346e4fb08ee113941186cee58fd6135f3f8b7d.svg

Melis Wallet

The the most advanced wallet for Bitcoin, Bitcoin Cash, Litecoin and now Groestlcoin.
With Melis you have the complete control of your bitcoins and private keys, you can define spending limits policies and make use of two or more factors authentication. Melis is open source, published on GitHub.

How Melis Works?

You can create as many accounts as you want. An account is a part of your wallet that can be customised to your requirements. You can choose how many co-signers are required to spend funds. The accounts are completely independent and act like separate wallets from each other but can be accessed via the same details. A core feature of Melis is the ability to set a ‘primary’ device. With this you can set an account as ‘Secure’ so it is only viewable (and accessible at all) from the Primary device. You can have a savings account hidden from the outside world whilst also having your ‘spending’ funds available on the go. With Melis you can create a multi-signature account between N people, where up to N signatures are required to sign a transaction, choosing if any of those should be mandatory.
Core Features:
https://guarda.co/assets/images/1PGo4ID.svg?1537791124643

Guarda Wallet

Safer than ever! Desktop Light Wallet - Anonymous and fast!
With Guarda Multi-currency Desktop Light Wallet you don’t need to register. Guarda has no access to your private keys or funds. You can receive, send, store, buy and exchange cryptocurrencies in complete anonymity and safety. All these features are available on Linux, Windows or MacOS. Choose the one that suits you!
More info about Guarda wallet on www.guarda.co
https://holytransaction.com/images/logo.png

Integrated into HolyTransaction

What is HolyTransaction?

HolyTransaction gives users access to the crypto world with a universal cryptocurrency wallet and instant exchange.

Features

For more information, visit Holy Transaction here.
https://www.groestlcoin.org/wp-content/uploads/2018/09/next-grs-groestlcoin.jpg

Integrated into NEXT Wallet

What is NEXT?

NEXT is a modern, next-generation stylish open-source Desktop wallet.

Features

For more information, visit NextWallet here.
https://blockchainfinancial.com/mediaserve2018/09/admin-06143647-bcf_logo_vec_256x256.png

Integrated into Blockchain Financial

What is Blockchain Financial?

Blockchain Financial is a set of web based services for individuals and companies that want to make things happen with the Cryptocurrencies Ecosystem. - For those that don't know anything about cryptocurrencies, we offer tools that will let them receive, send and operate with an assortment of coins. - For those that are already riding the wave, we offer tools that will let them do all those things that they weren't able to do.

Blockchain Financials mission

We're not here to reinvent the wheel. We're here to make it run smoother for you, and we provide some of the most useful services you'll find on the internet, made in a way that is easy to understand and use on a daily basis. In short, we're a bunch of people that claim to be Crypto Evangelists. We strongly believe in cryptocurrencies, and our main promise is to push them up so more people get involved and take all the advantages they offer.

More information from Blockchain Financial

Back in 2014, the world was taken by storm when Facebook approved the first cryptocurrencies tipping apps. The first was for Dogecoin, and the second was for multiple coins.
The project was hosted on whitepuma.net, and persisted for almost two years, built up a massive user community and gave a home to Bitcoin, Litecoin, Dogecoin and dozens of other bitcoin-based altcoins.
After very active months, the tipping hype started to fade away. Then, the developers decided to jump into the next stage: bringing not only tipping, but also mining and a widget that could be embedded on websites to allow everyone to accept payments. Sadly, the work was never completed because the project started to require an unsustainable amount of resources. Then, in a painful decision, a shutdown was announced by December 2015.
A couple of months after whitepuma.net was closed, the source code was released by its creator as Open Source on GitHub. But it wasn't maintained.
Now, some of the original members of the dev and admin teams gathered up with a handful of the WhitePuma's elite users, and decided to make something good with the best pieces of the old source code. That, with fresh new ideas and the power of the BardCanvas engine, synthesized the core of Blockchain Financial.
More info about Blockchain Financial wallet on .
For more information, visit [Blockchain Financial](www.blockchainfinancial.com)
https://www.huobi.com/image/logo.aeb4723.svg

Groestlcoin Listed on Huobi

Who are Huobi?

Huobi was founded in China and is now based in Singapore, with offices in Hong Kong, South Korea, Japan and the North America, currently sitting #3 in volume on Coinmarketcap. Huobi is a great leap forward for our growing presence in Asia and we are very excited to be listed here!
You can find the official Huobi announcement here.

Groestlcoin Core v2.16.3 - Please Update ASAP

A new major Groestlcoin Core version 2.16.3 is now available for download which includes both a Denial of Service component and a critical inflation vulnerability, so it is recommended to upgrade to it if you are running a full Groestlcoin node or a local Groestlcoin Core wallet.
v2.16.3 is now the official release version of Groestlcoin Core. This is a new major version release with a very important security updates. It is recommended to upgrade to this version as soon as possible. Please stop running versions of Groestlcoin Core affected by CVE-2018-17144 ASAP: These are 2.13.3 and 2.16.0.
As a result in this, all exchanges and services have been asked to upgrade to this version, so please be patient if wallets go in to maintenance mode on these services.

What's new in version v2.16.3?

This is a major release of Groestlcoin Core fixing a Denial of Service component and a critical inflation vulnerability (https://nvd.nist.gov/vuln/detail/CVE-2018-17144) exploitable by miners that has been discovered in Groestlcoin Core version 2.13.3 and 2.16.0. It is recommended to upgrade to 2.16.3 as soon as possible. If you only occasionally run Groestlcoin Core, then it's not necessary to run out and upgrade it right this second. However, you should upgrade it before you next run it. If you know anyone who is running an older version, tell them to upgrade it ASAP. Stored funds are not at risk, and never were at risk. At this time we believe over half of the Groestlcoin hashrate has upgraded to patched nodes. We are unaware of any attempts to exploit this vulnerability. However, it still remains critical that affected users upgrade and apply the latest patches to ensure no possibility of large reorganizations, mining of invalid blocks, or acceptance of invalid transactions occurs.

The Technicals

In Groestlcoin Core 2.13.3, an optimization was added (Bitcoin Core PR #9049) which avoided a costly check during initial pre-relay block validation that multiple inputs within a single transaction did not spend the same input twice which was added in 2012 (Bitcoin Core PR #443). While the UTXO-updating logic has sufficient knowledge to check that such a condition is not violated in 2.13.3 it only did so in a sanity check assertion and not with full error handling (it did, however, fully handle this case twice in prior to 2.1.0.6). Thus, in Groestlcoin Core 2.13.3, any attempts to double-spend a transaction output within a single transaction inside of a block will result in an assertion failure and a crash, as was originally reported. In Groestlcoin Core 2.16.0, as a part of a larger redesign to simplify unspent transaction output tracking and correct a resource exhaustion attack the assertion was changed subtly. Instead of asserting that the output being marked spent was previously unspent, it only asserts that it exists. Thus, in Groestlcoin Core 2.16.0, any attempts to double-spend a transaction output within a single transaction inside of a block where the output being spent was created in the same block, the same assertion failure will occur. However, if the output being double-spent was created in a previous block, an entry will still remain in the CCoin map with the DIRTY flag set and having been marked as spent, resulting in no such assertion. This could allow a miner to inflate the supply of Groestlcoin as they would be then able to claim the value being spent twice.
Groestlcoin would like to publicly thank Reddit user u/Awemany for finding CVE-2018-17144 and reporting it (https://lists.linuxfoundation.org/pipermail/bitcoin-core-dev/2018-Septembe000064.html). You deserve gratitude and appreciation from cryptoworld, and you have ours. If you want to support him for his work, please consider donating to him on his bitcoin cash address: bitcoincash:qr5yuq3q40u7mxwqz6xvamkfj8tg45wyus7fhqzug5
http://i.imgur.com/3YhyNZK.png

Groestlcoin Electrum-GRS 3.2.2 - Ledger & Trezor Edition

What is Electrum-GRS?
Electrum-GRS is a lightweight "thin client" groestlcoin wallet Windows, MacOS and Linux based on a client-server protocol. Its main advantages over the original Groestlcoin client include support for multi-signature wallets and not requiring the download of the entire block chain.

Changes:

http://i.imgur.com/3YhyNZK.png

Electrum-GRS Mobile Android

What is Electrum-GRS Mobile?

Electrum-grs is a lightweight "thin client" groestlcoin wallet Android based on a client-server protocol. Its main advantages over the original Groestlcoin client include support for multi-signature wallets and not requiring the download of the entire block chain.

Changes

Groestlcoin EasyVanity Released

Groestlcoin EasyVanity is a Windows app is built from the ground-up in C# and makes it easier than ever before to create your very own bespoke Groestlcoin address(es), even whilst not connected to the internet! You can even generate multiple keys with the same prefix and leave it on overnight whilst your CPU or GPU collects and stores these addresses locally.
If you're tired of the random, cryptic addresses generated by regular groestlcoin clients, then Groestlcoin EasyVanity is the right choice for you to create a more personalized address.

Features

• Ability to continue finding keys after first one is found • Includes warning on startup if connected to the internet • Ability to output keys to a text file (And shows button to open that directory) • Ability to make your match case sensitive (Where possible) • Show and hide the private key with a simple toggle switch, and copy the private key straight to your clipboard • Show full output of commands • Includes statistics whilst the application is running • Ability to choose between Processor (CPU) and Graphics Card (GPU) • Automatically detects 32 or 64 bit systems • Features both a Light and Dark Material Design inspired Themes • EasyVanity's search is probabilistic, and the amount of time required to find a given pattern depends on how complex the pattern is, the speed of your computer, and whether you get lucky. • EasyVanity includes components to perform address searching on your CPU (vanitygen) and your OpenCL-compatible GPU (oclvanitygen). Both can be built from source, and both are included in the Windows binary package. • Prefixes are exact strings that must appear at the beginning of the address. When searching for prefixes, Easyvanity will ensure that the prefix is possible, and will provide a difficulty estimate. • The percentage displayed just shows how probable it is that a match would be found in the session so far. If it finds your address with 5% on the display, you are extremely lucky. If it finds your address with 92% on the display, you are unlucky. If you stop EasyVanity with 90% on the display, restart it, and it finds your address with 2% on the display, your first session was unlucky, but your second session was lucky. • EasyVanity uses the OpenSSL random number generator. This is the same RNG used by groestlcoin and a good number of HTTPS servers. It is regarded as well-scrutinized. Guessing the private key of an address found by EasyVanity will be no easier than guessing a private key created by groestlcoin itself. • To speed up address generation, EasyVanity uses the RNG to choose a private key, and literally increments the private key in a loop searching for a match. As long as the starting point is not disclosed, if a match is found, the private key will not be any easier to guess than if every private key tested were taken from the RNG. EasyVanity will also reload the private key from the RNG after 10,000,000 unsuccessful searches (100M for oclvanitygen), or when a match is found and multiple patterns are being searched for. • Free software - MIT. Anyone can audit the code. • Written in C# - The code is short, and easy to review.

Groestlcoin Sentinel (Android & Blackberry) – Mainnet + Testnet

What is Sentinel?

Groestlcoin Sentinel is the easiest and fastest way to track/receive/watch payments in your offline Groestlcoin Wallets. Groestlcoin Sentinel is compatible with any standard Groestlcoin address, BIP44 XPUB (Extended Public Key) BIP49 YPUB and BIP84 ZPUB
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 particular wallet.

What's New?

The P2SH paperwallet supports creating P2SH paperwallets in bulk, keypair generation with QR codes and sweeping tool. Groestlcoin believes strongly in privacy, the live version does not collect and store IP or transaction data.
Changes
Features
The BECH32 paperwallet supports creating BECH32 paperwallets in bulk, keypair generation with QR codes and sweeping tool. Groestlcoin believes strongly in privacy, the live version does not collect and store IP or transaction data.
Features
![WebWallet](https://i.imgur.com/Z2oj7bj.png)

Groestlcoin Web Wallet Update 1.4

What is Groestlcoin Web Wallet?
Groestlcoin Webwallet is an open source, multisignature, HD Wallet and more! Webwallet is a a open source browser based Groestlcoin webwallet.
Webwallet is a playground for Groestlcoin in javascript to experiment with. It supports multisig, OP_HODL, RBF and many more. Groestlcoin believes strongly in privacy, the live version does not collect and store IP or transaction data.
Changes:
submitted by Yokomoko_Saleen to groestlcoin [link] [comments]

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