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HUOBI EXCHANGE REVIEW

HUOBI EXCHANGE REVIEW
Huobi is a Singapore-based cryptocurrency exchange. Founded in China, the company now has offices in Hong Kong, Korea, Japan and the United States. In August 2018 it became a publicly listed Hong Kong company.
Recently during early 2019, after crypto communities lost interest in ICOs (Initial Coin Offering) due to many unregistered STOs (Security Token Offering) and other projects whose aim was only to raise the funds. Exchanges adapted and gave a new dimension of the fund raising, IEO (Initial Exchange Offering).
In this regard, exchanges helped the projects by providing them a platform to raise the funds and also helped the retail investors by doing due diligence on the project on behalf of the investors. Best part of this process is, such issued tokens are listed on the same platform and exchanges helped these start ups in the process. This gave a sense of security and helped to maintain integrity with the projects and public investors.
All the top tier exchanges are participating in this movement and named such fund raising as Launchpad, Jumpstart, Spotlight, Startup etc. While Huobi came up with Huobi Prime.
Unlike other exchanges, Huobi Prime has helped varieties of start-ups.
  • It all started with a DAG based blockchain platform, Top Network.
  • A project named after the greatest scientist who made a major impact on the human lives, Newton Project. It is aimed to deliver an infrastructure for the community economy.
  • It is followed by Thunder Core. A blockchain project dreamt of decentralized future and allows anyone to build dApps on their platform.
  • Then Reserve Rights continued the legacy. It’s a protocol for stable currencies with three kinds of tokens RSV, RSR and collateral tokens.
  • Akropolis - a protocol to explore the informal economy and help the people with DeFi. It was one of it’s kind which was competitive enough to seek the help from the Huobi.
  • Later a social digital currency, Emogi secured a place to be the next Prime project.
  • Recently, Whole Network - A consensus, co-creation, and win-win behavioral value network had the opportunity to feature as a 7th Prime project.
However, each of the Prime project is different from the other in the list. One must admit, it is a basket with mixed fruits. From DAG to Currency to dApp platform to stable coin protocol to DeFi protocol to digital currency to blockchain phone. Huobi has covered a rich list of projects in this journey.

https://preview.redd.it/8z08lbq3qls41.png?width=800&format=png&auto=webp&s=34de122d950f32feb46df82cdce290221e1572be

(This chart presents the information based on the price of the each token on 2nd October. However it may vary marginally as price of the cryptocurrencies are volatile in nature)
Trading Options
Many centralized exchanges serve as the sole, centralized market maker. In contrast, Huobi also allows you to trade over the counter (OTC). This means that you can buy and sell cryptocurrencies peer-to-peer on Huobi. Even though this option exists on the exchange, it has yet to gain adoption from traders. Various commenters have said that there is a lack of OTC offers. Still, this is still an innovative technical feature.

If you are a margin trader, Houbi has a separate platform specifically for this. You can access this by going to the margin tab in the header. The amount of leverage you can have varies from coin-to-coin. For example, BTC is around 3x. Compared to other margin trading platforms, this is low. Nonetheless, it is an attractive option for potential users.

In December 2018, Huobi Derivative Market issued BTC contracts and ETH contracts (including weekly, bi-weekly and quarterly, respectively), and flexible leverages, including 1x, 5x, 10x and 20x. In the future, more digital currencies will be issued to meet various investment demands.
Meaning “currency” in Mandarin Chinese, Huobi consistently ranks as one of the world’s top ten largest exchanges by trade volume. In this article, we look at everything you need to know as a potential Huobi user. Let’s examine fees, fund security, customer experience and more.

User Interface and Mobile App

Available on iOS and Android, the Huobi mobile app features most of the functionalities available on the web platform. You can even complete tasks like account registration and verification directly via the app. In Google Play, the Huobi Global app has an average rating of 4.1 stars out of 3,730 reviews. However, in December 2018 and January 2019, some users have said that the Android app won’t let them login due to an error with Captcha. On the Apple App Store, Huobi boasts an average rating of 4.9 stars out of over 4,800 reviews.

Trading Options

Many centralized exchanges serve as the sole, centralized market maker. In contrast, Huobi also allows you to trade over the counter (OTC). This means that you can buy and sell cryptocurrencies peer-to-peer on Huobi. Even though this option exists on the exchange, it has yet to gain adoption from traders. Various commenters have said that there is a lack of OTC offers. Still, this is still an innovative technical feature.

If you are a margin trader, Houbi has a separate platform specifically for this. You can access this by going to the margin tab in the header. The amount of leverage you can have varies from coin-to-coin. For example, BTC is around 3x. Compared to other margin trading platforms, this is low. Nonetheless, it is an attractive option for potential users.

In December 2018, Huobi Derivative Market issued BTC contracts and ETH contracts (including weekly, bi-weekly and quarterly, respectively), and flexible leverages, including 1x, 5x, 10x and 20x. In the future, more digital currencies will be issued to meet various investment demands.

Huobi offers a margin trading option.

Security

Compared to other exchanges, Huobi continues to excel from a security perspective. Many top exchanges suffer from large-scale hacks, with varying results in terms of trading volume afterward. In 2015, a Bitstamp hacker withdrew 12,000 BTC from Huobi. However, this issue did not relate to the security of Huobi. Huobi reported a DDOS attack in 2015 but this did not cause a security breach. According to one review, an individual user lost USDT and EOS on Huobi. This reviewer states that the problem was caused by a technical error with Huobi’s 2FA. One comment suggests that it was the result of a phishing scam.

Huobi claims that its risk controls have been developed by the likes of Goldman Sachs. The exchange stores around 98 percent of funds in cold wallets. Moreover, Huobi now utilizes a decentralized exchange structure to prevent DDOS attacks. The exchange even has a User Protection Fund Initiative. Twenty percent of net revenue that the exchanges gains from trades will go to this fund, which it will use to buy back Huobi Token (HT). It also has a service called Huobi Security Reserve. As part of this, the exchange plans to store 20,000 BTC for insurance. This is a preventative measure that will help Huobi reimburse users in the case of any future hacks.

Huobi Fees

Huobi has a 0.2 percent fee that applies to both market makers and takers for amounts between $0 and $5,000,000 over the course of a 30-day period. In comparison, other top exchanges like Binance have 0.1 percent fees. Meanwhile, GDAX has 0.3 percent fees.

In January 2019, Huobi Global launched a tiered fee structure that significantly reduces fees for higher volume traders. This is relatively competitive when compared to other exchanges. Users also have the option to reduce trading fees on Huobi by becoming a VIP member. This involves paying a monthly payment of HT, which varies depending on the membership level (1-5).

Like most exchanges Huobi has no fees on deposits. However, Huobi does have withdrawal fees and minimums that vary from coin-to-coin. For example, withdrawing Bitcoin (BTC) costs 0.001 BTC, with a minimum withdrawal amount of 0.01 BTC. For Tether (USDT), the flat fee is 5 USDT and minimum withdrawal amount is 20 USDT. Overall, this means that Huobi fees are generally higher than most exchanges for lower withdrawal amounts. A few exceptions exist. For example, TUSD has a withdrawal minimum of $20 but a withdrawal fee of only $2.

Withdrawal Limitations

Similar to many exchanges on the market, Huobi has withdrawal limitations based on various levels of user verification. One thing you will notice is that withdrawal amounts vary greatly depending on your citizenship. For example, if you are a citizen of China, you can’t withdraw any funds as an unverified user or with level 1 verification. This option is only available at level 2 or above. In the United States, the exchange only requires level 1 verification. However, the amounts are relatively low: a daily limit of $2,000 and a monthly limit of $10,000.

Customer Service Experience

Compared to most exchanges, Huobi has above average customer service experience. Customer support is available 24/7, and response times only take two to three hours on average. Many consider this to be a rarity in the space.

There are two main methods that you can use to reach customer support. First, you can utilize the chat app that is available directly on the Huobi trading platform. Second, you can contact the team at [[email protected]](mailto:[email protected]). If you choose this option, Huobi asks that you use the registered email address associated with your Huobi account and include your user ID.

Huobi Website: https://www.huobi.vc/en-us/topic/invited/?invite_code=3afg5
UID: 134371568
Huobi Indian Community: https://t.me/huobiglobalindia
Huobi Global Community: https://t.me/huobiglobalofficial
submitted by asheroliver to u/asheroliver [link] [comments]

r/Bitcoin recap - June 2019

Hi Bitcoiners!
I’m back with the 30th monthly Bitcoin news recap.
For those unfamiliar, each day I pick out the most popularelevant/interesting stories in Bitcoin and save them. At the end of the month I release them in one batch, to give you a quick (but not necessarily the best) overview of what happened in bitcoin over the past month.
You can see recaps of the previous months on Bitcoinsnippets.com
A recap of Bitcoin in May 2019
Adoption
Development
Security
Mining
Business
Research
Education
Regulation & Politics
Archeology (Financial Incumbents)
Price & Trading
Fun & Other
submitted by SamWouters to Bitcoin [link] [comments]

Getting Started With the Tipbot FAST - A Guide for Non-Techy New Users!

Hello, and welcome to IOTA. *insert futuristic music here
 
You're probably here because you just received a tip. Congratulations. You must have done something wonderful. The tip you've received is a special type of crypto currency called 'IOTA.' IOTA was first created in 2015 when our founders realized that to really bring crypto to the masses (human and machine!) you need a way to safely send someone value or data without paying a fee, because even small fees can add up, and that fails to mimic real currency.
 
Enter IOTA.
 
The tip you received lives on reddit servers and is indexed and generated automatically using your username. You can withdraw this tip at anytime to your own private wallet. For a complete guide to the tipbot you can click here. Otherwise, let's continue.
 
If you'd like to tip someone on reddit. Format your tip inside of a comment like this:
 
+1000 iota iotatipbot
 
An 'Iota' is the lowest unit. If you really want to spend big you can give 1 million iota's (aka 'mega' iota) like this:
 
+1 miota iotatipbot
 
The tipbot will also reference the dollar value of your tip.
 
When you properly tip someone or receive a tip yourself you are given a list of links (these links can also be referenced on the sidebar of /iotatipbot). When you click those links it messages the bot to do that action. Just refresh your browser and then check your messages!
 
Ok let's cut to the chase. You're probably wondering. "How much money do I have!?"
 
Currently,
**1 miota is worth
$.55
$1.10
$3.85
if someone tipped you 10 miota you now have in your possession
$5.55
$11
$38.50
worth of IOTA. Play around with different amounts of IOTA and there values here. Did someone tip you 100 or a 1000 'iota'? Sorry, you have less that 1 penny.
 
So, there's a lot you can do with this new found wealth.
 
1.You can leave it in the bot and tip other users. If you tip less then $.01 in value the bot will send them the tip privately so out of courtesy we don't spam message threads.
 
2.You can withdraw your iota. This will require you to install a mobile/web/or desktop wallet. Since IOTA uses a different system then bitcoin the wallet will be a little different then a BTC wallet. Follow instructions carefully.
 
3.You can deposit to your reddit username wallet using the 'deposit' link. This is a little more complicated, especially if you don't own any crypto. You'll need to buy some ETH or BTC on an exchange with a bank transfer then send the ETH or BTC to one of our two participating exchanges Bitfinex and Binance. Hopefully in the near future we will have more ways to buy IOTA!
 
A few of you might be thinking:
 
"HEY BUDDY. I don't want to deal with any of this crap! I just want some cold hard cash!"
 
Ok, got it, no need to yell! Let's say someone tipped you a good amount and you want cash as quickly as possible. The best way to do that at this time is to open a Binance account, withdraw your IOTA directly to it, sell it for BTC, send the BTC to a mobile wallet and locate a BTC ATM near you. Finally, sell your BTC for cash at that ATM. You can also find real people to sell BTC to at meetups and localbitcoins.com. No ATM? Some exchanges allow bank transfers but this may be slower.
 
In the future we hope to have an Android/IOS wallet that you can convert your IOTA on the fly to BTC while you're driving to an ATM! Although, you might want to think twice about selling your IOTA, it may grow in value exponentially! Track it here.
 
Hope all this helped! If you're looking for more detailed help on how to set up a wallet, how to use exchanges, blockchain vs DAG, total supply, market cap, machines using IOTA (m2m) or the complete vision of IOTA. Check out the sidebar and stickied links on /iota.
 
Once again WELCOME!
 
edit 1: removed 'glorious'
 
edit 2: Bot is now private below $.01 value threshold.
 
edit 3: We also have a second tip bot functioning called 'tanglepayTipBot'
discussion thread
wiki
tip like this
tanglepay +$.05
 
Edit 4. Are you VERY new to crypto?
 
These three videos are helpful
 
L2 - The Innovation Is the Blockchain
L2 - A Primer on Crypto Currencies
Tangle vs Blockchain
submitted by JackGetsIt to Iota [link] [comments]

What is AhrvoDEEX?

Ahrvo is a $0 commission social trading platform that provides daily rankings for over 8000 stocks and ETFs. Ahrvo’s proprietary ranking system exploits and capitalizes on patterns found in the historical and projected stock market and company-specific data in order to consistency find the best stocks. Ahrvo’s patent-protected software integrates quantitative and social investing. Fostering an environment where users can make profitable trades and engage other participants within the Ahrvo community to discuss trading strategies. Ahrvo Fantasy Investing League (AFIL) awards cash prizes monthly to the top finisher in its investing competition. Participants can create public or private investing leagues to compete against family and friends. Features include real-time prices and stock alerts, Wall Street consensus data, quantitative company profiles, proprietary buy and sell signals, 300 ranked investment themes, among others. The platform is currently available on iOS and Android.
About AhrvoDEEX Company Overview Ahrvo is a financial technology company created in March 2017. Ahrvo’s proprietary multi-factor ranking system and resulting AhrvoScoresTM help investors and traders of all backgrounds discover stock market winners and make timely and profitable investment decisions among more than 8000 stocks and ETFs. Ahrvo’s proprietary equity scoring model uses predictive analytics and data mining techniques to uncover and exploit patterns found in historical and projected stock market data in order to find the best stocks. AhrvoScores are derived using the four main drivers of stock price performance -- Quality, Value, Growth, and Momentum. Each factor adjusts to stock market conditions creating consistently robust AhrvoScores. It is simple: stocks with high AhrvoScores consistently outperform the market; stocks with low scores underperform. This streamlines the stock discovery process as a group of top rated investment ideas is curated for users daily.
Problem Clearinghouses and other intermediaries cost the brokerage industry billions of dollars a year, creating bottlenecks that limit order-matching transparency and settlement speed. Wall Street lacks objectivity and often produces inaccurate equity ratings and price targets. For example, in 2017 only 5% of the 500 S&P companies were rated ‘sell’. This leaves investors and traders without a roadmap to find stocks that are suitable for investment. A study conducted in 2016 found that from 1981 to 2016 the top 10 percent of stocks analysts were most bullish (optimistic) about generally performed worse than the 10 percent of stocks analyst were bearish (pessimistic) about. In fact, an investor who bought stocks analysts were bearish on over that time period would have gained 15% in excess return over the following year relative to the stocks analysts were bullish on.
Solution AhrvoDEEX is a peer-to-peer decentralized equity exchange that enables profitable trading by using multifactor ranking systems and deep learning algorithms to create smart equity scores and price targets that streamline the decision-making process. AhrvoDEEX transaction speed is comparable to centralized exchanges and much faster than Bitcoin and Ethereum. Centralized exchanges settle in 1 to 3 seconds. Ethereum DEX transactions take ~3 minutes. Bitcoin transactions take 10 minutes to settle but can often take longer. Transactions on AhrvoDEEX settle in ~3 to 5 seconds. Ahrvo’s proprietary equity scoring model looks at over 4 dozen subfactors that are highly correlated with price performance, subsequently grouping them into four main factors. For the past ten years, our system has consistently outperformed the stock market (benchmark Russell 3000 w/dividends). The model's performance results were created by a 3rd party firm, EQM Capital LLC.
Competitive Advantage
Patent Protection Ahrvo is building the first blockchain-based decentralized equity exchanged powered by artificial intelligence. Over the past two years, Ahrvo’s management team has garnered the necessary protection for its growing suite of investing and trading solutions. Ahrvo has filed two provisional patents (March 2017/November 2018) and one utility patent (March 2018). Pending patents cover existing and upcoming products and features that are under-development or slated for release. In addition, native aspects of the network's protocol and integration of multifactor ranking systems and neural networks into a peer-to-peer equity exchange are covered.
Traditional Broker Experience An advantage of being a traditional broker instead of a tokenized exchange is the ability to custody and onboard traditional equities. Tokenized platforms frequently state, “we are only a software firm and do not participate in regulated activities such as custodial or clearing services, order execution, investment advice, asset management, and other such financial services.” We believe this is to their detriment. Ahrvo’s custodian platform will offer front and back office services for firms. By focusing on a larger market (equities vs. cryptocurrency), AhrvoDEEX growth should exceed tokenized competitors.
Competent Blockchain Developers Ahrvo is working with a seasoned team of blockchain developers. The development firm is CMMI Level 3 and ISO 9001: 2015 certified. In total, we have access to a team of 35 blockchain developers but will be working with a team of 4-5 developers initially. Their experience includes: launching public and private blockchain by forking, creating native coins, changing specifications like reward logic, inflation rate, etc., and configuring mining tools.
Infrastructure Current market participants (mainly Ravencoin and Equibit) are forks of Bitcoin. We view this as a structural impediment given the nature of the industry (high transaction volume). The consensus protocol of their blockchains is Proof of Work (POW). In POW, miners require a lot of energy to validate transactions. The implicit and explicit cost associated with bitcoin-based platforms has become apparent when transaction volumes rise with the price of the underlying cryptocurrency. Ahrvo’s blockchain will be forked from Stellar, and use Proof of Stake (POS)- a more cost-efficient and environmentally friendly consensus protocol.
EXCHANGE LIST
Binance
Kucoin
Bibox
Huobi
SECURE WALLET
Ledgerwallet
Trezor
Ellipal
submitted by icoinformation2021 to AhrvoDEEX [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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