Bitcoin Wallet Console Commands - Carnes Meireles

Groestlcoin September 2019 Development Release/Update!

For a more interactive view of changes, click here
In our current world; bordering on financial chaos, with tariff wars, Brexit and hyperinflation rife, you can count on Groestlcoin to consistently produce innovation that strikes to take the power away from the few and into the many, even after a full five and a half years of solid development.
Here is what the team has already announced in the last 3 months since the last development update:

What's Being Released Today?

Groestl Nodes

What am I?

Groestl Nodes aims to map out and compare the status of the Groestlcoin mainnet and testnet networks. Even though these networks share the same protocol, there is currently no way to directly compare these coins in a single location. These statistics are essential to evaluate the relative health of both networks.


Source - Website

Groestlcoin Transaction Tool

What am I?

This is a tool for creating unsigned raw Groestlcoin transactions and also to verify existing transactions by entering in the transaction hex and converting this to a human-readable format to verify that a transaction is correct before it is signed.



Groestlcoin AGCore

What am I?

AGCore is an Android app designed to make it easier to run a Groestlcoin Core node on always-on Android appliances such as set-top boxes, Android TVs and repurposed tablets/phones. If you are a non-technical user of Groestlcoin and want an Android app that makes it easy to run a Groestlcoin Core node by acting as a wrapper, then AG Core is the right choice for you.

What's Changed?

Source - Download

Groestlcoin Electrum

What's Changed?

Android Electrum-Specific

OSXWindowsWindows StandaloneWindows PortableLinux - Android
Server SourceServer Installer SourceClient SourceIcon SourceLocale Source

Android Wallet – Including Android Wallet Testnet

What am I?

Android Wallet is a BIP-0032 compatible hierarchial deterministic Groestlcoin Wallet, allowing you to send and receive Groestlcoin via QR codes and URI links.

V7.11.1 Changes

Groestlcoin Java Library SourceSource - DownloadTestnet Download


What am I?

Groestlwallet is designed to protect you from malware, browser security holes, even physical theft. With AES hardware encryption, app sandboxing, keychain and code signatures, groestlwallet represents a significant security advance over web and desktop wallets, and other mobile platforms.
Simplicity is groestlwallet's core design principle. Because groestlwallet is "deterministic", your balance and entire transaction history can be restored from just your recovery phrase.

iOS 0.7.3 Changes

Android v89 Changes

iOS SourceAndroid Source - Android DownloadiOS Download

Groestlcoinomi Released

What am I?

Groestlcoinomi is a lightweight thin-client Groestlcoin wallet based on a client-server protocol.

Groestlcoinomi v1.1 Desktop Changes

Groestlcoinomi Android v1.6 Changes

Groestlcoin Java Library SourceAndroid Source
Android DownloadWindows DownloadMac OS DownloadLinux Download

Groestlcoin BIP39 Tool

What's Changed?

Source - Download
submitted by Yokomoko_Saleen to groestlcoin [link] [comments]

Neblio: Ahead of Roadmap and a Blockbuster Breakout in 2018

Neblio is a Proof of Stake (PoS) Blockchain as a Service (BaaS) platform designed and developed to provide enterprise solutions, which uses the Neblio token, NEBL. The Neblio blockchain is a fork of Novacoin, an older coin with origins in 2013, using the Script algorithm. The Neblio team is focused on simplicity within business adoption, starting with RESTful API integration. The Neblio APIs can be used to build applications, or integrated with existing ones, that interact with the Nebio blockchain by storing and accessing transactions and information.
Focus on Simplicity
The Nebio team's focus on simplicity is evident in their development to date. Neblio's Docker setup can be completed in less than one minute, and the Neblio Raspberry Pi wallet can be installed using a single command. Neblio offers an optional bootstrap of their blockchain, called QuickSync, which greatly reduces the time required to setup nodes. Every 24 hours, a compressed snapshot of the Neblio blockchain is uploaded to the team's Github, which is as secure as downloading the entire blockchain via network peers. In the event that blocks were modified by a bad actor, new blocks would be rejected and wouldn't be added onto the chain, resulting in no impact to Neblio's network security. QuickSync can greatly reduce the amount of time required to set up multiple Neblio nodes, as the blockchain would only be required to be downloaded once, rather than once per node. A Bootstrapped wallet setup is an established technology previously used, most notably, with Bitcoin.
Accelerated Roadmap Development
The Neblio roadmap is lofty, desiring to be a blockchain for "worldwide opportunities" and "bring blockchain to the mainstream". Their wide scope is tempered by a narrow focus -- on simplicity. The team is executing quickly, with little hype, and is AHEAD of their roadmap. They have completed multiple wallets, including Windows/MacOS/Linux staking core wallets,and the non-staking Electrum wallets. Coupled with Docker, and the low-energy Raspberry Pi staking wallet, Neblio offers a wide variety of wallet support for their blockchain. Recently, the Neblio team has announced the first API call on the Neblio blockchain, which was expected to occur in 1Q2018. Despite being early in the API development phase, the team once again demonstrated an aggressive attack on the roadmap, establishing confidence that they'll meet, and again succeed, their projected milestone date. Neblio will develop their open-source APIs in multiple languages, including Python, Go, JavaScript, Ruby, .NET, Java, and Node.js. One thing that is most impressive regarding the Neblio roadmap was the team's humble approach to improvement. Multiple instances in their roadmap reference iterative customer feedback and customer-driven design requirements. Additionally, Neblio makes mention in their roadmap of targeting small businesses, and not just Fortune 500 companies, which opens up a huge market that is often glossed over in cryptocurrency news articles. A market where, according to the US Government, small businesses make up 99.7% of United States employers, and almost half of private-sector output. The cryptocurrency market for platforms will not be limited to a single platform, as Ethereum, Lisk, Nem, NEO, EOS, Ardor, or Stratis will not meet the needs of every company looking for blockchain solutions. Marketing to potential clients will begin in 2Q2018, which will help to drive initial Neblio adoption. Execution will drive the long-term success in this space -- and the token price.
The Team
The Neblio team has experience with software development, with the co-founder and lead developer, Eddy Smith working for a Fortune 500 before his current role. The other founder, Ann has notable relevant experience in the space. In the ICO, the team opted not to set aside tokens for the team or future development, and purchased their own tokens to use instead, a decision that showed their dedication to the success of the project. All unsold tokens were burned. Additionally, the Neblio network was fully operational prior to the token sale date. NEBL tokens were immediately deposited to an address, at which point tokens could immediately be exchanged and staked. The Neblio team is growing, currently at four members, including a marketing advisor and developer. They are in a hiring process -- where they have been clear that they prize quality over quantity. The team is approachable, and are involved daily with the Neblio Slack.
Technical Discriminators
The Neblio network offers 10% yearly staking rewards. This is very good, especially considering traditional investments. The high reward locks up assets, encourages holding, and decreases token velocity which influences the long-term, realized, value of tokens. The 10% staking is a true technical and economic discriminator for the blockchain.
Neblio's scalable transactional throughput is ~20-35 Tx/sec, which is superior to Ethereum and Bitcoin.
And lastly, the narrow focus of completing the RESTful APIs allows the team to capitalize on doing a single thing well, reducing the risk (including development costs), while allowing for future expansion of their blockchain, like to sidechains or other developing technologies.
Token Mechanics
Neblio has a very low circulating and total supply, 12.6M and 13.3M, respectively. A large number of the tokenholders stake their tokens on the network, which further reduces liquidity and can result in high volatility and significant price fluctuations. However, this does add a significant upside to the existing price. For example, if Neblio had the market cap of Ardor, a token outside of the top 25, each Neblio token would be $70. It's been clear in the past year that platforms demand a premium, where most of the top tokens by marketcap are platforms, including Ethereum, Lisk, Nem, NEO, EOS, and Stratis. The highest volume of Neblio can be found on the Cryptopa exchange, with other markets found on Kucoin, HitBTC, and OEX. Neblio did very strongly in a Binance voting, and despite strong rumors, hasn't been listed there yet.
Neblio is set apart by their narrow focus to create a working product with simplicity as a design consideration from the beginning. Their small token supply and 10% staking rewards create a strong incentive for tokens to be accumulated, which can generate economic benefits for existing token holders. Neblio has multiple catalysts in 2018, which if successful, will propel this blockchain into the public eye.
Disclosure: I am/we are long NEBL, STRAT.
I wrote this post myself, and it expresses my own opinions. I am not receiving compensation for it. I have no business relationship with any coin/platform that is mentioned in this post.
submitted by XCBatman to CryptoCurrency [link] [comments]

Qtum GitHub Development Guide

(translated from original on WeChat
This article will serve as a quick start guide for Qtum developers to develop projects that use Qtum on GitHub.
What is Qtum?
The official developer described Qtum as a decentralized blockchain project that supports smart contracts based on the UTXO model integrated into Qtum's unique Account Abstraction Layer.
Qtum Developer
No matter what product or technical tool you want to develop with Qtum's technical tools, you'll find development tools that will help you get the most out of it. This article will guide you through the basic setup, including setting up a local Qtum network, and will give you a number of tool features, such as showing how to connect to the test network for more detailed testing, how to connect to the main network when preparing for deployment, with QRC20 tokens for example, using a smart contract to issue tokens.
For Qtum developers, the most useful part is how to use the Qtum JS library to manipulate the parts of the smart contract, and even more cool is to use React to create a simple DAPP part.
Read through the entire guide for development in the Qtum environment.
I believe that after using Qtum's series of tools, you will be more interested in exploring Qtum's content and projects for developers. Let's take a look at some of the key GitHub projects that Qtum offers.
Qtum GitHub Developer Project
The following Qtum development tools are very useful for the development of any Qtum DAPP or Qtum-related projects.
Qtum Boilerplate Project
An introductory project created by Qtum developers to help you get started creating DAPPs on Qtum. Follow the code repository instructions to gain insight into many aspects of Qtum and what it means to create a Qtum DAPP.
Qtum Docker
For developers involved in Qtum development, the Qtum docker project is very important. The Qtum team created a docker image so that all developers can run the Qtum network locally, and any operating system is available from the docker hub.
So, if you have already downloaded docker, congratulations, you are already advanced. (If you need help setting up your Qtum regtest environment, you can see the instructions in the connection guide, which explains in detail how to set up the environment:
regtest is easy to use and provides a better understanding of how Qtum works, and whether it's a smart contract or DAPP, it's a key tool for testing projects.
Developed as a Qtum version of Ethereum’s remix, Qmix is ​​a browser-based IDE that lets you write the right smart contracts.
Not only can you write contracts and ensure correctness, but you can also deploy and interact directly with the Qmix UI. In order to be able to deploy and interact with smart contracts, you need to connect to the Qtum network. Click on the application's help options to find instructions on how to connect your Qmix to your local regtest network. Once connected, you can thoroughly test smart contracts before actually deploying to the main network. If you plan to develop Qtum DAPPs, you will most likely need to be familiar with this tool.
Qmix was developed as a Qtum contract, so the GitHub repository for this project is not on Qtum's GitHub, but here:
Qtum JS
Qtum JS is a JavaScript library specifically developed for Qtum Smart Contracts that is very useful for DAPP development. Use this tool to build an application and interact with a smart contract, or you can interact directly with Qtum RPC using a framework you like (such as react or angular). Find all the operations that use the Qtum JS library in the documentation.
Qtum JS Wallet
Similar to Qtum JS, this is a simplified library that helps you build a lean wallet. It extracts from another Qtum project and uses the Qtum explorer API to get information about the Qtum blockchain. It's a simple yet powerful library that meets all your needs for your wallet.
Qtum API
The Qtum API is another very useful tool that you might use in any application. Use the API to get information from the Qtum network that your project might need. On the GitHub page, you can see a complete list of all API calls and the responses they return. For example, Qtum explorer uses this tool and can also use it as a sample project.
Qtum project under development
If you are interested in participating in the ongoing Qtum project, do your best to learn more. If you find any problems, you can submit a GitHub issue, and look forward to discovering and resolving and providing pull requests, which will help us grow with Qtum.
Other Qtum projects worth studying
Qtum Electrum Lightweight Qtum Wallet.
Qtum Enterprise (QtumX) is currently under development and is Qtum's enterprise environment, so group companies can run their own alliance chains.
Qtum Explorer This is the explorer's GitHub repository discussed earlier in this article.
Qtum Solar is a prototype project that Qtum is working on to deploy smart contracts.
The Qtum x86 team is about to launch exciting new features. The project is a virtual machine that emulates an x86 processor, thus allowing users to write and compile smart contracts on popular programming languages, rather than being limited to Solidity.
Qtum Lightning is the Qtum implementation of Bitcoin Lightning Network
Qtum Portal is a web server that allows you to run third-party DAPPS
Qtum IOS wallet is a Qtum wallet repository built for iOS.
Qtum android wallet is a Qtum wallet repository that can be found in the Google Store.
submitted by realJB395 to Qtum [link] [comments]

Our Open Source Contributions

Let me start telling you about one of the crypto currency world’s best kept open secret and most advanced Bitcoin software: libbitcoin.
Libbitcoin was started by Amir Taaki as the first reimplementation of the Bitcoin protocol. Nowadays, it’s maintained by serial entrepreneur Eric Voskuil, who developed it into a full fledged Bitcoin development ecosystem with software libraries, the most advanced command line tool to do anything Bitcoin related, a standalone full node as Bitcoin Core alternative as well as a high performance blockchain query server.
“Libbitcoin is a multipurpose bitcoin library targeted towards high end use. An ideal backend to build fast implementations on top: mobile apps, desktop clients and server API’s. The library places a heavy focus around asychronicity, speed and availability.” — Especially the blockchain query server libbitcoin-server (or bs) is extremely valuable for the ecosystem: many wallets and other services either use slow, outdated JavaScript-based implementations or, even worse, centralised closed source APIs from service providers. Using a centralised API to build your application means trusting a 3rd party with the privacy of your users as well as having the risk that it might get shutdown any time on no or very short notice (something that happened before).
We plan to use libbitcoin-server as our node and backend for all our apps and services. Talking with Eric about our plans, he immediately suggested to make all of libbitcoin coin-agnostic, so Feathercoin and Bitcoin can equally benefit from the improvements developers are making. This means to have all the Feathercoin specifics as part of the runtime settings. The end result is having one source code base, one development community and even only one binary for Bitcoin, Feathercoin, Litecoin and other cryptocurrencies (if someone is willing to do the little implementation work that is needed). This is certainly a goal we consider worth working on.
Electrum Another critical piece of software for the Bitcoin ecosystem is the Electrum wallet. Electrum is the number one desktop wallet with all features one can possibly imagine (SPV, HW wallet support, multi-signature, replace-by-fee, etc), so it was an obvious choice for us to make it also available for Feathercoin.
Yet, we have bigger plans for Electrum: We are working on a new desktop wallet called Swan, which uses Electrum as basis. With Swan, we are creating a more user- & beginner friendly desktop wallet for Bitcoin and Feathercoin built on a stable, battle-tested source. Just as with libbitcoin, we plan to not diverge from upstream and contribute most of our work and improvements directly to Electrum itself and have only our own, frontend specific changes in our repository.
A small teaser from our designer Frederic Berghmans One of our first big contributions to the ecosystem is combining those two great software pieces: we are implementing libbitcoin-server as a backend option in Electrum. To achieve this goal, we’ve already implemented a Python library, pylibbitcoin, which talks to libbitcoin-server. This library can be used by anyone, is not depending on Electrum or libbitcoin source code and is fully open source. Right now, we are working on integrating it into Electrum and while doing so, our developer Harm also refactored the full networking module of Electrum.
Some might not like it but this shows that (Bitcoin-based) Altcoins can contribute to Bitcoin ecosystem development.
We see ourselves as part of the greater Bitcoin development ecosystem. We always try to contribute and work upstream instead of reinventing the wheel, which benefits all Bitcoin-based cryptocurrencies. We do that already with libbitcoin and Electrum and plan to contribute to more open source projects in the future.
submitted by quaidbrown to ICOAnalysis [link] [comments]

[For Hire] Software Engineer / Cryptography System Expert

Willing to review any proposal, including those not even related to cryptocurrency.
Experienced with many regions of software development with over 11 years of industry experience:
Proficient in many languages:
Also well-versed in cryptographic systems and many of the intricacies of Bitcoin, Litecoin, and other cryptocurrency: HD wallet construction - especially for secure backend payment systems, integration with Electrum's APIs for quick tools (such as automated bulk payments).
Also have experience with smart cards and some with hardware wallets.
I pride myself on swift turnaround upon job acceptance :)
submitted by torfair to jobs4litecoins [link] [comments]

[For Hire] Software Engineer / Cryptography System Expert

Willing to review any proposal, including those not even related to cryptocurrency.
Experienced with many regions of software development with over 11 years of industry experience:
Proficient in many languages:
Also well-versed in cryptographic systems and many of the intricacies of Bitcoin, Litecoin, and other cryptocurrency: HD wallet construction - especially for secure backend payment systems, integration with Electrum's APIs for quick tools (such as automated bulk payments).
Also have experience with smart cards and some with hardware wallets.
I pride myself on swift turnaround upon job acceptance :)
submitted by torfair to Jobs4Bitcoins [link] [comments]

How to install Electrum portable version How to Restore Your AML Beta Wallet From a Backup Adding API keys to Jonny Blockchain Blockchain Websocket API - JavaScript How to use Blockchain Wallet API v2

On the payment page, you will be given a Bitcoin wallet address which Next, create a public folder with an file inside of it, and Thank their functionality you can create bitcoin wallet, a tool for investors, bitcoin game in form of libraries for its API (Python, Java, NET, Ruby, PHP, Node . Sewa Mobil PontianakBitcoin Core Export All Private Keys! Does Electrum provides any API? If yes, please let me know if there's any dedicated documentation available. Also, does Electrum support Bitcoin Cash? Purpose: I want to integrate Electrum into my application for wallet service and seeding capabilities. I'm planning to run full node for BCH and BTC. And the last package for this new effort to get electrum into fedora. Sorry for the delay as I was stuck on fedora 21 for quite a while, but a new computer, enough power for virtualization got me running on packaging this stuff again. Use all wallets with caution. You should never share private keys, seed, or wallet file with anyone. Windows Only Instructions. Run Electrum_BTCP-P_0.1.0-win.exe --testnet --nossl from the command line or add --testnet --nossl to an exe shortcut inside the target section. Cross-Platform Instructions Electrum Bitcoin Wallet. Contribute to shuaiLiWang/electrum development by creating an account on GitHub.

[index] [26861] [32294] [24362] [26937] [7931] [25881] [3850] [17900] [3771] [22809]

How to install Electrum portable version

This video explains you in detail how to install electrum bitcoin wallet. you can use the above link to download the wallet. In this tutorial I show how you can use JavaScript to stream live data from the bitfinex Bitcoin exchange using their websocket API. Building Bitcoin Websites . Video tutorial on using blockchain ... Choose your Bitcoin Wallet - An in-depth review of BitcoinQT, Electrum and Multibit - Duration: 27:32. Secure Your Wallet 24,297 views How to set up wallet service API. Blockchain Wallet API V2 My Book: Backing up Your bitcoins using the Electrum Bitcoin Wallet - Duration: ... JAVA - How To Design Login And Register Form In Java Netbeans - Duration: 44:14. 1BestCsharp blog Recommended for you.