CoreBitcoin implements Bitcoin protocol in Objective-C and provides many additional APIs to make great apps.CoreBitcoin deliberately implements as much as possible directly in Objective-C with limited dependency on OpenSSL.This gives everyone an opportunity to learn Bitcoin on a clean codebase and enables all Mac and iOS developers to extend and improve Bitcoin protocol.Note that "Bitcoin Core" (previously known as BitcoinQT or "Satoshi client") is a completely different project.The goal is to implement everything useful related to Bitcoin and organize it nicely in a single powerful library.Pull requests are welcome.To encode/decode addresses see BTCAddress.To perform cryptographic operations, use BTCKey, BTCBigNumber and BTCCurvePoint.BTCKeychain implements BIP32 (hierarchical deterministic wallet).To fetch unspent coins and broadcast transactions use one of the 3rd party APIs: BTCBlockchainInfo (blockchain.info) or Chain-iOS (recommended).For full wallet workflow see BTCTransaction+Tests.m (fetch unspent outputs, compose a transaction, sign inputs, verify and broadcast).

For multisignature scripts usage see BTCScript+Tests.m: compose and unlock multisig output.All other files with +Tests in their name are worth checking out as they contain useful sample code.Add this to your Podfile: If you'd like to use categories, include different header: Clone this repository and build all libraries: Copy iOS or OS X framework located in binaries/iOS or binaries/OSX to your project.There are also raw universal libraries (.a) with headers located in binaries/include, if you happen to need them for some reason.Frameworks and binary libraries have OpenSSL built-in.If you have different version of OpenSSL in your project, consider using CocoaPods or raw sources of CoreBitcoin.We love Swift and design the code to be compatible with Swift.That means using modern enums, favoring initializers over factory methods, avoiding obscure C features etc.You are welcome to try using CoreBitcoin from Swift, please file bugs if you have problems.Swift is awesome to write crypto in it (due to explicit optionals, generics and first-class structs) and we would love to rewrite the entire CoreBitcoin and even relevant portions of OpenSSL in it.

Unfortunately, for a year or two it's just out of the question due to instability.And then, using Swift-only features on the API level would mean that Objective-C code wouldn't be able to use CoreBitcoin.Given that, in the medium term we will focus solely on Objective-C implementation compatible with Swift.When everyone jumps exclusively on Swift, we'll make a complete rewrite.Feel free to open issues, drop us pull requests or contact us to discuss how to do things.most profitable bitcoin mining poolFollow existing code style and use 4 spaces instead of tabs.dogecoin bitcoin forumMethods have opening braces on a new line.bitcoin cheat sheetThere's no line width limit.litecoin chart realtime

Please send your donations here: 1CBtcGivXmHQ8ZqdPgeMfcpQNJrqTrSAcG.All funds will be used only for bounties.You can also donate to a specific bounty.The amount will be reserved for that bounty and listed above.Contact Oleg to arrange that.Released under WTFPL (except for OpenSSL).Have a nice day.The Secure, Shared Bitcoin WalletSecure your bitcoin with the open source, ‑multisignature wallet from BitPay.Get CopayCopay is a true bitcoin wallet, not an account service.bitcoin copper roundsSecure your personal funds with multiple signatures, or just one.Take security into your own hands and avoid trusting third parties with your savings.bitcoin calculator with difficultyLike a joint-checking account, your Copay wallet can have multiple users.jones gear bitcoin

To send money, the group approves each transaction.Manage shared funds with friends and coworkers.Share a wallet with your child and introduce them to bitcoin.Copay makes sharing a wallet simple and secure.No more tedious address management.The Copay app securely stores multiple, distinct bitcoin wallets, allowing both business and privacy-conscious users to keep funds carefully separated.Manage personal, business, and testnet wallets easily, all without leaving the app.bitcoin loan without verificationCopay uses hierarchical-deterministic (HD) wallets, allowing for secure in-app wallet generation and backup.Press that send button with confidence.Copay is one of the first bitcoin wallets to support the full Bitcoin Payment Protocol (BIP 0070-0073).bitcoin not a ponzi schemeWhen you send money to a Payment Protocol-enabled merchant, Copay securely verifies that your payment will go to the right place.The first bitcoin wallet to bring testnet support to both iOS and Windows Phone.Copay includes native support for the Bitcoin Testnet, perfect for testing new bitcoin applications across multiple platforms.With multisignature (P2SH) and multiple wallet support, Copay makes it simple for developers to test and demo bitcoin applications without fumbling between other mobile apps.

Not only is the Copay app open source, the server is too.Enterprise and power users can take full control of their finances by deploying their own version of the Copay apps and Bitcore Wallet Service.Dozens of bitcoin developers have already contributed to Copay, and we're not finished yet.Every part of Copay, wallet and server, is available to be reviewed, improved, and developed by the community.You can follow along, discuss improvements, and join in on GitHub at bitpay/copay and bitpay/bitcore-wallet-service.Get the Copay Bitcoin WalletFind it on theiOS App StoreGet it onGoogle PlayDownload fromWindows Store Get theChrome AppAvailable forMac OS XDownload forWindowsGet it forLinux Download the latest source code from GitHub ›Prices In 
150 Currencies
Multi-Language Support
HD Wallet
 Backups
Convenient Payment Proposal Flowhttp://bither.net commits branches releases Fetching contributors Apache-2.0 Latest commit 7d32e47 Dec 19, 2016 Merge branch 'develop' Permalink README.md bither-ios Bither is a simple and secure Bitcoin wallet!