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@@ -27,25 +25,22 @@ Used by over a million wallet users and the backbone for almost all Bitcoin web
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## Should I use this in production?
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If you are thinking of using the master branch of this library in production, **stop**.
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Master is not stable; it is our development branch, and [only tagged releases may be classified as stable](https://github.com/bitcoinjs/bitcoinjs-lib/tags).
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## Installation
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`npm install bitcoinjs-lib`
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```bash
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npm install bitcoinjs-lib
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```
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## Setup
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### Node.js
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var bitcoin = require('bitcoinjs-lib')
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```javascript
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var bitcoin =require('bitcoinjs-lib')
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```
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### Browser
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If you're familiar with how to use browserify, ignore this and proceed normally.
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These steps are advisory only, and may not be necessary for your application.
**NOTE**: If you expect this library to run on an iOS 10 device, ensure that you are using [[email protected]](https://github.com/feross/buffer/pull/155) or greater.
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### Flow
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Definitions for [Flow typechecker](https://flowtype.org/) are available in flow-typed repository.
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[You can either download them directly](https://github.com/flowtype/flow-typed/blob/master/definitions/npm/bitcoinjs-lib_v2.x.x/flow_v0.17.x-/bitcoinjs-lib_v2.x.x.js) from the repo, or with the flow-typed CLI
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The definitions are complete and up to date with version 2.2.0. The definitions are maintained by [@runn1ng](https://github.com/runn1ng).
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## Examples
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The below examples are implemented as integration tests, they should be very easy to understand. Otherwise, pull requests are appreciated.
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-[Generate a random address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/d853806/test/integration/basic.js#L9)
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-[Generate an address from a SHA256 hash](https://github.com/bitcoinjs/bitcoinjs-lib/blob/d853806/test/integration/basic.js#L20)
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-[Generate an address and WIF for Litecoin](https://github.com/bitcoinjs/bitcoinjs-lib/blob/d853806/test/integration/basic.js#L30)
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-[Import an address via WIF](https://github.com/bitcoinjs/bitcoinjs-lib/blob/d853806/test/integration/basic.js#L43)
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-[Create a Transaction](https://github.com/bitcoinjs/bitcoinjs-lib/blob/d853806/test/integration/basic.js#L50)
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-[Create an OP RETURN transaction](https://github.com/bitcoinjs/bitcoinjs-lib/blob/d853806/test/integration/advanced.js#L24)
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-[Create a 2-of-3 multisig P2SH address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/d853806/test/integration/multisig.js#L9)
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-[Spend from a 2-of-4 multisig P2SH address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/d853806/test/integration/multisig.js#L25)
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-[Generate a single-key stealth address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/d853806/test/integration/stealth.js)
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-[Generate a dual-key stealth address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/d853806/test/integration/stealth.js)
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-[Create a BIP32 wallet external address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/8e1c69183f74acce06d6e35b614e504b18bb04e1/test/integration/bip32.js)
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-[Create a BIP44, bitcoin, account 0, external address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/8e1c69183f74acce06d6e35b614e504b18bb04e1/test/integration/bip32.js)
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-[Recover a BIP32 parent private key from the parent public key and a derived non-hardened child private key](https://github.com/bitcoinjs/bitcoinjs-lib/blob/8e1c69183f74acce06d6e35b614e504b18bb04e1/test/integration/bip32.js)
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-[Recover a Private key from duplicate R values in a signature](https://github.com/bitcoinjs/bitcoinjs-lib/blob/d853806/test/integration/crypto.js)
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-[Create a CLTV locked transaction where the expiry is past](https://github.com/bitcoinjs/bitcoinjs-lib/blob/d853806/test/integration/cltv.js#L36)
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-[Create a CLTV locked transaction where the parties bypass the expiry](https://github.com/bitcoinjs/bitcoinjs-lib/blob/d853806/test/integration/cltv.js#L70)
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-[Create a CLTV locked transaction which fails due to expiry in the future](https://github.com/bitcoinjs/bitcoinjs-lib/blob/d853806/test/integration/cltv.js#L102)
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-[Use BIP39 to generate a BIP32 wallet address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/dd3e501/test/integration/bip32.js)
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The below examples are implemented as integration tests, they should be very easy to understand.
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Otherwise, pull requests are appreciated.
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Some examples interact (via HTTPS) with a 3rd Party Blockchain Provider (3PBP).
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-[Generate a random address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/addresses.js#L12)
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-[Generate an address from a SHA256 hash](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/addresses.js#L19)
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-[Import an address via WIF](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/addresses.js#L29)
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-[Generate a 2-of-3 multisig P2SH address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/addresses.js#L36)
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-[Support the retrieval of transactions for an address (3rd party blockchain)](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/addresses.js#L52)
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-[Generate a Testnet address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/addresses.js#L73)
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-[Generate a Litecoin address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/addresses.js#L83)
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-[Create a 1-to-1 Transaction](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/transactions.js#L14)
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-[Create a 2-to-2 Transaction](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/transactions.js#L28)
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-[Create (and broadcast via 3PBP) a typical Transaction](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/transactions.js#L46)
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-[Create (and broadcast via 3PBP) a Transaction with an OP\_RETURN output](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/transactions.js#L88)
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-[Create (and broadcast via 3PBP) a Transaction with a 2-of-4 multisig P2SH input](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/transactions.js#L115)
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-[Import a BIP32 testnet xpriv and export to WIF](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/bip32.js#L8)
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-[Export a BIP32 xpriv, then import it](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/bip32.js#L15)
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-[Export a BIP32 xpub](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/bip32.js#L26)
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-[Create a BIP32, bitcoin, account 0, external address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/bip32.js#L35)
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-[Create a BIP44, bitcoin, account 0, external address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/bip32.js#L50)
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-[Create a BIP49, bitcoin testnet, account 0, external address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/bip32.js#L66)
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-[Use BIP39 to generate BIP32 addresses](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/bip32.js#L83)
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-[Create (and broadcast via 3PBP) a Transaction where Alice can redeem the output after the expiry](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/cltv.js#L37)
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-[Create (and broadcast via 3PBP) a Transaction where Alice and Bob can redeem the output at any time](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/cltv.js#L71)
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-[Create (but fail to broadcast via 3PBP) a Transaction where Alice attempts to redeem before the expiry](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/cltv.js#L104)
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-[Recover a private key from duplicate R values](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/crypto.js#L14)
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-[Recover a BIP32 parent private key from the parent public key, and a derived, non-hardened child private key](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/crypto.js#L115)
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-[Generate a single-key stealth address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/stealth.js#L70:)
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-[Generate a single-key stealth address (randomly)](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/stealth.js#L89:)
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-[Recover parent recipient.d, if a derived private key is leaked (and nonce was revealed)](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/stealth.js#L105)
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-[Generate a dual-key stealth address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/stealth.js#L122)
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-[Generate a dual-key stealth address (randomly)](https://github.com/bitcoinjs/bitcoinjs-lib/blob/ae8422d/test/integration/stealth.js#L145)
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If you have a use case that you feel could be listed here, please [ask for it](https://github.com/bitcoinjs/bitcoinjs-lib/issues/new)!
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## Contributors
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Stefan Thomas is the inventor and creator of this project. His pioneering work made Bitcoin web wallets possible.
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Daniel Cousens, Wei Lu, JP Richardson and Kyle Drake lead the major refactor of the library from 0.1.3 to 1.0.0.
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Since then, many people have contributed. [Click here](https://github.com/bitcoinjs/bitcoinjs-lib/graphs/contributors) to see the comprehensive list.
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## Contributing
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We are always accepting of pull requests, but we do adhere to specific standards in regards to coding style, test driven development and commit messages.
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Please make your best effort to adhere to these when contributing to save on trivial corrections.
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### Running the test suite
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$ npm test
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$ npm run-script coverage
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```bash
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npm test
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npm run-script coverage
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```
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## Complementing Libraries
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-[BIP21](https://github.com/bitcoinjs/bip21) - A BIP21 compatible URL encoding utility library
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