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https://github.com/demining/rust-bitcoin-google-colab

Rust Bitcoin library Google Colab
https://github.com/demining/rust-bitcoin-google-colab

bitcoin bitcoin-api bitcoin-core bitcoin-payment bitcoin-transaction bitcoin-wallet colab colab-notebook colab-notebooks colab-tutorial colaboratory google-colab google-colab-notebook google-colab-tutorial google-colaboratory google-colaboratory-notebooks

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Rust Bitcoin library Google Colab

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README 

        
[![Status](https://travis-ci.org/rust-bitcoin/rust-bitcoin.png?branch=master)](https://travis-ci.org/rust-bitcoin/rust-bitcoin)



-------------------------

### Run rust-bitcoin-Google-Colab



https://colab.research.google.com/drive/1OShIMVcFZ_khsUIBOIV1lzrqAGo1gfm_?usp=sharing



-------------------------



Library with support for de/serialization, parsing and executing on data

structures and network messages related to Bitcoin and other blockchain-based

currencies.



[Documentation](https://docs.rs/bitcoin/)



Supports (or should support)



* De/serialization of Bitcoin protocol network messages

* De/serialization of blocks and transactions

* Script de/serialization

* Private keys and address creation, de/serialization and validation (including full BIP32 support)

* Pay-to-contract support as in Appendix A of the [Blockstream sidechains whitepaper](https://www.blockstream.com/sidechains.pdf)



For JSONRPC interaction with Bitcoin Core, it is recommended to use [rust-jsonrpc](https://github.com/apoelstra/rust-jsonrpc)

which uses the underlying [strason library](https://github.com/apoelstra/strason)

which parses decimal numbers as strings, preventing precision errors.



# Usage



To use rust-bitcoin, just add the following to your Cargo.toml.



```toml

[dependencies]

bitcoin = "0.12"

```



# Known limitations



## Consensus



This library **must not** be used for consensus code (i.e. fully validating

blockchain data). It technically supports doing this, but doing so is very

ill-advised because there are many deviations, known and unknown, between

this library and the Bitcoin Core reference implementation. In a consensus

based cryptocurrency such as Bitcoin it is critical that all parties are

using the same rules to validate data, and this library is simply unable

to implement the same rules as Core.



Given the complexity of both C++ and Rust, it is unlikely that this will

ever be fixed, and there are no plans to do so. Of course, patches to

fix specific consensus incompatibilities are welcome.



## Documentation



Currently the [documentation](https://www.wpsoftware.net/rustdoc/bitcoin/)

is very sparse. Patches to add usage examples and to expand on existing

docs would be extremely appreciated.



# Policy on Altcoins/Altchains



Patches which add support for non-Bitcoin cryptocurrencies by adding constants

to existing enums (e.g. to set the network message magic-byte sequence) are

welcome. Anything more involved will be considered on a case-by-case basis,

as the altcoin landscape includes projects which [frequently appear and

disappear, and are poorly designed anyway](https://download.wpsoftware.net/bitcoin/alts.pdf)

and keeping the codebase maintainable is a large priority.



In general, things that improve cross-chain compatibility (e.g. support for

cross-chain atomic swaps) are more likely to be accepted than things which

support only a single blockchain.



## Release Notes



I will try to document all breaking changes here so that people upgrading will know

what they need to change.



### 0.11



Remove `num` dependency at Matt's request; agree this is obnoxious to require all

downstream users to also have a `num` dependency just so they can use `Uint256::from_u64`.



### 0.12



* The in-memory blockchain was moved into a dedicated project rust-bitcoin-chain.



* Removed old script interpreter



* A new optional feature "bitcoinconsenus" lets this library use Bitcoin Core's native

script verifier, wrappend into Rust by the rust-bitcoinconsenus project. 

See `Transaction::verify` and `Script::verify` methods.



* Replaced Base58 traits with `encode_slice`, `check_encode_slice`, from and `from_check` functions in the base58 module.



* Un-reversed the Debug output for Sha256dHash



* Add bech32 support



* Support segwit address types



### 0.13



* Move witnesses inside the `TxIn` structure



* Add `Transaction::get_weight()`



* Update bip143 `sighash_all` API to be more ergonomic



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