https://github.com/tendermint/tendermint
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README.md
# Tendermint
[Byzantine-Fault Tolerant](https://en.wikipedia.org/wiki/Byzantine_fault_tolerance)
[State Machine Replication](https://en.wikipedia.org/wiki/State_machine_replication).
Or [Blockchain](https://en.wikipedia.org/wiki/Blockchain_(database)) for short.
[![version](https://img.shields.io/github/tag/tendermint/tendermint.svg)](https://github.com/tendermint/tendermint/releases/latest)
[![API Reference](
https://camo.githubusercontent.com/915b7be44ada53c290eb157634330494ebe3e30a/68747470733a2f2f676f646f632e6f72672f6769746875622e636f6d2f676f6c616e672f6764646f3f7374617475732e737667
)](https://godoc.org/github.com/tendermint/tendermint)
[![Go version](https://img.shields.io/badge/go-1.9.2-blue.svg)](https://github.com/moovweb/gvm)
[![Rocket.Chat](https://demo.rocket.chat/images/join-chat.svg)](https://cosmos.rocket.chat/)
[![license](https://img.shields.io/github/license/tendermint/tendermint.svg)](https://github.com/tendermint/tendermint/blob/master/LICENSE)
[![](https://tokei.rs/b1/github/tendermint/tendermint?category=lines)](https://github.com/tendermint/tendermint)
Branch | Tests | Coverage
----------|-------|----------
master | [![CircleCI](https://circleci.com/gh/tendermint/tendermint/tree/master.svg?style=shield)](https://circleci.com/gh/tendermint/tendermint/tree/master) | [![codecov](https://codecov.io/gh/tendermint/tendermint/branch/master/graph/badge.svg)](https://codecov.io/gh/tendermint/tendermint)
develop | [![CircleCI](https://circleci.com/gh/tendermint/tendermint/tree/develop.svg?style=shield)](https://circleci.com/gh/tendermint/tendermint/tree/develop) | [![codecov](https://codecov.io/gh/tendermint/tendermint/branch/develop/graph/badge.svg)](https://codecov.io/gh/tendermint/tendermint)
_NOTE: This is alpha software. Please contact us if you intend to run it in production._
Tendermint Core is Byzantine Fault Tolerant (BFT) middleware that takes a state transition machine - written in any programming language -
and securely replicates it on many machines.
For protocol details, see [the specification](/docs/spec).
## Security
To report a security vulnerability, see our [bug bounty
program](https://tendermint.com/security).
For examples of the kinds of bugs we're looking for, see [SECURITY.md](SECURITY.md)
## Minimum requirements
Requirement|Notes
---|---
Go version | Go1.9 or higher
## Install
See the [install instructions](/docs/install.rst)
## Quick Start
- [Single node](/docs/using-tendermint.rst)
- [Local cluster using docker-compose](/networks/local)
- [Remote cluster using terraform and ansible](/docs/terraform-and-ansible.rst)
- [Join the public testnet](https://cosmos.network/testnet)
## Resources
### Tendermint Core
For more, [Read The Docs](https://tendermint.readthedocs.io/en/master/).
Additional information about some - and eventually all - of the sub-projects below, can be found at Read The Docs.
### Sub-projects
* [ABCI](http://github.com/tendermint/abci), the Application Blockchain Interface
* [Go-Wire](http://github.com/tendermint/go-wire), a deterministic serialization library
* [Go-Crypto](http://github.com/tendermint/go-crypto), an elliptic curve cryptography library
* [TmLibs](http://github.com/tendermint/tmlibs), an assortment of Go libraries used internally
* [IAVL](http://github.com/tendermint/iavl), Merkleized IAVL+ Tree implementation
### Tools
* [Deployment, Benchmarking, and Monitoring](http://tendermint.readthedocs.io/projects/tools/en/develop/index.html#tendermint-tools)
### Applications
* [Cosmos SDK](http://github.com/cosmos/cosmos-sdk); a cryptocurrency application framework
* [Ethermint](http://github.com/tendermint/ethermint); Ethereum on Tendermint
* [Many more](https://tendermint.readthedocs.io/en/master/ecosystem.html#abci-applications)
### More
* [Master's Thesis on Tendermint](https://atrium.lib.uoguelph.ca/xmlui/handle/10214/9769)
* [Original Whitepaper](https://tendermint.com/static/docs/tendermint.pdf)
* [Tendermint Blog](https://blog.cosmos.network/tendermint/home)
* [Cosmos Blog](https://blog.cosmos.network)
## Contributing
Yay open source! Please see our [contributing guidelines](CONTRIBUTING.md).
## Versioning
### SemVer
Tendermint uses [SemVer](http://semver.org/) to determine when and how the version changes.
According to SemVer, anything in the public API can change at any time before version 1.0.0
To provide some stability to Tendermint users in these 0.X.X days, the MINOR version is used
to signal breaking changes across a subset of the total public API. This subset includes all
interfaces exposed to other processes (cli, rpc, p2p, etc.), but does not
include the in-process Go APIs.
That said, breaking changes in the following packages will be documented in the
CHANGELOG even if they don't lead to MINOR version bumps:
- types
- rpc/client
- config
- node
Exported objects in these packages that are not covered by the versioning scheme
are explicitly marked by `// UNSTABLE` in their go doc comment and may change at any time.
Functions, types, and values in any other package may also change at any time.
### Upgrades
In an effort to avoid accumulating technical debt prior to 1.0.0,
we do not guarantee that breaking changes (ie. bumps in the MINOR version)
will work with existing tendermint blockchains. In these cases you will
have to start a new blockchain, or write something custom to get the old
data into the new chain.
However, any bump in the PATCH version should be compatible with existing histories
(if not please open an [issue](https://github.com/tendermint/tendermint/issues)).
## Code of Conduct
Please read, understand and adhere to our [code of conduct](CODE_OF_CONDUCT.md).