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THIS REPOSITORY HAS BEEN ARCHIVED. THE TENDERMINT SPECIFICATION IS NOW LOCATED IN THE TENDERMINT/TENDERMINT REPOSITORY.

Tendermint Spec

This repository contains specifications for the Tendermint protocol.

There are currently two implementations of the Tendermint protocol, maintained by two separate-but-collaborative entities: One in Go, maintained by Interchain GmbH, and one in Rust, maintained by Informal Systems.

Data Structures

Consensus Protocol

P2P and Network Protocols

  • The Base P2P Layer: multiplex the protocols ("reactors") on authenticated and encrypted TCP connections

P2P Messages

  • Peer Exchange (PEX): gossip known peer addresses so peers can find each other
  • Block Sync: gossip blocks so peers can catch up quickly
  • Consensus: gossip votes and block parts so new blocks can be committed
  • Mempool: gossip transactions so they get included in blocks
  • Evidence: sending invalid evidence will stop the peer

ABCI

  • ABCI: Details about interactions between the application and consensus engine over ABCI

ABCI++

  • ABCI++: Specification of interactions between the application and consensus engine over ABCI++

RFC

  • RFC: RFCs describe proposals to change the spec.

ProtoBuf

  • Proto: The data structures of the Tendermint protocol are located in the proto directory. These specify P2P messages that each implementation should follow to be compatible.