rotte0/ibc

Interchain Standards (ICS) for the Cosmos network & interchain ecosystem.

IBC

Synopsis

This repository is the canonical location for development and documentation of the inter-blockchain communication protocol (IBC).

It shall be used to consolidate design rationale, protocol semantics, and encoding descriptions for IBC, including both the core transport, authentication, & ordering layer (IBC/TAO) and the application layers describing packet encoding & processing semantics (IBC/APP).

Contributions are welcome. See CONTRIBUTING.md for contribution guidelines.

See ROADMAP.md for a public up-to-date version of our roadmap.

What is IBC?

For a high-level explanation of what IBC is and how it works, please read this blog post.

Interchain Standards

All standards at or past the "Draft" stage are listed here in order of their ICS numbers, sorted by category.

Meta

Interchain Standard Number	Standard Title	Stage
1	ICS Specification Standard	N/A

Core

Interchain Standard Number	Standard Title	Stage	Implementations
2	Client Semantics	Candidate	ibc-go
3	Connection Semantics	Candidate	ibc-go
4	Channel & Packet Semantics	Candidate	ibc-go
5	Port Allocation	Candidate	ibc-go
23	Vector Commitments	Candidate	ibc-go
24	Host Requirements	Candidate	ibc-go
25	Handler Interface	Candidate	ibc-go
26	Routing Module	Candidate	ibc-go

Client

Interchain Standard Number	Standard Title	Stage	Implementations
6	Solo Machine Client	Candidate	ibc-go
7	Tendermint Client	Candidate	ibc-go
8	Wasm Client	Draft
9	Loopback Client	Draft
10	GRANDPA Client	Draft

Relayer

Interchain Standard Number	Standard Title	Stage	Implementations
18	Relayer Algorithms	Finalised	go-relayer, rust-relayer, ts-relayer

App

Interchain Standard Number	Standard Title	Stage	Implementations
20	Fungible Token Transfer	Candidate	ibc-go
27	Interchain Accounts	Candidate	ibc-go
28	Cross-Chain Validation	Draft
29	General Relayer Incentivisation Mechanism	Candidate	ibc-go
30	IBC Application Middleware	N/A	N/A
31	Cross-Chain Queries	Draft	N/A
721	Non-Fungible Token Transfer	Candidate	bianjieai

Translations

The Interchain Standards are also translated into the following languages:

• Chinese