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.
Please see ICS 1 for a description of what a standard entails.
To propose a new standard, open an issue.
To start a new standardisation document, copy the template and open a PR.
See PROCESS.md for a description of the standardisation process.
See STANDARDS_COMMITTEE.md for the membership of the core standardisation committee.
See CONTRIBUTING.md for contribution guidelines.
All standards at or past the "Draft" stage are listed here in order of their ICS numbers, sorted by category.
| Interchain Standard Number | Standard Title | Stage |
|---|---|---|
| 1 | ICS Specification Standard | N/A |
| Interchain Standard Number | Standard Title | Stage |
|---|---|---|
| 2 | Client Semantics | Candidate |
| 3 | Connection Semantics | Candidate |
| 4 | Channel & Packet Semantics | Candidate |
| 5 | Port Allocation | Candidate |
| 23 | Vector Commitments | Candidate |
| 24 | Host Requirements | Candidate |
| 25 | Handler Interface | Candidate |
| 26 | Routing Module | Candidate |
| Interchain Standard Number | Standard Title | Stage |
|---|---|---|
| 6 | Solo Machine Client | Candidate |
| 7 | Tendermint Client | Candidate |
| 9 | Loopback Client | Candidate |
| 10 | GRANDPA Client | Draft |
| Interchain Standard Number | Standard Title | Stage |
|---|---|---|
| 18 | Relayer Algorithms | Candidate |
| Interchain Standard Number | Standard Title | Stage |
|---|---|---|
| 20 | Fungible Token Transfer | Candidate |
| 27 | Interchain Accounts | Draft |
| 29 | General Relayer Incentivisation Mechanism | Candidate |
| 30 | IBC Application Middleware | Candidate |