celestia-app

celestia-app is the software used by validators and full consensus nodes on the Celestia consensus network. celestia-app is a blockchain application built using parts of the Cosmos stack:

• celestiaorg/cosmos-sdk a fork of cosmos/cosmos-sdk
• celestiaorg/celestia-core a fork of cometbft/cometbft

Diagram

                ^  +-------------------------------+  ^
                |  |                               |  |
                |  |  State-machine = Application  |  |
                |  |                               |  |   celestia-app (built with Cosmos SDK)
                |  |            ^      +           |  |
                |  +----------- | ABCI | ----------+  v
Celestia        |  |            +      v           |  ^
validator or    |  |                               |  |
full consensus  |  |           Consensus           |  |
node            |  |                               |  |
                |  +-------------------------------+  |   celestia-core (fork of CometBFT)
                |  |                               |  |
                |  |           Networking          |  |
                |  |                               |  |
                v  +-------------------------------+  v

Install

Source

1. Install Go 1.22.3

2. Clone this repo

3. Install the celestia-app CLI

   make install

Prebuilt binary

If you'd rather not install from source, you can download a prebuilt binary from the releases page.

1. Navigate to the latest release on https://github.com/celestiaorg/celestia-app/releases.

2. Download the binary for your platform (e.g. celestia-app_Linux_x86_64.tar.gz) from the Assets section. Tip: if you're not sure what platform you're on, you can run uname -a and look for the operating system (e.g. Linux, Darwin) and architecture (e.g. x86_64, arm64).

3. Extract the archive

   tar -xvf celestia-app_Linux_x86_64.tar.gz

4. Verify the extracted binary works

   ./celestia-appd --help

5. [Optional] verify the prebuilt binary checksum. Download checksums.txt and then verify the checksum:

   sha256sum --ignore-missing --check checksums.txt

   You should see output like this:

   celestia-app_Linux_x86_64.tar.gz: OK

See https://docs.celestia.org/nodes/celestia-app for more information.

Usage

# Print help
celestia-appd --help

Environment variables

Variable	Explanation	Default value	Required
CELESTIA_HOME	Home directory for the application	User home dir. Ref.	Optional

Create your own single node devnet

# Start a single node devnet
./scripts/single-node.sh

# Publish blob data to the local devnet
celestia-appd tx blob pay-for-blob 0x00010203040506070809 0x48656c6c6f2c20576f726c6421 \
	--chain-id private \
	--from validator \
	--keyring-backend test \
	--fees 21000utia \
	--yes

Note

The celestia-appd binary doesn't support signing with Ledger hardware wallets on Windows and OpenBSD.

Contributing

This repo attempts to conform to conventional commits so PR titles should ideally start with fix:, feat:, build:, chore:, ci:, docs:, style:, refactor:, perf:, or test: because this helps with semantic versioning and changelog generation. It is especially important to include an ! (e.g. feat!:) if the PR includes a breaking change.

This repo contains multiple go modules. When using it, rename go.work.example to go.work and run go work sync.

Tools

1. Install golangci-lint 1.57.0
2. Install markdownlint 0.39.0
3. Install hadolint
4. Install yamllint
5. Install markdown-link-check
6. Install goreleaser

Helpful Commands

# Get more info on make commands.
make help

# Build the celestia-appd binary into the ./build directory.
make build

# Build and install the celestia-appd binary into the $GOPATH/bin directory.
make install

# Run tests
make test

# Format code with linters (this assumes golangci-lint and markdownlint are installed)
make fmt

# Regenerate Protobuf files (this assumes Docker is running)
make proto-gen

Docs

Package-specific READMEs aim to explain implementation details for developers that are contributing to these packages. The specs aim to explain the protocol as a whole for developers building on top of Celestia.

Audits

Date	Auditor	Version	Report
2023/9/15	Informal Systems	v1.0.0-rc6	informal-systems.pdf
2023/10/17	Binary Builders	v1.0.0-rc10	binary-builders.pdf