paseo-chain-specs

All chain specification files are hosted directly in this repository. Download them from the main branch via the raw URLs below (they are no longer served from external storage).

Available chain specs

Each chain ships in two flavours: a full raw spec for node operators, and a light-client (.smol) checkpoint spec for smoldot-based clients. See Chain Spec Types below.

Chain	Chain ID	Para ID	Full spec	Light-client spec
Paseo (relay)	paseo	—	paseo.raw.json	paseo.raw.smol.json
Paseo Asset Hub	asset-hub-paseo	1000	zip archive — see below	paseo-asset-hub.smol.json
Paseo People	paseo-people	1004	paseo-people.raw.json	paseo-people.raw.smol.json

Download any file with wget/curl, e.g.:

wget https://raw.githubusercontent.com/paseo-network/paseo-chain-specs/main/paseo.raw.json

Asset Hub full-node spec: the full (non-smoldot) Asset Hub spec is too large to track in this repo directly and is distributed as a zip archive:

wget https://github.com/paulormart/ahpaseo-specs/raw/refs/heads/main/paseo-asset-hub-2.json.zip

Substitute-relay relaunch: Paseo has been relaunched from block 0 with a new genesis (Paseo, protocol-id pad, ss58 42). The previous chain specs — the original relay (Paseo Testnet, protocol-id pas, ss58 0) and all its system-chain specs — are archived under paseo-legacy/ for historical reference. They are not the live network; do not use them to sync the current Paseo. Additional system-chain specs for the new network will be added here as those chains are onboarded.

Chain Spec Types

This repository contains two types of chain specifications:

• Full specs (e.g., paseo.raw.json): Standard chain specification files with the full raw genesis, for most node operators.
• Light client friendly specs (e.g., paseo.raw.smol.json): Checkpoint specs (genesis state root + a warp-sync lightSyncState) optimized for light clients such as smoldot.

Contributing

Bootnode Contributions

We welcome bootnode contributions to improve network connectivity! To add your bootnode:

1. Fork this repository
2. Add your bootnode multiaddr to the bootNodes array of the appropriate chain spec file(s) — add it to both the full and light-client spec for a chain (e.g. paseo.raw.json and paseo.raw.smol.json) so the two stay in sync
3. Submit a Pull Request

Your contributions help strengthen the Paseo testnet infrastructure.