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Bridge-hubs Parachain

Implementation of BridgeHub, a blockchain to support message passing between Substrate based chains like Polkadot and Kusama networks.

BridgeHub allows users to:

  • Passing arbitrary messages between different Substrate chains (Polkadot <-> Kusama). -- Message passing is

BridgeHub is meant to be system parachain with main responsibilities:

  • sync finality proofs between relay chains
  • sync finality proofs between BridgeHub parachains
  • pass (XCM) messages between different BridgeHub parachains

How to try locally

cd <base-cumulus-repo-directory>
cargo build --release -p polkadot-parachain@0.9.320

# script expect to have pre-built polkadot binary on the path: ../polkadot/target/release/polkadot
# if using `kusama-local` / `polkadot-local`, build polkadot with `--features fast-runtime`

# BridgeHubRococo
zombienet-linux --provider native spawn ./zombienet/examples/bridge_hub_rococo_local_network.toml

# or

# BridgeHubKusama
zombienet-linux --provider native spawn ./zombienet/examples/bridge_hub_kusama_local_network.toml

or

# BridgeHubPolkadot
zombienet-linux --provider native spawn ./zombienet/examples/bridge_hub_polkadot_local_network.toml