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Codebases

We co-developed the Bitcoin staking integration with Babylon Labs. All the codebases are open-sourced, including:

  • babylon: Babylon node with BTC staking integration support for OP-stack chains
  • finality-provider: The finality provider program
  • btc-staker: The BTC staker program
  • babylon-contract: The CosmWasm contracts, including the finality contract for OP-stack chains.
  • finality-gadget: The finality gadget program. It can be used by the L2 chain and its ecosystem projects as an SDK or run as a standalone daemon program.
  • optimism: The fork of OP Stack codebase that installs finality-gadget.
  • finality-explorer: A simple web application to allow users to query transaction finality status.