Roadmap

Char is open source prototype now. The useful split is simple: what works today, what is hardening, and what is still research.

Today

• BTC bonds and stake-weighted operator selection.
• Domains, ballots, and vote payloads.
• Signed attestation chains anchored to Bitcoin headers.
• Merkle payload commitments and inclusion proofs.
• DecisionRoll and ImpossibleRoll artifacts.
• RPCs for domains, votes, attestations, and roll lookup.

Start here if you want to build against it: /docs/tutorials/hello-char

Hardening next

• A smaller SDK for domains, votes, and roll verification.
• External verifier libraries so consumers do not need to run verification only inside a node.
• Cleaner RPCs for latest finalized ballots and no-quorum outcomes.
• Bond tooling alignment between wallet flows and index recognition.
• Parameters, limits, and test coverage.

Future work

• BitVM enforcement paths.
• Charmed VM checkpointing.
• Operator rewards and incentive mechanics.

Builder guidance

• Build consumers first: poll rolls, persist outcomes, and handle reorgs.
• Keep payloads versioned and minimal.
• Pin to a specific node version until SDK and RPC compatibility are stable.