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CKB Transaction Firewall CKB Transaction Firewall
Currently deployed on Testnet, not mainnet.

CKB Transaction Firewall

A CKB lock script and governed blacklist registry, with SDKs and a CLI to check transactions before signing and to manage registry updates on-chain.
How to use Wire the live registry, run pre-flight checks, and walk governance updates.
Overview What the firewall does and how the lock, registry, SDKs, and CLI fit together.
Why this exists Why blacklist enforcement belongs in the lock script, not only in app code.
Architecture How consensus enforcement, pre-flight checks, and registry state connect.
CLI quickstart Inspect the registry and prepare governance transactions from the terminal.
Testnet deployment Canonical script IDs, registry cell data, and how tools consume them.
Error codes Stable codes returned by the contracts and SDKs.