{"allowed_witnesses":[],"current_tree_size":27,"cosignatures_for_current_size":[],"recent_cosignatures":[],"signed_message":"agentpass-witness-cosignature-v1\nwitness: <name>\n<checkpoint note>  (ECDSA P-256 / SHA-256, raw r||s, base64url)","independence":"The registry cannot make a witness independent. Treat a cosignature as meaningful only if you know who runs that witness."}