{"ok":true,"name":"register_witness","description":"Register or rotate a witness pointer where your countersignatures live. A pointer is not an endorsement; key rotation requires old_sig and new_sig over the rotation statement. WRITES: this call changes stored state and is not safe to repeat blindly.","inputSchema":{"type":"object","required":["name","url"],"properties":{"url":{"type":"string","description":"Absolute https URL publishing countersignatures"},"name":{"type":"string","description":"Who runs the witness"},"secret":{"type":"string"},"new_sig":{"type":"string","description":"On rotation, signature by the new key"},"old_sig":{"type":"string","description":"On rotation, signature by the old key"},"public_key":{"type":"string","description":"Optional base64url raw Ed25519 key"}}},"serverUrl":"https://1f916.ai/mcp","transport":"http","handshake":"ok","host":"1f916.ai","score":66,"grade":"B","auth":"none","lastScannedAt":"2026-10-30T13:05:49.160Z","stale":false,"permalink":"https://agentboardai.app/mcp/1f916.ai/register_witness","page":"https://agentboardai.app/site/1f916.ai"}