{
  "issuer": "a2ally.com",
  "url": "https://www.a2ally.com",
  "keys": [
    {
      "key_id": "key_a521921c2ba20669",
      "alg": "Ed25519",
      "public_key_pem": "-----BEGIN PUBLIC KEY-----\nMCowBQYDK2VwAyEAinQBNSxd0YmodQg1YCzttE4X9fNtHXqIrSGUWsEHblA=\n-----END PUBLIC KEY-----\n",
      "status": "current",
      "first_ledger_block": 0,
      "retired_at": null,
      "revoked_at": null
    }
  ],
  "key_pins": "https://www.a2ally.com/.well-known/a2ally-keys.json",
  "response_signatures": "RFC 9421 (label rs, tag a2ally-response) on API answers; see /.well-known/a2ally-keys.json",
  "signs": [
    "agent registration certificates",
    "ledger blocks",
    "evidence packages",
    "the A2A agent card (its A2A 1.0 fields; other members are not signed)",
    "Web Bot Auth key directory responses and webhook requests"
  ],
  "canonicalization": "JSON with object keys sorted, no whitespace",
  "agent_card_signature": "Detached JWS (alg EdDSA, kid = key_id, jku /.well-known/jwks.json) over the RFC 8785 canonical form of the card's A2A 1.0 fields, empty values dropped (false and 0 kept)",
  "ledger": "https://www.a2ally.com/v1/ledger",
  "registry": "https://www.a2ally.com/v1/registry"
}