{
  "payload": {
    "schema": "proofrail.challenge_payload.v1",
    "statement": "This packet was sealed by Talley IT LLC. Forge another that verifies against the same public key.",
    "issuer": "Talley IT LLC — CAGE 23EL9, UEI HK9GTULP5GJ2",
    "issued_for": "public integrity challenge",
    "nonce": "1a784c116d9d430048b540275ab13ce1"
  },
  "proof": {
    "schema": "proofrail.cryptographic_proof.v1",
    "canonicalization": "RFC8785",
    "digest_algorithm": "SHA-256",
    "signature_algorithm": "Ed25519",
    "payload_sha256": "fc96fe0f4f809403617646afcd3a9be6b0e489a55f7b16dc85b336cab41f3a5c",
    "canonical_bytes": 298,
    "created_at": "2026-09-01T20:36:47.232Z",
    "key_id": "proofrail-challenge-2026-09",
    "signature_base64url": "kA18oMtJMdgjuMTqIkeuDW7eor8xuAhYhzzS-L-194jonwVD9_1m61GS9ZCQx81Z8CSyI-uzIxfmYQSCNtGNDg"
  },
  "public_key_base64_spki": "MCowBQYDK2VwAyEAXWrExYWzPasGCFoI/VfqVAAb2gtwBn3dytoZJsfDplc="
}