{
  "service": "OnchainPulse ISO receipts",
  "algorithm": "Ed25519",
  "public_key_hex": "13c15df28977cccb0a58040ca56f570110e20fc2685ed469762872d8f61e6d24",
  "signed_payload": "sha256(canonical_manifest) as utf-8 hex string",
  "canonicalization": "JSON keys sorted recursively, no whitespace; XML hashed as raw utf-8 bytes",
  "verify_page": "https://onchainpulse.theaslangroupllc.com/verify.html",
  "valid_from": "2026-08-02"
}