{
  "issuer": "Demonstration issuer (demonstration, synthetic data)",
  "evidence_mark": "Sealed to the FusionTrace Evidence Standard",
  "fingerprint_method": "SHA-256 of the public_key text exactly as published (Standard A5.4); the key ID is its first 16 characters",
  "demonstration": true,
  "note": "A demonstration key. It sealed one package of synthetic files, the one at /verify/demo/, and its private half was never stored, so it can seal nothing else.",
  "keys": [
    {
      "key_version": "FT-DEMO-2026-10-V2",
      "algorithm": "Ed25519",
      "status": "demonstration",
      "public_key": "MCowBQYDK2VwAyEA2sjBmogM4rbeyHUA/A5OdueMkWjUSOeeumBZCBaHOWg=",
      "fingerprint_sha256": "fbc6d0b7c3e578001f4fdd8e3c7d057a390441eecebffdd68f19a0f0c372e833",
      "key_id": "fbc6d0b7c3e57800"
    }
  ]
}