{
  "doc_id": "C3-WEB-ITS-API-0.1",
  "version": "0.2.1",
  "sig_alg": "EdDSA",
  "hash_alg": "SHA-256",
  "signature_target": "manifest_hash",
  "manifest_hash_ref": "run_manifest.json#manifest_hash",
  "issuer_id": "did:key:z6MkC3SocialDesignCenter2026",
  "issued": "2026-04-21T09:00:00+09:00",
  "signature_value": "sim:EdDSA:3a4b5c6d7e8f9a0b1c2d3e4f5a6b7c8d9e0f1a2b3c4d5e6f7a8b9c0d1e2f3a4b5c6d",
  "public_key_pem_url": "https://docs.c3-anchor.jp/kit/C3-WEB-ITS-API-0.1/public_key.pem",
  "verification_note": "Signature value is simulation data. Use verify_cli or OpenSSL for actual verification.",
  "non_claims": [
    "cryptographic validity is not guaranteed by this JSON file alone",
    "no legal proof validity"
  ]
}