{
  "benchmark": "SOV-PQC",
  "criteria": {
    "alg_agility": "Every signed record names its algorithm, so a verifier need not assume one",
    "hybrid_ready": "The format can carry two signatures over one payload (classical + PQC)",
    "timestamped": "An RFC 3161 trusted timestamp proves existence before any future break",
    "ts_renewal": "RFC 4998 evidence-record renewal, so the proof outlives its own algorithm",
    "pqc_option": "A PQC algorithm is present or selectable (ML-DSA, COSE \u221248/\u221249/\u221250)"
  },
  "subjects_measured": 5,
  "subjects_unmeasured": [],
  "results": {
    "SIGIL J-space chain": {
      "alg_agility": {
        "pass": false,
        "detail": "0/21 signed records name an algorithm"
      },
      "hybrid_ready": {
        "pass": false,
        "detail": "0/21 carry a container signature field; a scalar string cannot hold a second signature"
      },
      "timestamped": {
        "pass": false,
        "detail": "no RFC 3161 token field found"
      },
      "ts_renewal": {
        "pass": false,
        "detail": "no RFC 4998 evidence-record field found"
      },
      "pqc_option": {
        "pass": false,
        "detail": "no PQC algorithm named anywhere in the chain"
      },
      "records": 21,
      "signed_records": 21
    },
    "SOV33 sovereign chain": {
      "alg_agility": {
        "pass": false,
        "detail": "0/3 signed records name an algorithm"
      },
      "hybrid_ready": {
        "pass": false,
        "detail": "0/3 carry a container signature field; a scalar string cannot hold a second signature"
      },
      "timestamped": {
        "pass": false,
        "detail": "no RFC 3161 token field found"
      },
      "ts_renewal": {
        "pass": false,
        "detail": "no RFC 4998 evidence-record field found"
      },
      "pqc_option": {
        "pass": false,
        "detail": "no PQC algorithm named anywhere in the chain"
      },
      "records": 3,
      "signed_records": 3
    },
    "SOV33 composition chain": {
      "alg_agility": {
        "pass": false,
        "detail": "0/2 signed records name an algorithm"
      },
      "hybrid_ready": {
        "pass": false,
        "detail": "0/2 carry a container signature field; a scalar string cannot hold a second signature"
      },
      "timestamped": {
        "pass": false,
        "detail": "no RFC 3161 token field found"
      },
      "ts_renewal": {
        "pass": false,
        "detail": "no RFC 4998 evidence-record field found"
      },
      "pqc_option": {
        "pass": false,
        "detail": "no PQC algorithm named anywhere in the chain"
      },
      "records": 2,
      "signed_records": 2
    },
    "MEOK SOV33 chain": {
      "alg_agility": {
        "pass": false,
        "detail": "0/2 signed records name an algorithm"
      },
      "hybrid_ready": {
        "pass": false,
        "detail": "0/2 carry a container signature field; a scalar string cannot hold a second signature"
      },
      "timestamped": {
        "pass": false,
        "detail": "no RFC 3161 token field found"
      },
      "ts_renewal": {
        "pass": false,
        "detail": "no RFC 4998 evidence-record field found"
      },
      "pqc_option": {
        "pass": false,
        "detail": "no PQC algorithm named anywhere in the chain"
      },
      "records": 2,
      "signed_records": 2
    },
    "C2PA manifest (ours)": {
      "alg_agility": {
        "pass": true,
        "detail": "COSE header carries an alg identifier"
      },
      "hybrid_ready": {
        "pass": false,
        "detail": "C2PA \u2264v2.4 defines ONE claim signature per claim \u2014 no hybrid slot exists in the spec, independent of our usage"
      },
      "timestamped": {
        "pass": false,
        "detail": "RFC 3161 timestamping is supported by C2PA; our selftest falls back to untimestamped when no TSA is reachable"
      },
      "ts_renewal": {
        "pass": false,
        "detail": "no RFC 4998 evidence-record renewal in C2PA \u2264v2.4"
      },
      "pqc_option": {
        "pass": false,
        "detail": "C2PA \u2264v2.4 permits ES256/EdDSA/PS256 only \u2014 all classical. RFC 9964 registered ML-DSA COSE \u221248/\u221249/\u221250 in May 2026 but C2PA has not adopted them"
      },
      "records": 1,
      "signed_records": 1
    }
  },
  "per_criterion": {
    "alg_agility": {
      "pass": 1,
      "of": 5,
      "criterion": "Every signed record names its algorithm, so a verifier need not assume one"
    },
    "hybrid_ready": {
      "pass": 0,
      "of": 5,
      "criterion": "The format can carry two signatures over one payload (classical + PQC)"
    },
    "timestamped": {
      "pass": 0,
      "of": 5,
      "criterion": "An RFC 3161 trusted timestamp proves existence before any future break"
    },
    "ts_renewal": {
      "pass": 0,
      "of": 5,
      "criterion": "RFC 4998 evidence-record renewal, so the proof outlives its own algorithm"
    },
    "pqc_option": {
      "pass": 0,
      "of": 5,
      "criterion": "A PQC algorithm is present or selectable (ML-DSA, COSE \u221248/\u221249/\u221250)"
    }
  },
  "composite_score": "REFUSED BY DESIGN \u2014 see module docstring",
  "standards": {
    "NIST_IR_8547": "EdDSA/ECDSA disallowed after 2035",
    "NSA_CNSA_2.0": "PQC support expected from Jan 2027",
    "RFC_9964": "ML-DSA COSE identifiers -48/-49/-50, May 2026",
    "C2PA_v2.4": "ES256/EdDSA/PS256 only \u2014 classical"
  },
  "corpus_anchor": {
    "corpus_root": "3729b52eb469b77c6501056889460e9fcd45fc0127bc59b002863b28db3ef01d",
    "provisions": 417,
    "normaliser_version": "1.0.0",
    "anchored_at": "2026-07-29T14:07:17.839263+00:00",
    "retro": false,
    "note": "Anchored at write time by anchored_write.write_result()."
  }
}