{
  "created_at": "2026-11-12T07:59:10Z",
  "result": {
    "engine": "research_provenance",
    "limits": "Re-checks the supplied ledger: dependency graph, bounded constructions (Sidon set, Ramsey graph), external proof hashes, status propagation and independent reviews. It does not re-run an external formal proof and does not prove the mathematics beyond the bounded construction it re-checks. The run is Ed25519-signed; pin the issuer key out of band.",
    "module": "cain_a75_engines/researchgraph/engine.py",
    "profile": "open_world_math",
    "run": {
      "label": "Re-checks the programme's own ledger: dependency graph, bounded constructions (Sidon, Ramsey), external proof hashes, status propagation and independent reviews. It does not re-run an external formal proof and does not prove the mathematics beyond the bounded construction it re-checks.",
      "public_key_b64": "W2JA1ibUIv72UVHnEpj4x/+KMoba3ocZt+QPA/i6mfo=",
      "records": [
        {
          "checks": [
            {
              "detail": "author 'agent:explorer-1'",
              "id": "C1-paley17.author_registered",
              "ok": true
            },
            {
              "detail": "depends on []",
              "id": "C1-paley17.dependencies_exist",
              "ok": true
            },
            {
              "detail": "author 'agent:explorer-2'",
              "id": "C2-mian-chowla-12.author_registered",
              "ok": true
            },
            {
              "detail": "depends on []",
              "id": "C2-mian-chowla-12.dependencies_exist",
              "ok": true
            },
            {
              "detail": "author 'agent:explorer-2'",
              "id": "C3-greedy-density.author_registered",
              "ok": true
            },
            {
              "detail": "depends on ['C2-mian-chowla-12']",
              "id": "C3-greedy-density.dependencies_exist",
              "ok": true
            },
            {
              "detail": "author 'agent:explorer-1'",
              "id": "C4-extension.author_registered",
              "ok": true
            },
            {
              "detail": "depends on ['C3-greedy-density']",
              "id": "C4-extension.dependencies_exist",
              "ok": true
            },
            {
              "detail": "author 'agent:prover-3'",
              "id": "C5-lean-lemma.author_registered",
              "ok": true
            },
            {
              "detail": "depends on ['C1-paley17']",
              "id": "C5-lean-lemma.dependencies_exist",
              "ok": true
            },
            {
              "detail": "no claim depends on itself",
              "id": "graph.acyclic",
              "ok": true
            },
            {
              "detail": "a CONSTRUCTION must carry the object",
              "id": "C1-paley17.construction_has_construction",
              "ok": true
            },
            {
              "detail": "a CONSTRUCTION must carry the object",
              "id": "C2-mian-chowla-12.construction_has_construction",
              "ok": true
            },
            {
              "detail": "an external proof records its checker and the SHA-256 of the proof artifact",
              "id": "C5-lean-lemma.formal_proof_recorded",
              "ok": true
            },
            {
              "detail": "the programme calls it established; the ledger gives ESTABLISHED",
              "id": "summary.C1-paley17.is_established",
              "ok": true
            },
            {
              "detail": "1 independent, current accepting review(s)",
              "id": "summary.C1-paley17.independently_reviewed",
              "ok": true
            },
            {
              "detail": "the programme calls it established; the ledger gives ESTABLISHED",
              "id": "summary.C2-mian-chowla-12.is_established",
              "ok": true
            },
            {
              "detail": "1 independent, current accepting review(s)",
              "id": "summary.C2-mian-chowla-12.independently_reviewed",
              "ok": true
            }
          ],
          "created_at": "2026-11-12T07:59:10Z",
          "engine": "a75-005/1.0.0",
          "extra": {
            "construction_checks": {
              "C1-paley17": "graph on 17 vertices: no K4 and no independent 4-set (so R(4,4) > 17)",
              "C2-mian-chowla-12": "12 elements in [1, 123], all 78 pairwise sums distinct"
            },
            "independent_reviews": {
              "C1-paley17": 1,
              "C2-mian-chowla-12": 1,
              "C3-greedy-density": 0,
              "C4-extension": 0,
              "C5-lean-lemma": 0
            },
            "status": {
              "C1-paley17": "ESTABLISHED",
              "C2-mian-chowla-12": "ESTABLISHED",
              "C3-greedy-density": "CONDITIONAL",
              "C4-extension": "CONDITIONAL",
              "C5-lean-lemma": "EXTERNAL"
            }
          },
          "failed": [],
          "label": "Re-checks the programme's own ledger: dependency graph, bounded constructions (Sidon, Ramsey), external proof hashes, status propagation and independent reviews. It does not re-run an external formal proof and does not prove the mathematics beyond the bounded construction it re-checks.",
          "prev_record_hash": "8c7c8815b698dcdf4e36e3bd44b3ca17362f0444ebc42da824c925f383080596",
          "public_key_b64": "W2JA1ibUIv72UVHnEpj4x/+KMoba3ocZt+QPA/i6mfo=",
          "record_hash": "175952f245dfe1bcefab2e11daec1806e6c9117e8989f2182197084d0aabaa9f",
          "schema": "cain42.a75.research.record.v1",
          "signature_b64": "PdCWKtNAm885mx2hd2pFPUe5sjhjsl2KgN4AOXA6YYtZEEEgDV3N209nShhydb5i5XIkpPC8UO5Oz6MMIAO0Ag==",
          "sku": "CAIN-A75-005",
          "subject": {
            "agents": [
              {
                "id": "agent:explorer-1",
                "operator": "lab-a"
              },
              {
                "id": "agent:explorer-2",
                "operator": "lab-a"
              },
              {
                "id": "agent:prover-3",
                "operator": "lab-b"
              },
              {
                "id": "agent:auditor-9",
                "operator": "independent-c"
              }
            ],
            "claims": [
              {
                "author": "agent:explorer-1",
                "depends_on": [],
                "evidence": {
                  "family": "ramsey_graph",
                  "object": {
                    "edges": [
                      [
                        0,
                        1
                      ],
                      [
                        0,
                        2
                      ],
                      [
                        0,
                        4
                      ],
                      [
                        0,
                        8
                      ],
                      [
                        0,
                        9
                      ],
                      [
                        0,
                        13
                      ],
                      [
                        0,
                        15
                      ],
                      [
                        0,
                        16
                      ],
                      [
                        1,
                        2
                      ],
                      [
                        1,
                        3
                      ],
                      [
                        1,
                        5
                      ],
                      [
                        1,
                        9
                      ],
                      [
                        1,
                        10
                      ],
                      [
                        1,
                        14
                      ],
                      [
                        1,
                        16
                      ],
                      [
                        2,
                        3
                      ],
                      [
                        2,
                        4
                      ],
                      [
                        2,
                        6
                      ],
                      [
                        2,
                        10
                      ],
                      [
                        2,
                        11
                      ],
                      [
                        2,
                        15
                      ],
                      [
                        3,
                        4
                      ],
                      [
                        3,
                        5
                      ],
                      [
                        3,
                        7
                      ],
                      [
                        3,
                        11
                      ],
                      [
                        3,
                        12
                      ],
                      [
                        3,
                        16
                      ],
                      [
                        4,
                        5
                      ],
                      [
                        4,
                        6
                      ],
                      [
                        4,
                        8
                      ],
                      [
                        4,
                        12
                      ],
                      [
                        4,
                        13
                      ],
                      [
                        5,
                        6
                      ],
                      [
                        5,
                        7
                      ],
                      [
                        5,
                        9
                      ],
                      [
                        5,
                        13
                      ],
                      [
                        5,
                        14
                      ],
                      [
                        6,
                        7
                      ],
                      [
                        6,
                        8
                      ],
                      [
                        6,
                        10
                      ],
                      [
                        6,
                        14
                      ],
                      [
                        6,
                        15
                      ],
                      [
                        7,
                        8
                      ],
                      [
                        7,
                        9
                      ],
                      [
                        7,
                        11
                      ],
                      [
                        7,
                        15
                      ],
                      [
                        7,
                        16
                      ],
                      [
                        8,
                        9
                      ],
                      [
                        8,
                        10
                      ],
                      [
                        8,
                        12
                      ],
                      [
                        8,
                        16
                      ],
                      [
                        9,
                        10
                      ],
                      [
                        9,
                        11
                      ],
                      [
                        9,
                        13
                      ],
                      [
                        10,
                        11
                      ],
                      [
                        10,
                        12
                      ],
                      [
                        10,
                        14
                      ],
                      [
                        11,
                        12
                      ],
                      [
                        11,
                        13
                      ],
                      [
                        11,
                        15
                      ],
                      [
                        12,
                        13
                      ],
                      [
                        12,
                        14
                      ],
                      [
                        12,
                        16
                      ],
                      [
                        13,
                        14
                      ],
                      [
                        13,
                        15
                      ],
                      [
                        14,
                        15
                      ],
                      [
                        14,
                        16
                      ],
                      [
                        15,
                        16
                      ]
                    ],
                    "n": 17,
                    "s": 4,
                    "t": 4
                  },
                  "type": "construction"
                },
                "id": "C1-paley17",
                "kind": "CONSTRUCTION",
                "reviews": [
                  {
                    "by": "agent:auditor-9",
                    "claim_sha256": "dbd5d1f11e58d21f57b6ca953721047c82a0fa37cb7f215967c1af5ca0b72dec",
                    "verdict": "accept"
                  }
                ],
                "statement": "The Paley graph on 17 vertices has no K4 and no independent set of size 4, so R(4,4) > 17."
              },
              {
                "author": "agent:explorer-2",
                "depends_on": [],
                "evidence": {
                  "family": "sidon_set",
                  "object": {
                    "N": 123,
                    "claimed_size": 12,
                    "set": [
                      1,
                      2,
                      4,
                      8,
                      13,
                      21,
                      31,
                      45,
                      66,
                      81,
                      97,
                      123
                    ]
                  },
                  "type": "construction"
                },
                "id": "C2-mian-chowla-12",
                "kind": "CONSTRUCTION",
                "reviews": [
                  {
                    "by": "agent:auditor-9",
                    "claim_sha256": "055a47dee14d6fa970deec68d8c4f3e44197cd7c16f976b03934afcb535e4664",
                    "verdict": "accept"
                  }
                ],
                "statement": "The first 12 Mian-Chowla terms [1, 2, 4, 8, 13, 21, 31, 45, 66, 81, 97, 123] form a Sidon set in [1, 123]."
              },
              {
                "author": "agent:explorer-2",
                "depends_on": [
                  "C2-mian-chowla-12"
                ],
                "evidence": {
                  "type": "none"
                },
                "id": "C3-greedy-density",
                "kind": "CONJECTURE",
                "statement": "The greedy Sidon sequence keeps a density close to the optimal order."
              },
              {
                "author": "agent:explorer-1",
                "depends_on": [
                  "C3-greedy-density"
                ],
                "evidence": {
                  "type": "none"
                },
                "id": "C4-extension",
                "kind": "THEOREM",
                "statement": "A consequence that holds if C3 holds."
              },
              {
                "author": "agent:prover-3",
                "depends_on": [
                  "C1-paley17"
                ],
                "evidence": {
                  "artifact_sha256": "7777777777777777777777777777777777777777777777777777777777777777",
                  "checker": "lean4 v4.12",
                  "type": "formal_proof"
                },
                "id": "C5-lean-lemma",
                "kind": "LEMMA",
                "statement": "A lemma proved in Lean by another group."
              }
            ],
            "programme": "open-world-math-station-sample",
            "schema": "cain42.a75.research.ledger.v1",
            "summary": {
              "conditional": [
                "C3-greedy-density",
                "C4-extension"
              ],
              "established": [
                "C1-paley17",
                "C2-mian-chowla-12"
              ],
              "external": [
                "C5-lean-lemma"
              ]
            }
          },
          "subject_sha256": "7b152b9844ff9ba0e39f38e8139019a05a46164384965d3681ba16e6ca1fd56e",
          "verdict": "CONSISTENT"
        }
      ],
      "run_hash": "33dd4a723a67dd5cdd174834634a6a99e33b1ac4c1ef88db970f716c09dba151",
      "schema": "cain42.a75.research.run.v1",
      "sku": "CAIN-A75-005",
      "verdict": "VERIFIED",
      "verdicts": [
        "CONSISTENT"
      ]
    },
    "scenarios": [
      {
        "conditional": [
          "C3-greedy-density",
          "C4-extension"
        ],
        "established": [
          "C1-paley17",
          "C2-mian-chowla-12"
        ],
        "external": [
          "C5-lean-lemma"
        ],
        "name": "open_world_math_programme",
        "run_hash": "33dd4a723a67dd5cdd174834634a6a99e33b1ac4c1ef88db970f716c09dba151",
        "verdict": "VERIFIED"
      },
      {
        "expected": "CONSISTENT",
        "name": "honest_programme",
        "verdict": "CONSISTENT"
      },
      {
        "expected": "INCONSISTENT",
        "name": "conditional_theorem_called_established",
        "verdict": "INCONSISTENT"
      },
      {
        "expected": "INCONSISTENT",
        "name": "external_proof_called_established",
        "verdict": "INCONSISTENT"
      },
      {
        "expected": "INCONSISTENT",
        "name": "conjecture_called_established",
        "verdict": "INCONSISTENT"
      },
      {
        "expected": "INCONSISTENT",
        "name": "broken_graph_construction",
        "verdict": "INCONSISTENT"
      },
      {
        "expected": "INCONSISTENT",
        "name": "sidon_set_with_a_repeated_sum",
        "verdict": "INCONSISTENT"
      },
      {
        "expected": "INCONSISTENT",
        "name": "sidon_size_overstated",
        "verdict": "INCONSISTENT"
      },
      {
        "expected": "INCONSISTENT",
        "name": "self_review_only",
        "verdict": "INCONSISTENT"
      },
      {
        "expected": "INCONSISTENT",
        "name": "same_operator_review_only",
        "verdict": "INCONSISTENT"
      },
      {
        "expected": "INCONSISTENT",
        "name": "review_is_stale_after_an_edit",
        "verdict": "INCONSISTENT"
      },
      {
        "expected": "INCONSISTENT",
        "name": "review_rejected",
        "verdict": "INCONSISTENT"
      },
      {
        "expected": "INCONSISTENT",
        "name": "depends_on_a_refuted_claim",
        "verdict": "INCONSISTENT"
      },
      {
        "expected": "INCONSISTENT",
        "name": "dependency_cycle",
        "verdict": "INCONSISTENT"
      },
      {
        "expected": "INCONSISTENT",
        "name": "unknown_author",
        "verdict": "INCONSISTENT"
      },
      {
        "expected": "INCONSISTENT",
        "name": "missing_dependency",
        "verdict": "INCONSISTENT"
      },
      {
        "expected": "INCONSISTENT",
        "name": "construction_without_object",
        "verdict": "INCONSISTENT"
      },
      {
        "expected": "INCONSISTENT",
        "name": "unsupported_family",
        "verdict": "INCONSISTENT"
      },
      {
        "expected": "INCONSISTENT",
        "name": "external_proof_without_hash",
        "verdict": "INCONSISTENT"
      },
      {
        "expected": "INCONSISTENT",
        "name": "construction_too_large_to_check",
        "verdict": "INCONSISTENT"
      },
      {
        "expected": "INCONSISTENT",
        "name": "bad_kind",
        "verdict": "INCONSISTENT"
      },
      {
        "expected": "INCONSISTENT",
        "name": "duplicate_claim_id",
        "verdict": "INCONSISTENT"
      },
      {
        "expected": "INCONSISTENT",
        "name": "no_summary",
        "verdict": "INCONSISTENT"
      },
      {
        "expected": "INCONSISTENT",
        "name": "wrong_schema",
        "verdict": "INCONSISTENT"
      },
      {
        "expected": "INCONSISTENT",
        "name": "garbage",
        "verdict": "INCONSISTENT"
      }
    ],
    "summary": "VERIFIED: 2 established, 2 conditional, 1 external; 24/24 ledger-failure cases as expected"
  },
  "schema": "cain42.agentic75.findings.v1",
  "sku": "CAIN-A75-005"
}
