{
  "schemaVersion": 1,
  "created": {
    "ai": "ChatGPT (OpenAI)",
    "model": "gpt-6.1-sol",
    "reasoningLevel": "medium",
    "application": "Codex",
    "timestamp": "2026-10-25T21:52:05-07:00",
    "timezone": "America/Los_Angeles",
    "verification": "Actual own turn_context retained in private research/session-verification.json."
  },
  "revisions": [
    {
      "ai": "ChatGPT (OpenAI)",
      "model": "gpt-6.1-sol",
      "reasoningLevel": "medium",
      "application": "Codex",
      "timestamp": "2026-10-25T22:20:46-07:00",
      "timezone": "America/Los_Angeles",
      "kind": "factual date correction before first submission",
      "summary": "FRUS document48 is dated10December1960; distinct9Decemberheadquarterscableisfootnote2. Corrected event18,chapter4/source/image/rights/searchtext;originalcreatorpreserved.",
      "verification": "Actual latest turn_context retained in research/date-correction-session-verification.json"
    },
    {
      "ai": "ChatGPT (OpenAI)",
      "model": "gpt-6.1-sol",
      "reasoningLevel": "medium",
      "application": "Codex",
      "timestamp": "2026-10-25T22:26:56-07:00",
      "timezone": "America/Los_Angeles",
      "kind": "Spec7 t490u font-role maintenance",
      "summary": "Explicit display/body/UI font variables and semantic selectors; existing ten WOFF2 files unchanged. Corrected content timestamp preserved.",
      "verification": "research/font-maintenance-session-verification.json"
    },
    {
      "ai": "ChatGPT (OpenAI)",
      "model": "gpt-6.1-sol",
      "reasoningLevel": "medium",
      "application": "Codex",
      "timestamp": "2026-10-25T22:52:18-07:00",
      "timezone": "America/Los_Angeles",
      "kind": "Substantive Spec7 t506u analytical revision",
      "summary": "Critical path precedes aggregation; narrow removal tests, evidence/cultural-prominence distinction, documented genealogy, rival accept/remove/add maps and source-grounded report/public-voice comparisons. Prior creator, date correction and font-role history preserved.",
      "verification": "research/valueadd-session-verification.json"
    },
    {
      "ai": "ChatGPT (OpenAI)",
      "model": "gpt-6.1-sol",
      "reasoningLevel": "medium",
      "application": "Codex",
      "timestamp": "2026-10-25T23:20:30-07:00",
      "timezone": "America/Los_Angeles",
      "kind": "Whitespace-only maintenance",
      "summary": "Inserted missing spaces in two CP6 strings; no factual, interpretive or asset change; content timestamp preserved.",
      "verification": "research/whitespace-maintenance-session-verification.json"
    },
    {
      "ai": "ChatGPT (OpenAI)",
      "model": "gpt-6.1-sol",
      "reasoningLevel": "medium",
      "application": "Codex",
      "dateTime": "2026-10-25T23:44:30-07:00",
      "kind": "web asset routing only; original and substantive revision history preserved"
    }
  ],
  "lastUpdated": "2026-10-25T22:52:18-07:00",
  "builtBy": "ChatGPT (OpenAI) \u00b7 gpt-6.1-sol \u00b7 Codex",
  "reasoningLevel": "medium",
  "formatUpdatedAt": "2026-10-25T23:20:30-07:00",
  "maintenanceUpdatedAt": "2026-10-25T23:44:30-07:00"
}