{
  "schema_version": "0.1",
  "method_version": "0.1",
  "example_id": "AF-EX-2026-08-22",
  "generated_at": "2026-08-22T12:00:00.000Z",
  "question": "What should a small team record before comparing public AI answers over time?",
  "criteria": [
    "observation timestamp",
    "public surface",
    "visible source URLs",
    "missing data rule"
  ],
  "observations": [
    {
      "label": "Demo A",
      "surface": "Synthetic surface A",
      "model": "Synthetic version A",
      "locale": "en-US",
      "observedAt": "2026-08-01T09:00",
      "route": "Synthetic route A",
      "answer": "Record an observation timestamp, the public surface, locale and visible source URLs. Keep a missing data rule beside the record.",
      "sources": [
        { "raw": "https://method.example/observation", "host": "method.example" },
        { "raw": "https://schema.example/evidence", "host": "schema.example" }
      ],
      "invalidSources": []
    },
    {
      "label": "Demo B",
      "surface": "Synthetic surface B",
      "model": "Synthetic version B",
      "locale": "en-US",
      "observedAt": "2026-08-08T09:00",
      "route": "Synthetic route B",
      "answer": "A repeatable record needs an observation timestamp, public surface, question and visible source URLs. State a missing data rule before comparison.",
      "sources": [
        { "raw": "https://method.example/observation", "host": "method.example" },
        { "raw": "https://rights.example/retention", "host": "rights.example" }
      ],
      "invalidSources": []
    },
    {
      "label": "Demo C",
      "surface": "Synthetic surface C",
      "model": "Synthetic version C",
      "locale": "en-US",
      "observedAt": "2026-08-15T09:00",
      "route": "Synthetic route C",
      "answer": "Record the public surface, locale, question, observation timestamp and any missing data rule. Preserve visible source URLs when retention is allowed.",
      "sources": [
        { "raw": "https://method.example/observation", "host": "method.example" },
        { "raw": "https://schema.example/evidence", "host": "schema.example" }
      ],
      "invalidSources": []
    }
  ],
  "metrics": {
    "unique_source_domains": 3,
    "recurring_source_domains": 2,
    "mean_answer_token_jaccard": 0.6152046783625731,
    "literal_coverage_matches": 12,
    "literal_coverage_cells": 12
  },
  "source_presence": {
    "method.example": [true, true, true],
    "rights.example": [false, true, false],
    "schema.example": [true, false, true]
  },
  "criterion_presence": {
    "observation timestamp": [true, true, true],
    "public surface": [true, true, true],
    "visible source URLs": [true, true, true],
    "missing data rule": [true, true, true]
  },
  "comparability_notes": [
    "The three surface, version and route labels are deliberately synthetic and different.",
    "Source presence measures recurrence only; it does not rate source quality, support, authorship or independence.",
    "This fixture validates the calculation workflow and is not an independent provider benchmark."
  ],
  "boundary": "Synthetic owner-created inputs only. No provider output was collected, stored or published; no hidden queries, retrieval traces, ranking internals or model reasoning are represented."
}