{
  "generated": "2026-07-07T01:29:56.980687+00:00",
  "algorithm": "sha256",
  "entities": 3507,
  "snapshots": 26012,
  "dataset_hash": "1d1670fb519873bb69fd909b5d2b677f0e8b81cf995670e5883ba9ffdc995ba8",
  "chain_head": "ca37b032f5cf7b652eb8d6d1301a67f11e9df690d460fbe570fc3d83867b867f",
  "method": "Every record is cross-checked across independent sources (Wikidata, Wikipedia, MusicBrainz, OpenStreetMap, TMDB, KTO), identity- and hallucination-guarded, and Skill-scored. The history (snapshots.jsonl) is append-only and hash-chained; the chain_head is committed each build, so altered history is detectable.",
  "verify": "Per record: content_hash = SHA-256 of the canonical-JSON verified core (entity_id, kind, name{ko,en_official,romanized}, summary_en, summary_ko, data, skill_score@4dp, agreeing_sources, sources with the trailing ' YYYY-MM-DD HH:MM UTC' removed; JSON sort_keys, separators (',',':')). dataset_hash = SHA-256 of the sorted content_hashes joined. Recompute from latest.json to verify.",
  "note": "Tamper-evidence via a published, git-committed head — not external notarization (a future step).",
  "log": "https://aiagentlabs.co.kr/integrity-log.jsonl",
  "anchor": "each build appends this head to a public, append-only, git-committed log (GitHub-timestamped); altering a past head requires rewriting public git history. External notarization (e.g. OpenTimestamps) is an optional next step."
}