Verified & tracked since 2026-08-17 · 5 verified snapshots.
Append-only, timestamped — the record of WHEN a fact changed, which a latecomer cannot backfill. Full feed: /changes.json · machine-readable: get_history("book:firesonata").
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Embed it — the badge shows this entity’s verification tier + Skill Score and links back here (a “via KoreaAPI” citation):
<a href="https://aiagentlabs.co.kr/artist/firesonata.html"><img src="https://aiagentlabs.co.kr/badge/firesonata.svg" alt="Verified by KoreaAPI"></a>
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Cite as: Fire sonata — verified, as of 2026-09-07 · Wikidata Q12585053 2026-09-07 22:13 UTC · Skill 0.70 · via KoreaAPI https://aiagentlabs.co.kr/artist/firesonata.html SHA-256: 3eb337d16707ad6709bb1bba535fad0def9f6ba75bacf75a0f3c2c0482b93b65 · verify at /integrity.json