{"note":"Chain of a reading: claim, supporting assertions, locator inside the read source, snapshot metadata. Snapshot bodies are never served.","slug":"contra-costa-county","claims":[{"value":{"text":"1850","year":1850,"precision":"YEAR"},"support":[{"role":"SUBJECT","value":{"text":"1850","year":1850,"precision":"YEAR"},"locator":{"verbatim":"1850","field_path":"548[0]$a[0]","locator_id":36722},"snapshot":{"revision":"20260105100111.0","access_url":"https://d-nb.info/gnd/1042169845/about/marcxml","http_status":200,"snapshot_id":5640,"source_work":"gnd:1042169845","content_hash":"8b57db0c88969be18e7caa3f450fd18e48a5662b5d55bb1c9a2225b7f87a93a7","retrieved_at":"2026-09-29T08:40:17.90072+00:00","licence_basis":"CC0 1.0 (Deutsche Nationalbibliothek, Gemeinsame Normdatei, d-nb.info)","reader_version":"rdoc-multi-2.1.0"},"precision":"YEAR","predicate":"inception","depends_on":null,"event_type":"ESTABLISHMENT","quantifier":"SINGLE","attribution":"Deutsche Nationalbibliothek, Gemeinsame Normdatei","source_work":"gnd:1042169845","uncertainty":null,"assertion_id":25338,"source_family":"DNB-GND","subject_scope":"entity:5936b439-d398-4411-8fcb-303e4a6b448b"}],"claim_id":14919,"precision":"YEAR","predicate":"inception","admitted_at":"2026-09-29T08:40:17.90072+00:00","decision_id":20598}],"version":3,"entity_id":"5936b439-d398-4411-8fcb-303e4a6b448b","revision_id":2477,"verified_at":"2026-10-06T15:51:05.318026+00:00","activated_at":"2026-10-06T15:50:00.350737+00:00","candidate_id":145141,"content_hash":"2cc8f14fdbb81626c2ea62aee7266e84","unresolved_claim_ids":[]}