{"data":{"event":{"id":"83134f08-9f3f-4e86-9834-81a05acfc056","slug":"dna-analysis-strengthens-evidence-that-thomas-jefferson-fathered-childre-c106359b43","title":"DNA analysis strengthens evidence that Thomas Jefferson fathered children with Sally Hemings","short_summary":"Researchers sequenced president’s genome from a lock of hair taken shortly after his death, then compared his DNA with that of Hemings’s living descendants","full_description":"Researchers sequenced president’s genome from a lock of hair taken shortly after his death, then compared his DNA with that of Hemings’s living descendants","ledger_type":"benefit","primary_domain_id":"8f1af1b9-7302-4b51-aae9-fdfac04d158a","event_status":"provisional","event_date":"2026-09-22T00:00:00.000Z","discovery_date":"2026-09-22T00:00:00.000Z","first_published_date":"2026-09-22T00:00:00.000Z","last_reviewed_date":"2026-09-22T00:00:00.000Z","geographic_scope":"International","affected_population":null,"base_impact_tier":1,"base_score":"1.00","attribution_multiplier":"0.1000","evidence_multiplier":"0.1000","realization_multiplier":"0.2000","durability_multiplier":"0.5000","current_event_score":"0.001000","confidence_level":"low","score_explanation":"Auto-published from news ingest as a provisional placeholder. Score is conservative until a named release is identified and the record is rescored.","methodology_version_id":"8745541b-0f8e-4d5a-9b47-5291d3813a8d","original_methodology_version_id":"8745541b-0f8e-4d5a-9b47-5291d3813a8d","published_at":"2026-09-22T21:01:02.021Z","created_at":"2026-09-22T21:01:02.021Z","updated_at":"2026-09-22T21:01:02.021Z","flags":[],"domain_name":"Biology","domain_slug":"biology","methodology_version":"0.2"},"contributions":[{"id":"8dac49cd-6505-4e02-b032-07f9bb6e8afc","event_id":"83134f08-9f3f-4e86-9834-81a05acfc056","model_id":"535014f7-c941-4d39-aa9b-8f9c1d3d07b7","role_description":"Unspecified system mentioned or implied by a news item. Remap to a named release when identified.","attribution_multiplier":"0.1000","credit_share":"1.0000","contribution_score":"0.001000","attribution_rationale":"News ingest does not infer a named model from the publisher alone. Attribution stays unspecified until a release is identified.","attribution_confidence":"medium","first_used_date":"2026-09-22T00:00:00.000Z","model_version_if_known":null,"review_status":"approved","created_at":"2026-09-22T21:01:02.029Z","model_slug":"unspecified-ai-system","model_name":"Unspecified AI system","identity_class":"unknown","is_internal":false,"family_name":"Unspecified","family_slug":"unknown-unspecified","organization_name":"Unknown","organization_slug":"unknown"}],"sources":[{"id":"7d5b4ae7-58b0-4435-96ea-2aa2e0da6261","event_id":"83134f08-9f3f-4e86-9834-81a05acfc056","url":"https://www.science.org/content/article/dna-analysis-strengthens-evidence-thomas-jefferson-fathered-children-sally-hemings","canonical_url":"https://www.science.org/content/article/dna-analysis-strengthens-evidence-thomas-jefferson-fathered-children-sally-hemings","source_type":"peer_reviewed","publisher":"Science","author":null,"publication_date":"2026-09-22T00:00:00.000Z","retrieved_at":"2026-09-22T21:01:02.037Z","title":"DNA analysis strengthens evidence that Thomas Jefferson fathered children with Sally Hemings","excerpt":"Researchers sequenced president’s genome from a lock of hair taken shortly after his death, then compared his DNA with that of Hemings’s living descendants","content_hash":null,"source_reliability_class":"medium","is_primary_source":true,"is_independent":true,"is_peer_reviewed":true,"archived_url":null,"created_at":"2026-09-22T21:01:02.037Z"}],"claims":[{"id":"c5c52911-cf2c-4f7a-900d-3718a72dbdbd","event_id":"83134f08-9f3f-4e86-9834-81a05acfc056","claim_text":"DNA analysis strengthens evidence that Thomas Jefferson fathered children with Sally Hemings","claim_type":"outcome","claim_status":"supported","confidence_score":null,"created_at":"2026-09-22T21:01:02.044Z","updated_at":"2026-09-22T21:01:02.044Z"}],"revisions":[{"id":"07a18413-bf4f-4120-80b4-15a9665a1afc","event_id":"83134f08-9f3f-4e86-9834-81a05acfc056","model_id":null,"previous_score":"0.000000","new_score":"0.001000","previous_factors":{},"new_factors":{"tier":1,"evidence":0.1,"base_score":1,"durability":0.5,"attribution":0.1,"realization":0.2},"change_reason":"Auto-published from news ingest.","trigger_type":"news_ingest","trigger_source_ids":null,"reviewer_id":null,"review_status":"published","created_at":"2026-09-22T21:01:02.052Z"}],"secondary":[]},"methodology_version":"0.1"}