{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:XLWJ4CKOOFU76IO7RMW35TPUTA","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"c626c4bbf05c27b6c8999601f24750bd01baea4707fbbc1fdd0d0d8f058ecd32","cross_cats_sorted":["math-ph","math.MP","math.PR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2011-03-23T20:23:11Z","title_canon_sha256":"20390f6610bcaf16f09fb83ef932e8243655f06c678f20e7748491ac18c234c6"},"schema_version":"1.0","source":{"id":"1103.4621","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.4621","created_at":"2026-05-18T04:20:49Z"},{"alias_kind":"arxiv_version","alias_value":"1103.4621v2","created_at":"2026-05-18T04:20:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.4621","created_at":"2026-05-18T04:20:49Z"},{"alias_kind":"pith_short_12","alias_value":"XLWJ4CKOOFU7","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"XLWJ4CKOOFU76IO7","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"XLWJ4CKO","created_at":"2026-05-18T12:26:47Z"}],"graph_snapshots":[{"event_id":"sha256:6e65bf600a89895f558a4e26bc0843c6fff31dceec01f07036aeb67b609455d3","target":"graph","created_at":"2026-05-18T04:20:49Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Considering the recent experimental discovery of Green et al that present day non-Africans have 1 to 4% of their nuclear DNA of Neanderthal origin, we propose here a model which is able to quantify the interbreeding events between Africans and Neanderthals at the time they coexisted in the Middle East. The model consists of a solvable system of deterministic ordinary differential equations containing as a stochastic ingredient a realization of the neutral Wright-Fisher drift process. By simulating the stochastic part of the model we are able to apply it to the interbreeding of African and Nean","authors_text":"Armando G. M. Neves, Maurizio Serva","cross_cats":["math-ph","math.MP","math.PR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2011-03-23T20:23:11Z","title":"Extremely rare interbreeding events can explain Neanderthal DNA in modern humans"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.4621","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:17a90fd340de72d016a9828bdd9d9ba9f4dd2484d112d1197a6439cd3a87d490","target":"record","created_at":"2026-05-18T04:20:49Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"c626c4bbf05c27b6c8999601f24750bd01baea4707fbbc1fdd0d0d8f058ecd32","cross_cats_sorted":["math-ph","math.MP","math.PR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2011-03-23T20:23:11Z","title_canon_sha256":"20390f6610bcaf16f09fb83ef932e8243655f06c678f20e7748491ac18c234c6"},"schema_version":"1.0","source":{"id":"1103.4621","kind":"arxiv","version":2}},"canonical_sha256":"baec9e094e7169ff21df8b2dbecdf498157b30e0a1e6da302e843ad6a840c2c8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"baec9e094e7169ff21df8b2dbecdf498157b30e0a1e6da302e843ad6a840c2c8","first_computed_at":"2026-05-18T04:20:49.556260Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:20:49.556260Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9d3ihoqp2iGuaxAiOjr8d13IyQHpJX/7C6G3X6DpojA7CwlksfUuFSPi168he/usDdGgmnbjfX9jLLuGRqezAw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:20:49.557004Z","signed_message":"canonical_sha256_bytes"},"source_id":"1103.4621","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:17a90fd340de72d016a9828bdd9d9ba9f4dd2484d112d1197a6439cd3a87d490","sha256:6e65bf600a89895f558a4e26bc0843c6fff31dceec01f07036aeb67b609455d3"],"state_sha256":"6a6bc8f8936723f603d4f32893b53540530cab8f462770c327c6ae862574bbdf"}