{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:WI4SKB42BX2AYAWC5L6LGSSX3G","short_pith_number":"pith:WI4SKB42","schema_version":"1.0","canonical_sha256":"b23925079a0df40c02c2eafcb34a57d981db2d134a14b9e79e3cafab090491e0","source":{"kind":"arxiv","id":"1103.4649","version":1},"attestation_state":"computed","paper":{"title":"Change and Aging Senescence as an adaptation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"q-bio.PE","authors_text":"Andr\\'e C. R. Martins","submitted_at":"2011-03-23T23:24:25Z","abstract_excerpt":"Understanding why we age is a long-lived open problem in evolutionary biology. Aging is prejudicial to the individual and evolutionary forces should prevent it, but many species show signs of senescence as individuals age. Here, I will propose a model for aging based on assumptions that are compatible with evolutionary theory: i) competition is between individuals; ii) there is some degree of locality, so quite often competition will between parents and their progeny; iii) optimal conditions are not stationary, mutation helps each species to keep competitive. When conditions change, a senescen"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1103.4649","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2011-03-23T23:24:25Z","cross_cats_sorted":[],"title_canon_sha256":"390ffeaf291d1c82bf3eba44382335366fe159d2c34bb68db14b3e40c364a952","abstract_canon_sha256":"78bfd3672cc388db8816466d5f6dc28193452d413a3155e867eb989881142cb7"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:04:06.801777Z","signature_b64":"RP3ZJUybkh+iqiFyiZtG9KTbPuPKBHE3zz6ZZF5SX0IjfEcpOiKbAZ5nE4oCGnqFq2r0uZ1RN+z5upNKS/xjBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b23925079a0df40c02c2eafcb34a57d981db2d134a14b9e79e3cafab090491e0","last_reissued_at":"2026-05-18T04:04:06.801157Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:04:06.801157Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Change and Aging Senescence as an adaptation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"q-bio.PE","authors_text":"Andr\\'e C. R. Martins","submitted_at":"2011-03-23T23:24:25Z","abstract_excerpt":"Understanding why we age is a long-lived open problem in evolutionary biology. Aging is prejudicial to the individual and evolutionary forces should prevent it, but many species show signs of senescence as individuals age. Here, I will propose a model for aging based on assumptions that are compatible with evolutionary theory: i) competition is between individuals; ii) there is some degree of locality, so quite often competition will between parents and their progeny; iii) optimal conditions are not stationary, mutation helps each species to keep competitive. When conditions change, a senescen"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.4649","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1103.4649","created_at":"2026-05-18T04:04:06.801246+00:00"},{"alias_kind":"arxiv_version","alias_value":"1103.4649v1","created_at":"2026-05-18T04:04:06.801246+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.4649","created_at":"2026-05-18T04:04:06.801246+00:00"},{"alias_kind":"pith_short_12","alias_value":"WI4SKB42BX2A","created_at":"2026-05-18T12:26:44.992195+00:00"},{"alias_kind":"pith_short_16","alias_value":"WI4SKB42BX2AYAWC","created_at":"2026-05-18T12:26:44.992195+00:00"},{"alias_kind":"pith_short_8","alias_value":"WI4SKB42","created_at":"2026-05-18T12:26:44.992195+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/WI4SKB42BX2AYAWC5L6LGSSX3G","json":"https://pith.science/pith/WI4SKB42BX2AYAWC5L6LGSSX3G.json","graph_json":"https://pith.science/api/pith-number/WI4SKB42BX2AYAWC5L6LGSSX3G/graph.json","events_json":"https://pith.science/api/pith-number/WI4SKB42BX2AYAWC5L6LGSSX3G/events.json","paper":"https://pith.science/paper/WI4SKB42"},"agent_actions":{"view_html":"https://pith.science/pith/WI4SKB42BX2AYAWC5L6LGSSX3G","download_json":"https://pith.science/pith/WI4SKB42BX2AYAWC5L6LGSSX3G.json","view_paper":"https://pith.science/paper/WI4SKB42","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1103.4649&json=true","fetch_graph":"https://pith.science/api/pith-number/WI4SKB42BX2AYAWC5L6LGSSX3G/graph.json","fetch_events":"https://pith.science/api/pith-number/WI4SKB42BX2AYAWC5L6LGSSX3G/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/WI4SKB42BX2AYAWC5L6LGSSX3G/action/timestamp_anchor","attest_storage":"https://pith.science/pith/WI4SKB42BX2AYAWC5L6LGSSX3G/action/storage_attestation","attest_author":"https://pith.science/pith/WI4SKB42BX2AYAWC5L6LGSSX3G/action/author_attestation","sign_citation":"https://pith.science/pith/WI4SKB42BX2AYAWC5L6LGSSX3G/action/citation_signature","submit_replication":"https://pith.science/pith/WI4SKB42BX2AYAWC5L6LGSSX3G/action/replication_record"}},"created_at":"2026-05-18T04:04:06.801246+00:00","updated_at":"2026-05-18T04:04:06.801246+00:00"}