{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:6LGAPH357D6P6FRFYTMHR3GSZU","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":"866044c0bc0e3fcb5d978ac6a05ded787b1f7f56bc2a3c04e7d04b7124b9453e","cross_cats_sorted":["physics.soc-ph","q-bio.PE"],"license":"","primary_cat":"cond-mat.other","submitted_at":"2005-03-17T06:55:54Z","title_canon_sha256":"1096291ecd2bbbfcfb4822c19c21805675d3bc81dae6caf38f98b73ceea19970"},"schema_version":"1.0","source":{"id":"cond-mat/0503421","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0503421","created_at":"2026-05-18T04:39:19Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0503421v2","created_at":"2026-05-18T04:39:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0503421","created_at":"2026-05-18T04:39:19Z"},{"alias_kind":"pith_short_12","alias_value":"6LGAPH357D6P","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"6LGAPH357D6P6FRF","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"6LGAPH35","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:213d1df768040929a900d5da7e045b51d18b0dff9eb2205a1500ef27ae4d796f","target":"graph","created_at":"2026-05-18T04:39:19Z","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":"In the present work we extend the Bak-Sneppen model for biological evolution by introducing local interactions between species. This ``environmental'' perturbation can modify the intrinsic fitness of each element of the ecology, leading to higher survival probability, even for the less fit. While the system still self-organizes toward a critical state, the distribution of fitness broadens, losing the classical step-function shape. A possible application in economics is discussed, where firms are represented like evolving species linked by mutual interests.","authors_text":"A. W. Thomas, D. B. Leinweber, M. Bartolozzi","cross_cats":["physics.soc-ph","q-bio.PE"],"headline":"","license":"","primary_cat":"cond-mat.other","submitted_at":"2005-03-17T06:55:54Z","title":"Influence of Local Interactions in the Bak-Sneppen Model and Economic Applications"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0503421","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:f24992e0ce8665a3034b518d12934e0f51e71a7adf2599e5d2ab6585d04b51b2","target":"record","created_at":"2026-05-18T04:39:19Z","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":"866044c0bc0e3fcb5d978ac6a05ded787b1f7f56bc2a3c04e7d04b7124b9453e","cross_cats_sorted":["physics.soc-ph","q-bio.PE"],"license":"","primary_cat":"cond-mat.other","submitted_at":"2005-03-17T06:55:54Z","title_canon_sha256":"1096291ecd2bbbfcfb4822c19c21805675d3bc81dae6caf38f98b73ceea19970"},"schema_version":"1.0","source":{"id":"cond-mat/0503421","kind":"arxiv","version":2}},"canonical_sha256":"f2cc079f7df8fcff1625c4d878ecd2cd3ea86d7fcb88c2f6813ad8009224d570","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f2cc079f7df8fcff1625c4d878ecd2cd3ea86d7fcb88c2f6813ad8009224d570","first_computed_at":"2026-05-18T04:39:19.721013Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:39:19.721013Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8miBPx4fta/yG0AWP1yUa4u1xNI9KzbIUaUnSqxfFhER5Di25uB100pJa8iWm44SiXCqsDxHMv7O/NrBs4PjAg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:39:19.721539Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0503421","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f24992e0ce8665a3034b518d12934e0f51e71a7adf2599e5d2ab6585d04b51b2","sha256:213d1df768040929a900d5da7e045b51d18b0dff9eb2205a1500ef27ae4d796f"],"state_sha256":"b61fb7b32c66b5b46182def61ac01a33cfa3a2b8769dd07755ddea0f7e750eab"}