{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:ZTAENMFS2MPBZB6OAO2JRMRBGF","short_pith_number":"pith:ZTAENMFS","schema_version":"1.0","canonical_sha256":"ccc046b0b2d31e1c87ce03b498b2213179ef6a3644e43a3d872020bdd239e25b","source":{"kind":"arxiv","id":"2605.29874","version":1},"attestation_state":"computed","paper":{"title":"Evolutionary Dynamics of Cooperation in Next-Generation LLM Agent Systems: A Cross-Provider Empirical Extension","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.AI","cs.GT"],"primary_cat":"cs.MA","authors_text":"Francisco Le\\'on Z\\'u\\~niga Bol\\'ivar (Instituci\\'on Universitaria Colegio Mayor del Cauca)","submitted_at":"2026-05-28T12:58:56Z","abstract_excerpt":"Do next-generation LLM agents inherit the cooperative biases documented in their predecessors, or does scale and provider diversity reshape equilibrium behaviour in competitive multi-agent settings? Willis et al. established a benchmark for this question using evolutionary game theory and the Iterated Prisoner's Dilemma (IPD), finding consistent cooperative biases in ChatGPT-4o and Claude 3.5 Sonnet. We extend this benchmark to four frontier models released in 2025-2026 - Claude Sonnet 4.6, Gemini 2.5 Flash, Gemini 3.1 Pro, and GPT-5.4 Mini - applying the identical protocol across three prompt"},"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":"2605.29874","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.MA","submitted_at":"2026-05-28T12:58:56Z","cross_cats_sorted":["cs.AI","cs.GT"],"title_canon_sha256":"26b7fd552bc229245ce896289f496e321802f354d06b616f101a4b4357944d1c","abstract_canon_sha256":"38f5929e056c8672f6c45d35dafa8c0d195a079233dc122c6788b7432f8d9ada"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-29T02:05:57.182451Z","signature_b64":"SW/MqwaIXCVkHtqNFNp1Y3POtxcHP2cuumiItwdnh9GB/clBq3dedIYW6tuXLMXBok7B30OQNhsQ3I91SSOyAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ccc046b0b2d31e1c87ce03b498b2213179ef6a3644e43a3d872020bdd239e25b","last_reissued_at":"2026-05-29T02:05:57.181679Z","signature_status":"signed_v1","first_computed_at":"2026-05-29T02:05:57.181679Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Evolutionary Dynamics of Cooperation in Next-Generation LLM Agent Systems: A Cross-Provider Empirical Extension","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.AI","cs.GT"],"primary_cat":"cs.MA","authors_text":"Francisco Le\\'on Z\\'u\\~niga Bol\\'ivar (Instituci\\'on Universitaria Colegio Mayor del Cauca)","submitted_at":"2026-05-28T12:58:56Z","abstract_excerpt":"Do next-generation LLM agents inherit the cooperative biases documented in their predecessors, or does scale and provider diversity reshape equilibrium behaviour in competitive multi-agent settings? Willis et al. established a benchmark for this question using evolutionary game theory and the Iterated Prisoner's Dilemma (IPD), finding consistent cooperative biases in ChatGPT-4o and Claude 3.5 Sonnet. We extend this benchmark to four frontier models released in 2025-2026 - Claude Sonnet 4.6, Gemini 2.5 Flash, Gemini 3.1 Pro, and GPT-5.4 Mini - applying the identical protocol across three prompt"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.29874","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.29874/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2605.29874","created_at":"2026-05-29T02:05:57.181801+00:00"},{"alias_kind":"arxiv_version","alias_value":"2605.29874v1","created_at":"2026-05-29T02:05:57.181801+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.29874","created_at":"2026-05-29T02:05:57.181801+00:00"},{"alias_kind":"pith_short_12","alias_value":"ZTAENMFS2MPB","created_at":"2026-05-29T02:05:57.181801+00:00"},{"alias_kind":"pith_short_16","alias_value":"ZTAENMFS2MPBZB6O","created_at":"2026-05-29T02:05:57.181801+00:00"},{"alias_kind":"pith_short_8","alias_value":"ZTAENMFS","created_at":"2026-05-29T02:05:57.181801+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/ZTAENMFS2MPBZB6OAO2JRMRBGF","json":"https://pith.science/pith/ZTAENMFS2MPBZB6OAO2JRMRBGF.json","graph_json":"https://pith.science/api/pith-number/ZTAENMFS2MPBZB6OAO2JRMRBGF/graph.json","events_json":"https://pith.science/api/pith-number/ZTAENMFS2MPBZB6OAO2JRMRBGF/events.json","paper":"https://pith.science/paper/ZTAENMFS"},"agent_actions":{"view_html":"https://pith.science/pith/ZTAENMFS2MPBZB6OAO2JRMRBGF","download_json":"https://pith.science/pith/ZTAENMFS2MPBZB6OAO2JRMRBGF.json","view_paper":"https://pith.science/paper/ZTAENMFS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2605.29874&json=true","fetch_graph":"https://pith.science/api/pith-number/ZTAENMFS2MPBZB6OAO2JRMRBGF/graph.json","fetch_events":"https://pith.science/api/pith-number/ZTAENMFS2MPBZB6OAO2JRMRBGF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ZTAENMFS2MPBZB6OAO2JRMRBGF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ZTAENMFS2MPBZB6OAO2JRMRBGF/action/storage_attestation","attest_author":"https://pith.science/pith/ZTAENMFS2MPBZB6OAO2JRMRBGF/action/author_attestation","sign_citation":"https://pith.science/pith/ZTAENMFS2MPBZB6OAO2JRMRBGF/action/citation_signature","submit_replication":"https://pith.science/pith/ZTAENMFS2MPBZB6OAO2JRMRBGF/action/replication_record"}},"created_at":"2026-05-29T02:05:57.181801+00:00","updated_at":"2026-05-29T02:05:57.181801+00:00"}