{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:QWJH3263R2WL37MSXUUFYY2EVE","short_pith_number":"pith:QWJH3263","schema_version":"1.0","canonical_sha256":"85927debdb8eacbdfd92bd285c6344a921c8c2054a6a3a4aa3977169c08f4e45","source":{"kind":"arxiv","id":"1710.03606","version":1},"attestation_state":"computed","paper":{"title":"Marginally Stable Equilibria in Critical Ecosystems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["q-bio.PE"],"primary_cat":"cond-mat.stat-mech","authors_text":"Chiara Cammarota, Giulio Biroli, Guy Bunin","submitted_at":"2017-10-10T13:56:47Z","abstract_excerpt":"In this work we study the stability of the equilibria reached by ecosystems formed by a large number of species. The model we focus on are Lotka-Volterra equations with symmetric random interactions. Our theoretical analysis, confirmed by our numerical studies, shows that for strong and heterogeneous interactions the system displays multiple equilibria which are all marginally stable. This property allows us to obtain general identities between diversity and single species responses, which generalize and saturate May's bound. By connecting the model to systems studied in condensed matter physi"},"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":"1710.03606","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2017-10-10T13:56:47Z","cross_cats_sorted":["q-bio.PE"],"title_canon_sha256":"eeb4691e3ba81f05da87644e2ec87a38e425e32fa9c0e250de146f5926b3a216","abstract_canon_sha256":"5ef1ecc95121a44fb0638f21da60b16d48990c62005d600a549b61686e32f1dc"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:05:00.240332Z","signature_b64":"Fp6TwhgIiBnHcIdBRqpreGyjNe01Arezwjz+jpvRn0qff/M3tvC4FyV7yft9aKmvVzZ/NHlvb7JGuOdQx12ZDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"85927debdb8eacbdfd92bd285c6344a921c8c2054a6a3a4aa3977169c08f4e45","last_reissued_at":"2026-05-18T00:05:00.239907Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:05:00.239907Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Marginally Stable Equilibria in Critical Ecosystems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["q-bio.PE"],"primary_cat":"cond-mat.stat-mech","authors_text":"Chiara Cammarota, Giulio Biroli, Guy Bunin","submitted_at":"2017-10-10T13:56:47Z","abstract_excerpt":"In this work we study the stability of the equilibria reached by ecosystems formed by a large number of species. The model we focus on are Lotka-Volterra equations with symmetric random interactions. Our theoretical analysis, confirmed by our numerical studies, shows that for strong and heterogeneous interactions the system displays multiple equilibria which are all marginally stable. This property allows us to obtain general identities between diversity and single species responses, which generalize and saturate May's bound. By connecting the model to systems studied in condensed matter physi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.03606","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":"1710.03606","created_at":"2026-05-18T00:05:00.239965+00:00"},{"alias_kind":"arxiv_version","alias_value":"1710.03606v1","created_at":"2026-05-18T00:05:00.239965+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.03606","created_at":"2026-05-18T00:05:00.239965+00:00"},{"alias_kind":"pith_short_12","alias_value":"QWJH3263R2WL","created_at":"2026-05-18T12:31:39.905425+00:00"},{"alias_kind":"pith_short_16","alias_value":"QWJH3263R2WL37MS","created_at":"2026-05-18T12:31:39.905425+00:00"},{"alias_kind":"pith_short_8","alias_value":"QWJH3263","created_at":"2026-05-18T12:31:39.905425+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/QWJH3263R2WL37MSXUUFYY2EVE","json":"https://pith.science/pith/QWJH3263R2WL37MSXUUFYY2EVE.json","graph_json":"https://pith.science/api/pith-number/QWJH3263R2WL37MSXUUFYY2EVE/graph.json","events_json":"https://pith.science/api/pith-number/QWJH3263R2WL37MSXUUFYY2EVE/events.json","paper":"https://pith.science/paper/QWJH3263"},"agent_actions":{"view_html":"https://pith.science/pith/QWJH3263R2WL37MSXUUFYY2EVE","download_json":"https://pith.science/pith/QWJH3263R2WL37MSXUUFYY2EVE.json","view_paper":"https://pith.science/paper/QWJH3263","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1710.03606&json=true","fetch_graph":"https://pith.science/api/pith-number/QWJH3263R2WL37MSXUUFYY2EVE/graph.json","fetch_events":"https://pith.science/api/pith-number/QWJH3263R2WL37MSXUUFYY2EVE/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QWJH3263R2WL37MSXUUFYY2EVE/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QWJH3263R2WL37MSXUUFYY2EVE/action/storage_attestation","attest_author":"https://pith.science/pith/QWJH3263R2WL37MSXUUFYY2EVE/action/author_attestation","sign_citation":"https://pith.science/pith/QWJH3263R2WL37MSXUUFYY2EVE/action/citation_signature","submit_replication":"https://pith.science/pith/QWJH3263R2WL37MSXUUFYY2EVE/action/replication_record"}},"created_at":"2026-05-18T00:05:00.239965+00:00","updated_at":"2026-05-18T00:05:00.239965+00:00"}