{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:W7N74LVFJZK6I76JZVA6GO7M5K","short_pith_number":"pith:W7N74LVF","schema_version":"1.0","canonical_sha256":"b7dbfe2ea54e55e47fc9cd41e33becea994c344946b4dc6281310a9d90f95c35","source":{"kind":"arxiv","id":"1209.0725","version":1},"attestation_state":"computed","paper":{"title":"Throughflow centrality is a global indicator of the functional importance of species in ecosystems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.soc-ph","q-bio.PE"],"primary_cat":"q-bio.QM","authors_text":"Stuart R. Borrett","submitted_at":"2012-09-04T18:41:13Z","abstract_excerpt":"To better understand and manage complex systems like ecosystems it is critical to know the relative contribution of system components to system functioning. Ecologists and social scientists have described many ways that individuals can be important; This paper makes two key contributions to this research area. First, it shows that throughflow, the total energy-matter entering or exiting a system component, is a global indicator of the relative contribution of the component to the whole system activity. It is global because it includes the direct and indirect exchanges among community members. "},"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":"1209.0725","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.QM","submitted_at":"2012-09-04T18:41:13Z","cross_cats_sorted":["physics.soc-ph","q-bio.PE"],"title_canon_sha256":"9d139ccc795fba6201b484a21ea95986a0a3efd31aca3e1a496da4052af220c7","abstract_canon_sha256":"a0868f8fab8f02f6a97ab239af21a527aaf8bee53dd582b64ba9022e3f736898"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:27:23.017660Z","signature_b64":"C0zkudt9oqexUphh0w5/bxPxz4v6YdCZ3s+kJzYaQTVtFkjuJ6KHDGz6H0rU3/S0GKQzNlxZqANy/8WCj9fLCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b7dbfe2ea54e55e47fc9cd41e33becea994c344946b4dc6281310a9d90f95c35","last_reissued_at":"2026-05-18T03:27:23.017195Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:27:23.017195Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Throughflow centrality is a global indicator of the functional importance of species in ecosystems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.soc-ph","q-bio.PE"],"primary_cat":"q-bio.QM","authors_text":"Stuart R. Borrett","submitted_at":"2012-09-04T18:41:13Z","abstract_excerpt":"To better understand and manage complex systems like ecosystems it is critical to know the relative contribution of system components to system functioning. Ecologists and social scientists have described many ways that individuals can be important; This paper makes two key contributions to this research area. First, it shows that throughflow, the total energy-matter entering or exiting a system component, is a global indicator of the relative contribution of the component to the whole system activity. It is global because it includes the direct and indirect exchanges among community members. "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.0725","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":"1209.0725","created_at":"2026-05-18T03:27:23.017260+00:00"},{"alias_kind":"arxiv_version","alias_value":"1209.0725v1","created_at":"2026-05-18T03:27:23.017260+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.0725","created_at":"2026-05-18T03:27:23.017260+00:00"},{"alias_kind":"pith_short_12","alias_value":"W7N74LVFJZK6","created_at":"2026-05-18T12:27:25.539911+00:00"},{"alias_kind":"pith_short_16","alias_value":"W7N74LVFJZK6I76J","created_at":"2026-05-18T12:27:25.539911+00:00"},{"alias_kind":"pith_short_8","alias_value":"W7N74LVF","created_at":"2026-05-18T12:27:25.539911+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/W7N74LVFJZK6I76JZVA6GO7M5K","json":"https://pith.science/pith/W7N74LVFJZK6I76JZVA6GO7M5K.json","graph_json":"https://pith.science/api/pith-number/W7N74LVFJZK6I76JZVA6GO7M5K/graph.json","events_json":"https://pith.science/api/pith-number/W7N74LVFJZK6I76JZVA6GO7M5K/events.json","paper":"https://pith.science/paper/W7N74LVF"},"agent_actions":{"view_html":"https://pith.science/pith/W7N74LVFJZK6I76JZVA6GO7M5K","download_json":"https://pith.science/pith/W7N74LVFJZK6I76JZVA6GO7M5K.json","view_paper":"https://pith.science/paper/W7N74LVF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1209.0725&json=true","fetch_graph":"https://pith.science/api/pith-number/W7N74LVFJZK6I76JZVA6GO7M5K/graph.json","fetch_events":"https://pith.science/api/pith-number/W7N74LVFJZK6I76JZVA6GO7M5K/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/W7N74LVFJZK6I76JZVA6GO7M5K/action/timestamp_anchor","attest_storage":"https://pith.science/pith/W7N74LVFJZK6I76JZVA6GO7M5K/action/storage_attestation","attest_author":"https://pith.science/pith/W7N74LVFJZK6I76JZVA6GO7M5K/action/author_attestation","sign_citation":"https://pith.science/pith/W7N74LVFJZK6I76JZVA6GO7M5K/action/citation_signature","submit_replication":"https://pith.science/pith/W7N74LVFJZK6I76JZVA6GO7M5K/action/replication_record"}},"created_at":"2026-05-18T03:27:23.017260+00:00","updated_at":"2026-05-18T03:27:23.017260+00:00"}