{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:IQNG2737QOKUVCVHJNRNDYB7K5","short_pith_number":"pith:IQNG2737","schema_version":"1.0","canonical_sha256":"441a6d7f7f83954a8aa74b62d1e03f5764a13d59c02933ec4c1347b9b032065c","source":{"kind":"arxiv","id":"1308.4589","version":2},"attestation_state":"computed","paper":{"title":"A study of gravity-linked metapopulation models for the spatial spread of dengue fever","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["q-bio.PE"],"primary_cat":"stat.AP","authors_text":"Marta Sarzynska, Na Zhang, Oyita Udiani","submitted_at":"2013-08-20T10:46:35Z","abstract_excerpt":"Metapopulation (multipatch) models are widely used to study the patterns of spatial spread of epidemics. In this paper we study the impact of inter-patch connection weights on the predictions of these models. We contrast arbitrary, uniform link weights with link weights predicted using a gravity model based on patch populations and distance. In a synthetic system with one large driver city and many small follower cities, we show that under uniform link weights, epidemics in the follower regions are perfectly synchronized. In contrast, gravity-based links allow a more realistic, less synchroniz"},"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":"1308.4589","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2013-08-20T10:46:35Z","cross_cats_sorted":["q-bio.PE"],"title_canon_sha256":"983519b58dba3145e7cb868e2f7363d0c34e35dd9a63abff61c858955e05b77b","abstract_canon_sha256":"bb0573a00ccf93cb1843341b964e1abbf0caaf083b4d58f68498a498cc554c07"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:15:17.813810Z","signature_b64":"3COlCQfoEYCuuUkVA6hGvkI4pHb2FfCERPqdVj03O6a7VPcTPafWqVlqzGQm/0FlKInAUv2bnB9HMH8/iYEKCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"441a6d7f7f83954a8aa74b62d1e03f5764a13d59c02933ec4c1347b9b032065c","last_reissued_at":"2026-05-18T03:15:17.813199Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:15:17.813199Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A study of gravity-linked metapopulation models for the spatial spread of dengue fever","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["q-bio.PE"],"primary_cat":"stat.AP","authors_text":"Marta Sarzynska, Na Zhang, Oyita Udiani","submitted_at":"2013-08-20T10:46:35Z","abstract_excerpt":"Metapopulation (multipatch) models are widely used to study the patterns of spatial spread of epidemics. In this paper we study the impact of inter-patch connection weights on the predictions of these models. We contrast arbitrary, uniform link weights with link weights predicted using a gravity model based on patch populations and distance. In a synthetic system with one large driver city and many small follower cities, we show that under uniform link weights, epidemics in the follower regions are perfectly synchronized. In contrast, gravity-based links allow a more realistic, less synchroniz"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.4589","kind":"arxiv","version":2},"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":"1308.4589","created_at":"2026-05-18T03:15:17.813302+00:00"},{"alias_kind":"arxiv_version","alias_value":"1308.4589v2","created_at":"2026-05-18T03:15:17.813302+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.4589","created_at":"2026-05-18T03:15:17.813302+00:00"},{"alias_kind":"pith_short_12","alias_value":"IQNG2737QOKU","created_at":"2026-05-18T12:27:46.883200+00:00"},{"alias_kind":"pith_short_16","alias_value":"IQNG2737QOKUVCVH","created_at":"2026-05-18T12:27:46.883200+00:00"},{"alias_kind":"pith_short_8","alias_value":"IQNG2737","created_at":"2026-05-18T12:27:46.883200+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/IQNG2737QOKUVCVHJNRNDYB7K5","json":"https://pith.science/pith/IQNG2737QOKUVCVHJNRNDYB7K5.json","graph_json":"https://pith.science/api/pith-number/IQNG2737QOKUVCVHJNRNDYB7K5/graph.json","events_json":"https://pith.science/api/pith-number/IQNG2737QOKUVCVHJNRNDYB7K5/events.json","paper":"https://pith.science/paper/IQNG2737"},"agent_actions":{"view_html":"https://pith.science/pith/IQNG2737QOKUVCVHJNRNDYB7K5","download_json":"https://pith.science/pith/IQNG2737QOKUVCVHJNRNDYB7K5.json","view_paper":"https://pith.science/paper/IQNG2737","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1308.4589&json=true","fetch_graph":"https://pith.science/api/pith-number/IQNG2737QOKUVCVHJNRNDYB7K5/graph.json","fetch_events":"https://pith.science/api/pith-number/IQNG2737QOKUVCVHJNRNDYB7K5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/IQNG2737QOKUVCVHJNRNDYB7K5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/IQNG2737QOKUVCVHJNRNDYB7K5/action/storage_attestation","attest_author":"https://pith.science/pith/IQNG2737QOKUVCVHJNRNDYB7K5/action/author_attestation","sign_citation":"https://pith.science/pith/IQNG2737QOKUVCVHJNRNDYB7K5/action/citation_signature","submit_replication":"https://pith.science/pith/IQNG2737QOKUVCVHJNRNDYB7K5/action/replication_record"}},"created_at":"2026-05-18T03:15:17.813302+00:00","updated_at":"2026-05-18T03:15:17.813302+00:00"}