{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:YFAN2FDS4I7ABYMOE6ID5KSKAO","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":"3303b931b2cc5f5421a03b7f275d80de8eb1ed97e3e2745661728393dc805412","cross_cats_sorted":["q-bio.PE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2019-03-18T18:20:01Z","title_canon_sha256":"645579394eca892720b5300519e09f11469d4bb9e8dd2346fdcab7537ce8d367"},"schema_version":"1.0","source":{"id":"1903.07649","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.07649","created_at":"2026-05-17T23:50:54Z"},{"alias_kind":"arxiv_version","alias_value":"1903.07649v1","created_at":"2026-05-17T23:50:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.07649","created_at":"2026-05-17T23:50:54Z"},{"alias_kind":"pith_short_12","alias_value":"YFAN2FDS4I7A","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"YFAN2FDS4I7ABYMO","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"YFAN2FDS","created_at":"2026-05-18T12:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:312639d6a65a0e12424d86dc0b7e00bb93755140f4a978ebbd410a177583c5af","target":"graph","created_at":"2026-05-17T23:50:54Z","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":"Emerging research suggests that the extent to which activity spaces -- the collection of an individual's routine activity locations -- overlap provides important information about the functioning of a city and its neighborhoods. To study patterns of overlapping activity spaces, we draw on the notion of an ecological network, a type of two-mode network with the two modes being individuals and the geographic locations where individuals perform routine activities. We describe a method for detecting \"ecological communities\" within these networks based on shared activity locations among individuals","authors_text":"Catherine A. Calder, Christopher R. Browning, Wenna Xi","cross_cats":["q-bio.PE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2019-03-18T18:20:01Z","title":"Beyond Activity Space: Detecting Communities in Ecological Networks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.07649","kind":"arxiv","version":1},"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:c09b8a6c44fc70a6b04c20e6155706fd96a157399a5ce297bc6788c719ec3b0b","target":"record","created_at":"2026-05-17T23:50:54Z","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":"3303b931b2cc5f5421a03b7f275d80de8eb1ed97e3e2745661728393dc805412","cross_cats_sorted":["q-bio.PE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2019-03-18T18:20:01Z","title_canon_sha256":"645579394eca892720b5300519e09f11469d4bb9e8dd2346fdcab7537ce8d367"},"schema_version":"1.0","source":{"id":"1903.07649","kind":"arxiv","version":1}},"canonical_sha256":"c140dd1472e23e00e18e27903eaa4a0381c3166d7e071bdd785ef7160783382b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c140dd1472e23e00e18e27903eaa4a0381c3166d7e071bdd785ef7160783382b","first_computed_at":"2026-05-17T23:50:54.477640Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:50:54.477640Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"J5SH7Hi6T9tBaTh97yjs+aFrYIPMCkCY6ita38u7R0/oH+hG2M/82tJY1iMso1QL7ManmDPP68AidVfzqj6SDw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:50:54.478214Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.07649","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c09b8a6c44fc70a6b04c20e6155706fd96a157399a5ce297bc6788c719ec3b0b","sha256:312639d6a65a0e12424d86dc0b7e00bb93755140f4a978ebbd410a177583c5af"],"state_sha256":"73b0586fb6643a79f8d57d53d1cd0111aec77a49f5a97322a6e88c0c1b40a1de"}