{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:BYZDBTNNO6DABLKOI43YLXP4CZ","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":"d28bb12ff3e905f33ecdbe748d3a412bea67a1e74dce2775481c70d515b7e405","cross_cats_sorted":["physics.data-an"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2015-09-30T23:29:55Z","title_canon_sha256":"44dbe369f92da092c58b1545a1d52509c09cd48d5eb11d29993d1e187c95f9c3"},"schema_version":"1.0","source":{"id":"1510.00074","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.00074","created_at":"2026-05-18T01:31:10Z"},{"alias_kind":"arxiv_version","alias_value":"1510.00074v1","created_at":"2026-05-18T01:31:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.00074","created_at":"2026-05-18T01:31:10Z"},{"alias_kind":"pith_short_12","alias_value":"BYZDBTNNO6DA","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"BYZDBTNNO6DABLKO","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"BYZDBTNN","created_at":"2026-05-18T12:29:14Z"}],"graph_snapshots":[{"event_id":"sha256:33a22330b6aa527ce23c3884e2625b14a22be3d612ec3c4f8a4102eddcf6449c","target":"graph","created_at":"2026-05-18T01:31:10Z","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":"Transportation planning is strongly influenced by the assumption that every individual has for his daily mobility a constant daily budget of ~1 hour. However, recent experimental results are proving this assumption as wrong. Here, we study the differences in daily travel-time expenditures among 24 Italian cities, extracted from a large set of GPS data on vehicles mobility. To understand these variations at the level of individual behaviour, we introduce a trip duration model that allows for a description of the distribution of travel-time expenditures in a given city using two parameters. The ","authors_text":"Armando Bazzani, Riccardo Gallotti, Sandro Rambaldi","cross_cats":["physics.data-an"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2015-09-30T23:29:55Z","title":"Understanding the variability of daily travel-time expenditures using GPS trajectory data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.00074","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:c0e8bb951e5dd59c4dd98ba2b779159772c208321d09df8bc1b2891d85b766c3","target":"record","created_at":"2026-05-18T01:31:10Z","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":"d28bb12ff3e905f33ecdbe748d3a412bea67a1e74dce2775481c70d515b7e405","cross_cats_sorted":["physics.data-an"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2015-09-30T23:29:55Z","title_canon_sha256":"44dbe369f92da092c58b1545a1d52509c09cd48d5eb11d29993d1e187c95f9c3"},"schema_version":"1.0","source":{"id":"1510.00074","kind":"arxiv","version":1}},"canonical_sha256":"0e3230cdad778600ad4e473785ddfc1654591a35eb7782f8c7f27478b4a59582","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0e3230cdad778600ad4e473785ddfc1654591a35eb7782f8c7f27478b4a59582","first_computed_at":"2026-05-18T01:31:10.371807Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:31:10.371807Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kzc5x/e5D79bST6F3a3zUYw8Ulm4QclN692DmatGI7wzaZkF+IymiyIVr50p83Qz/kIXfVteWGaeLe4uZDW4Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:31:10.372292Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.00074","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c0e8bb951e5dd59c4dd98ba2b779159772c208321d09df8bc1b2891d85b766c3","sha256:33a22330b6aa527ce23c3884e2625b14a22be3d612ec3c4f8a4102eddcf6449c"],"state_sha256":"c97053ff80a3e05ba43223cd46fa286c33240414f2d32f443c072330938f3842"}