{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:EEUHUIXXTXKUZFFYLC46CWG6CX","short_pith_number":"pith:EEUHUIXX","canonical_record":{"source":{"id":"2211.11292","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2022-11-21T09:33:33Z","cross_cats_sorted":["physics.geo-ph"],"title_canon_sha256":"1dc4e913bb2b903cda1d539ae3ab278fdf81b4b472af290dfdabc33331a0ef19","abstract_canon_sha256":"5f298d4dc51b550fff0e4782a422a5e9913f1570707a5938d5ca075cc331ed21"},"schema_version":"1.0"},"canonical_sha256":"21287a22f79dd54c94b858b9e158de15dbf251bf47cef1b4265697fc3c383fb4","source":{"kind":"arxiv","id":"2211.11292","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2211.11292","created_at":"2026-07-05T05:17:52Z"},{"alias_kind":"arxiv_version","alias_value":"2211.11292v1","created_at":"2026-07-05T05:17:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2211.11292","created_at":"2026-07-05T05:17:52Z"},{"alias_kind":"pith_short_12","alias_value":"EEUHUIXXTXKU","created_at":"2026-07-05T05:17:52Z"},{"alias_kind":"pith_short_16","alias_value":"EEUHUIXXTXKUZFFY","created_at":"2026-07-05T05:17:52Z"},{"alias_kind":"pith_short_8","alias_value":"EEUHUIXX","created_at":"2026-07-05T05:17:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:EEUHUIXXTXKUZFFYLC46CWG6CX","target":"record","payload":{"canonical_record":{"source":{"id":"2211.11292","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2022-11-21T09:33:33Z","cross_cats_sorted":["physics.geo-ph"],"title_canon_sha256":"1dc4e913bb2b903cda1d539ae3ab278fdf81b4b472af290dfdabc33331a0ef19","abstract_canon_sha256":"5f298d4dc51b550fff0e4782a422a5e9913f1570707a5938d5ca075cc331ed21"},"schema_version":"1.0"},"canonical_sha256":"21287a22f79dd54c94b858b9e158de15dbf251bf47cef1b4265697fc3c383fb4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:17:52.059651Z","signature_b64":"meUrnE/+ZcuOxzT5d+qOQdmtLo+8WOxkmt7RneqB4+zXyGSzPoa0oQcCw0Jc1eYsmx9UzQm9Z3nxEF/us+h7BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"21287a22f79dd54c94b858b9e158de15dbf251bf47cef1b4265697fc3c383fb4","last_reissued_at":"2026-07-05T05:17:52.059240Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:17:52.059240Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2211.11292","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:17:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qKju41M93wZtq+9JlFgEzUhrKu3651S1sHU3QpieEDFBaLzKQtYcY4aV+CrPNWHl5VwmOviQGlkFRrKvf/ozAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-21T01:25:16.322963Z"},"content_sha256":"2469b0b6fbcedf6c27034500338e5f39558f0e1e5cc576d29a0186fbc45c2c66","schema_version":"1.0","event_id":"sha256:2469b0b6fbcedf6c27034500338e5f39558f0e1e5cc576d29a0186fbc45c2c66"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:EEUHUIXXTXKUZFFYLC46CWG6CX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Revealing intra-urban spatial structure through an exploratory analysis by combining road network abstraction model and taxi trajectory data","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.geo-ph"],"primary_cat":"cs.SI","authors_text":"Liang Wu, Sheng Hu, Song Gao, Tianqi Li, Wei Luo, Yongyang Xu, Ziwei Zhang","submitted_at":"2022-11-21T09:33:33Z","abstract_excerpt":"The unprecedented urbanization in China has dramatically changed the urban spatial structure of cities. With the proliferation of individual-level geospatial big data, previous studies have widely used the network abstraction model to reveal the underlying urban spatial structure. However, the construction of network abstraction models primarily focuses on the topology of the road network without considering individual travel flows along with the road networks. Individual travel flows reflect the urban dynamics, which can further help understand the underlying spatial structure. This study the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.11292","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2211.11292/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:17:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"o5sHFU/J3gjBTn8OsguNPLETSAcDG+1BbKGDfk9RER3vIcPOsv7gWWK5HkTg7Hvnop1lgMOZMswUXG4mnv/sAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-21T01:25:16.323561Z"},"content_sha256":"1d153f6d65c763c0bea12f6236db40f12c0da03279a676c59ca5ef74c98bc281","schema_version":"1.0","event_id":"sha256:1d153f6d65c763c0bea12f6236db40f12c0da03279a676c59ca5ef74c98bc281"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EEUHUIXXTXKUZFFYLC46CWG6CX/bundle.json","state_url":"https://pith.science/pith/EEUHUIXXTXKUZFFYLC46CWG6CX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EEUHUIXXTXKUZFFYLC46CWG6CX/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-07-21T01:25:16Z","links":{"resolver":"https://pith.science/pith/EEUHUIXXTXKUZFFYLC46CWG6CX","bundle":"https://pith.science/pith/EEUHUIXXTXKUZFFYLC46CWG6CX/bundle.json","state":"https://pith.science/pith/EEUHUIXXTXKUZFFYLC46CWG6CX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EEUHUIXXTXKUZFFYLC46CWG6CX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:EEUHUIXXTXKUZFFYLC46CWG6CX","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":"5f298d4dc51b550fff0e4782a422a5e9913f1570707a5938d5ca075cc331ed21","cross_cats_sorted":["physics.geo-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2022-11-21T09:33:33Z","title_canon_sha256":"1dc4e913bb2b903cda1d539ae3ab278fdf81b4b472af290dfdabc33331a0ef19"},"schema_version":"1.0","source":{"id":"2211.11292","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2211.11292","created_at":"2026-07-05T05:17:52Z"},{"alias_kind":"arxiv_version","alias_value":"2211.11292v1","created_at":"2026-07-05T05:17:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2211.11292","created_at":"2026-07-05T05:17:52Z"},{"alias_kind":"pith_short_12","alias_value":"EEUHUIXXTXKU","created_at":"2026-07-05T05:17:52Z"},{"alias_kind":"pith_short_16","alias_value":"EEUHUIXXTXKUZFFY","created_at":"2026-07-05T05:17:52Z"},{"alias_kind":"pith_short_8","alias_value":"EEUHUIXX","created_at":"2026-07-05T05:17:52Z"}],"graph_snapshots":[{"event_id":"sha256:1d153f6d65c763c0bea12f6236db40f12c0da03279a676c59ca5ef74c98bc281","target":"graph","created_at":"2026-07-05T05:17:52Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2211.11292/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The unprecedented urbanization in China has dramatically changed the urban spatial structure of cities. With the proliferation of individual-level geospatial big data, previous studies have widely used the network abstraction model to reveal the underlying urban spatial structure. However, the construction of network abstraction models primarily focuses on the topology of the road network without considering individual travel flows along with the road networks. Individual travel flows reflect the urban dynamics, which can further help understand the underlying spatial structure. This study the","authors_text":"Liang Wu, Sheng Hu, Song Gao, Tianqi Li, Wei Luo, Yongyang Xu, Ziwei Zhang","cross_cats":["physics.geo-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2022-11-21T09:33:33Z","title":"Revealing intra-urban spatial structure through an exploratory analysis by combining road network abstraction model and taxi trajectory data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.11292","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":"sha256:2469b0b6fbcedf6c27034500338e5f39558f0e1e5cc576d29a0186fbc45c2c66","target":"record","created_at":"2026-07-05T05:17:52Z","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":"5f298d4dc51b550fff0e4782a422a5e9913f1570707a5938d5ca075cc331ed21","cross_cats_sorted":["physics.geo-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2022-11-21T09:33:33Z","title_canon_sha256":"1dc4e913bb2b903cda1d539ae3ab278fdf81b4b472af290dfdabc33331a0ef19"},"schema_version":"1.0","source":{"id":"2211.11292","kind":"arxiv","version":1}},"canonical_sha256":"21287a22f79dd54c94b858b9e158de15dbf251bf47cef1b4265697fc3c383fb4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"21287a22f79dd54c94b858b9e158de15dbf251bf47cef1b4265697fc3c383fb4","first_computed_at":"2026-07-05T05:17:52.059240Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:17:52.059240Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"meUrnE/+ZcuOxzT5d+qOQdmtLo+8WOxkmt7RneqB4+zXyGSzPoa0oQcCw0Jc1eYsmx9UzQm9Z3nxEF/us+h7BQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:17:52.059651Z","signed_message":"canonical_sha256_bytes"},"source_id":"2211.11292","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2469b0b6fbcedf6c27034500338e5f39558f0e1e5cc576d29a0186fbc45c2c66","sha256:1d153f6d65c763c0bea12f6236db40f12c0da03279a676c59ca5ef74c98bc281"],"state_sha256":"df8381c041db6a4aa0a18b191a07142d3b0506f62af6f2232d3e0f3148a2c7f1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/KxtN6h+R3saADZIh8RfO16CnfI2vPJVSOwh/trdEds5s+CHec++hay8H9PiEwfolWZzfS8wGXf56fRUaSS9DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-21T01:25:16.326694Z","bundle_sha256":"efcaff4909b76c2b70a3682888bb5cecf236a0084af8ab8039da39653da1f903"}}