{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:W2IP7OTYCUJ67NUIBHJ7GBDE2W","short_pith_number":"pith:W2IP7OTY","canonical_record":{"source":{"id":"1501.03045","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2015-01-03T14:29:20Z","cross_cats_sorted":[],"title_canon_sha256":"8c559db627afc16b7dbc5877a3f30bfca4672c0d7eba1e49088f139c752fd113","abstract_canon_sha256":"86780dbc17e737d9954805469977195df8a2c46ca788149a7c0de6fb34ab87b8"},"schema_version":"1.0"},"canonical_sha256":"b690ffba781513efb68809d3f30464d5a752c27aa4cbb478bfce5ee7e2b2cfa8","source":{"kind":"arxiv","id":"1501.03045","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.03045","created_at":"2026-05-18T02:29:30Z"},{"alias_kind":"arxiv_version","alias_value":"1501.03045v1","created_at":"2026-05-18T02:29:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.03045","created_at":"2026-05-18T02:29:30Z"},{"alias_kind":"pith_short_12","alias_value":"W2IP7OTYCUJ6","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"W2IP7OTYCUJ67NUI","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"W2IP7OTY","created_at":"2026-05-18T12:29:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:W2IP7OTYCUJ67NUIBHJ7GBDE2W","target":"record","payload":{"canonical_record":{"source":{"id":"1501.03045","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2015-01-03T14:29:20Z","cross_cats_sorted":[],"title_canon_sha256":"8c559db627afc16b7dbc5877a3f30bfca4672c0d7eba1e49088f139c752fd113","abstract_canon_sha256":"86780dbc17e737d9954805469977195df8a2c46ca788149a7c0de6fb34ab87b8"},"schema_version":"1.0"},"canonical_sha256":"b690ffba781513efb68809d3f30464d5a752c27aa4cbb478bfce5ee7e2b2cfa8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:29:30.634426Z","signature_b64":"vRF4TOHKd3m9uUfrlaLDmdfdNDdHZ4NaHKKiWgmvj6WuSnJYnRTV/4RgjBP5YR7IA11ThxQIMG04gzUEwMcIAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b690ffba781513efb68809d3f30464d5a752c27aa4cbb478bfce5ee7e2b2cfa8","last_reissued_at":"2026-05-18T02:29:30.633969Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:29:30.633969Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1501.03045","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":"2026-05-18T02:29:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"h2P8i8zkfv05R9aHXE5E9wE1q24QDR4XXTkGNCPUk0TC2tRXr46hRJU307nzc1UUENMZvuKbcU+roGf8j31ACg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T20:57:53.249908Z"},"content_sha256":"b29e544ee0d7d709edd2a1c5dd5cddc2d4f52c6baf528dd7e290f754436fb24d","schema_version":"1.0","event_id":"sha256:b29e544ee0d7d709edd2a1c5dd5cddc2d4f52c6baf528dd7e290f754436fb24d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:W2IP7OTYCUJ67NUIBHJ7GBDE2W","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ring aggregation pattern of Human Travel Trips","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.soc-ph","authors_text":"Li-Min Jia, Peng Zhu, Wen-Yu Li, Yong Qin, Zi-Yang Wang","submitted_at":"2015-01-03T14:29:20Z","abstract_excerpt":"Although a lot of attentions have been paid to human mobility, the relationship between travel pattern with city structure is still unclear. Here we probe into this relationship by analyzing the metro passenger trip data.There are two unprecedented findings. One, from the average view a linear law exists between the individual's travel distance with his original distance to city center. The mechanism underlying is a travel pattern we called \"ring aggregation\", i.e., the daily movement of city passengers is just aggregating to a ring with roughly equal distance to city center.Interestingly, for"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.03045","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:29:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cd+C0wXdQAX/dRLpHiFuKcTZWtsjfuQCp096zQrvsyV0+dqTTgzqzwxNqklVYxzMVqxtgjeeDZwcGO4o5IPmDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T20:57:53.250245Z"},"content_sha256":"0ff83eb5dbc2f9d5933f4177bbf3ce484417530e3a0684a0401db31bd2a3a60f","schema_version":"1.0","event_id":"sha256:0ff83eb5dbc2f9d5933f4177bbf3ce484417530e3a0684a0401db31bd2a3a60f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/W2IP7OTYCUJ67NUIBHJ7GBDE2W/bundle.json","state_url":"https://pith.science/pith/W2IP7OTYCUJ67NUIBHJ7GBDE2W/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/W2IP7OTYCUJ67NUIBHJ7GBDE2W/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":"2026-06-02T20:57:53Z","links":{"resolver":"https://pith.science/pith/W2IP7OTYCUJ67NUIBHJ7GBDE2W","bundle":"https://pith.science/pith/W2IP7OTYCUJ67NUIBHJ7GBDE2W/bundle.json","state":"https://pith.science/pith/W2IP7OTYCUJ67NUIBHJ7GBDE2W/state.json","well_known_bundle":"https://pith.science/.well-known/pith/W2IP7OTYCUJ67NUIBHJ7GBDE2W/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:W2IP7OTYCUJ67NUIBHJ7GBDE2W","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":"86780dbc17e737d9954805469977195df8a2c46ca788149a7c0de6fb34ab87b8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2015-01-03T14:29:20Z","title_canon_sha256":"8c559db627afc16b7dbc5877a3f30bfca4672c0d7eba1e49088f139c752fd113"},"schema_version":"1.0","source":{"id":"1501.03045","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.03045","created_at":"2026-05-18T02:29:30Z"},{"alias_kind":"arxiv_version","alias_value":"1501.03045v1","created_at":"2026-05-18T02:29:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.03045","created_at":"2026-05-18T02:29:30Z"},{"alias_kind":"pith_short_12","alias_value":"W2IP7OTYCUJ6","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"W2IP7OTYCUJ67NUI","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"W2IP7OTY","created_at":"2026-05-18T12:29:47Z"}],"graph_snapshots":[{"event_id":"sha256:0ff83eb5dbc2f9d5933f4177bbf3ce484417530e3a0684a0401db31bd2a3a60f","target":"graph","created_at":"2026-05-18T02:29:30Z","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":"Although a lot of attentions have been paid to human mobility, the relationship between travel pattern with city structure is still unclear. Here we probe into this relationship by analyzing the metro passenger trip data.There are two unprecedented findings. One, from the average view a linear law exists between the individual's travel distance with his original distance to city center. The mechanism underlying is a travel pattern we called \"ring aggregation\", i.e., the daily movement of city passengers is just aggregating to a ring with roughly equal distance to city center.Interestingly, for","authors_text":"Li-Min Jia, Peng Zhu, Wen-Yu Li, Yong Qin, Zi-Yang Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2015-01-03T14:29:20Z","title":"Ring aggregation pattern of Human Travel Trips"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.03045","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:b29e544ee0d7d709edd2a1c5dd5cddc2d4f52c6baf528dd7e290f754436fb24d","target":"record","created_at":"2026-05-18T02:29:30Z","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":"86780dbc17e737d9954805469977195df8a2c46ca788149a7c0de6fb34ab87b8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2015-01-03T14:29:20Z","title_canon_sha256":"8c559db627afc16b7dbc5877a3f30bfca4672c0d7eba1e49088f139c752fd113"},"schema_version":"1.0","source":{"id":"1501.03045","kind":"arxiv","version":1}},"canonical_sha256":"b690ffba781513efb68809d3f30464d5a752c27aa4cbb478bfce5ee7e2b2cfa8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b690ffba781513efb68809d3f30464d5a752c27aa4cbb478bfce5ee7e2b2cfa8","first_computed_at":"2026-05-18T02:29:30.633969Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:29:30.633969Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vRF4TOHKd3m9uUfrlaLDmdfdNDdHZ4NaHKKiWgmvj6WuSnJYnRTV/4RgjBP5YR7IA11ThxQIMG04gzUEwMcIAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:29:30.634426Z","signed_message":"canonical_sha256_bytes"},"source_id":"1501.03045","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b29e544ee0d7d709edd2a1c5dd5cddc2d4f52c6baf528dd7e290f754436fb24d","sha256:0ff83eb5dbc2f9d5933f4177bbf3ce484417530e3a0684a0401db31bd2a3a60f"],"state_sha256":"7ff2f146f546784ac3c8a70eb1c760be228f18a0d3c23f6c9bec233068df59a4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fse6lFC00IkDMIXRvw+lPUCucyh6hygGdAvV7dz5mCPL0s1cM+t55bsqm+LFQDu3qGtcL1VCJFOM1BIpOlMEBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T20:57:53.252226Z","bundle_sha256":"04d740e763aa2034f17e5297175591a33b2489d12ad2a56b2b6a678e1ef18962"}}