{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:L4IFL6KLT4LADKUOLXODUHIDPF","short_pith_number":"pith:L4IFL6KL","canonical_record":{"source":{"id":"2201.12639","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SY","submitted_at":"2022-01-29T19:28:18Z","cross_cats_sorted":["cs.MA","cs.SY"],"title_canon_sha256":"039cb5472f44bfedf86642d8c08a0f55a6ffbfa636aec3748dea9a2f75184384","abstract_canon_sha256":"04ed4d12786d356144b1a11d483d1ef51bf923d7d000cbe40c63378d719d279a"},"schema_version":"1.0"},"canonical_sha256":"5f1055f94b9f1601aa8e5ddc3a1d037955e30228c49d0d25de987823d4b7785b","source":{"kind":"arxiv","id":"2201.12639","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2201.12639","created_at":"2026-07-05T03:52:38Z"},{"alias_kind":"arxiv_version","alias_value":"2201.12639v1","created_at":"2026-07-05T03:52:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.12639","created_at":"2026-07-05T03:52:38Z"},{"alias_kind":"pith_short_12","alias_value":"L4IFL6KLT4LA","created_at":"2026-07-05T03:52:38Z"},{"alias_kind":"pith_short_16","alias_value":"L4IFL6KLT4LADKUO","created_at":"2026-07-05T03:52:38Z"},{"alias_kind":"pith_short_8","alias_value":"L4IFL6KL","created_at":"2026-07-05T03:52:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:L4IFL6KLT4LADKUOLXODUHIDPF","target":"record","payload":{"canonical_record":{"source":{"id":"2201.12639","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SY","submitted_at":"2022-01-29T19:28:18Z","cross_cats_sorted":["cs.MA","cs.SY"],"title_canon_sha256":"039cb5472f44bfedf86642d8c08a0f55a6ffbfa636aec3748dea9a2f75184384","abstract_canon_sha256":"04ed4d12786d356144b1a11d483d1ef51bf923d7d000cbe40c63378d719d279a"},"schema_version":"1.0"},"canonical_sha256":"5f1055f94b9f1601aa8e5ddc3a1d037955e30228c49d0d25de987823d4b7785b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:52:38.672785Z","signature_b64":"LeH65/pkyiu/1c4CyYsSownhvtUZQABEgSnjTcs3jtWibOfv1xBn4MoffdVqvHyqdNw/a44LB6UosCMG6T4iDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5f1055f94b9f1601aa8e5ddc3a1d037955e30228c49d0d25de987823d4b7785b","last_reissued_at":"2026-07-05T03:52:38.672360Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:52:38.672360Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2201.12639","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":"2026-07-05T03:52:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E9gJVDLj9S56E2F2ES8i4GhK04Qma1SsVolO0tRe6OlLsZ5JfGKKbX3cvnV2pIumbrLtcUcxWABjDGHTJyqZDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T06:14:49.455516Z"},"content_sha256":"4b04a7f9e9a9e179ccc5e47f93640954dbe2d898a8d747f353fb22e7687615eb","schema_version":"1.0","event_id":"sha256:4b04a7f9e9a9e179ccc5e47f93640954dbe2d898a8d747f353fb22e7687615eb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:L4IFL6KLT4LADKUOLXODUHIDPF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On Optimizing Shared-ride Mobility Services with Walking Legs","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["cs.MA","cs.SY"],"primary_cat":"eess.SY","authors_text":"Michael F Hyland, Navjyoth JS Sarma, Younghun Bahk, Zifan Wang","submitted_at":"2022-01-29T19:28:18Z","abstract_excerpt":"Shared-ride mobility services that incorporate traveler walking legs aim to reduce vehicle-kilometers-travelled (VKT), vehicle-hours-travelled (VHT), request rejections, fleet size, or some combination of these factors, compared to door-to-door (D2D) shared-ride services. This paper provides a review of shared-ride services with walking legs (SRSWL), particularly the studies in the literature that model the operational problem(s) associated with SRSWL. The paper describes the operational and societal benefits of SRSWL as well as compares the SRSWL to circuitous D2D shared-ride services, ride-h"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.12639","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/2201.12639/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":"2026-07-05T03:52:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uSttdtS/MMcWr/864/OiPbCi70sqnvydIzKcuwifCbN4DF2APhoBqZyl2Gwv/XltlL05iGbPUondb0RIDz77Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T06:14:49.456349Z"},"content_sha256":"472566dbdd7572f3b63c04142c5bb495400857e81e98ec38d7f1d446078aff25","schema_version":"1.0","event_id":"sha256:472566dbdd7572f3b63c04142c5bb495400857e81e98ec38d7f1d446078aff25"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/L4IFL6KLT4LADKUOLXODUHIDPF/bundle.json","state_url":"https://pith.science/pith/L4IFL6KLT4LADKUOLXODUHIDPF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/L4IFL6KLT4LADKUOLXODUHIDPF/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":"2026-08-07T06:14:49Z","links":{"resolver":"https://pith.science/pith/L4IFL6KLT4LADKUOLXODUHIDPF","bundle":"https://pith.science/pith/L4IFL6KLT4LADKUOLXODUHIDPF/bundle.json","state":"https://pith.science/pith/L4IFL6KLT4LADKUOLXODUHIDPF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/L4IFL6KLT4LADKUOLXODUHIDPF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:L4IFL6KLT4LADKUOLXODUHIDPF","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":"04ed4d12786d356144b1a11d483d1ef51bf923d7d000cbe40c63378d719d279a","cross_cats_sorted":["cs.MA","cs.SY"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SY","submitted_at":"2022-01-29T19:28:18Z","title_canon_sha256":"039cb5472f44bfedf86642d8c08a0f55a6ffbfa636aec3748dea9a2f75184384"},"schema_version":"1.0","source":{"id":"2201.12639","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2201.12639","created_at":"2026-07-05T03:52:38Z"},{"alias_kind":"arxiv_version","alias_value":"2201.12639v1","created_at":"2026-07-05T03:52:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.12639","created_at":"2026-07-05T03:52:38Z"},{"alias_kind":"pith_short_12","alias_value":"L4IFL6KLT4LA","created_at":"2026-07-05T03:52:38Z"},{"alias_kind":"pith_short_16","alias_value":"L4IFL6KLT4LADKUO","created_at":"2026-07-05T03:52:38Z"},{"alias_kind":"pith_short_8","alias_value":"L4IFL6KL","created_at":"2026-07-05T03:52:38Z"}],"graph_snapshots":[{"event_id":"sha256:472566dbdd7572f3b63c04142c5bb495400857e81e98ec38d7f1d446078aff25","target":"graph","created_at":"2026-07-05T03:52:38Z","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/2201.12639/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Shared-ride mobility services that incorporate traveler walking legs aim to reduce vehicle-kilometers-travelled (VKT), vehicle-hours-travelled (VHT), request rejections, fleet size, or some combination of these factors, compared to door-to-door (D2D) shared-ride services. This paper provides a review of shared-ride services with walking legs (SRSWL), particularly the studies in the literature that model the operational problem(s) associated with SRSWL. The paper describes the operational and societal benefits of SRSWL as well as compares the SRSWL to circuitous D2D shared-ride services, ride-h","authors_text":"Michael F Hyland, Navjyoth JS Sarma, Younghun Bahk, Zifan Wang","cross_cats":["cs.MA","cs.SY"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SY","submitted_at":"2022-01-29T19:28:18Z","title":"On Optimizing Shared-ride Mobility Services with Walking Legs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.12639","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":"sha256:4b04a7f9e9a9e179ccc5e47f93640954dbe2d898a8d747f353fb22e7687615eb","target":"record","created_at":"2026-07-05T03:52:38Z","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":"04ed4d12786d356144b1a11d483d1ef51bf923d7d000cbe40c63378d719d279a","cross_cats_sorted":["cs.MA","cs.SY"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SY","submitted_at":"2022-01-29T19:28:18Z","title_canon_sha256":"039cb5472f44bfedf86642d8c08a0f55a6ffbfa636aec3748dea9a2f75184384"},"schema_version":"1.0","source":{"id":"2201.12639","kind":"arxiv","version":1}},"canonical_sha256":"5f1055f94b9f1601aa8e5ddc3a1d037955e30228c49d0d25de987823d4b7785b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5f1055f94b9f1601aa8e5ddc3a1d037955e30228c49d0d25de987823d4b7785b","first_computed_at":"2026-07-05T03:52:38.672360Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:52:38.672360Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LeH65/pkyiu/1c4CyYsSownhvtUZQABEgSnjTcs3jtWibOfv1xBn4MoffdVqvHyqdNw/a44LB6UosCMG6T4iDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:52:38.672785Z","signed_message":"canonical_sha256_bytes"},"source_id":"2201.12639","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4b04a7f9e9a9e179ccc5e47f93640954dbe2d898a8d747f353fb22e7687615eb","sha256:472566dbdd7572f3b63c04142c5bb495400857e81e98ec38d7f1d446078aff25"],"state_sha256":"ae925be9ccdb9028b94da8e792484147fd6f5ce3d1f85bd74cc699386f360412"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e2rNIsaUp5NzstugAlInvOpTsWaGHyt0V7jDDZ1GhqsYsCl5NXwO/5YusXvtFO12SC1o95htajNDeItNggC8Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T06:14:49.468740Z","bundle_sha256":"8ed8b3fb79361038eb94ead5cf4e0fed91c343653503af480549b3d938a25cb6"}}