{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:AHCDERLXTG4YB3HGLO7YNL4O6X","short_pith_number":"pith:AHCDERLX","canonical_record":{"source":{"id":"1902.05015","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2019-02-13T17:18:27Z","cross_cats_sorted":[],"title_canon_sha256":"986eced5bf86a231d7f4713ede9c32f9734f8d66d44cc5b2a55a3ee2be912c95","abstract_canon_sha256":"584631083a50ef8e4c9d2f27c2deebaba906a4ca8d5a29c1c434baa39c174377"},"schema_version":"1.0"},"canonical_sha256":"01c432457799b980ece65bbf86af8ef5d9fed6e538556fba5969cd6bca199fd0","source":{"kind":"arxiv","id":"1902.05015","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.05015","created_at":"2026-05-17T23:54:03Z"},{"alias_kind":"arxiv_version","alias_value":"1902.05015v1","created_at":"2026-05-17T23:54:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.05015","created_at":"2026-05-17T23:54:03Z"},{"alias_kind":"pith_short_12","alias_value":"AHCDERLXTG4Y","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"AHCDERLXTG4YB3HG","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"AHCDERLX","created_at":"2026-05-18T12:33:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:AHCDERLXTG4YB3HGLO7YNL4O6X","target":"record","payload":{"canonical_record":{"source":{"id":"1902.05015","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2019-02-13T17:18:27Z","cross_cats_sorted":[],"title_canon_sha256":"986eced5bf86a231d7f4713ede9c32f9734f8d66d44cc5b2a55a3ee2be912c95","abstract_canon_sha256":"584631083a50ef8e4c9d2f27c2deebaba906a4ca8d5a29c1c434baa39c174377"},"schema_version":"1.0"},"canonical_sha256":"01c432457799b980ece65bbf86af8ef5d9fed6e538556fba5969cd6bca199fd0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:54:03.625911Z","signature_b64":"LeyBTysvaZd7TTKX908kMVll5gscf/YUV4eLPgUqnir1YPkNedZRZyzoDfyHw0Lcki9dRF3s9kHo04vZqx/fDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"01c432457799b980ece65bbf86af8ef5d9fed6e538556fba5969cd6bca199fd0","last_reissued_at":"2026-05-17T23:54:03.624911Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:54:03.624911Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1902.05015","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":"2026-05-17T23:54:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DFWzlVx3Pos8flBJB7iJcdtVy5oLNoviL2wUAUG6GiyXWH1eFyLB+aT/WJg9+TuN1vlAGjZ4+qDhVvOS5RobAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T21:51:43.373905Z"},"content_sha256":"efcc36f369ea3be0e2fba12a4f933edf788afc2f0bb00a5234b4a924b3e9800d","schema_version":"1.0","event_id":"sha256:efcc36f369ea3be0e2fba12a4f933edf788afc2f0bb00a5234b4a924b3e9800d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:AHCDERLXTG4YB3HGLO7YNL4O6X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Data-Driven Approach for Assessing Biking Safety in Cities","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"stat.AP","authors_text":"Daniele Quercia, Konstantinos Pelechrinis, Sara Daraei","submitted_at":"2019-02-13T17:18:27Z","abstract_excerpt":"With the focus that cities around the world have put on sustainable transportation during the past few years, biking has become one of the foci for local governments around the world. Cities all over the world invest in bike infrastructure, including bike lanes, bike parking racks, shared (dockless) bike systems etc. However, one of the critical factors in converting city-dwellers to (regular) bike users/commuters is safety. In this work, we utilize bike accident data from different cities to model the biking safety based on street-level (geographical and infrastructural) features. Our evaluat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.05015","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":"2026-05-17T23:54:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iJyBIUWlsIuK+wetsrXL1Q1dx4s2IC76iCWDlheFmUzOvJEmbiwShoxg1YqGfyrvDY4yf/PMcrf2gzCkgRLyDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T21:51:43.374262Z"},"content_sha256":"e88f65a16c0a7132b4e7be6fb3be29518d802e1c41467f6d7b11460208838356","schema_version":"1.0","event_id":"sha256:e88f65a16c0a7132b4e7be6fb3be29518d802e1c41467f6d7b11460208838356"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AHCDERLXTG4YB3HGLO7YNL4O6X/bundle.json","state_url":"https://pith.science/pith/AHCDERLXTG4YB3HGLO7YNL4O6X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AHCDERLXTG4YB3HGLO7YNL4O6X/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":"2026-06-08T21:51:43Z","links":{"resolver":"https://pith.science/pith/AHCDERLXTG4YB3HGLO7YNL4O6X","bundle":"https://pith.science/pith/AHCDERLXTG4YB3HGLO7YNL4O6X/bundle.json","state":"https://pith.science/pith/AHCDERLXTG4YB3HGLO7YNL4O6X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AHCDERLXTG4YB3HGLO7YNL4O6X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:AHCDERLXTG4YB3HGLO7YNL4O6X","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":"584631083a50ef8e4c9d2f27c2deebaba906a4ca8d5a29c1c434baa39c174377","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2019-02-13T17:18:27Z","title_canon_sha256":"986eced5bf86a231d7f4713ede9c32f9734f8d66d44cc5b2a55a3ee2be912c95"},"schema_version":"1.0","source":{"id":"1902.05015","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.05015","created_at":"2026-05-17T23:54:03Z"},{"alias_kind":"arxiv_version","alias_value":"1902.05015v1","created_at":"2026-05-17T23:54:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.05015","created_at":"2026-05-17T23:54:03Z"},{"alias_kind":"pith_short_12","alias_value":"AHCDERLXTG4Y","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"AHCDERLXTG4YB3HG","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"AHCDERLX","created_at":"2026-05-18T12:33:12Z"}],"graph_snapshots":[{"event_id":"sha256:e88f65a16c0a7132b4e7be6fb3be29518d802e1c41467f6d7b11460208838356","target":"graph","created_at":"2026-05-17T23:54:03Z","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":"With the focus that cities around the world have put on sustainable transportation during the past few years, biking has become one of the foci for local governments around the world. Cities all over the world invest in bike infrastructure, including bike lanes, bike parking racks, shared (dockless) bike systems etc. However, one of the critical factors in converting city-dwellers to (regular) bike users/commuters is safety. In this work, we utilize bike accident data from different cities to model the biking safety based on street-level (geographical and infrastructural) features. Our evaluat","authors_text":"Daniele Quercia, Konstantinos Pelechrinis, Sara Daraei","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2019-02-13T17:18:27Z","title":"A Data-Driven Approach for Assessing Biking Safety in Cities"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.05015","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:efcc36f369ea3be0e2fba12a4f933edf788afc2f0bb00a5234b4a924b3e9800d","target":"record","created_at":"2026-05-17T23:54:03Z","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":"584631083a50ef8e4c9d2f27c2deebaba906a4ca8d5a29c1c434baa39c174377","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2019-02-13T17:18:27Z","title_canon_sha256":"986eced5bf86a231d7f4713ede9c32f9734f8d66d44cc5b2a55a3ee2be912c95"},"schema_version":"1.0","source":{"id":"1902.05015","kind":"arxiv","version":1}},"canonical_sha256":"01c432457799b980ece65bbf86af8ef5d9fed6e538556fba5969cd6bca199fd0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"01c432457799b980ece65bbf86af8ef5d9fed6e538556fba5969cd6bca199fd0","first_computed_at":"2026-05-17T23:54:03.624911Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:54:03.624911Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LeyBTysvaZd7TTKX908kMVll5gscf/YUV4eLPgUqnir1YPkNedZRZyzoDfyHw0Lcki9dRF3s9kHo04vZqx/fDw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:54:03.625911Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.05015","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:efcc36f369ea3be0e2fba12a4f933edf788afc2f0bb00a5234b4a924b3e9800d","sha256:e88f65a16c0a7132b4e7be6fb3be29518d802e1c41467f6d7b11460208838356"],"state_sha256":"44303f548f711ff845db8f285ff345971b5d552a4c0f6311bf7a4401af105b59"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mr/9+WrCxzApBfd8ZGgcnpc5MWupI3P+TZGxR4o1vuUFLTsov2UHUNWMI7LdePJ7CBToiLhQdGTSex2l2gKYAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T21:51:43.376143Z","bundle_sha256":"d403c3f6cc31f6ad387a00e1cc391953151229286f3e67a7f4c8b768296d7a61"}}