{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:2LQ43U7DSLHYXX622EV5V4PI6B","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":"8e8f4dc82e6abf1d672b790bd6de26773cc31f7d8812b392b57a7322f85f77d1","cross_cats_sorted":["physics.data-an"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2024-09-03T11:58:14Z","title_canon_sha256":"64962612337c1f15a852a7761852495068c5191d9758e28f20c52ab3df824e18"},"schema_version":"1.0","source":{"id":"2409.01817","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.01817","created_at":"2026-05-29T02:05:33Z"},{"alias_kind":"arxiv_version","alias_value":"2409.01817v2","created_at":"2026-05-29T02:05:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.01817","created_at":"2026-05-29T02:05:33Z"},{"alias_kind":"pith_short_12","alias_value":"2LQ43U7DSLHY","created_at":"2026-05-29T02:05:33Z"},{"alias_kind":"pith_short_16","alias_value":"2LQ43U7DSLHYXX62","created_at":"2026-05-29T02:05:33Z"},{"alias_kind":"pith_short_8","alias_value":"2LQ43U7D","created_at":"2026-05-29T02:05:33Z"}],"graph_snapshots":[{"event_id":"sha256:da9dc9e4f116b7fe5f14aec0d4686df317c49fc158385ae5e60299c075dc1ee3","target":"graph","created_at":"2026-05-29T02:05:33Z","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/2409.01817/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The 15-minute city concept, which advocates for cities where essential services are accessible within a 15-minute walk or bike ride, has gained significant attention in recent years. However, despite being celebrated for promoting sustainability, large-scale empirical evaluations of the effectiveness of the 15-minute concept in reducing emissions are lacking. To address this gap, we investigate whether cities with better walking accessibility, like 15-minute cities, are associated with lower transportation emissions. Comparing 664 cities worldwide, we find that cities with better walking acces","authors_text":"Francesco Marzolla, Hygor Piaget Monteiro Melo, Matteo Bruno, Vittorio Loreto","cross_cats":["physics.data-an"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2024-09-03T11:58:14Z","title":"Compact 15-minute cities are greener"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.01817","kind":"arxiv","version":2},"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":"sha256:43526322387d46e289b07987af8220146ca807dce3ae9a9aea19dd95dd364ba6","target":"record","created_at":"2026-05-29T02:05:33Z","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":"8e8f4dc82e6abf1d672b790bd6de26773cc31f7d8812b392b57a7322f85f77d1","cross_cats_sorted":["physics.data-an"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2024-09-03T11:58:14Z","title_canon_sha256":"64962612337c1f15a852a7761852495068c5191d9758e28f20c52ab3df824e18"},"schema_version":"1.0","source":{"id":"2409.01817","kind":"arxiv","version":2}},"canonical_sha256":"d2e1cdd3e392cf8bdfdad12bdaf1e8f0516f3113f63e935d1bca3241b0b7248c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d2e1cdd3e392cf8bdfdad12bdaf1e8f0516f3113f63e935d1bca3241b0b7248c","first_computed_at":"2026-05-29T02:05:33.176858Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-29T02:05:33.176858Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kXXlK4SBNfMSvrtfYYkGSxDZPIYgVE65UWsIucRz3Odm0qacHH1RvQNr+z+++rRsjKwFS/PkA+e57XAdsXSvBg==","signature_status":"signed_v1","signed_at":"2026-05-29T02:05:33.177835Z","signed_message":"canonical_sha256_bytes"},"source_id":"2409.01817","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:43526322387d46e289b07987af8220146ca807dce3ae9a9aea19dd95dd364ba6","sha256:da9dc9e4f116b7fe5f14aec0d4686df317c49fc158385ae5e60299c075dc1ee3"],"state_sha256":"02c9f90807c0c97a1d4996f0dc2f45c6540b6dc79c33be0872bb3678afd5dda6"}