{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:CV4K4YFF2RDQW6EB2322BY773D","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":"78a776a2d3c5786dba36e321140fb1ec69ad8028535648bd3657939de09373d7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-05-04T07:19:52Z","title_canon_sha256":"6fbbc67f72f79b60f18691dbd6a65a01945f55ab05badaba7e18360347bd221d"},"schema_version":"1.0","source":{"id":"1905.01447","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.01447","created_at":"2026-05-17T23:46:58Z"},{"alias_kind":"arxiv_version","alias_value":"1905.01447v1","created_at":"2026-05-17T23:46:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.01447","created_at":"2026-05-17T23:46:58Z"},{"alias_kind":"pith_short_12","alias_value":"CV4K4YFF2RDQ","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"CV4K4YFF2RDQW6EB","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"CV4K4YFF","created_at":"2026-05-18T12:33:15Z"}],"graph_snapshots":[{"event_id":"sha256:cb0439c7dfb8a012c533965ec92e9bd16f321f149a7bb2f61def08d086f6e26a","target":"graph","created_at":"2026-05-17T23:46:58Z","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":"Deep learning is revolutionizing the mapping industry. Under lightweight human curation, computer has generated almost half of the roads in Thailand on OpenStreetMap (OSM) using high-resolution aerial imagery. Bing maps are displaying 125 million computer-generated building polygons in the U.S. While tremendously more efficient than manual mapping, one cannot map out everything from the air. Especially for roads, a small prediction gap by image occlusion renders the entire road useless for routing. Misconnections can be more dangerous. Therefore computer-based mapping often requires local veri","authors_text":"Chun Liu, Pengyu Che, Tao Sun, Yin Wang, Zonglin Di","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-05-04T07:19:52Z","title":"Leveraging Crowdsourced GPS Data for Road Extraction from Aerial Imagery"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.01447","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":"sha256:7c5183d44cd8df58ccb04aeb52dc1ce828d0752cd96a2863c61828a77d913be1","target":"record","created_at":"2026-05-17T23:46:58Z","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":"78a776a2d3c5786dba36e321140fb1ec69ad8028535648bd3657939de09373d7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-05-04T07:19:52Z","title_canon_sha256":"6fbbc67f72f79b60f18691dbd6a65a01945f55ab05badaba7e18360347bd221d"},"schema_version":"1.0","source":{"id":"1905.01447","kind":"arxiv","version":1}},"canonical_sha256":"1578ae60a5d4470b7881d6f5a0e3ffd8d3d5c6693aa431f5e24e205c2913ecc0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1578ae60a5d4470b7881d6f5a0e3ffd8d3d5c6693aa431f5e24e205c2913ecc0","first_computed_at":"2026-05-17T23:46:58.518485Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:46:58.518485Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/tFQ4brPDoqiDKFMYGUnH2PK1Ow+/vs794UJFiPvmrqZ3Kj7M3jOohg376xr3gNcf5e/BNyu2kejTkVcojVECw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:46:58.519104Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.01447","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7c5183d44cd8df58ccb04aeb52dc1ce828d0752cd96a2863c61828a77d913be1","sha256:cb0439c7dfb8a012c533965ec92e9bd16f321f149a7bb2f61def08d086f6e26a"],"state_sha256":"8d55e1051930986c88291b6dea3ba90cab212fd3c82204419e53a68a34879e5d"}