{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:GZLDIV3GJHNXMJWKVF6JT27WFR","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":"e60eac19c1dbd7a372d993aa8cfd6e57e357a06a3bad948ccefcd8d6a2f1ca8d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2023-03-06T02:32:16Z","title_canon_sha256":"99c8f2da568101602d545bf9b384577221f4cab7414420d195c4cf03636bba5b"},"schema_version":"1.0","source":{"id":"2303.02842","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.02842","created_at":"2026-07-05T05:48:15Z"},{"alias_kind":"arxiv_version","alias_value":"2303.02842v1","created_at":"2026-07-05T05:48:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.02842","created_at":"2026-07-05T05:48:15Z"},{"alias_kind":"pith_short_12","alias_value":"GZLDIV3GJHNX","created_at":"2026-07-05T05:48:15Z"},{"alias_kind":"pith_short_16","alias_value":"GZLDIV3GJHNXMJWK","created_at":"2026-07-05T05:48:15Z"},{"alias_kind":"pith_short_8","alias_value":"GZLDIV3G","created_at":"2026-07-05T05:48:15Z"}],"graph_snapshots":[{"event_id":"sha256:f0c83a7f02ee59a2a0989f3c640f672d72ce33ddef8ab6590910b8c51cef62f1","target":"graph","created_at":"2026-07-05T05:48:15Z","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/2303.02842/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A spatial data federation is a collection of data owners (e.g., a consortium of taxi companies), and collectively it could provide better location-based services (LBS). For example, car-hailing services over a spatial data federation allow end users to easily pick the best offers. We focus on the range counting queries, which are primitive operations in spatial databases but received little attention in related research, especially considering the privacy requirements from data owners, who are reluctant to disclose their proprietary data. We propose a grouping-based technical framework named F","authors_text":"Lei Chen, Maocheng Li, Yuxiang Zeng","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2023-03-06T02:32:16Z","title":"Efficient and Accurate Range Counting on Privacy-preserving Spatial Data Federation [Technical Report]"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.02842","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":"sha256:8bf372443bcc19e43cc12abc55084a0408aec2b422395d6bd2cd01b2494f7326","target":"record","created_at":"2026-07-05T05:48:15Z","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":"e60eac19c1dbd7a372d993aa8cfd6e57e357a06a3bad948ccefcd8d6a2f1ca8d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2023-03-06T02:32:16Z","title_canon_sha256":"99c8f2da568101602d545bf9b384577221f4cab7414420d195c4cf03636bba5b"},"schema_version":"1.0","source":{"id":"2303.02842","kind":"arxiv","version":1}},"canonical_sha256":"365634576649db7626caa97c99ebf62c51b0a917f74e39798cddf8ff09d42788","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"365634576649db7626caa97c99ebf62c51b0a917f74e39798cddf8ff09d42788","first_computed_at":"2026-07-05T05:48:15.975628Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:48:15.975628Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0v+7L4a7FKubqNN51I3JI7S1Zpomemj/m+ewLXs+E88Ehx+XbSQ1p8SRt9DdyZZbOE710DdtZNGQ4YdurxR/AQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:48:15.976057Z","signed_message":"canonical_sha256_bytes"},"source_id":"2303.02842","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8bf372443bcc19e43cc12abc55084a0408aec2b422395d6bd2cd01b2494f7326","sha256:f0c83a7f02ee59a2a0989f3c640f672d72ce33ddef8ab6590910b8c51cef62f1"],"state_sha256":"7e595030d35b4e9e26bee334da0852daf04683c14eb985882fcc919878de60d1"}