{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:TNZ5DBPPR6FBYFXYG3GCRGMTR3","short_pith_number":"pith:TNZ5DBPP","canonical_record":{"source":{"id":"2101.12417","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DB","submitted_at":"2021-01-29T06:07:00Z","cross_cats_sorted":[],"title_canon_sha256":"470a095f0f6796086528a46edbf0da2c1b9f539f4862195af31c77bc42c25fca","abstract_canon_sha256":"b8ee9b35868fe28b0608b7c6493c8068e8808a2e87b8386dfb82c46ed8b15589"},"schema_version":"1.0"},"canonical_sha256":"9b73d185ef8f8a1c16f836cc2899938ec8e8f19e746c207468a1e385281b80ff","source":{"kind":"arxiv","id":"2101.12417","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.12417","created_at":"2026-07-05T02:14:14Z"},{"alias_kind":"arxiv_version","alias_value":"2101.12417v3","created_at":"2026-07-05T02:14:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.12417","created_at":"2026-07-05T02:14:14Z"},{"alias_kind":"pith_short_12","alias_value":"TNZ5DBPPR6FB","created_at":"2026-07-05T02:14:14Z"},{"alias_kind":"pith_short_16","alias_value":"TNZ5DBPPR6FBYFXY","created_at":"2026-07-05T02:14:14Z"},{"alias_kind":"pith_short_8","alias_value":"TNZ5DBPP","created_at":"2026-07-05T02:14:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:TNZ5DBPPR6FBYFXYG3GCRGMTR3","target":"record","payload":{"canonical_record":{"source":{"id":"2101.12417","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DB","submitted_at":"2021-01-29T06:07:00Z","cross_cats_sorted":[],"title_canon_sha256":"470a095f0f6796086528a46edbf0da2c1b9f539f4862195af31c77bc42c25fca","abstract_canon_sha256":"b8ee9b35868fe28b0608b7c6493c8068e8808a2e87b8386dfb82c46ed8b15589"},"schema_version":"1.0"},"canonical_sha256":"9b73d185ef8f8a1c16f836cc2899938ec8e8f19e746c207468a1e385281b80ff","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:14:14.054875Z","signature_b64":"lSn4PhaIj9D/BO0MVdKYJckjXMBCGiBiVv/UcO3wzZrCXPMUGi2Fw+xfYiUe/UjAw9CrdEYWyocar4zDyWVHDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9b73d185ef8f8a1c16f836cc2899938ec8e8f19e746c207468a1e385281b80ff","last_reissued_at":"2026-07-05T02:14:14.054456Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:14:14.054456Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2101.12417","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:14:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TV2AgPiykYJIP1LRjnT8S2auHx7ZLFtTxTGHqn6IHU4edNKFhuD4P/Z7FxCdoumwhYgyYPmlVVNlHUtXD8cWCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T12:32:10.834281Z"},"content_sha256":"939184dcc9bd8dc70fe68e03fb1951f30dd0b478e625554e80167b44785fdd19","schema_version":"1.0","event_id":"sha256:939184dcc9bd8dc70fe68e03fb1951f30dd0b478e625554e80167b44785fdd19"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:TNZ5DBPPR6FBYFXYG3GCRGMTR3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Distributed Spatial-Keyword kNN Monitoring for Location-aware Pub/Sub","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.DB","authors_text":"Daichi Amagata, Shohei Tsuruoka, Shunya Nishio, Takahiro Hara","submitted_at":"2021-01-29T06:07:00Z","abstract_excerpt":"Recent applications employ publish/subscribe (Pub/Sub) systems so that publishers can easily receive attentions of customers and subscribers can monitor useful information generated by publishers. Due to the prevalence of smart devices and social networking services, a large number of objects that contain both spatial and keyword information have been generated continuously, and the number of subscribers also continues to increase. This poses a challenge to Pub/Sub systems: they need to continuously extract useful information from massive objects for each subscriber in real time. In this paper"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.12417","kind":"arxiv","version":3},"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/2101.12417/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":"2026-07-05T02:14:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EV6YykmG9j5Ngs81HLhec/XWusppw1kWIZ19fY8TUZxxGQbhYA1vAErG6HVmIQlXINFGFbHvgxtHThQ432G0Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T12:32:10.834562Z"},"content_sha256":"3868c835c2d3c83329169bb62deb11a39c676ebbc0ca4dcf8121530adc659b2d","schema_version":"1.0","event_id":"sha256:3868c835c2d3c83329169bb62deb11a39c676ebbc0ca4dcf8121530adc659b2d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TNZ5DBPPR6FBYFXYG3GCRGMTR3/bundle.json","state_url":"https://pith.science/pith/TNZ5DBPPR6FBYFXYG3GCRGMTR3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TNZ5DBPPR6FBYFXYG3GCRGMTR3/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":"2026-08-01T12:32:10Z","links":{"resolver":"https://pith.science/pith/TNZ5DBPPR6FBYFXYG3GCRGMTR3","bundle":"https://pith.science/pith/TNZ5DBPPR6FBYFXYG3GCRGMTR3/bundle.json","state":"https://pith.science/pith/TNZ5DBPPR6FBYFXYG3GCRGMTR3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TNZ5DBPPR6FBYFXYG3GCRGMTR3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:TNZ5DBPPR6FBYFXYG3GCRGMTR3","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":"b8ee9b35868fe28b0608b7c6493c8068e8808a2e87b8386dfb82c46ed8b15589","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DB","submitted_at":"2021-01-29T06:07:00Z","title_canon_sha256":"470a095f0f6796086528a46edbf0da2c1b9f539f4862195af31c77bc42c25fca"},"schema_version":"1.0","source":{"id":"2101.12417","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.12417","created_at":"2026-07-05T02:14:14Z"},{"alias_kind":"arxiv_version","alias_value":"2101.12417v3","created_at":"2026-07-05T02:14:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.12417","created_at":"2026-07-05T02:14:14Z"},{"alias_kind":"pith_short_12","alias_value":"TNZ5DBPPR6FB","created_at":"2026-07-05T02:14:14Z"},{"alias_kind":"pith_short_16","alias_value":"TNZ5DBPPR6FBYFXY","created_at":"2026-07-05T02:14:14Z"},{"alias_kind":"pith_short_8","alias_value":"TNZ5DBPP","created_at":"2026-07-05T02:14:14Z"}],"graph_snapshots":[{"event_id":"sha256:3868c835c2d3c83329169bb62deb11a39c676ebbc0ca4dcf8121530adc659b2d","target":"graph","created_at":"2026-07-05T02:14:14Z","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/2101.12417/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Recent applications employ publish/subscribe (Pub/Sub) systems so that publishers can easily receive attentions of customers and subscribers can monitor useful information generated by publishers. Due to the prevalence of smart devices and social networking services, a large number of objects that contain both spatial and keyword information have been generated continuously, and the number of subscribers also continues to increase. This poses a challenge to Pub/Sub systems: they need to continuously extract useful information from massive objects for each subscriber in real time. In this paper","authors_text":"Daichi Amagata, Shohei Tsuruoka, Shunya Nishio, Takahiro Hara","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DB","submitted_at":"2021-01-29T06:07:00Z","title":"Distributed Spatial-Keyword kNN Monitoring for Location-aware Pub/Sub"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.12417","kind":"arxiv","version":3},"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":"sha256:939184dcc9bd8dc70fe68e03fb1951f30dd0b478e625554e80167b44785fdd19","target":"record","created_at":"2026-07-05T02:14:14Z","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":"b8ee9b35868fe28b0608b7c6493c8068e8808a2e87b8386dfb82c46ed8b15589","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DB","submitted_at":"2021-01-29T06:07:00Z","title_canon_sha256":"470a095f0f6796086528a46edbf0da2c1b9f539f4862195af31c77bc42c25fca"},"schema_version":"1.0","source":{"id":"2101.12417","kind":"arxiv","version":3}},"canonical_sha256":"9b73d185ef8f8a1c16f836cc2899938ec8e8f19e746c207468a1e385281b80ff","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9b73d185ef8f8a1c16f836cc2899938ec8e8f19e746c207468a1e385281b80ff","first_computed_at":"2026-07-05T02:14:14.054456Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:14:14.054456Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lSn4PhaIj9D/BO0MVdKYJckjXMBCGiBiVv/UcO3wzZrCXPMUGi2Fw+xfYiUe/UjAw9CrdEYWyocar4zDyWVHDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:14:14.054875Z","signed_message":"canonical_sha256_bytes"},"source_id":"2101.12417","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:939184dcc9bd8dc70fe68e03fb1951f30dd0b478e625554e80167b44785fdd19","sha256:3868c835c2d3c83329169bb62deb11a39c676ebbc0ca4dcf8121530adc659b2d"],"state_sha256":"c74b1abeb7c016b1429c5b7889274599d329a1c960c7d78b07288b84ea8b82f3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3pISt73ANf0SKlQXfKh1O6dheW7C3awO9CIUUerUaOtTjpeELG5nmcPUVr7CYMm//ykb79GVL8SgBeFHVrNPDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-01T12:32:10.837295Z","bundle_sha256":"6155774ff814b1df33c1375e1eed5179fd60216a4bc3206eba34bcb61e4d8d89"}}