{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:EZ7OHMWCQA73RVOD3Y45XRSR2J","short_pith_number":"pith:EZ7OHMWC","canonical_record":{"source":{"id":"1403.4358","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-03-18T06:37:57Z","cross_cats_sorted":[],"title_canon_sha256":"cd5feafff87c9d2c2aeb8ddc381ad78be707f0fe3e6bb71aaa3015d0d7237993","abstract_canon_sha256":"bcd4d421c93003cfb648373220c5d5d24fcf8a2459e4f2c05669e782a87b9ae3"},"schema_version":"1.0"},"canonical_sha256":"267ee3b2c2803fb8d5c3de39dbc651d26dfaf8b1027ef396f71aeffe051aeb24","source":{"kind":"arxiv","id":"1403.4358","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.4358","created_at":"2026-05-18T02:56:04Z"},{"alias_kind":"arxiv_version","alias_value":"1403.4358v1","created_at":"2026-05-18T02:56:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.4358","created_at":"2026-05-18T02:56:04Z"},{"alias_kind":"pith_short_12","alias_value":"EZ7OHMWCQA73","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"EZ7OHMWCQA73RVOD","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"EZ7OHMWC","created_at":"2026-05-18T12:28:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:EZ7OHMWCQA73RVOD3Y45XRSR2J","target":"record","payload":{"canonical_record":{"source":{"id":"1403.4358","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-03-18T06:37:57Z","cross_cats_sorted":[],"title_canon_sha256":"cd5feafff87c9d2c2aeb8ddc381ad78be707f0fe3e6bb71aaa3015d0d7237993","abstract_canon_sha256":"bcd4d421c93003cfb648373220c5d5d24fcf8a2459e4f2c05669e782a87b9ae3"},"schema_version":"1.0"},"canonical_sha256":"267ee3b2c2803fb8d5c3de39dbc651d26dfaf8b1027ef396f71aeffe051aeb24","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:56:04.819590Z","signature_b64":"Yu33zwyyqFlUPLJf/382wozsE4afSJK3XenUl0V2zNQPesPI3vn49TOKoHMxazw2QbHi/rc+dJRT4t0M79JEAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"267ee3b2c2803fb8d5c3de39dbc651d26dfaf8b1027ef396f71aeffe051aeb24","last_reissued_at":"2026-05-18T02:56:04.819071Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:56:04.819071Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1403.4358","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":"2026-05-18T02:56:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KdYSyX8HKLVnoF70sanlX20rPwjVcHejM2YmDGNbzSqRIJjxhAx0yDb5iFqmGU3MErg0gqDJGCmGOF7/9wT2Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T00:46:19.913147Z"},"content_sha256":"158eff255b9db60455717f0e39eec4d20efb446b1d80ee1bb3915c65d871f371","schema_version":"1.0","event_id":"sha256:158eff255b9db60455717f0e39eec4d20efb446b1d80ee1bb3915c65d871f371"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:EZ7OHMWCQA73RVOD3Y45XRSR2J","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Efficient Catalog Matching with Dropout Detection","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Alexander S. Szalay, Chenzhou Cui, Dongwei Fan, Tam\\'as Budav\\'ari, Yongheng Zhao","submitted_at":"2014-03-18T06:37:57Z","abstract_excerpt":"Not only source catalogs are extracted from astronomy observations. Their sky coverage is always carefully recorded and used in statistical analyses, such as correlation and luminosity function studies. Here we present a novel method for catalog matching, which inherently builds on the coverage information for better performance and completeness. A modified version of the Zones Algorithm is introduced for matching partially overlapping observations, where irrelevant parts of the data are excluded up front for efficiency. Our design enables searches to focus on specific areas on the sky to furt"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.4358","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":"2026-05-18T02:56:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u1/cisA4ghgauKUc+L9Jp48+A4R8eNnz4FaLRk5gyhmLxK9YLraLI7rIHufE0k10+gOqmWfbRF1zAZvoEde2Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T00:46:19.913493Z"},"content_sha256":"eaa22f7bb450cbecc4e1bba3e1bd11f9aa652cffc726610f53eed00f80b07d8f","schema_version":"1.0","event_id":"sha256:eaa22f7bb450cbecc4e1bba3e1bd11f9aa652cffc726610f53eed00f80b07d8f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EZ7OHMWCQA73RVOD3Y45XRSR2J/bundle.json","state_url":"https://pith.science/pith/EZ7OHMWCQA73RVOD3Y45XRSR2J/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EZ7OHMWCQA73RVOD3Y45XRSR2J/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":"2026-06-06T00:46:19Z","links":{"resolver":"https://pith.science/pith/EZ7OHMWCQA73RVOD3Y45XRSR2J","bundle":"https://pith.science/pith/EZ7OHMWCQA73RVOD3Y45XRSR2J/bundle.json","state":"https://pith.science/pith/EZ7OHMWCQA73RVOD3Y45XRSR2J/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EZ7OHMWCQA73RVOD3Y45XRSR2J/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:EZ7OHMWCQA73RVOD3Y45XRSR2J","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":"bcd4d421c93003cfb648373220c5d5d24fcf8a2459e4f2c05669e782a87b9ae3","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-03-18T06:37:57Z","title_canon_sha256":"cd5feafff87c9d2c2aeb8ddc381ad78be707f0fe3e6bb71aaa3015d0d7237993"},"schema_version":"1.0","source":{"id":"1403.4358","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.4358","created_at":"2026-05-18T02:56:04Z"},{"alias_kind":"arxiv_version","alias_value":"1403.4358v1","created_at":"2026-05-18T02:56:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.4358","created_at":"2026-05-18T02:56:04Z"},{"alias_kind":"pith_short_12","alias_value":"EZ7OHMWCQA73","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"EZ7OHMWCQA73RVOD","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"EZ7OHMWC","created_at":"2026-05-18T12:28:28Z"}],"graph_snapshots":[{"event_id":"sha256:eaa22f7bb450cbecc4e1bba3e1bd11f9aa652cffc726610f53eed00f80b07d8f","target":"graph","created_at":"2026-05-18T02:56:04Z","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":"Not only source catalogs are extracted from astronomy observations. Their sky coverage is always carefully recorded and used in statistical analyses, such as correlation and luminosity function studies. Here we present a novel method for catalog matching, which inherently builds on the coverage information for better performance and completeness. A modified version of the Zones Algorithm is introduced for matching partially overlapping observations, where irrelevant parts of the data are excluded up front for efficiency. Our design enables searches to focus on specific areas on the sky to furt","authors_text":"Alexander S. Szalay, Chenzhou Cui, Dongwei Fan, Tam\\'as Budav\\'ari, Yongheng Zhao","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-03-18T06:37:57Z","title":"Efficient Catalog Matching with Dropout Detection"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.4358","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":"sha256:158eff255b9db60455717f0e39eec4d20efb446b1d80ee1bb3915c65d871f371","target":"record","created_at":"2026-05-18T02:56:04Z","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":"bcd4d421c93003cfb648373220c5d5d24fcf8a2459e4f2c05669e782a87b9ae3","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-03-18T06:37:57Z","title_canon_sha256":"cd5feafff87c9d2c2aeb8ddc381ad78be707f0fe3e6bb71aaa3015d0d7237993"},"schema_version":"1.0","source":{"id":"1403.4358","kind":"arxiv","version":1}},"canonical_sha256":"267ee3b2c2803fb8d5c3de39dbc651d26dfaf8b1027ef396f71aeffe051aeb24","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"267ee3b2c2803fb8d5c3de39dbc651d26dfaf8b1027ef396f71aeffe051aeb24","first_computed_at":"2026-05-18T02:56:04.819071Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:56:04.819071Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Yu33zwyyqFlUPLJf/382wozsE4afSJK3XenUl0V2zNQPesPI3vn49TOKoHMxazw2QbHi/rc+dJRT4t0M79JEAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:56:04.819590Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.4358","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:158eff255b9db60455717f0e39eec4d20efb446b1d80ee1bb3915c65d871f371","sha256:eaa22f7bb450cbecc4e1bba3e1bd11f9aa652cffc726610f53eed00f80b07d8f"],"state_sha256":"6c2649c3f51623eec755b2326e9fe68d28ffa555c9dbf80c4d6d81089ed42f2f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/VzJepFPfxO1f7DoRwjqXmq00699rAYXsFcorzUNG+cxXuyecjd1pqShZgyzYdn+739SRUtzgsXxLHKYeDR0Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T00:46:19.915751Z","bundle_sha256":"7dc7a8cbbb2d5dbc732fec02ddee7f1a94aef90bde5a9ff6d7d40508b0f98c35"}}