{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:Y7CGUCE4OACSYTJVO4UQOP222B","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":"af9b1dd76bfc7e59b01d25127ea96db28c5e72a35b3ec20aaef424a39fd8c3f9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2023-09-05T16:43:52Z","title_canon_sha256":"c083df541f6b85551af30ea7e62220f4ca4315c4b1aa05a90ddf96b1fe58549a"},"schema_version":"1.0","source":{"id":"2309.02379","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2309.02379","created_at":"2026-07-05T09:01:25Z"},{"alias_kind":"arxiv_version","alias_value":"2309.02379v2","created_at":"2026-07-05T09:01:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2309.02379","created_at":"2026-07-05T09:01:25Z"},{"alias_kind":"pith_short_12","alias_value":"Y7CGUCE4OACS","created_at":"2026-07-05T09:01:25Z"},{"alias_kind":"pith_short_16","alias_value":"Y7CGUCE4OACSYTJV","created_at":"2026-07-05T09:01:25Z"},{"alias_kind":"pith_short_8","alias_value":"Y7CGUCE4","created_at":"2026-07-05T09:01:25Z"}],"graph_snapshots":[{"event_id":"sha256:362eb6e86959f230b26cd1a4f0c798ece059b8f52a5703cc25f8e1ab77e49d8c","target":"graph","created_at":"2026-07-05T09:01:25Z","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/2309.02379/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Conjunction analysis (CA) for resident space objects (RSOs) is essential for preventing collisions in an increasingly crowded orbital environment and preserving the operational integrity of satellites. A first and fundamental step in the CA process is to estimate the range of altitudes that each object can occupy, throughout an operational screening time of, typically, a few days. In this paper, a method is poroposed to analytically evaluate such range of altitudes in a zonal problem model and for a time horizon of generic duration thereby generalizing the concept of space occupancy (SO) intro","authors_text":"Ana S. Rivero, Claudio Bombardelli, Rafael Vazquez","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2023-09-05T16:43:52Z","title":"Short-Term Space Occupancy and Conjunction Filter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2309.02379","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":"sha256:51083364cc2cc5de025ed520b0818971f27e41314a94de89e8063b77d0d6353c","target":"record","created_at":"2026-07-05T09:01:25Z","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":"af9b1dd76bfc7e59b01d25127ea96db28c5e72a35b3ec20aaef424a39fd8c3f9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2023-09-05T16:43:52Z","title_canon_sha256":"c083df541f6b85551af30ea7e62220f4ca4315c4b1aa05a90ddf96b1fe58549a"},"schema_version":"1.0","source":{"id":"2309.02379","kind":"arxiv","version":2}},"canonical_sha256":"c7c46a089c70052c4d357729073f5ad072a4bcd880280067553a6f4ad279e3f6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c7c46a089c70052c4d357729073f5ad072a4bcd880280067553a6f4ad279e3f6","first_computed_at":"2026-07-05T09:01:25.477566Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:01:25.477566Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NbnLQ9jaHMUAVJs8UL3zLLtoSaB17u69vQ/zSNpGlPNnmvR5dVVCyC19ryDdS/KsIXLZ9UcxlEnmSqdCmgidAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T09:01:25.477953Z","signed_message":"canonical_sha256_bytes"},"source_id":"2309.02379","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:51083364cc2cc5de025ed520b0818971f27e41314a94de89e8063b77d0d6353c","sha256:362eb6e86959f230b26cd1a4f0c798ece059b8f52a5703cc25f8e1ab77e49d8c"],"state_sha256":"cfd2e27a176f4a69de072c6812f82368186139a8c573b60226e0f9a3dcbf037c"}