{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:QQ4XQX4ZAE4RJNNASI57XAYFGZ","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":"f8054d298fe72cb8e0bebe35aede7eca35e4f365c04e149cd18f57ebfbad6b85","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1999-07-23T18:20:02Z","title_canon_sha256":"1d4de708d96b5dc6be38675d5cb4687c4a9e1724766f869c01defb52f83383d7"},"schema_version":"1.0","source":{"id":"astro-ph/9907331","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9907331","created_at":"2026-07-04T16:11:27Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9907331v1","created_at":"2026-07-04T16:11:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9907331","created_at":"2026-07-04T16:11:27Z"},{"alias_kind":"pith_short_12","alias_value":"QQ4XQX4ZAE4R","created_at":"2026-07-04T16:11:27Z"},{"alias_kind":"pith_short_16","alias_value":"QQ4XQX4ZAE4RJNNA","created_at":"2026-07-04T16:11:27Z"},{"alias_kind":"pith_short_8","alias_value":"QQ4XQX4Z","created_at":"2026-07-04T16:11:27Z"}],"graph_snapshots":[{"event_id":"sha256:9fd380b0c14b5b5538fecf4cdb4644f631dd00c17adf7b117f8999c1b8600265","target":"graph","created_at":"2026-07-04T16:11:27Z","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/astro-ph/9907331/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Radial velocity data for both components of W Crv are presented. In spite of providing full radial-velocity information, the new data are not sufficient to establish the configuration of this important system because of large seasonal light-curve variations which prevent a combined light-curve/radial-velocity solution. It is noted that the primary minimum is free of the photometric variations, a property which may help explain their elusive source. Photometrically, the system appears to be a contact binary with poor or absent energy exchange, but such an explanation - in view of the presence o","authors_text":"Slavek M. Rucinski, University of Toronto), Wenxian Lu (David Dunlap Observatory","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1999-07-23T18:20:02Z","title":"W Crv: The shortest-period Algol with non-degenerate components?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9907331","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:f0cca32f1ab05077fc9805a0560de51dde2d6a6989b70ad82b863d7549078d61","target":"record","created_at":"2026-07-04T16:11:27Z","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":"f8054d298fe72cb8e0bebe35aede7eca35e4f365c04e149cd18f57ebfbad6b85","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1999-07-23T18:20:02Z","title_canon_sha256":"1d4de708d96b5dc6be38675d5cb4687c4a9e1724766f869c01defb52f83383d7"},"schema_version":"1.0","source":{"id":"astro-ph/9907331","kind":"arxiv","version":1}},"canonical_sha256":"8439785f99013914b5a0923bfb8305367d5a3061fd09acafbc8f741512fd2199","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8439785f99013914b5a0923bfb8305367d5a3061fd09acafbc8f741512fd2199","first_computed_at":"2026-07-04T16:11:27.759448Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:11:27.759448Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kC/T135D5P5DZ2zoI2eqfmETHI1+BWRSARzcBC4gxi4Sj8fdhj7LxCM1yYT9bRzX1DV5pNmN71Or7cumFRPhCg==","signature_status":"signed_v1","signed_at":"2026-07-04T16:11:27.759898Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9907331","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f0cca32f1ab05077fc9805a0560de51dde2d6a6989b70ad82b863d7549078d61","sha256:9fd380b0c14b5b5538fecf4cdb4644f631dd00c17adf7b117f8999c1b8600265"],"state_sha256":"ced7928a77d188325ea93dc4960f199e4e301e194847c3dcf9019ddd4422398e"}