{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:2Q2EMTX6XFZUIFH5J3KKMB4PBZ","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":"790ec964839b012c3ada8eec74a63e6f80df132b9ee4c81c57f1d0409ce6ac11","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-09-30T20:00:02Z","title_canon_sha256":"0dcf68614ba11518ae80353f4ee90436af37b346d2b11129f552e2b238797050"},"schema_version":"1.0","source":{"id":"1410.0005","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.0005","created_at":"2026-05-18T02:40:17Z"},{"alias_kind":"arxiv_version","alias_value":"1410.0005v2","created_at":"2026-05-18T02:40:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.0005","created_at":"2026-05-18T02:40:17Z"},{"alias_kind":"pith_short_12","alias_value":"2Q2EMTX6XFZU","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_16","alias_value":"2Q2EMTX6XFZUIFH5","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_8","alias_value":"2Q2EMTX6","created_at":"2026-05-18T12:28:11Z"}],"graph_snapshots":[{"event_id":"sha256:83ef72ba06ea473356023061a3d7bc43fa06881fc89c8062d2883072c552c971","target":"graph","created_at":"2026-05-18T02:40:17Z","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":"We report the discovery of a wide co-moving substellar companion to the nearby ($D=67.5\\pm1.1$ pc) A3V star $\\zeta$ Delphini based on imaging and follow-up spectroscopic observations obtained during the course of our Volume-limited A-Star (VAST) multiplicity survey. $\\zeta$ Del was observed over a five-year baseline with adaptive optics, revealing the presence of a previously-unresolved companion with a proper motion consistent with that of the A-type primary. The age of the $\\zeta$ Del system was estimated as $525\\pm125$ Myr based on the position of the primary on the colour-magnitude and tem","authors_text":"A. Vigan, B. Macintosh, C. Kulesa, C. Marois, D. W. McCarthy, I. Song, J. Patience, J. R. Graham, K. Ward-Duong, M. S. Bessell, O. Lai, R. Doyon, R. J. De Rosa","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-09-30T20:00:02Z","title":"The VAST Survey - IV. A wide brown dwarf companion to the A3V star $\\zeta$ Delphini"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.0005","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":"sha256:5fc886e0b051a5b88ce4908aa57ada9e618b10256f65627eafd044610f5e481c","target":"record","created_at":"2026-05-18T02:40:17Z","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":"790ec964839b012c3ada8eec74a63e6f80df132b9ee4c81c57f1d0409ce6ac11","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-09-30T20:00:02Z","title_canon_sha256":"0dcf68614ba11518ae80353f4ee90436af37b346d2b11129f552e2b238797050"},"schema_version":"1.0","source":{"id":"1410.0005","kind":"arxiv","version":2}},"canonical_sha256":"d434464efeb9734414fd4ed4a6078f0e56c98f5fd4cfffa4137adb54f3b33d21","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d434464efeb9734414fd4ed4a6078f0e56c98f5fd4cfffa4137adb54f3b33d21","first_computed_at":"2026-05-18T02:40:17.627242Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:40:17.627242Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"H0sYnmTPDbmYY+957GohqEvtbmTpo2eUKv8WTT9jAx3vsytU0aWVYGogJq/LOxoh59KuBFuOb73RZr0lM/eIDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:40:17.627990Z","signed_message":"canonical_sha256_bytes"},"source_id":"1410.0005","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5fc886e0b051a5b88ce4908aa57ada9e618b10256f65627eafd044610f5e481c","sha256:83ef72ba06ea473356023061a3d7bc43fa06881fc89c8062d2883072c552c971"],"state_sha256":"1bc34c40ad963d0aaf653258e409450d1d08438385253e4634992c8219fcc1f8"}