{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:PFH24OYDEUGNB5TQKEG6KZFF5A","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":"abc21a3e0d18de8c8687828c3d1b14c58aabf859ee4c1a2ab3f6fa8d0c75e878","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-08-24T21:27:03Z","title_canon_sha256":"f578420650f1f9f528ef0e8a2d461732e47235622d9c1de22125f5ca7dab733b"},"schema_version":"1.0","source":{"id":"1008.4156","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1008.4156","created_at":"2026-05-18T01:09:23Z"},{"alias_kind":"arxiv_version","alias_value":"1008.4156v1","created_at":"2026-05-18T01:09:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1008.4156","created_at":"2026-05-18T01:09:23Z"},{"alias_kind":"pith_short_12","alias_value":"PFH24OYDEUGN","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"PFH24OYDEUGNB5TQ","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"PFH24OYD","created_at":"2026-05-18T12:26:12Z"}],"graph_snapshots":[{"event_id":"sha256:51e393a673ddea16af3f2235a4be5d0f8ac32daa282c7859c6426925b979415e","target":"graph","created_at":"2026-05-18T01:09:23Z","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 new spectroscopic observations of the gravitational lens RXJ 021+4529 with the multi-mode focal reducer SCORPIO of the SAO RAS 6-m telescope. The new spectral observations were compared with the previously observed spectra of components A and B of RXJ 0921+4529, i.e. the same components observed in different epochs. We found a significant difference in the spectrum between the components that cannot be explained with microlensing and/or spectral variation. We conclude that RXJ 0921+4529 is a binary quasar system, where redshifts of quasars A and B are 1.6535 +/- 0.0005 and 1.6625","authors_text":"A. V. Moiseev, D. Ili\\'c, E. Mediavilla, J. Kova\\v{c}evi\\'c, J. Mu\\~noz, L. \\v{C}. Popovi\\'c, P. Jovanovi\\'c","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-08-24T21:27:03Z","title":"RXJ 0921+4529: a binary quasar or gravitational lens?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.4156","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:b90699e6290079e2b2245b808e40959c073a0fc937ad1aed5aace353ffa02a68","target":"record","created_at":"2026-05-18T01:09:23Z","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":"abc21a3e0d18de8c8687828c3d1b14c58aabf859ee4c1a2ab3f6fa8d0c75e878","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-08-24T21:27:03Z","title_canon_sha256":"f578420650f1f9f528ef0e8a2d461732e47235622d9c1de22125f5ca7dab733b"},"schema_version":"1.0","source":{"id":"1008.4156","kind":"arxiv","version":1}},"canonical_sha256":"794fae3b03250cd0f670510de564a5e8230f6e9be10558cf52f1d96e5fa86413","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"794fae3b03250cd0f670510de564a5e8230f6e9be10558cf52f1d96e5fa86413","first_computed_at":"2026-05-18T01:09:23.628527Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:09:23.628527Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ghiVGhurFFKhXAl8jm9Ml6ERGGewJupra0lK2Ff/c1HgRvk3FIqcI0yJ1XYrVvaCINm37TEd+1t8cIPg9Dq+DA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:09:23.628883Z","signed_message":"canonical_sha256_bytes"},"source_id":"1008.4156","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b90699e6290079e2b2245b808e40959c073a0fc937ad1aed5aace353ffa02a68","sha256:51e393a673ddea16af3f2235a4be5d0f8ac32daa282c7859c6426925b979415e"],"state_sha256":"d38af0a5de6395ab5992d18f65be12d45e2ba82db2fa430ac7d949cea4e13c48"}