{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:JCVZTKQY4T5UGE4H4IYI2SU7PD","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":"9e76a3e8699be294991ade7131e86482532f6084e2831d79d16b60f86f32490c","cross_cats_sorted":["astro-ph.CO"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-10-10T18:00:02Z","title_canon_sha256":"b98cefa8a5c4ebe4e12affaf3d72701be0fe1e899c357ee6c21393b6be705a81"},"schema_version":"1.0","source":{"id":"2310.06896","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2310.06896","created_at":"2026-07-05T07:31:33Z"},{"alias_kind":"arxiv_version","alias_value":"2310.06896v2","created_at":"2026-07-05T07:31:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2310.06896","created_at":"2026-07-05T07:31:33Z"},{"alias_kind":"pith_short_12","alias_value":"JCVZTKQY4T5U","created_at":"2026-07-05T07:31:33Z"},{"alias_kind":"pith_short_16","alias_value":"JCVZTKQY4T5UGE4H","created_at":"2026-07-05T07:31:33Z"},{"alias_kind":"pith_short_8","alias_value":"JCVZTKQY","created_at":"2026-07-05T07:31:33Z"}],"graph_snapshots":[{"event_id":"sha256:ba89f521877c119654980827a919b7fdd5251b1b742bf561591cfd76b4d8cb7d","target":"graph","created_at":"2026-07-05T07:31:33Z","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/2310.06896/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a new observational test to identify massive black hole binaries in large multi-epoch spectroscopical catalogues and to probe the real nature of already proposed binary candidates. The test is tailored for binaries with separations large enough to allow each black hole to retain its own broad line region. In this limit the fast AGN variability typically observed over months cannot be associated to the much longer binary period, and it is assumed (as for the case of single black holes) to be the consequence of the evolution of the innermost regions of the two accretion discs. A simpl","authors_text":"Fabio Rigamonti, Massimo Dotti, Riccardo Buscicchio, Roberto Decarli, Stefano Rinaldi, Walter Del Pozzo","cross_cats":["astro-ph.CO"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-10-10T18:00:02Z","title":"A fast test for the identification and confirmation of massive black hole binaries"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2310.06896","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:f3d10b63f4e8a9c4fd11a943b6afb6e98040e1110f9fed635c32f1bb08a67f9c","target":"record","created_at":"2026-07-05T07:31:33Z","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":"9e76a3e8699be294991ade7131e86482532f6084e2831d79d16b60f86f32490c","cross_cats_sorted":["astro-ph.CO"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-10-10T18:00:02Z","title_canon_sha256":"b98cefa8a5c4ebe4e12affaf3d72701be0fe1e899c357ee6c21393b6be705a81"},"schema_version":"1.0","source":{"id":"2310.06896","kind":"arxiv","version":2}},"canonical_sha256":"48ab99aa18e4fb431387e2308d4a9f78d54d281c8a4b3ad288efd6e3c3c82389","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"48ab99aa18e4fb431387e2308d4a9f78d54d281c8a4b3ad288efd6e3c3c82389","first_computed_at":"2026-07-05T07:31:33.842461Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:31:33.842461Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5btb7pV2u1w0GpRJARZMbBDfQp0izv+a+JuuJaIew4VbKDz7I5d04Nb5bg8HhmW1UWJD9zBVGZQU4wYMAZQmDg==","signature_status":"signed_v1","signed_at":"2026-07-05T07:31:33.842984Z","signed_message":"canonical_sha256_bytes"},"source_id":"2310.06896","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f3d10b63f4e8a9c4fd11a943b6afb6e98040e1110f9fed635c32f1bb08a67f9c","sha256:ba89f521877c119654980827a919b7fdd5251b1b742bf561591cfd76b4d8cb7d"],"state_sha256":"8ffcbcc8ded57895b5a48d9aabb4bbb0a2a6338e59505de3b4d0e1dcba74a2df"}