{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:TXY2RDM262ADZWAGJFDW3QWAHE","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":"bbd4aff70fe015211c152ae8526ce1cae38298d9af0045cb9b00bcf99b44bb79","cross_cats_sorted":["astro-ph.GA","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-09-12T16:44:48Z","title_canon_sha256":"14f844f1c9d6fdbedfd7297dd5bac40d404f91371dbdcdee3c9392cba95f5680"},"schema_version":"1.0","source":{"id":"1209.2658","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.2658","created_at":"2026-05-18T01:54:29Z"},{"alias_kind":"arxiv_version","alias_value":"1209.2658v1","created_at":"2026-05-18T01:54:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.2658","created_at":"2026-05-18T01:54:29Z"},{"alias_kind":"pith_short_12","alias_value":"TXY2RDM262AD","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"TXY2RDM262ADZWAG","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"TXY2RDM2","created_at":"2026-05-18T12:27:23Z"}],"graph_snapshots":[{"event_id":"sha256:c1eb8caa6d7f9e8f03c6706d8484518fe1aae9756aed94afb78682049dc410e5","target":"graph","created_at":"2026-05-18T01:54:29Z","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":"There are no known double black hole (BH-BH) or black hole-neutron star (BH-NS) systems. We argue that Cyg X-3 is a very likely BH-BH or BH-NS progenitor. This Galactic X-ray binary consists of a compact object, wind-fed by a Wolf-Rayet (WR) type companion. Based on a comprehensive analysis of observational data, it was recently argued that Cyg X-3 harbors a 2-4.5 Msun BH and a 7.5-14.2 Msun WR companion. We find that the fate of such a binary leads to the prompt (<1 Myr) formation of a close BH-BH system for the high end of the allowed WR mass (M_WR>13 Msun). For the low- to mid-mass range of","authors_text":"Andrzej Zdziarski, B.S. Sathyaprakash, Ilya Mandel, Joanna Mikolajewska, Krzysztof Belczynski, Tomasz Bulik","cross_cats":["astro-ph.GA","gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-09-12T16:44:48Z","title":"Cyg X-3: a Galactic double black hole or black hole-neutron star progenitor"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.2658","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":"sha256:8979c41ff187e5473568ee6ec6fc755212761c4fbaa5df0ac6c09b98531011c6","target":"record","created_at":"2026-05-18T01:54:29Z","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":"bbd4aff70fe015211c152ae8526ce1cae38298d9af0045cb9b00bcf99b44bb79","cross_cats_sorted":["astro-ph.GA","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-09-12T16:44:48Z","title_canon_sha256":"14f844f1c9d6fdbedfd7297dd5bac40d404f91371dbdcdee3c9392cba95f5680"},"schema_version":"1.0","source":{"id":"1209.2658","kind":"arxiv","version":1}},"canonical_sha256":"9df1a88d9af6803cd80649476dc2c0391e117df2189b088c2c4a4c944bdc6cff","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9df1a88d9af6803cd80649476dc2c0391e117df2189b088c2c4a4c944bdc6cff","first_computed_at":"2026-05-18T01:54:29.831408Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:54:29.831408Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9vV7MOBN1ThNdm6lm7kCbb1hfLwVIZh20yjp0fYq8JIKefC5mDG4bTfMXlzWJ2aNx6w61gsDVUK6P7osbt07AA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:54:29.831990Z","signed_message":"canonical_sha256_bytes"},"source_id":"1209.2658","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8979c41ff187e5473568ee6ec6fc755212761c4fbaa5df0ac6c09b98531011c6","sha256:c1eb8caa6d7f9e8f03c6706d8484518fe1aae9756aed94afb78682049dc410e5"],"state_sha256":"6ab085aee89e0662b67e260d2a6e2f0ee7d6954f5a102aa20f3c543f2843e731"}