{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:IVRH3V2L2ON6OOVDMEQVOB2JTB","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":"4657f69c54fb6e3cde5149a5983dc7429a52fd98976ac5ca190c2259ad6ba55b","cross_cats_sorted":["gr-qc"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-07-12T00:50:20Z","title_canon_sha256":"c1e9dd076c8a5537834efdc1177fa8b4b007b0d38e3b05090dbeb6022bd640c6"},"schema_version":"1.0","source":{"id":"2507.09099","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.09099","created_at":"2026-07-05T11:36:03Z"},{"alias_kind":"arxiv_version","alias_value":"2507.09099v1","created_at":"2026-07-05T11:36:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.09099","created_at":"2026-07-05T11:36:03Z"},{"alias_kind":"pith_short_12","alias_value":"IVRH3V2L2ON6","created_at":"2026-07-05T11:36:03Z"},{"alias_kind":"pith_short_16","alias_value":"IVRH3V2L2ON6OOVD","created_at":"2026-07-05T11:36:03Z"},{"alias_kind":"pith_short_8","alias_value":"IVRH3V2L","created_at":"2026-07-05T11:36:03Z"}],"graph_snapshots":[{"event_id":"sha256:e2d0462110793ef610404104f97a8227c19133bfb61749cfb25569ed56537ab2","target":"graph","created_at":"2026-07-05T11:36:03Z","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/2507.09099/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In recent years, the existence of a gap in the mass spectrum of compact objects formed from stellar collapse, between the heaviest neutron stars and the lightest black holes, has been a matter of significant debate. The presence or absence of a mass gap has implications for the supernova mechanism, as well as being a fundamental property of the compact object mass function. In X-ray binaries containing black holes a gap is observed, but it is not known whether this is representative of a true gap in the mass function or due to selection effects or systematic biases in mass estimation. Binary b","authors_text":"Anarya Ray, Vicky Kalogera, Will Farr","cross_cats":["gr-qc"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-07-12T00:50:20Z","title":"Hiding Out at the Low End: No Gap and a Peak in the Black-Hole Mass Spectrum"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.09099","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:d372352ff38308b73dfa98347ec191dc0af90c43d1f0224a0a42151f9177f6f6","target":"record","created_at":"2026-07-05T11:36:03Z","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":"4657f69c54fb6e3cde5149a5983dc7429a52fd98976ac5ca190c2259ad6ba55b","cross_cats_sorted":["gr-qc"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-07-12T00:50:20Z","title_canon_sha256":"c1e9dd076c8a5537834efdc1177fa8b4b007b0d38e3b05090dbeb6022bd640c6"},"schema_version":"1.0","source":{"id":"2507.09099","kind":"arxiv","version":1}},"canonical_sha256":"45627dd74bd39be73aa361215707499851ef4b55e09cdec2a82b422d2dee1b74","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"45627dd74bd39be73aa361215707499851ef4b55e09cdec2a82b422d2dee1b74","first_computed_at":"2026-07-05T11:36:03.575102Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:36:03.575102Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JrhyGJP6lgz2qDmf98F/0IY0l77MuKBZg25ia3glfx6YsPsMx5TU+i0IVwjBe8bWxI/GcZGnFOrPpL08qQ1ZAg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:36:03.575550Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.09099","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d372352ff38308b73dfa98347ec191dc0af90c43d1f0224a0a42151f9177f6f6","sha256:e2d0462110793ef610404104f97a8227c19133bfb61749cfb25569ed56537ab2"],"state_sha256":"0fab46541d27c7b5076a4e9b21baa9470fc584e40a8e32adee4293d53db1f5e7"}