{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:MG4LBJ5Y5WYQ3HCGLCEOEUC4G6","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":"e83fbbd20626c0caf46981daf224a46f96b8aba038aadb770cd881eb6f9f6bb3","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-06-18T17:22:12Z","title_canon_sha256":"17f953d4bf8b9c582b0f9ab467693e7959b9b147133094abf1b509f50b261784"},"schema_version":"1.0","source":{"id":"1806.07270","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.07270","created_at":"2026-05-18T00:12:51Z"},{"alias_kind":"arxiv_version","alias_value":"1806.07270v1","created_at":"2026-05-18T00:12:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.07270","created_at":"2026-05-18T00:12:51Z"},{"alias_kind":"pith_short_12","alias_value":"MG4LBJ5Y5WYQ","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"MG4LBJ5Y5WYQ3HCG","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"MG4LBJ5Y","created_at":"2026-05-18T12:32:37Z"}],"graph_snapshots":[{"event_id":"sha256:ab3338770bca111f35d42ae6b2b5846e725c2c9ee535a54c7cd2600e399284ee","target":"graph","created_at":"2026-05-18T00:12:51Z","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 discuss the case for using the Next Generation Very Large Array both to discover new black hole X-ray binaries astrometrically, and to characterize them. We anticipate that the ngVLA will be able to find $\\sim$100 new black hole X-ray binaries, as well as a host of other interesting radio stars, in a few hundred hour survey. Parallax and astrometric wobble measurements will be achievable in feasible follow-up surveys especially using long baseline capabilities. The ngVLA's high angular resolution, high survey speed, and high frequency sensitivity give it a unique range of parameter space ov","authors_text":"Greg Sivakoff (Alberta), James Miller-Jones (Curtin), Jay Strader (Michigan State), Laura Chomiuk, Thomas J. Maccarone (Texas Tech)","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-06-18T17:22:12Z","title":"Revealing the Galactic Population of BHs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.07270","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:d1ee2f7eed36c16ce7356f114a8e72d491ac66b25134702ebf8ef81edb4fcd6e","target":"record","created_at":"2026-05-18T00:12:51Z","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":"e83fbbd20626c0caf46981daf224a46f96b8aba038aadb770cd881eb6f9f6bb3","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-06-18T17:22:12Z","title_canon_sha256":"17f953d4bf8b9c582b0f9ab467693e7959b9b147133094abf1b509f50b261784"},"schema_version":"1.0","source":{"id":"1806.07270","kind":"arxiv","version":1}},"canonical_sha256":"61b8b0a7b8edb10d9c465888e2505c37a1b7cc33ad74290351da2f07cc747e29","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"61b8b0a7b8edb10d9c465888e2505c37a1b7cc33ad74290351da2f07cc747e29","first_computed_at":"2026-05-18T00:12:51.433587Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:12:51.433587Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Gl6+/+vQgwVke+dl9Pjxwo6BNO0Rh4+o8kJkNh+4y61mDnNXxJc+IxI1phSYLQa1CnIyTsHXLsNa/5mHO6/1Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:12:51.434010Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.07270","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d1ee2f7eed36c16ce7356f114a8e72d491ac66b25134702ebf8ef81edb4fcd6e","sha256:ab3338770bca111f35d42ae6b2b5846e725c2c9ee535a54c7cd2600e399284ee"],"state_sha256":"c9e1feefc71fd70e6dbbdbfb469b4691beca87a43b8874d264aaef3d8c9de0ed"}