{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:IOMXWX3CSJ2PM54B63IZKXG5T7","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":"96468ec2957e5b1c8238ac4cfa2af2509c3d2fd3843527657e4851c086904521","cross_cats_sorted":["astro-ph"],"license":"","primary_cat":"gr-qc","submitted_at":"2007-04-09T09:30:38Z","title_canon_sha256":"87971edd8a3eaffa83fd8f7915340a6f882b584fa418d56e2d14e2ee6c16c9df"},"schema_version":"1.0","source":{"id":"0704.1086","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0704.1086","created_at":"2026-07-04T15:21:43Z"},{"alias_kind":"arxiv_version","alias_value":"0704.1086v2","created_at":"2026-07-04T15:21:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0704.1086","created_at":"2026-07-04T15:21:43Z"},{"alias_kind":"pith_short_12","alias_value":"IOMXWX3CSJ2P","created_at":"2026-07-04T15:21:43Z"},{"alias_kind":"pith_short_16","alias_value":"IOMXWX3CSJ2PM54B","created_at":"2026-07-04T15:21:43Z"},{"alias_kind":"pith_short_8","alias_value":"IOMXWX3C","created_at":"2026-07-04T15:21:43Z"}],"graph_snapshots":[{"event_id":"sha256:5e4fc3b03e6d13870fed60a87f5e1d2764e7e4421e35f02e4fa4a89df4cc148e","target":"graph","created_at":"2026-07-04T15:21:43Z","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/0704.1086/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Current expectations on the signal to noise ratios and masses of supermassive black holes which the Laser Interferometer Space Antenna (LISA) can observe are based on using in matched filtering only the dominant harmonic of the inspiral waveform at twice the orbital frequency. Other harmonics will affect the signal-to-noise ratio of systems currently believed to be observable by LISA. More significantly, inclusion of other harmonics in our matched filters would mean that more massive systems that were previously thought to be {\\it not} visible in LISA should be detectable with reasonable SNRs.","authors_text":"Bala R. Iyer, B. S. Sathyaprakash, K.G. Arun, Siddhartha Sinha","cross_cats":["astro-ph"],"headline":"","license":"","primary_cat":"gr-qc","submitted_at":"2007-04-09T09:30:38Z","title":"Higher harmonics increase LISA's mass reach for supermassive black holes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0704.1086","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":"sha256:0d60b4a347b478bff39e9669aa0b00a6ea08223d46818b8b5c1dcc65db777d63","target":"record","created_at":"2026-07-04T15:21:43Z","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":"96468ec2957e5b1c8238ac4cfa2af2509c3d2fd3843527657e4851c086904521","cross_cats_sorted":["astro-ph"],"license":"","primary_cat":"gr-qc","submitted_at":"2007-04-09T09:30:38Z","title_canon_sha256":"87971edd8a3eaffa83fd8f7915340a6f882b584fa418d56e2d14e2ee6c16c9df"},"schema_version":"1.0","source":{"id":"0704.1086","kind":"arxiv","version":2}},"canonical_sha256":"43997b5f629274f67781f6d1955cdd9fff63f7cb8fd7489b97cfe66102d69e00","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"43997b5f629274f67781f6d1955cdd9fff63f7cb8fd7489b97cfe66102d69e00","first_computed_at":"2026-07-04T15:21:43.461976Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:21:43.461976Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/I8wjSCrPxZViMxPX31Yl1FO3wvazL2Q95O86TYnsKNmfiumiUNSbBcWLYK7ZuKEJZC0qWjB9+Nx2EAEgZ2QBQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:21:43.462385Z","signed_message":"canonical_sha256_bytes"},"source_id":"0704.1086","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0d60b4a347b478bff39e9669aa0b00a6ea08223d46818b8b5c1dcc65db777d63","sha256:5e4fc3b03e6d13870fed60a87f5e1d2764e7e4421e35f02e4fa4a89df4cc148e"],"state_sha256":"e7a06caf3ba02060c63e79ceb54f9aed5e8f1fb3d45013fcfef35f45b982f224"}