{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:SWIG5IX5YGHLWB2G7AH5PZQAXU","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":"00bec457b3c99f1a7e96a18333df511f415ca9c8ace327708fbfe16a0a1de098","cross_cats_sorted":["astro-ph.HE","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-04-22T05:32:57Z","title_canon_sha256":"1b5871bbc3b98248cdba6c8657979a55b1769a898891e51a6581089c6191d706"},"schema_version":"1.0","source":{"id":"1604.06538","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.06538","created_at":"2026-05-18T01:14:52Z"},{"alias_kind":"arxiv_version","alias_value":"1604.06538v2","created_at":"2026-05-18T01:14:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.06538","created_at":"2026-05-18T01:14:52Z"},{"alias_kind":"pith_short_12","alias_value":"SWIG5IX5YGHL","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_16","alias_value":"SWIG5IX5YGHLWB2G","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_8","alias_value":"SWIG5IX5","created_at":"2026-05-18T12:30:44Z"}],"graph_snapshots":[{"event_id":"sha256:78439415a8343cce3f4eb773ceb0b846e3b00ae3f2ac291a85d2d816a228283e","target":"graph","created_at":"2026-05-18T01:14:52Z","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":"The maximum frequency of gravitational waves (GWs) detectable with traditional pulsar timing methods is set by the Nyquist frequency ($f_{\\rm{Ny}}$) of the observation. Beyond this frequency, GWs leave no temporal-correlated signals; instead, they appear as white noise in the timing residuals. The variance of the GW-induced white noise is a function of the position of the pulsars relative to the GW source. By observing this unique functional form in the timing data, we propose that we can detect GWs of frequency $>$ $f_{\\rm{Ny}}$ (super-Nyquist frequency GWs; SNFGWs). We demonstrate the feasib","authors_text":"S.-N. Zhang, S.-X Yi","cross_cats":["astro-ph.HE","gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-04-22T05:32:57Z","title":"Detecting super-Nyquist-frequency gravitational waves using a pulsar timing array"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.06538","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:d3dab5614108fea580b844f759560b932b095d5391e8135230fd16209a7c0e64","target":"record","created_at":"2026-05-18T01:14:52Z","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":"00bec457b3c99f1a7e96a18333df511f415ca9c8ace327708fbfe16a0a1de098","cross_cats_sorted":["astro-ph.HE","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-04-22T05:32:57Z","title_canon_sha256":"1b5871bbc3b98248cdba6c8657979a55b1769a898891e51a6581089c6191d706"},"schema_version":"1.0","source":{"id":"1604.06538","kind":"arxiv","version":2}},"canonical_sha256":"95906ea2fdc18ebb0746f80fd7e600bd22f0b5e74e91a998d682a9f8cfdc5063","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"95906ea2fdc18ebb0746f80fd7e600bd22f0b5e74e91a998d682a9f8cfdc5063","first_computed_at":"2026-05-18T01:14:52.212768Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:14:52.212768Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6ozZLSJDRtwmh/AcSzW4w64jdYiIqqBoaMyUPNAv61jUEi0vJvF3Z7vvBrZcRKIWse1ILELtGrE6oBqhdUpSCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:14:52.213410Z","signed_message":"canonical_sha256_bytes"},"source_id":"1604.06538","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d3dab5614108fea580b844f759560b932b095d5391e8135230fd16209a7c0e64","sha256:78439415a8343cce3f4eb773ceb0b846e3b00ae3f2ac291a85d2d816a228283e"],"state_sha256":"943f8ee982acef4d461687d43259c42700f2f374e6ead916b0a8887675a82a74"}