{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:65QRILHUJ2TEGG54HDLXOITSJY","short_pith_number":"pith:65QRILHU","canonical_record":{"source":{"id":"2312.11808","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-12-19T02:46:02Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"c2fa0bf06317186f7d2924b94372253838ae140c6639fd91e156ea4b7a437e9a","abstract_canon_sha256":"f01bc4189bb7ec1db0f5d113e79f9b5941296e6272e15fa444378b4f91656134"},"schema_version":"1.0"},"canonical_sha256":"f761142cf44ea6431bbc38d77722724e1feb0f3b9a5850100572e76ce1e9abba","source":{"kind":"arxiv","id":"2312.11808","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2312.11808","created_at":"2026-07-05T07:51:37Z"},{"alias_kind":"arxiv_version","alias_value":"2312.11808v2","created_at":"2026-07-05T07:51:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2312.11808","created_at":"2026-07-05T07:51:37Z"},{"alias_kind":"pith_short_12","alias_value":"65QRILHUJ2TE","created_at":"2026-07-05T07:51:37Z"},{"alias_kind":"pith_short_16","alias_value":"65QRILHUJ2TEGG54","created_at":"2026-07-05T07:51:37Z"},{"alias_kind":"pith_short_8","alias_value":"65QRILHU","created_at":"2026-07-05T07:51:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:65QRILHUJ2TEGG54HDLXOITSJY","target":"record","payload":{"canonical_record":{"source":{"id":"2312.11808","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-12-19T02:46:02Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"c2fa0bf06317186f7d2924b94372253838ae140c6639fd91e156ea4b7a437e9a","abstract_canon_sha256":"f01bc4189bb7ec1db0f5d113e79f9b5941296e6272e15fa444378b4f91656134"},"schema_version":"1.0"},"canonical_sha256":"f761142cf44ea6431bbc38d77722724e1feb0f3b9a5850100572e76ce1e9abba","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:51:37.001506Z","signature_b64":"zmaZh3qvpsuaU/aK7bFE5fjeRhD+D0qTsJSSsaFOHpygrqe89qDTOQBTNnB5rXFcIj8QtytZfeULvEhLA/q8DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f761142cf44ea6431bbc38d77722724e1feb0f3b9a5850100572e76ce1e9abba","last_reissued_at":"2026-07-05T07:51:37.001046Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:51:37.001046Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2312.11808","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T07:51:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KO2IVE8Zew0rzIuWv9MDesIjjjeP5s9xlaJZJN8he79MFQeeMhp1GYHG3cyUaxdfgaMBCyZDTSd6JkSALTWDDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T17:25:58.577685Z"},"content_sha256":"816faecd15886dd97bc0eb146134a3476fcebe4f24e1b030f30f4a05a30c4985","schema_version":"1.0","event_id":"sha256:816faecd15886dd97bc0eb146134a3476fcebe4f24e1b030f30f4a05a30c4985"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:65QRILHUJ2TEGG54HDLXOITSJY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Bayesian power spectral estimation of gravitational wave detector noise revisited","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"gr-qc","authors_text":"Neil Cornish, Toral Gupta","submitted_at":"2023-12-19T02:46:02Z","abstract_excerpt":"The analysis of gravitational wave interferometer data requires estimates for the noise covariance matrix. For stationary noise, this amounts to estimating the power spectrum. Classical methods such as Welch averaging are used in many analyses, but this method require large stretches of ``off-source'' data, where the assumption of stationarity may break down. For this reason, Bayesian spectral estimates using only ``on-source'' data are becoming more widely used, but the Bayesian approach tends to be slower, and more computationally expensive than classical methods. Here we introduce numerous "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.11808","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2312.11808/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T07:51:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W+jlQSxKcEYOpiZslgiou6DAGM9hzxp7eDeTLCdCP7y+0Lrqetb2ZA21FQ7QqY+DkenaXhTA9CY8JBqZopq0DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T17:25:58.578230Z"},"content_sha256":"687d22e2f55c9e63fff4cfd762dcd82b685c3be85935d7f12c78be0a170fa441","schema_version":"1.0","event_id":"sha256:687d22e2f55c9e63fff4cfd762dcd82b685c3be85935d7f12c78be0a170fa441"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/65QRILHUJ2TEGG54HDLXOITSJY/bundle.json","state_url":"https://pith.science/pith/65QRILHUJ2TEGG54HDLXOITSJY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/65QRILHUJ2TEGG54HDLXOITSJY/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-04T17:25:58Z","links":{"resolver":"https://pith.science/pith/65QRILHUJ2TEGG54HDLXOITSJY","bundle":"https://pith.science/pith/65QRILHUJ2TEGG54HDLXOITSJY/bundle.json","state":"https://pith.science/pith/65QRILHUJ2TEGG54HDLXOITSJY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/65QRILHUJ2TEGG54HDLXOITSJY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:65QRILHUJ2TEGG54HDLXOITSJY","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":"f01bc4189bb7ec1db0f5d113e79f9b5941296e6272e15fa444378b4f91656134","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-12-19T02:46:02Z","title_canon_sha256":"c2fa0bf06317186f7d2924b94372253838ae140c6639fd91e156ea4b7a437e9a"},"schema_version":"1.0","source":{"id":"2312.11808","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2312.11808","created_at":"2026-07-05T07:51:37Z"},{"alias_kind":"arxiv_version","alias_value":"2312.11808v2","created_at":"2026-07-05T07:51:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2312.11808","created_at":"2026-07-05T07:51:37Z"},{"alias_kind":"pith_short_12","alias_value":"65QRILHUJ2TE","created_at":"2026-07-05T07:51:37Z"},{"alias_kind":"pith_short_16","alias_value":"65QRILHUJ2TEGG54","created_at":"2026-07-05T07:51:37Z"},{"alias_kind":"pith_short_8","alias_value":"65QRILHU","created_at":"2026-07-05T07:51:37Z"}],"graph_snapshots":[{"event_id":"sha256:687d22e2f55c9e63fff4cfd762dcd82b685c3be85935d7f12c78be0a170fa441","target":"graph","created_at":"2026-07-05T07:51:37Z","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/2312.11808/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The analysis of gravitational wave interferometer data requires estimates for the noise covariance matrix. For stationary noise, this amounts to estimating the power spectrum. Classical methods such as Welch averaging are used in many analyses, but this method require large stretches of ``off-source'' data, where the assumption of stationarity may break down. For this reason, Bayesian spectral estimates using only ``on-source'' data are becoming more widely used, but the Bayesian approach tends to be slower, and more computationally expensive than classical methods. Here we introduce numerous ","authors_text":"Neil Cornish, Toral Gupta","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-12-19T02:46:02Z","title":"Bayesian power spectral estimation of gravitational wave detector noise revisited"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.11808","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":"sha256:816faecd15886dd97bc0eb146134a3476fcebe4f24e1b030f30f4a05a30c4985","target":"record","created_at":"2026-07-05T07:51:37Z","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":"f01bc4189bb7ec1db0f5d113e79f9b5941296e6272e15fa444378b4f91656134","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-12-19T02:46:02Z","title_canon_sha256":"c2fa0bf06317186f7d2924b94372253838ae140c6639fd91e156ea4b7a437e9a"},"schema_version":"1.0","source":{"id":"2312.11808","kind":"arxiv","version":2}},"canonical_sha256":"f761142cf44ea6431bbc38d77722724e1feb0f3b9a5850100572e76ce1e9abba","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f761142cf44ea6431bbc38d77722724e1feb0f3b9a5850100572e76ce1e9abba","first_computed_at":"2026-07-05T07:51:37.001046Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:51:37.001046Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zmaZh3qvpsuaU/aK7bFE5fjeRhD+D0qTsJSSsaFOHpygrqe89qDTOQBTNnB5rXFcIj8QtytZfeULvEhLA/q8DA==","signature_status":"signed_v1","signed_at":"2026-07-05T07:51:37.001506Z","signed_message":"canonical_sha256_bytes"},"source_id":"2312.11808","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:816faecd15886dd97bc0eb146134a3476fcebe4f24e1b030f30f4a05a30c4985","sha256:687d22e2f55c9e63fff4cfd762dcd82b685c3be85935d7f12c78be0a170fa441"],"state_sha256":"349ee9e544962d8f509b437a5f27e557de00f2cf50620650945b0c7b390f81d7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4Z8kH4l5RY0UhW0pVj2RXMCOTYO/16tYiOPMNfuXPbY3NrtuL9WZh7bKvVLhqG6sJHqtlReVL7r3U+tAKz1zCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T17:25:58.583231Z","bundle_sha256":"5076cd6eb8d96c57e1656d3a6a244d161a544a426d5790c15afdec5c3500e302"}}