{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:FIPCXZ3B2ZMGCSGWDQ46KFMLHR","short_pith_number":"pith:FIPCXZ3B","canonical_record":{"source":{"id":"2401.17495","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2024-01-30T23:00:40Z","cross_cats_sorted":["astro-ph.IM","physics.data-an"],"title_canon_sha256":"bff800f8098ec3fdcbb57417dc27a66efd488542bf6b29a6d1fa0b3991e2646a","abstract_canon_sha256":"cf4016054e278167b236faf8ba68b7e6a262cb62be728af342baa8d641c0ba00"},"schema_version":"1.0"},"canonical_sha256":"2a1e2be761d6586148d61c39e5158b3c502e5e1418f16de026f50c179b645431","source":{"kind":"arxiv","id":"2401.17495","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2401.17495","created_at":"2026-07-05T08:48:40Z"},{"alias_kind":"arxiv_version","alias_value":"2401.17495v2","created_at":"2026-07-05T08:48:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.17495","created_at":"2026-07-05T08:48:40Z"},{"alias_kind":"pith_short_12","alias_value":"FIPCXZ3B2ZMG","created_at":"2026-07-05T08:48:40Z"},{"alias_kind":"pith_short_16","alias_value":"FIPCXZ3B2ZMGCSGW","created_at":"2026-07-05T08:48:40Z"},{"alias_kind":"pith_short_8","alias_value":"FIPCXZ3B","created_at":"2026-07-05T08:48:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:FIPCXZ3B2ZMGCSGWDQ46KFMLHR","target":"record","payload":{"canonical_record":{"source":{"id":"2401.17495","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2024-01-30T23:00:40Z","cross_cats_sorted":["astro-ph.IM","physics.data-an"],"title_canon_sha256":"bff800f8098ec3fdcbb57417dc27a66efd488542bf6b29a6d1fa0b3991e2646a","abstract_canon_sha256":"cf4016054e278167b236faf8ba68b7e6a262cb62be728af342baa8d641c0ba00"},"schema_version":"1.0"},"canonical_sha256":"2a1e2be761d6586148d61c39e5158b3c502e5e1418f16de026f50c179b645431","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:48:40.882804Z","signature_b64":"nPf9GvYTJoMoIQBPHtfE0/hd62lT1bczW8oehjDvkgEbBLb14A0OtDz59nDr6Y+jV+iF9Zq+SEW2F4doR5AEBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2a1e2be761d6586148d61c39e5158b3c502e5e1418f16de026f50c179b645431","last_reissued_at":"2026-07-05T08:48:40.882380Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:48:40.882380Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2401.17495","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":"2026-07-05T08:48:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TKEbMSTXJHeXbopMxo9MA+Z7FLUxiSC/2WcDu5rgnK/vMkLPeYWktkhLyl6gU+xCvGlGS27EZaxC8U3m/SOMCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T15:20:53.385905Z"},"content_sha256":"2a88c5e723cb8b61af0a79abcd20904fee14f2a7a3f3478f732d7f0fa675c14b","schema_version":"1.0","event_id":"sha256:2a88c5e723cb8b61af0a79abcd20904fee14f2a7a3f3478f732d7f0fa675c14b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:FIPCXZ3B2ZMGCSGWDQ46KFMLHR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Identifying noise transients in gravitational-wave data arising from nonlinear couplings","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.IM","physics.data-an"],"primary_cat":"gr-qc","authors_text":"Anupreeta More, Bernard Hall, Nairwita Mazumder, Sudhagar Suyamprakasam, Sukanta Bose","submitted_at":"2024-01-30T23:00:40Z","abstract_excerpt":"Noise in various interferometer systems can sometimes couple non-linearly to create excess noise in the gravitational wave (GW) strain data. Third-order statistics, such as bicoherence and biphase, can identify these couplings and help discriminate those occurrences from astrophysical GW signals. However, the conventional analysis can yield large bicoherence values even when no phase-coupling is present, thereby, resulting in false identifications. Introducing artificial phase randomization in computing the bicoherence reduces such occurrences with negligible impact on its effectiveness for de"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.17495","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/2401.17495/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":"2026-07-05T08:48:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZA3+GMT7JkJ7coPd0iEKgcINGm4/9ZCLf2uAxk0Z46HiCeH4w0ZMUjMqJQ9fStn/KzHUPFdp4OGAhdkppxduBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T15:20:53.386857Z"},"content_sha256":"0108bab55154672a30ae2261953b65ec72a997512ffd1dd053d7bba31205aa6e","schema_version":"1.0","event_id":"sha256:0108bab55154672a30ae2261953b65ec72a997512ffd1dd053d7bba31205aa6e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FIPCXZ3B2ZMGCSGWDQ46KFMLHR/bundle.json","state_url":"https://pith.science/pith/FIPCXZ3B2ZMGCSGWDQ46KFMLHR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FIPCXZ3B2ZMGCSGWDQ46KFMLHR/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":"2026-08-07T15:20:53Z","links":{"resolver":"https://pith.science/pith/FIPCXZ3B2ZMGCSGWDQ46KFMLHR","bundle":"https://pith.science/pith/FIPCXZ3B2ZMGCSGWDQ46KFMLHR/bundle.json","state":"https://pith.science/pith/FIPCXZ3B2ZMGCSGWDQ46KFMLHR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FIPCXZ3B2ZMGCSGWDQ46KFMLHR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:FIPCXZ3B2ZMGCSGWDQ46KFMLHR","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":"cf4016054e278167b236faf8ba68b7e6a262cb62be728af342baa8d641c0ba00","cross_cats_sorted":["astro-ph.IM","physics.data-an"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2024-01-30T23:00:40Z","title_canon_sha256":"bff800f8098ec3fdcbb57417dc27a66efd488542bf6b29a6d1fa0b3991e2646a"},"schema_version":"1.0","source":{"id":"2401.17495","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2401.17495","created_at":"2026-07-05T08:48:40Z"},{"alias_kind":"arxiv_version","alias_value":"2401.17495v2","created_at":"2026-07-05T08:48:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.17495","created_at":"2026-07-05T08:48:40Z"},{"alias_kind":"pith_short_12","alias_value":"FIPCXZ3B2ZMG","created_at":"2026-07-05T08:48:40Z"},{"alias_kind":"pith_short_16","alias_value":"FIPCXZ3B2ZMGCSGW","created_at":"2026-07-05T08:48:40Z"},{"alias_kind":"pith_short_8","alias_value":"FIPCXZ3B","created_at":"2026-07-05T08:48:40Z"}],"graph_snapshots":[{"event_id":"sha256:0108bab55154672a30ae2261953b65ec72a997512ffd1dd053d7bba31205aa6e","target":"graph","created_at":"2026-07-05T08:48:40Z","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/2401.17495/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Noise in various interferometer systems can sometimes couple non-linearly to create excess noise in the gravitational wave (GW) strain data. Third-order statistics, such as bicoherence and biphase, can identify these couplings and help discriminate those occurrences from astrophysical GW signals. However, the conventional analysis can yield large bicoherence values even when no phase-coupling is present, thereby, resulting in false identifications. Introducing artificial phase randomization in computing the bicoherence reduces such occurrences with negligible impact on its effectiveness for de","authors_text":"Anupreeta More, Bernard Hall, Nairwita Mazumder, Sudhagar Suyamprakasam, Sukanta Bose","cross_cats":["astro-ph.IM","physics.data-an"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2024-01-30T23:00:40Z","title":"Identifying noise transients in gravitational-wave data arising from nonlinear couplings"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.17495","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":"sha256:2a88c5e723cb8b61af0a79abcd20904fee14f2a7a3f3478f732d7f0fa675c14b","target":"record","created_at":"2026-07-05T08:48:40Z","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":"cf4016054e278167b236faf8ba68b7e6a262cb62be728af342baa8d641c0ba00","cross_cats_sorted":["astro-ph.IM","physics.data-an"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2024-01-30T23:00:40Z","title_canon_sha256":"bff800f8098ec3fdcbb57417dc27a66efd488542bf6b29a6d1fa0b3991e2646a"},"schema_version":"1.0","source":{"id":"2401.17495","kind":"arxiv","version":2}},"canonical_sha256":"2a1e2be761d6586148d61c39e5158b3c502e5e1418f16de026f50c179b645431","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2a1e2be761d6586148d61c39e5158b3c502e5e1418f16de026f50c179b645431","first_computed_at":"2026-07-05T08:48:40.882380Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:48:40.882380Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nPf9GvYTJoMoIQBPHtfE0/hd62lT1bczW8oehjDvkgEbBLb14A0OtDz59nDr6Y+jV+iF9Zq+SEW2F4doR5AEBg==","signature_status":"signed_v1","signed_at":"2026-07-05T08:48:40.882804Z","signed_message":"canonical_sha256_bytes"},"source_id":"2401.17495","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2a88c5e723cb8b61af0a79abcd20904fee14f2a7a3f3478f732d7f0fa675c14b","sha256:0108bab55154672a30ae2261953b65ec72a997512ffd1dd053d7bba31205aa6e"],"state_sha256":"d2fb50847256391c8bda4db912e35ef14beef59871625d758bb726b5fb0f7435"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ADFH2ZqROVztBUIL6umal48oh4eodmLazI/uOIN6A4DVcNAmpvSHjoNHiveWs5I414lVrzIZynnNUJmgqxCRAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T15:20:53.394724Z","bundle_sha256":"1c484a2003865d47b3e8ae34547e1fb8652bb8557e0f85b6418ea0d72c863254"}}