{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:OK2AI27BDM2KCYQPTYU637SMVM","short_pith_number":"pith:OK2AI27B","canonical_record":{"source":{"id":"2303.15696","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-03-28T02:49:28Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"3cf8da183b7f76ecc4794a29409d357c4a71828c0f40544d2b37103b6d19539b","abstract_canon_sha256":"15cd877f1af919d94d326752501a3f5e8a96e35ac8859cd5e9d7d26890ae36e6"},"schema_version":"1.0"},"canonical_sha256":"72b4046be11b34a1620f9e29edfe4cab391ee3412d93c8618fca7629b277627b","source":{"kind":"arxiv","id":"2303.15696","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.15696","created_at":"2026-07-05T06:34:30Z"},{"alias_kind":"arxiv_version","alias_value":"2303.15696v1","created_at":"2026-07-05T06:34:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.15696","created_at":"2026-07-05T06:34:30Z"},{"alias_kind":"pith_short_12","alias_value":"OK2AI27BDM2K","created_at":"2026-07-05T06:34:30Z"},{"alias_kind":"pith_short_16","alias_value":"OK2AI27BDM2KCYQP","created_at":"2026-07-05T06:34:30Z"},{"alias_kind":"pith_short_8","alias_value":"OK2AI27B","created_at":"2026-07-05T06:34:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:OK2AI27BDM2KCYQPTYU637SMVM","target":"record","payload":{"canonical_record":{"source":{"id":"2303.15696","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-03-28T02:49:28Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"3cf8da183b7f76ecc4794a29409d357c4a71828c0f40544d2b37103b6d19539b","abstract_canon_sha256":"15cd877f1af919d94d326752501a3f5e8a96e35ac8859cd5e9d7d26890ae36e6"},"schema_version":"1.0"},"canonical_sha256":"72b4046be11b34a1620f9e29edfe4cab391ee3412d93c8618fca7629b277627b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:34:30.375774Z","signature_b64":"y4hTb9hI30jPP5O+MKDvK3WCbkUIH7Kde8Cjeluqkvbq/5jz3MtUXcWkL0hfc+N1wMhovXWxk1srhM4s/mxACw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"72b4046be11b34a1620f9e29edfe4cab391ee3412d93c8618fca7629b277627b","last_reissued_at":"2026-07-05T06:34:30.375255Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:34:30.375255Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2303.15696","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T06:34:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4hOXHyeYGuUG1DD1NXyJnuuij0WGCaTxs45Juu0EO7B+Xr9EIPMu1AcBx4XjYmsNJ1r6ZhtvOa/iCRlFbt2JBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T11:10:18.667759Z"},"content_sha256":"60be671ee499c009d951a9e6563b753017fb4acfe684ca5061d47447f02bdf90","schema_version":"1.0","event_id":"sha256:60be671ee499c009d951a9e6563b753017fb4acfe684ca5061d47447f02bdf90"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:OK2AI27BDM2KCYQPTYU637SMVM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"pygwb: Python-based library for gravitational-wave background searches","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"gr-qc","authors_text":"Adrian Macquet, Alba Romero-Rodrguez, Andrew Matas, Arianna I. Renzini, Colm Talbot, Derek Davis, Fabio Garufi, Federico De Lillo, Gregg Harry, Guo-Chin Liu, Haowen Zhong, Ioannis Michaloliakos, Irina Dvorkin, Jessica Lawrence, Joseph D. Romano, Kamiel Janssens, Katarina Martinovic, Kevin Turbang, Kiet Pham, Leo Tsukada, Luca D'Onofrio, Max Lalleman, Nick van Remortel, Patrick Meyers, Philip Charlton, Rosa Poggiani, Sanjit Mitra, Sharan Banagiri, Shivaraj Kandhasamy, Sukanta Bose, Sylvia Biscoveanu, Tania Regimbau, Thomas Callister, Vuk Mandic","submitted_at":"2023-03-28T02:49:28Z","abstract_excerpt":"The collection of gravitational waves (GWs) that are either too weak or too numerous to be individually resolved is commonly referred to as the gravitational-wave background (GWB). A confident detection and model-driven characterization of such a signal will provide invaluable information about the evolution of the Universe and the population of GW sources within it. We present a new, user-friendly Python--based package for gravitational-wave data analysis to search for an isotropic GWB in ground--based interferometer data. We employ cross-correlation spectra of GW detector pairs to construct "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.15696","kind":"arxiv","version":1},"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/2303.15696/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":"2026-07-05T06:34:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GzpvLWum9UfMOCUh5hP3cRjw/eVx9j4/HW+cYHQJLw/9odALq7LNzp7EMhvssrncSCH/DudGvJAc8gxRXeMXDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T11:10:18.668141Z"},"content_sha256":"5c59fb1d0a87232040f3259bb019e5a4b748898697ac563d7c430d70a332e578","schema_version":"1.0","event_id":"sha256:5c59fb1d0a87232040f3259bb019e5a4b748898697ac563d7c430d70a332e578"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OK2AI27BDM2KCYQPTYU637SMVM/bundle.json","state_url":"https://pith.science/pith/OK2AI27BDM2KCYQPTYU637SMVM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OK2AI27BDM2KCYQPTYU637SMVM/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":"2026-07-06T11:10:18Z","links":{"resolver":"https://pith.science/pith/OK2AI27BDM2KCYQPTYU637SMVM","bundle":"https://pith.science/pith/OK2AI27BDM2KCYQPTYU637SMVM/bundle.json","state":"https://pith.science/pith/OK2AI27BDM2KCYQPTYU637SMVM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OK2AI27BDM2KCYQPTYU637SMVM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:OK2AI27BDM2KCYQPTYU637SMVM","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":"15cd877f1af919d94d326752501a3f5e8a96e35ac8859cd5e9d7d26890ae36e6","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-03-28T02:49:28Z","title_canon_sha256":"3cf8da183b7f76ecc4794a29409d357c4a71828c0f40544d2b37103b6d19539b"},"schema_version":"1.0","source":{"id":"2303.15696","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.15696","created_at":"2026-07-05T06:34:30Z"},{"alias_kind":"arxiv_version","alias_value":"2303.15696v1","created_at":"2026-07-05T06:34:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.15696","created_at":"2026-07-05T06:34:30Z"},{"alias_kind":"pith_short_12","alias_value":"OK2AI27BDM2K","created_at":"2026-07-05T06:34:30Z"},{"alias_kind":"pith_short_16","alias_value":"OK2AI27BDM2KCYQP","created_at":"2026-07-05T06:34:30Z"},{"alias_kind":"pith_short_8","alias_value":"OK2AI27B","created_at":"2026-07-05T06:34:30Z"}],"graph_snapshots":[{"event_id":"sha256:5c59fb1d0a87232040f3259bb019e5a4b748898697ac563d7c430d70a332e578","target":"graph","created_at":"2026-07-05T06:34:30Z","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/2303.15696/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The collection of gravitational waves (GWs) that are either too weak or too numerous to be individually resolved is commonly referred to as the gravitational-wave background (GWB). A confident detection and model-driven characterization of such a signal will provide invaluable information about the evolution of the Universe and the population of GW sources within it. We present a new, user-friendly Python--based package for gravitational-wave data analysis to search for an isotropic GWB in ground--based interferometer data. We employ cross-correlation spectra of GW detector pairs to construct ","authors_text":"Adrian Macquet, Alba Romero-Rodrguez, Andrew Matas, Arianna I. Renzini, Colm Talbot, Derek Davis, Fabio Garufi, Federico De Lillo, Gregg Harry, Guo-Chin Liu, Haowen Zhong, Ioannis Michaloliakos, Irina Dvorkin, Jessica Lawrence, Joseph D. Romano, Kamiel Janssens, Katarina Martinovic, Kevin Turbang, Kiet Pham, Leo Tsukada, Luca D'Onofrio, Max Lalleman, Nick van Remortel, Patrick Meyers, Philip Charlton, Rosa Poggiani, Sanjit Mitra, Sharan Banagiri, Shivaraj Kandhasamy, Sukanta Bose, Sylvia Biscoveanu, Tania Regimbau, Thomas Callister, Vuk Mandic","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-03-28T02:49:28Z","title":"pygwb: Python-based library for gravitational-wave background searches"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.15696","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":"sha256:60be671ee499c009d951a9e6563b753017fb4acfe684ca5061d47447f02bdf90","target":"record","created_at":"2026-07-05T06:34:30Z","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":"15cd877f1af919d94d326752501a3f5e8a96e35ac8859cd5e9d7d26890ae36e6","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-03-28T02:49:28Z","title_canon_sha256":"3cf8da183b7f76ecc4794a29409d357c4a71828c0f40544d2b37103b6d19539b"},"schema_version":"1.0","source":{"id":"2303.15696","kind":"arxiv","version":1}},"canonical_sha256":"72b4046be11b34a1620f9e29edfe4cab391ee3412d93c8618fca7629b277627b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"72b4046be11b34a1620f9e29edfe4cab391ee3412d93c8618fca7629b277627b","first_computed_at":"2026-07-05T06:34:30.375255Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:34:30.375255Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"y4hTb9hI30jPP5O+MKDvK3WCbkUIH7Kde8Cjeluqkvbq/5jz3MtUXcWkL0hfc+N1wMhovXWxk1srhM4s/mxACw==","signature_status":"signed_v1","signed_at":"2026-07-05T06:34:30.375774Z","signed_message":"canonical_sha256_bytes"},"source_id":"2303.15696","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:60be671ee499c009d951a9e6563b753017fb4acfe684ca5061d47447f02bdf90","sha256:5c59fb1d0a87232040f3259bb019e5a4b748898697ac563d7c430d70a332e578"],"state_sha256":"90fa8f08ae14c81e15b9d84b8037904e3360940aeb0e2d5a7db2510507734aab"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OlKsVWDhYpGAAbsWkhj+TUiouw9PErXG0KVipta+NeFy+4Y2Pb2lS/iXfXlurvrC0oAsvOn/wRgS7gIyl18PDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T11:10:18.670261Z","bundle_sha256":"777c0b3e0abe3751cbc347315eaed1f06cacb24c3c523b67364c09fd76342310"}}