{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:J3R2EWGAXEFYDYK73CHYK2RPHJ","short_pith_number":"pith:J3R2EWGA","canonical_record":{"source":{"id":"2105.06360","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-05-13T15:39:59Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"42e568ed68a1eea39f79a72e516895596f21f4801cc632c40eb396f11ee7b21f","abstract_canon_sha256":"5e6969ef2e856f78b8b5859d140040ac1f91292fdeac3e56543d243dccde2dec"},"schema_version":"1.0"},"canonical_sha256":"4ee3a258c0b90b81e15fd88f856a2f3a7e29e2776ab656b9c8b47b38f622d9be","source":{"kind":"arxiv","id":"2105.06360","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.06360","created_at":"2026-07-05T03:49:10Z"},{"alias_kind":"arxiv_version","alias_value":"2105.06360v3","created_at":"2026-07-05T03:49:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.06360","created_at":"2026-07-05T03:49:10Z"},{"alias_kind":"pith_short_12","alias_value":"J3R2EWGAXEFY","created_at":"2026-07-05T03:49:10Z"},{"alias_kind":"pith_short_16","alias_value":"J3R2EWGAXEFYDYK7","created_at":"2026-07-05T03:49:10Z"},{"alias_kind":"pith_short_8","alias_value":"J3R2EWGA","created_at":"2026-07-05T03:49:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:J3R2EWGAXEFYDYK73CHYK2RPHJ","target":"record","payload":{"canonical_record":{"source":{"id":"2105.06360","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-05-13T15:39:59Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"42e568ed68a1eea39f79a72e516895596f21f4801cc632c40eb396f11ee7b21f","abstract_canon_sha256":"5e6969ef2e856f78b8b5859d140040ac1f91292fdeac3e56543d243dccde2dec"},"schema_version":"1.0"},"canonical_sha256":"4ee3a258c0b90b81e15fd88f856a2f3a7e29e2776ab656b9c8b47b38f622d9be","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:49:10.855728Z","signature_b64":"W+5mM4YQdxtmJrNt2Fw23KDvS+o88gM/HsFX/orcCAnMxRHfpDSeYwtZf/JN+VxCw9h+EoJu+PpW22+7fnYxAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4ee3a258c0b90b81e15fd88f856a2f3a7e29e2776ab656b9c8b47b38f622d9be","last_reissued_at":"2026-07-05T03:49:10.855201Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:49:10.855201Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2105.06360","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T03:49:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oioGmzyi91YHXwrqNhVH7e7tMhAJdXK2mIj2EM5ZFpjrmy1Nzb7rpNphBdcaavDzkZt9pOtNTRBPdKzy0/a+Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T14:46:33.649498Z"},"content_sha256":"b9129fbac799793b57fb5b929d68558c31f563c8f22df873991dfb3635b41c15","schema_version":"1.0","event_id":"sha256:b9129fbac799793b57fb5b929d68558c31f563c8f22df873991dfb3635b41c15"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:J3R2EWGAXEFYDYK73CHYK2RPHJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A detailed analysis of GW190521 with phenomenological waveform models","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"gr-qc","authors_text":"Ajit Kumar Mehta, Alessandra Buonanno, Antoni Ramos-Buades, Cecilio Garc\\'ia-Quir\\'os, David Keitel, H\\'ector Estell\\'es, Maite Mateu-Lucena, Maria de Lluc Planas, Marta Colleoni, Sascha Husa, Serguei Ossokine","submitted_at":"2021-05-13T15:39:59Z","abstract_excerpt":"In this paper we present an extensive analysis of the GW190521 gravitational wave event with the current (fourth) generation of phenomenological waveform models for binary black hole coalescences. GW190521 stands out from other events since only a few wave cycles are observable. This leads to a number of challenges, one being that such short signals are prone to not resolve approximate waveform degeneracies, which may result in multi-modal posterior distributions. The family of waveform models we use includes a new fast time-domain model IMRPhenomTPHM, which allows us extensive tests of differ"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.06360","kind":"arxiv","version":3},"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/2105.06360/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":"2026-07-05T03:49:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ENsGXXJbWiby0YP1aUcl1k40wYfhXQuXfBhpDMkpjhn1z9V7QKi8zCa5WDfe6rKzxk0KlcdbIg3//eJJJ1zaCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T14:46:33.650402Z"},"content_sha256":"cd069d643aeb5078437462c391c4fbd6c1c047abb95391831a18e5f2cc216d24","schema_version":"1.0","event_id":"sha256:cd069d643aeb5078437462c391c4fbd6c1c047abb95391831a18e5f2cc216d24"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/J3R2EWGAXEFYDYK73CHYK2RPHJ/bundle.json","state_url":"https://pith.science/pith/J3R2EWGAXEFYDYK73CHYK2RPHJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/J3R2EWGAXEFYDYK73CHYK2RPHJ/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":"2026-08-03T14:46:33Z","links":{"resolver":"https://pith.science/pith/J3R2EWGAXEFYDYK73CHYK2RPHJ","bundle":"https://pith.science/pith/J3R2EWGAXEFYDYK73CHYK2RPHJ/bundle.json","state":"https://pith.science/pith/J3R2EWGAXEFYDYK73CHYK2RPHJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/J3R2EWGAXEFYDYK73CHYK2RPHJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:J3R2EWGAXEFYDYK73CHYK2RPHJ","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":"5e6969ef2e856f78b8b5859d140040ac1f91292fdeac3e56543d243dccde2dec","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-05-13T15:39:59Z","title_canon_sha256":"42e568ed68a1eea39f79a72e516895596f21f4801cc632c40eb396f11ee7b21f"},"schema_version":"1.0","source":{"id":"2105.06360","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.06360","created_at":"2026-07-05T03:49:10Z"},{"alias_kind":"arxiv_version","alias_value":"2105.06360v3","created_at":"2026-07-05T03:49:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.06360","created_at":"2026-07-05T03:49:10Z"},{"alias_kind":"pith_short_12","alias_value":"J3R2EWGAXEFY","created_at":"2026-07-05T03:49:10Z"},{"alias_kind":"pith_short_16","alias_value":"J3R2EWGAXEFYDYK7","created_at":"2026-07-05T03:49:10Z"},{"alias_kind":"pith_short_8","alias_value":"J3R2EWGA","created_at":"2026-07-05T03:49:10Z"}],"graph_snapshots":[{"event_id":"sha256:cd069d643aeb5078437462c391c4fbd6c1c047abb95391831a18e5f2cc216d24","target":"graph","created_at":"2026-07-05T03:49:10Z","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/2105.06360/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this paper we present an extensive analysis of the GW190521 gravitational wave event with the current (fourth) generation of phenomenological waveform models for binary black hole coalescences. GW190521 stands out from other events since only a few wave cycles are observable. This leads to a number of challenges, one being that such short signals are prone to not resolve approximate waveform degeneracies, which may result in multi-modal posterior distributions. The family of waveform models we use includes a new fast time-domain model IMRPhenomTPHM, which allows us extensive tests of differ","authors_text":"Ajit Kumar Mehta, Alessandra Buonanno, Antoni Ramos-Buades, Cecilio Garc\\'ia-Quir\\'os, David Keitel, H\\'ector Estell\\'es, Maite Mateu-Lucena, Maria de Lluc Planas, Marta Colleoni, Sascha Husa, Serguei Ossokine","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-05-13T15:39:59Z","title":"A detailed analysis of GW190521 with phenomenological waveform models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.06360","kind":"arxiv","version":3},"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:b9129fbac799793b57fb5b929d68558c31f563c8f22df873991dfb3635b41c15","target":"record","created_at":"2026-07-05T03:49:10Z","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":"5e6969ef2e856f78b8b5859d140040ac1f91292fdeac3e56543d243dccde2dec","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-05-13T15:39:59Z","title_canon_sha256":"42e568ed68a1eea39f79a72e516895596f21f4801cc632c40eb396f11ee7b21f"},"schema_version":"1.0","source":{"id":"2105.06360","kind":"arxiv","version":3}},"canonical_sha256":"4ee3a258c0b90b81e15fd88f856a2f3a7e29e2776ab656b9c8b47b38f622d9be","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4ee3a258c0b90b81e15fd88f856a2f3a7e29e2776ab656b9c8b47b38f622d9be","first_computed_at":"2026-07-05T03:49:10.855201Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:49:10.855201Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"W+5mM4YQdxtmJrNt2Fw23KDvS+o88gM/HsFX/orcCAnMxRHfpDSeYwtZf/JN+VxCw9h+EoJu+PpW22+7fnYxAg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:49:10.855728Z","signed_message":"canonical_sha256_bytes"},"source_id":"2105.06360","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b9129fbac799793b57fb5b929d68558c31f563c8f22df873991dfb3635b41c15","sha256:cd069d643aeb5078437462c391c4fbd6c1c047abb95391831a18e5f2cc216d24"],"state_sha256":"1fa832015e989ecd1d08c423953a5e467bccdc1d5392f144dd2041683f65cf3b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z0X/DcGYSukoolVT03eK1WSfF2WJ7w5sqlRX/UibdYzHiqbghcJvKulHSDY95/oEabzzsyfPPhGOaHIdjuI2Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T14:46:33.656471Z","bundle_sha256":"52103cd26144f5d99c3d14e001cc150c70e175fa2d952bde22294ba9984e5a78"}}