{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:L2UCAL6HOT24CT2U3NLM4LDZA7","short_pith_number":"pith:L2UCAL6H","schema_version":"1.0","canonical_sha256":"5ea8202fc774f5c14f54db56ce2c7907c29195ccfa98137516a177d5a9f7d3a2","source":{"kind":"arxiv","id":"1906.00838","version":3},"attestation_state":"computed","paper":{"title":"Searching for black hole echoes from the LIGO-Virgo Catalog GWTC-1","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Hideyuki Tagoshi, Hiroyuki Nakano, Nami Uchikata, Norichika Sago, Takahiro Tanaka, Tatsuya Narikawa","submitted_at":"2019-06-03T14:35:38Z","abstract_excerpt":"We have examined gravitational wave echo signals for nine binary black hole merger events observed by Advanced LIGO and Virgo during the first and second observation runs. To construct an echo template, we consider Kerr spacetime, where the event horizon is replaced by a reflective membrane. We use frequency-dependent reflection rate at the angular potential barrier, which is fitted to the numerical data obtained by solving Teukolsky equations. This reflection rate gives a frequency-dependent transmission rate that is suppressed at lower frequencies in the template. We also take into account t"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1906.00838","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-06-03T14:35:38Z","cross_cats_sorted":[],"title_canon_sha256":"55862dea815f31ff9015a0088d155e5b11d0496b9cacdbd98b6b38b4ef1440d0","abstract_canon_sha256":"e20c37256c9877446651d46951e8ff2bc35511006dd40f98a928980a47231760"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:08:59.689959Z","signature_b64":"HN3RheB5atjH+uIvUuEe5AhPopm5cfRXuM863Bqqxis0vG5iT1VMPmkwrEMgg9Wr7J/oMac3Hym6yMBtAfUuCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5ea8202fc774f5c14f54db56ce2c7907c29195ccfa98137516a177d5a9f7d3a2","last_reissued_at":"2026-07-05T00:08:59.689483Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:08:59.689483Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Searching for black hole echoes from the LIGO-Virgo Catalog GWTC-1","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Hideyuki Tagoshi, Hiroyuki Nakano, Nami Uchikata, Norichika Sago, Takahiro Tanaka, Tatsuya Narikawa","submitted_at":"2019-06-03T14:35:38Z","abstract_excerpt":"We have examined gravitational wave echo signals for nine binary black hole merger events observed by Advanced LIGO and Virgo during the first and second observation runs. To construct an echo template, we consider Kerr spacetime, where the event horizon is replaced by a reflective membrane. We use frequency-dependent reflection rate at the angular potential barrier, which is fitted to the numerical data obtained by solving Teukolsky equations. This reflection rate gives a frequency-dependent transmission rate that is suppressed at lower frequencies in the template. We also take into account t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.00838","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/1906.00838/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1906.00838","created_at":"2026-07-05T00:08:59.689544+00:00"},{"alias_kind":"arxiv_version","alias_value":"1906.00838v3","created_at":"2026-07-05T00:08:59.689544+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.00838","created_at":"2026-07-05T00:08:59.689544+00:00"},{"alias_kind":"pith_short_12","alias_value":"L2UCAL6HOT24","created_at":"2026-07-05T00:08:59.689544+00:00"},{"alias_kind":"pith_short_16","alias_value":"L2UCAL6HOT24CT2U","created_at":"2026-07-05T00:08:59.689544+00:00"},{"alias_kind":"pith_short_8","alias_value":"L2UCAL6H","created_at":"2026-07-05T00:08:59.689544+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":6,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.31350","citing_title":"Compactness Inference in Gravitational-Wave Mergers with PhenomDECO: Catalog Benchmarks and Robustness Diagnostics","ref_index":56,"is_internal_anchor":false},{"citing_arxiv_id":"2607.00559","citing_title":"Relaxation without ringdown for a compact object in modified gravity","ref_index":14,"is_internal_anchor":false},{"citing_arxiv_id":"2606.31350","citing_title":"Compactness Inference in Gravitational-Wave Mergers with PhenomDECO: Catalog Benchmarks and Robustness Diagnostics","ref_index":56,"is_internal_anchor":false},{"citing_arxiv_id":"2303.15923","citing_title":"Science with the Einstein Telescope: a comparison of different designs","ref_index":199,"is_internal_anchor":false},{"citing_arxiv_id":"2010.14529","citing_title":"Tests of General Relativity with Binary Black Holes from the second LIGO-Virgo Gravitational-Wave Transient Catalog","ref_index":265,"is_internal_anchor":false},{"citing_arxiv_id":"2112.06861","citing_title":"Tests of General Relativity with GWTC-3","ref_index":76,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/L2UCAL6HOT24CT2U3NLM4LDZA7","json":"https://pith.science/pith/L2UCAL6HOT24CT2U3NLM4LDZA7.json","graph_json":"https://pith.science/api/pith-number/L2UCAL6HOT24CT2U3NLM4LDZA7/graph.json","events_json":"https://pith.science/api/pith-number/L2UCAL6HOT24CT2U3NLM4LDZA7/events.json","paper":"https://pith.science/paper/L2UCAL6H"},"agent_actions":{"view_html":"https://pith.science/pith/L2UCAL6HOT24CT2U3NLM4LDZA7","download_json":"https://pith.science/pith/L2UCAL6HOT24CT2U3NLM4LDZA7.json","view_paper":"https://pith.science/paper/L2UCAL6H","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1906.00838&json=true","fetch_graph":"https://pith.science/api/pith-number/L2UCAL6HOT24CT2U3NLM4LDZA7/graph.json","fetch_events":"https://pith.science/api/pith-number/L2UCAL6HOT24CT2U3NLM4LDZA7/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/L2UCAL6HOT24CT2U3NLM4LDZA7/action/timestamp_anchor","attest_storage":"https://pith.science/pith/L2UCAL6HOT24CT2U3NLM4LDZA7/action/storage_attestation","attest_author":"https://pith.science/pith/L2UCAL6HOT24CT2U3NLM4LDZA7/action/author_attestation","sign_citation":"https://pith.science/pith/L2UCAL6HOT24CT2U3NLM4LDZA7/action/citation_signature","submit_replication":"https://pith.science/pith/L2UCAL6HOT24CT2U3NLM4LDZA7/action/replication_record"}},"created_at":"2026-07-05T00:08:59.689544+00:00","updated_at":"2026-07-05T00:08:59.689544+00:00"}