{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:V3UD6YXU4Y7LBEQS6THZXGYVMK","short_pith_number":"pith:V3UD6YXU","schema_version":"1.0","canonical_sha256":"aee83f62f4e63eb09212f4cf9b9b1562be7735e461e3dbb22b93eda88339e8cc","source":{"kind":"arxiv","id":"2308.01017","version":2},"attestation_state":"computed","paper":{"title":"Model-independent search for the quasinormal modes of gravitational wave echoes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Di Wu, Jing Ren, Niayesh Afshordi, Pengyuan Gao","submitted_at":"2023-08-02T08:57:08Z","abstract_excerpt":"Postmerger gravitational wave echoes provide a unique opportunity to probe the near-horizon structure of astrophysical black holes, which may be modified due to nonperturbative quantum gravity phenomena. However, since the waveform is subject to large theoretical uncertainties, it is necessary to develop search methods that are less reliant on specific models for detecting echoes from observational data. A promising strategy is to identify the characteristic quasinormal modes (QNMs) associated with echoes, {\\it in frequency space}, which complements existing searches of quasiperiodic pulses in"},"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":"2308.01017","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-08-02T08:57:08Z","cross_cats_sorted":[],"title_canon_sha256":"270cb27d691820f2aafc5933c757975b219510f18d48ea7881cc5f3fdc77d6e6","abstract_canon_sha256":"a3d78df4b4554887ad820de9ffd872f5981af35cb17896cd51bc44552802d8b5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:01:30.867802Z","signature_b64":"d+xUkKxlB7zoFh8jbSqMJotm2uwuHfgx422CWWbuVQnXVqOE8ewKTLPzfzZLHdorI0E22EjDd9XhKfNEUjCABw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aee83f62f4e63eb09212f4cf9b9b1562be7735e461e3dbb22b93eda88339e8cc","last_reissued_at":"2026-07-05T10:01:30.867421Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:01:30.867421Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Model-independent search for the quasinormal modes of gravitational wave echoes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Di Wu, Jing Ren, Niayesh Afshordi, Pengyuan Gao","submitted_at":"2023-08-02T08:57:08Z","abstract_excerpt":"Postmerger gravitational wave echoes provide a unique opportunity to probe the near-horizon structure of astrophysical black holes, which may be modified due to nonperturbative quantum gravity phenomena. However, since the waveform is subject to large theoretical uncertainties, it is necessary to develop search methods that are less reliant on specific models for detecting echoes from observational data. A promising strategy is to identify the characteristic quasinormal modes (QNMs) associated with echoes, {\\it in frequency space}, which complements existing searches of quasiperiodic pulses in"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2308.01017","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/2308.01017/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":"2308.01017","created_at":"2026-07-05T10:01:30.867476+00:00"},{"alias_kind":"arxiv_version","alias_value":"2308.01017v2","created_at":"2026-07-05T10:01:30.867476+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2308.01017","created_at":"2026-07-05T10:01:30.867476+00:00"},{"alias_kind":"pith_short_12","alias_value":"V3UD6YXU4Y7L","created_at":"2026-07-05T10:01:30.867476+00:00"},{"alias_kind":"pith_short_16","alias_value":"V3UD6YXU4Y7LBEQS","created_at":"2026-07-05T10:01:30.867476+00:00"},{"alias_kind":"pith_short_8","alias_value":"V3UD6YXU","created_at":"2026-07-05T10:01:30.867476+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/V3UD6YXU4Y7LBEQS6THZXGYVMK","json":"https://pith.science/pith/V3UD6YXU4Y7LBEQS6THZXGYVMK.json","graph_json":"https://pith.science/api/pith-number/V3UD6YXU4Y7LBEQS6THZXGYVMK/graph.json","events_json":"https://pith.science/api/pith-number/V3UD6YXU4Y7LBEQS6THZXGYVMK/events.json","paper":"https://pith.science/paper/V3UD6YXU"},"agent_actions":{"view_html":"https://pith.science/pith/V3UD6YXU4Y7LBEQS6THZXGYVMK","download_json":"https://pith.science/pith/V3UD6YXU4Y7LBEQS6THZXGYVMK.json","view_paper":"https://pith.science/paper/V3UD6YXU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2308.01017&json=true","fetch_graph":"https://pith.science/api/pith-number/V3UD6YXU4Y7LBEQS6THZXGYVMK/graph.json","fetch_events":"https://pith.science/api/pith-number/V3UD6YXU4Y7LBEQS6THZXGYVMK/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/V3UD6YXU4Y7LBEQS6THZXGYVMK/action/timestamp_anchor","attest_storage":"https://pith.science/pith/V3UD6YXU4Y7LBEQS6THZXGYVMK/action/storage_attestation","attest_author":"https://pith.science/pith/V3UD6YXU4Y7LBEQS6THZXGYVMK/action/author_attestation","sign_citation":"https://pith.science/pith/V3UD6YXU4Y7LBEQS6THZXGYVMK/action/citation_signature","submit_replication":"https://pith.science/pith/V3UD6YXU4Y7LBEQS6THZXGYVMK/action/replication_record"}},"created_at":"2026-07-05T10:01:30.867476+00:00","updated_at":"2026-07-05T10:01:30.867476+00:00"}