{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:ZV3ONXGD2CUUJF2FJZW46VLCTJ","short_pith_number":"pith:ZV3ONXGD","schema_version":"1.0","canonical_sha256":"cd76e6dcc3d0a94497454e6dcf55629a5594c15236a7eb9189e77216636d9826","source":{"kind":"arxiv","id":"2306.11142","version":3},"attestation_state":"computed","paper":{"title":"Nonlinear ringdown at the black hole horizon","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Ariadna Ribes Metidieri, Badri Krishnan, B\\'eatrice Bonga, Daniel Pook-Kolb, Eric Poisson, Erik Schnetter, Huan Yang, Neev Khera, Xisco Jim\\'enez Forteza","submitted_at":"2023-06-19T19:56:33Z","abstract_excerpt":"The gravitational waves emitted by a perturbed black hole ringing down are well described by damped sinusoids, whose frequencies are those of quasinormal modes. Typically, first-order black hole perturbation theory is used to calculate these frequencies. Recently, it was shown that second-order effects are necessary in binary black hole merger simulations to model the gravitational-wave signal observed by a distant observer. Here, we show that the horizon of a newly formed black hole after the head-on collision of two black holes also shows evidence of non-linear modes. Specifically, we identi"},"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":"2306.11142","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-06-19T19:56:33Z","cross_cats_sorted":[],"title_canon_sha256":"fb89a027ad295b26cb0a2698b4ca9359018cbebd14915e376fa74a80d3e3270e","abstract_canon_sha256":"24cb8f0e05e5a5e8328c4a3535fda0a7965ea84c7d08d8fccab3756e128c7da2"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:35:19.437143Z","signature_b64":"we5VhZuJ/+GA/qPaI31OmKQv4NwKjgrBZ1Lcrb4WI/Y0qtup/mUfkabYp2NHQI3Hx9Brs1FLGcpb3WzKY098Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cd76e6dcc3d0a94497454e6dcf55629a5594c15236a7eb9189e77216636d9826","last_reissued_at":"2026-07-05T07:35:19.436670Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:35:19.436670Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Nonlinear ringdown at the black hole horizon","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Ariadna Ribes Metidieri, Badri Krishnan, B\\'eatrice Bonga, Daniel Pook-Kolb, Eric Poisson, Erik Schnetter, Huan Yang, Neev Khera, Xisco Jim\\'enez Forteza","submitted_at":"2023-06-19T19:56:33Z","abstract_excerpt":"The gravitational waves emitted by a perturbed black hole ringing down are well described by damped sinusoids, whose frequencies are those of quasinormal modes. Typically, first-order black hole perturbation theory is used to calculate these frequencies. Recently, it was shown that second-order effects are necessary in binary black hole merger simulations to model the gravitational-wave signal observed by a distant observer. Here, we show that the horizon of a newly formed black hole after the head-on collision of two black holes also shows evidence of non-linear modes. Specifically, we identi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2306.11142","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/2306.11142/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":"2306.11142","created_at":"2026-07-05T07:35:19.436728+00:00"},{"alias_kind":"arxiv_version","alias_value":"2306.11142v3","created_at":"2026-07-05T07:35:19.436728+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2306.11142","created_at":"2026-07-05T07:35:19.436728+00:00"},{"alias_kind":"pith_short_12","alias_value":"ZV3ONXGD2CUU","created_at":"2026-07-05T07:35:19.436728+00:00"},{"alias_kind":"pith_short_16","alias_value":"ZV3ONXGD2CUUJF2F","created_at":"2026-07-05T07:35:19.436728+00:00"},{"alias_kind":"pith_short_8","alias_value":"ZV3ONXGD","created_at":"2026-07-05T07:35:19.436728+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":6,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.23804","citing_title":"Black Hole Ringdown Nonlinearities in the Large-D Limit","ref_index":24,"is_internal_anchor":false},{"citing_arxiv_id":"2605.10874","citing_title":"Cusp Formation in Merging Black Hole Horizons","ref_index":48,"is_internal_anchor":false},{"citing_arxiv_id":"2605.03576","citing_title":"Ringdown Analysis of GW250114 with Orthonormal Modes","ref_index":24,"is_internal_anchor":false},{"citing_arxiv_id":"2605.10874","citing_title":"Cusp Formation in Merging Black Hole Horizons","ref_index":48,"is_internal_anchor":false},{"citing_arxiv_id":"2604.00170","citing_title":"Thermodynamics of dynamical black holes beyond perturbation theory","ref_index":49,"is_internal_anchor":false},{"citing_arxiv_id":"2604.08680","citing_title":"Prompt Response from Plunging Sources in Schwarzschild Spacetime","ref_index":27,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/ZV3ONXGD2CUUJF2FJZW46VLCTJ","json":"https://pith.science/pith/ZV3ONXGD2CUUJF2FJZW46VLCTJ.json","graph_json":"https://pith.science/api/pith-number/ZV3ONXGD2CUUJF2FJZW46VLCTJ/graph.json","events_json":"https://pith.science/api/pith-number/ZV3ONXGD2CUUJF2FJZW46VLCTJ/events.json","paper":"https://pith.science/paper/ZV3ONXGD"},"agent_actions":{"view_html":"https://pith.science/pith/ZV3ONXGD2CUUJF2FJZW46VLCTJ","download_json":"https://pith.science/pith/ZV3ONXGD2CUUJF2FJZW46VLCTJ.json","view_paper":"https://pith.science/paper/ZV3ONXGD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2306.11142&json=true","fetch_graph":"https://pith.science/api/pith-number/ZV3ONXGD2CUUJF2FJZW46VLCTJ/graph.json","fetch_events":"https://pith.science/api/pith-number/ZV3ONXGD2CUUJF2FJZW46VLCTJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ZV3ONXGD2CUUJF2FJZW46VLCTJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ZV3ONXGD2CUUJF2FJZW46VLCTJ/action/storage_attestation","attest_author":"https://pith.science/pith/ZV3ONXGD2CUUJF2FJZW46VLCTJ/action/author_attestation","sign_citation":"https://pith.science/pith/ZV3ONXGD2CUUJF2FJZW46VLCTJ/action/citation_signature","submit_replication":"https://pith.science/pith/ZV3ONXGD2CUUJF2FJZW46VLCTJ/action/replication_record"}},"created_at":"2026-07-05T07:35:19.436728+00:00","updated_at":"2026-07-05T07:35:19.436728+00:00"}