{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.topic/1","content_sha256":"596685e477b188cac47612eaabf01ec38967468e3b72d72b28d9f3ecf718f227","created":"2026-10-03T07:17:51Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":[],"salt":"c9225f25e52f79e4f554eed01bacade5720e86d333692c816a5ef86388b83ecc","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"topic"},"content":{"external_id":"grav.strong-field-tests","field":"grav","n":"1","review_cite":"E. Berti, V. Cardoso, G. Carullo et al., Black hole spectroscopy: from theory to experiment, Class. Quantum Grav. 43, 123001, 2026","review_link":"https://arxiv.org/abs/2505.23895","review_verified":"true","summary":"Gravitational waves from merging black holes and radio images of black holes test Einstein's theory where gravity is strongest. A key target is the ringing of a newly formed black hole, whose tones should depend only on its mass and spin.","title":"Strong-field tests of general relativity with black holes","topic_ref":null,"why":"These are the only direct probes of spacetime near horizons, where deviations from general relativity or quantum-gravity structure would appear first."},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"bc4b175d5b29c50050e1c97990c34784beaa0b526c07994422c4f929f682a68b","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"f4e426435343ebe801d720e69b186f125116dbc5b078aacaea94b802e4d6192a","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"NedOpB4ofiZgd75DzFId48760Y3QADFq8c1FlyrMiA9B3ZKwUjvy6QFXvlkssQiYhInHbZlewHbtGlvVPwCzDA"},"schema":"pubphys.envelope/1"},"record_hash":"bc4b175d5b29c50050e1c97990c34784beaa0b526c07994422c4f929f682a68b","leaf_index":235}