{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.topic/1","content_sha256":"58eacbe8b9858897a48d06c5dbc4693a7630d1034f922b29f701990d918efc80","created":"2026-10-03T07:17:51Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":[],"salt":"312edcc2792deb8a740c8dd911fcd4eb2d9c95175a5b6b193e34ab4786a2f892","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"topic"},"content":{"external_id":"grav.modified-gravity","field":"grav","n":"1","review_cite":"E. Berti et al., Testing general relativity with present and future astrophysical observations, Class. Quantum Grav. 32, 243001, 2015","review_link":"https://arxiv.org/abs/1501.07274","review_verified":"true","summary":"Many extensions of Einstein's theory add new fields or extra curvature terms. They must pass all precise tests so far, which already exclude many, yet could still differ near black holes and in mergers.","title":"Modified gravity theories in the strong-field regime","topic_ref":null,"why":"Consistent alternative theories define what gravitational-wave and black hole observations actually test."},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"a8731b8afdb4bf1a21e7e744aafe4b63c17c04b813b33bba0ec00aefcc00500a","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"3d3e9b4f39c3f44a39f3e88a227ec1a4f41ce1d506429f370cd276f089499e00","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"0dZ5DaAQOdFZkKH0w6fgyR01NUgW3J48un512b8Tv15Nq85l7BdssX1CasqgOLuGt-gI6xm_olFY8ZO9ZZnfAA"},"schema":"pubphys.envelope/1"},"record_hash":"a8731b8afdb4bf1a21e7e744aafe4b63c17c04b813b33bba0ec00aefcc00500a","leaf_index":231}