{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"0076d4a1b2001b70fa570662d6d6d760b4fca06949c70e9ff73e3272c46a2035","created":"2026-10-03T07:18:04Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["5475cf5dc5b1a72283d26dc95dc6e00d7ea4e00096a7c6492e409a1816eeb011"],"salt":"905af98f91033a037b162d7b812d4da611d508bd3928e85fa160bee396b778d6","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"identification","assisted_by":[],"external_id":"grav.uv-completion.which-completion","kind":"phenomenon","literature_status":"open","n":"1","parents":[],"plain":"String theory, asymptotic safety, loop quantum gravity and others each propose what happens at the shortest distances. None has been confirmed, and most make no prediction testable at reachable energies.","posed_since":"","precise":"For a named candidate completion of $3+1$ gravity coupled to the Standard Model (string theory, asymptotic safety, loop quantum gravity, causal dynamical triangulations, Horava gravity or another), derive a low-energy observable, at energies far below $E_P=\\sqrt{\\hbar c^5/G}$, approximately 1.2 x 10^19 GeV (2 x 10^16 erg), whose predicted deviation from general relativity plus the Standard Model is computed with stated uncertainty and is within reach of current or planned measurements. An answer is a falsifiable prediction with a stated magnitude that distinguishes the candidate from the alternatives.","problem_ref":null,"references":"","settled_by":"An observation that confirms a prediction unique to one candidate completion.","status_note":"","title":"Which theory completes general relativity at the Planck scale?","topic_ref":"c4c16a23d26fb15802115d6c08196860939989b3b47923782e43e698e37ba8b7"},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"05e4da055d00ca967f564973bc20b85087c81e5ba850b0661431ff996a221066","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"997a40efc56edd576f103d257f74274f13f3bf7747d79a35d9f78690e14a5f20","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"JWtfcq2ieIG_bbJoXGfjLQOTk4DuvheU_WQqE01lD7C7wA-k6BW2hRfynTJ597KKLWaWSSGZrGdnLh-wdjoyCg"},"schema":"pubphys.envelope/1"},"record_hash":"05e4da055d00ca967f564973bc20b85087c81e5ba850b0661431ff996a221066","leaf_index":1515}