{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"3dccaffd2aee9b6541cb57306f115082c9a1be068caa17d3505ae9bd606d5b4f","created":"2026-10-15T23:43:22Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["05e4da055d00ca967f564973bc20b85087c81e5ba850b0661431ff996a221066","ce59fb6cd812fc05906d0c60a71c75ea22bc686bcf38e7c3ef7010834d98ee7b"],"salt":"5d862532b11fa992cb54d23d686982cd9a372e6470005b8835e3fd6e8a8ad838","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":"2","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 $1.2 \\times 10^{19}$ GeV ($2 \\times 10^{16}$ 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":"05e4da055d00ca967f564973bc20b85087c81e5ba850b0661431ff996a221066","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":null},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"72ae1bd5d4b998235673dc7ea143e03c1d59497c9e43e5d0e77ab4e67fc8809b","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"a611a0eb9be55fa4b0fb04894ed3a1a484e630fbc7eb8f8210253d18ed4c4899","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"x5dAKHlTIUXzUeaS7XVKEit5RSKzPWiRGQB6zqFDAN_t8LRirDlMEUYWn8pvft4o7Q4eYHLlCHJeHy2eUOIYAw"},"schema":"pubphys.envelope/1"},"record_hash":"72ae1bd5d4b998235673dc7ea143e03c1d59497c9e43e5d0e77ab4e67fc8809b","leaf_index":3314}