{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2004:WOMCAWDO2GFIB66DGRJZK5RUHW","short_pith_number":"pith:WOMCAWDO","schema_version":"1.0","canonical_sha256":"b39820586ed18a80fbc334539576343d889fab23aa9d062e3e47b9faae2c2ff1","source":{"kind":"arxiv","id":"gr-qc/0403053","version":4},"attestation_state":"computed","paper":{"title":"Lorentz invariance and quantum gravity: an additional fine-tuning problem?","license":"","headline":"","cross_cats":["hep-ph"],"primary_cat":"gr-qc","authors_text":"Alejandro Perez, Daniel Sudarsky, H\\'ector Vucetich, John Collins, Luis Urrutia","submitted_at":"2004-03-12T23:20:31Z","abstract_excerpt":"Trying to combine standard quantum field theories with gravity leads to a breakdown of the usual structure of space-time at around the Planck length, 1.6*10^{-35} m, with possible violations of Lorentz invariance. Calculations of preferred-frame effects in quantum gravity have further motivated high precision searches for Lorentz violation. Here, we explain that combining known elementary particle interactions with a Planck-scale preferred frame gives rise to Lorentz violation at the percent level, some 20 orders of magnitude higher than earlier estimates, unless the bare parameters of the the"},"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":"gr-qc/0403053","kind":"arxiv","version":4},"metadata":{"license":"","primary_cat":"gr-qc","submitted_at":"2004-03-12T23:20:31Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"f14af96d0b49a68df1bdea0cf15d4e1731ea1a277430bb8080b32b6bc5c2718a","abstract_canon_sha256":"832b7d01f13846d20ac9a057f287b10b8425f7d205428552473d2edd918972e1"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:25:19.480774Z","signature_b64":"UHUIXal+oiXE4sUACDbieh+1IsU3fV3xS9ZzEmke3+NSGUFDuNgjhw2F36O1Aq27kRxmAm18shd9275fLyqdCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b39820586ed18a80fbc334539576343d889fab23aa9d062e3e47b9faae2c2ff1","last_reissued_at":"2026-07-04T17:25:19.480283Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:25:19.480283Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Lorentz invariance and quantum gravity: an additional fine-tuning problem?","license":"","headline":"","cross_cats":["hep-ph"],"primary_cat":"gr-qc","authors_text":"Alejandro Perez, Daniel Sudarsky, H\\'ector Vucetich, John Collins, Luis Urrutia","submitted_at":"2004-03-12T23:20:31Z","abstract_excerpt":"Trying to combine standard quantum field theories with gravity leads to a breakdown of the usual structure of space-time at around the Planck length, 1.6*10^{-35} m, with possible violations of Lorentz invariance. Calculations of preferred-frame effects in quantum gravity have further motivated high precision searches for Lorentz violation. Here, we explain that combining known elementary particle interactions with a Planck-scale preferred frame gives rise to Lorentz violation at the percent level, some 20 orders of magnitude higher than earlier estimates, unless the bare parameters of the the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/0403053","kind":"arxiv","version":4},"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/gr-qc/0403053/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":"gr-qc/0403053","created_at":"2026-07-04T17:25:19.480354+00:00"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/0403053v4","created_at":"2026-07-04T17:25:19.480354+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/0403053","created_at":"2026-07-04T17:25:19.480354+00:00"},{"alias_kind":"pith_short_12","alias_value":"WOMCAWDO2GFI","created_at":"2026-07-04T17:25:19.480354+00:00"},{"alias_kind":"pith_short_16","alias_value":"WOMCAWDO2GFIB66D","created_at":"2026-07-04T17:25:19.480354+00:00"},{"alias_kind":"pith_short_8","alias_value":"WOMCAWDO","created_at":"2026-07-04T17:25:19.480354+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/WOMCAWDO2GFIB66DGRJZK5RUHW","json":"https://pith.science/pith/WOMCAWDO2GFIB66DGRJZK5RUHW.json","graph_json":"https://pith.science/api/pith-number/WOMCAWDO2GFIB66DGRJZK5RUHW/graph.json","events_json":"https://pith.science/api/pith-number/WOMCAWDO2GFIB66DGRJZK5RUHW/events.json","paper":"https://pith.science/paper/WOMCAWDO"},"agent_actions":{"view_html":"https://pith.science/pith/WOMCAWDO2GFIB66DGRJZK5RUHW","download_json":"https://pith.science/pith/WOMCAWDO2GFIB66DGRJZK5RUHW.json","view_paper":"https://pith.science/paper/WOMCAWDO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=gr-qc/0403053&json=true","fetch_graph":"https://pith.science/api/pith-number/WOMCAWDO2GFIB66DGRJZK5RUHW/graph.json","fetch_events":"https://pith.science/api/pith-number/WOMCAWDO2GFIB66DGRJZK5RUHW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/WOMCAWDO2GFIB66DGRJZK5RUHW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/WOMCAWDO2GFIB66DGRJZK5RUHW/action/storage_attestation","attest_author":"https://pith.science/pith/WOMCAWDO2GFIB66DGRJZK5RUHW/action/author_attestation","sign_citation":"https://pith.science/pith/WOMCAWDO2GFIB66DGRJZK5RUHW/action/citation_signature","submit_replication":"https://pith.science/pith/WOMCAWDO2GFIB66DGRJZK5RUHW/action/replication_record"}},"created_at":"2026-07-04T17:25:19.480354+00:00","updated_at":"2026-07-04T17:25:19.480354+00:00"}