{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:SHAHADS4LONWVCSNL2X5DYZY62","short_pith_number":"pith:SHAHADS4","schema_version":"1.0","canonical_sha256":"91c0700e5c5b9b6a8a4d5eafd1e338f69967d6796f7cb5a2396f1529ba053804","source":{"kind":"arxiv","id":"1005.5230","version":2},"attestation_state":"computed","paper":{"title":"Limits on light-speed anisotropies from Compton scattering of high-energy electrons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph","physics.atom-ph"],"primary_cat":"hep-ex","authors_text":"A. D'Angelo, A. Fantini, A. Giusa, A. Kashin, A. Lapik, A. Lleres, A. Margarian, A. Turinge, B. Girolami, C. Perrin, C. Randieri, C. Schaerf, D. Franco, D. Moricciani, D. Rebreyend, F. Ghio, F. Mammoliti, G. Gervino, G. Giardina, G. Mandaglio, G. Russo, J.-P. Bocquet, L. Casano, M. Beretta, M.C. Sutera, M.L. Sperduto, M. Manganaro, N. Rudnev, P. Levi Sandri, R. Di Salvo, R. Lehnert, R. Messi, S. Knyazyan, S. Mehrabyan, V. Bellini, V.G. Gurzadyan, V. Nedorezov, V. Vegna","submitted_at":"2010-05-28T07:41:34Z","abstract_excerpt":"The possibility of anisotropies in the speed of light relative to the limiting speed of electrons is considered. The absence of sidereal variations in the energy of Compton-edge photons at the ESRF's GRAAL facility constrains such anisotropies representing the first non-threshold collision-kinematics study of Lorentz violation. When interpreted within the minimal Standard-Model Extension, this result yields the two-sided limit of 1.6 x 10^{-14} at 95% confidence level on a combination of the parity-violating photon and electron coefficients kappa_{o+} and c. This new constraint provides an imp"},"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":"1005.5230","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2010-05-28T07:41:34Z","cross_cats_sorted":["hep-ph","physics.atom-ph"],"title_canon_sha256":"a63116aa6ed827ba8eb99c92710a384b8372171ca36887b675a1fb4ba5d9c801","abstract_canon_sha256":"e72245040c01cb77468c336c4d12f5a8ad1cdb023710aee57ed4d2ec297fdaf1"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:33:23.682686Z","signature_b64":"3ljH27gnNP7UmianqOpH7C4Dwc3oLjFQHLoOhp8d7cIbudVQ29QC3NgEkLRWSsxTr9Z8+BcDkcGzEBZCfYFVCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"91c0700e5c5b9b6a8a4d5eafd1e338f69967d6796f7cb5a2396f1529ba053804","last_reissued_at":"2026-05-18T02:33:23.682287Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:33:23.682287Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Limits on light-speed anisotropies from Compton scattering of high-energy electrons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph","physics.atom-ph"],"primary_cat":"hep-ex","authors_text":"A. D'Angelo, A. Fantini, A. Giusa, A. Kashin, A. Lapik, A. Lleres, A. Margarian, A. Turinge, B. Girolami, C. Perrin, C. Randieri, C. Schaerf, D. Franco, D. Moricciani, D. Rebreyend, F. Ghio, F. Mammoliti, G. Gervino, G. Giardina, G. Mandaglio, G. Russo, J.-P. Bocquet, L. Casano, M. Beretta, M.C. Sutera, M.L. Sperduto, M. Manganaro, N. Rudnev, P. Levi Sandri, R. Di Salvo, R. Lehnert, R. Messi, S. Knyazyan, S. Mehrabyan, V. Bellini, V.G. Gurzadyan, V. Nedorezov, V. Vegna","submitted_at":"2010-05-28T07:41:34Z","abstract_excerpt":"The possibility of anisotropies in the speed of light relative to the limiting speed of electrons is considered. The absence of sidereal variations in the energy of Compton-edge photons at the ESRF's GRAAL facility constrains such anisotropies representing the first non-threshold collision-kinematics study of Lorentz violation. When interpreted within the minimal Standard-Model Extension, this result yields the two-sided limit of 1.6 x 10^{-14} at 95% confidence level on a combination of the parity-violating photon and electron coefficients kappa_{o+} and c. This new constraint provides an imp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.5230","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"1005.5230","created_at":"2026-05-18T02:33:23.682352+00:00"},{"alias_kind":"arxiv_version","alias_value":"1005.5230v2","created_at":"2026-05-18T02:33:23.682352+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.5230","created_at":"2026-05-18T02:33:23.682352+00:00"},{"alias_kind":"pith_short_12","alias_value":"SHAHADS4LONW","created_at":"2026-05-18T12:26:13.927090+00:00"},{"alias_kind":"pith_short_16","alias_value":"SHAHADS4LONWVCSN","created_at":"2026-05-18T12:26:13.927090+00:00"},{"alias_kind":"pith_short_8","alias_value":"SHAHADS4","created_at":"2026-05-18T12:26:13.927090+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2604.17646","citing_title":"Crystallography, Lorentz violation, and the Standard-Model Extension","ref_index":130,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/SHAHADS4LONWVCSNL2X5DYZY62","json":"https://pith.science/pith/SHAHADS4LONWVCSNL2X5DYZY62.json","graph_json":"https://pith.science/api/pith-number/SHAHADS4LONWVCSNL2X5DYZY62/graph.json","events_json":"https://pith.science/api/pith-number/SHAHADS4LONWVCSNL2X5DYZY62/events.json","paper":"https://pith.science/paper/SHAHADS4"},"agent_actions":{"view_html":"https://pith.science/pith/SHAHADS4LONWVCSNL2X5DYZY62","download_json":"https://pith.science/pith/SHAHADS4LONWVCSNL2X5DYZY62.json","view_paper":"https://pith.science/paper/SHAHADS4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1005.5230&json=true","fetch_graph":"https://pith.science/api/pith-number/SHAHADS4LONWVCSNL2X5DYZY62/graph.json","fetch_events":"https://pith.science/api/pith-number/SHAHADS4LONWVCSNL2X5DYZY62/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/SHAHADS4LONWVCSNL2X5DYZY62/action/timestamp_anchor","attest_storage":"https://pith.science/pith/SHAHADS4LONWVCSNL2X5DYZY62/action/storage_attestation","attest_author":"https://pith.science/pith/SHAHADS4LONWVCSNL2X5DYZY62/action/author_attestation","sign_citation":"https://pith.science/pith/SHAHADS4LONWVCSNL2X5DYZY62/action/citation_signature","submit_replication":"https://pith.science/pith/SHAHADS4LONWVCSNL2X5DYZY62/action/replication_record"}},"created_at":"2026-05-18T02:33:23.682352+00:00","updated_at":"2026-05-18T02:33:23.682352+00:00"}