{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:STFABUIQJJP57XILC76IA2Q6J7","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"7d7f49fddceb299fa3440db4f6a377e1fc452101ce10ca90cb661274082b3ab2","cross_cats_sorted":["hep-th","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-08-19T02:48:51Z","title_canon_sha256":"bc4bf15236599b7cfc267dc58f25a24d9000cfa54f4904f75160d6931aa14e7e"},"schema_version":"1.0","source":{"id":"1308.4124","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.4124","created_at":"2026-05-18T02:28:32Z"},{"alias_kind":"arxiv_version","alias_value":"1308.4124v1","created_at":"2026-05-18T02:28:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.4124","created_at":"2026-05-18T02:28:32Z"},{"alias_kind":"pith_short_12","alias_value":"STFABUIQJJP5","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"STFABUIQJJP57XIL","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"STFABUIQ","created_at":"2026-05-18T12:27:59Z"}],"graph_snapshots":[{"event_id":"sha256:9368c07e20850fc7c65923137bcf7baaaf18d50cbde5978f89035d184a2812fc","target":"graph","created_at":"2026-05-18T02:28:32Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We want to study thermal corrections on the speed of light at low temperature considering temperature dependence of photon vacuum polarization tensor at two-loop level in the standard QED. It is found that the heat bath behaves as a dispersive medium to the propagation of light and reduces its speed proprtional to the second order of temperature. Similiraties and differences with already known calculations which are based on Euler-Heisenberg Lagrangian and/or those using temperature dependent electromagnetic properties of the medium are discussed.","authors_text":"H. Razmi, M. Zamani","cross_cats":["hep-th","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-08-19T02:48:51Z","title":"QED Second Order Corrections on the Speed of Light at Low Temperature"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.4124","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:2fcb8b64860326a7d7101e5c02093a959765cf1bfcbce02a4b76610d52a07882","target":"record","created_at":"2026-05-18T02:28:32Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"7d7f49fddceb299fa3440db4f6a377e1fc452101ce10ca90cb661274082b3ab2","cross_cats_sorted":["hep-th","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-08-19T02:48:51Z","title_canon_sha256":"bc4bf15236599b7cfc267dc58f25a24d9000cfa54f4904f75160d6931aa14e7e"},"schema_version":"1.0","source":{"id":"1308.4124","kind":"arxiv","version":1}},"canonical_sha256":"94ca00d1104a5fdfdd0b17fc806a1e4fc2fcaf4e9f9aa81bd16f9638ef237ebb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"94ca00d1104a5fdfdd0b17fc806a1e4fc2fcaf4e9f9aa81bd16f9638ef237ebb","first_computed_at":"2026-05-18T02:28:32.022408Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:28:32.022408Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"T1KrVZ8icLDc/3ULBjZaNp0EGBcRzRT/8/PfW4cdV5RuwjVWkhU27jnWj4y2iA5/9NQg+a3T677+NGlyYnemCg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:28:32.022908Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.4124","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2fcb8b64860326a7d7101e5c02093a959765cf1bfcbce02a4b76610d52a07882","sha256:9368c07e20850fc7c65923137bcf7baaaf18d50cbde5978f89035d184a2812fc"],"state_sha256":"805bb5a3b5e50fd32a647e715c6559ac3e0c03cf74892b14ae31fd23d5f903ce"}