{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:PWGMTJCJX3N5VZTGWHBW4WS2CL","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":"be0bdc202813767eef8ef7a2a950a3e22fae04f1e8dbbd5f98066fbd5edd9425","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-04-06T19:56:20Z","title_canon_sha256":"aad64abb0923dd0e236410067679b6651d84361a6834782e963ee5f14fa02e72"},"schema_version":"1.0","source":{"id":"1204.1547","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.1547","created_at":"2026-05-18T01:57:56Z"},{"alias_kind":"arxiv_version","alias_value":"1204.1547v1","created_at":"2026-05-18T01:57:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.1547","created_at":"2026-05-18T01:57:56Z"},{"alias_kind":"pith_short_12","alias_value":"PWGMTJCJX3N5","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"PWGMTJCJX3N5VZTG","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"PWGMTJCJ","created_at":"2026-05-18T12:27:18Z"}],"graph_snapshots":[{"event_id":"sha256:0a7d17d53f8d6b9bdcfcb2c9317a58c0fa4d06c93a428b642d9bcc935a1dee01","target":"graph","created_at":"2026-05-18T01:57:56Z","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 propose an interesting mechanism to reconcile the recent experiments of the Michelson-Morley type and slowdown of the velocity of light in dark matter with a fractional electric charge when the index of refraction of dark matter depends on the frequency of a photon. After deriving the formula for the velocity of light in a medium with the index of refraction $n(\\omega)$ in a relativistic regime, it is shown that the local anisotropy of the light speed is proportional to the second order in $n(\\omega) - 1$. This result implies that the experiments of the Michelson-Morley type do not give ris","authors_text":"Ichiro Oda","cross_cats":["gr-qc","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-04-06T19:56:20Z","title":"Velocity of Light in Dark Matter with Charge"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.1547","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":"sha256:75cebb1ae7f113eae5622d9b8efcde08d90c0ac3bb2295b7ab4aad2c3d19e45b","target":"record","created_at":"2026-05-18T01:57:56Z","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":"be0bdc202813767eef8ef7a2a950a3e22fae04f1e8dbbd5f98066fbd5edd9425","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-04-06T19:56:20Z","title_canon_sha256":"aad64abb0923dd0e236410067679b6651d84361a6834782e963ee5f14fa02e72"},"schema_version":"1.0","source":{"id":"1204.1547","kind":"arxiv","version":1}},"canonical_sha256":"7d8cc9a449bedbdae666b1c36e5a5a12dad1f1e5e85f502db38e8e26c023c3c0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7d8cc9a449bedbdae666b1c36e5a5a12dad1f1e5e85f502db38e8e26c023c3c0","first_computed_at":"2026-05-18T01:57:56.051349Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:57:56.051349Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3NOZ4/AlpYMkpvMiosP/SaR5QlbSmXgAhdZ1gxIxLLjtPIsvrlW/oYj0lbpfG5Vgel2ptNZfcx4oo+ARq6sIAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:57:56.051923Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.1547","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:75cebb1ae7f113eae5622d9b8efcde08d90c0ac3bb2295b7ab4aad2c3d19e45b","sha256:0a7d17d53f8d6b9bdcfcb2c9317a58c0fa4d06c93a428b642d9bcc935a1dee01"],"state_sha256":"835901b0ba345fb16e35a5696ba00236594f20e057efe70bd20a3821165dcd2d"}