{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:CVCDYJZTEGYRZV7JYYYM6NFRCE","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":"ed06f11c63432cd524cea7686c51e711b72867f9175a693971925bce9adc5bc1","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2023-01-26T18:43:09Z","title_canon_sha256":"fb72f872d084b408a575bf8b322659ab0e4cb8efedf33154cc3fff92a4cc6e92"},"schema_version":"1.0","source":{"id":"2301.11304","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2301.11304","created_at":"2026-07-05T08:05:47Z"},{"alias_kind":"arxiv_version","alias_value":"2301.11304v3","created_at":"2026-07-05T08:05:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2301.11304","created_at":"2026-07-05T08:05:47Z"},{"alias_kind":"pith_short_12","alias_value":"CVCDYJZTEGYR","created_at":"2026-07-05T08:05:47Z"},{"alias_kind":"pith_short_16","alias_value":"CVCDYJZTEGYRZV7J","created_at":"2026-07-05T08:05:47Z"},{"alias_kind":"pith_short_8","alias_value":"CVCDYJZT","created_at":"2026-07-05T08:05:47Z"}],"graph_snapshots":[{"event_id":"sha256:9c291098424812f1e8753deca9909b69be217a8f36aab5864f1f09d8de69a2af","target":"graph","created_at":"2026-07-05T08:05:47Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2301.11304/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We develop an effective approach for the study of the interaction of gravitational waves (GWs) and electromagnetic waves (EMWs), showing that quadrirefringence can be produced, a phenomenon consisting in a frequency and polarization dependency of the speed of the different polarizations of GWs and EMWs, which is also inducing a frequency and polarization dependent modification of the GW-EMW luminosity distance ratio. Quadrirefringence can be due to the GW-EMW interaction in the source or during the propagation from the source to the observer. In the first case the astrophysical properties of t","authors_text":"Antonio Enea Romano, Sergio A. Vallejo-Pe\\~na","cross_cats":["astro-ph.CO","hep-th"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2023-01-26T18:43:09Z","title":"Gravitoelectromagnetic quadrirefringence"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.11304","kind":"arxiv","version":3},"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:a06dc58c51073f043f13c6104d55813b1a34b76ceb33eee3e8cdbad8587730b7","target":"record","created_at":"2026-07-05T08:05:47Z","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":"ed06f11c63432cd524cea7686c51e711b72867f9175a693971925bce9adc5bc1","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2023-01-26T18:43:09Z","title_canon_sha256":"fb72f872d084b408a575bf8b322659ab0e4cb8efedf33154cc3fff92a4cc6e92"},"schema_version":"1.0","source":{"id":"2301.11304","kind":"arxiv","version":3}},"canonical_sha256":"15443c273321b11cd7e9c630cf34b1110564f25a0e11e8b44aa85fc5a3b68e34","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"15443c273321b11cd7e9c630cf34b1110564f25a0e11e8b44aa85fc5a3b68e34","first_computed_at":"2026-07-05T08:05:47.783761Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:05:47.783761Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NsZqdb++yRl29jcAWu8reueMvz2plZxp1iu7awJAOi0jt+5eKfO+ocprVgivCQrKmyAq15o7kGdttwUbPGW+AQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:05:47.784140Z","signed_message":"canonical_sha256_bytes"},"source_id":"2301.11304","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a06dc58c51073f043f13c6104d55813b1a34b76ceb33eee3e8cdbad8587730b7","sha256:9c291098424812f1e8753deca9909b69be217a8f36aab5864f1f09d8de69a2af"],"state_sha256":"f19000882f31650a7be891ade12082078b15c196a730c0e7f03651dd6bcca901"}