{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:MFKWHEMXT7US56OERKMRVQ73OJ","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":"744c4b4ab548ebf2b211e022105686655fca669063f08f094b819f67055f436a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-01-15T17:36:56Z","title_canon_sha256":"4dcbab286ba76a0a82618898f697deb52e85672f82c33deecd276063cfce5c04"},"schema_version":"1.0","source":{"id":"1601.04014","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.04014","created_at":"2026-05-18T00:58:04Z"},{"alias_kind":"arxiv_version","alias_value":"1601.04014v1","created_at":"2026-05-18T00:58:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.04014","created_at":"2026-05-18T00:58:04Z"},{"alias_kind":"pith_short_12","alias_value":"MFKWHEMXT7US","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_16","alias_value":"MFKWHEMXT7US56OE","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_8","alias_value":"MFKWHEMX","created_at":"2026-05-18T12:30:32Z"}],"graph_snapshots":[{"event_id":"sha256:10faa41548e212233b3659f83110fdc2685ed20d019623a12d424a58fe0994d8","target":"graph","created_at":"2026-05-18T00:58:04Z","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":"Propagation of light through a uniaxial material is studied using field theoretical methods. The materials is modeled by cubic lattice of oriented classical Lorentz oscillators. A two-step coarse graining approach is applied. At the bulk level, excitations of the coupled light-matter system, or polaritons, are described by a Proca-type equation for massive vector bosons. On the microscopic level, multiple scattering is used to relate the sub-luminal speed of the polaritons to the polarizability of the Lorentz oscillators. For each direction of propagation of the polaritons, three independent p","authors_text":"Girish Lakhwani, Stefan C.J. Meskers","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-01-15T17:36:56Z","title":"A model for exciton-polaritons in uniaxial molecular crystals describing spatial dispersion, refraction and reflection"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.04014","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:f92de8a0bd33f714fe6c5e75f9a5b4c80d7b8c2c994173fe722c996e45ead9b8","target":"record","created_at":"2026-05-18T00:58:04Z","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":"744c4b4ab548ebf2b211e022105686655fca669063f08f094b819f67055f436a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-01-15T17:36:56Z","title_canon_sha256":"4dcbab286ba76a0a82618898f697deb52e85672f82c33deecd276063cfce5c04"},"schema_version":"1.0","source":{"id":"1601.04014","kind":"arxiv","version":1}},"canonical_sha256":"61556391979fe92ef9c48a991ac3fb724841363851e423fee153031bf89122df","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"61556391979fe92ef9c48a991ac3fb724841363851e423fee153031bf89122df","first_computed_at":"2026-05-18T00:58:04.306132Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:58:04.306132Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BcgVFwCTYPpeWkShhZlnyv1kXMBQLMqjKAjcZmtj79Fgogb4l7yPgCK9eXiiRymwMGPi38i/KTvG7u2a4g3jCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:58:04.306591Z","signed_message":"canonical_sha256_bytes"},"source_id":"1601.04014","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f92de8a0bd33f714fe6c5e75f9a5b4c80d7b8c2c994173fe722c996e45ead9b8","sha256:10faa41548e212233b3659f83110fdc2685ed20d019623a12d424a58fe0994d8"],"state_sha256":"870228fc7879db7276a19b11473365a478ac00b1dd439c99bdd7366400a10f59"}