{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:WX2HHIURJEQCEOQYLQWVG422ZB","merge_version":"pith-open-graph-merge-v1","event_count":3,"valid_event_count":3,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"e7c30278dc201a6dc778653fd6ec9714f4896b6c66df8537bba71172a28d6349","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-08-04T14:47:47Z","title_canon_sha256":"fe5d0f887d96ac5d383d32a16ce1a5cff6732a234e6fb1f4622e11327fde1652"},"schema_version":"1.0","source":{"id":"2608.03759","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.03759","created_at":"2026-08-05T01:37:02Z"},{"alias_kind":"arxiv_version","alias_value":"2608.03759v1","created_at":"2026-08-05T01:37:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.03759","created_at":"2026-08-05T01:37:02Z"},{"alias_kind":"pith_short_12","alias_value":"WX2HHIURJEQC","created_at":"2026-08-05T01:37:02Z"},{"alias_kind":"pith_short_16","alias_value":"WX2HHIURJEQCEOQY","created_at":"2026-08-05T01:37:02Z"},{"alias_kind":"pith_short_8","alias_value":"WX2HHIUR","created_at":"2026-08-05T01:37:02Z"}],"graph_snapshots":[{"event_id":"sha256:289bee0bd75987da4aa5dc07902df4994ad26d1f7aa8aee8b85d3268a8b06437","target":"graph","created_at":"2026-08-05T01:37:02Z","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/2608.03759/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Layered and periodically patterned heterostructures underpin advanced optical, photonic, and plasmonic (meta)materials, whose rational design demands electromagnetic solvers that are both numerically robust and tightly linked to the underlying material properties. Here, we present AFLOW-EMERALD (ElectroMagnetic modes EngineeRing in Advanced LayereD materials), an open-source, modular, Python-based computational framework for simulating electromagnetic wave propagation in finite and periodic layered (meta)materials. Built around a unified object-oriented architecture, AFLOW-EMERALD combines a n","authors_text":"Arrigo Calzolari, Luca Bursi, Nicholas H. Anderson, Stefano Campanaro, Stefano Curtarolo","cross_cats":["physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-08-04T14:47:47Z","title":"AFLOW-EMERALD: ElectroMagnetic modes EngineeRing in Advanced LayereD materials"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.03759","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":"sha256:046938889fcc9ba8b01e05a4958eb23feca12002a05f8943700a18635b60f2de","target":"record","created_at":"2026-08-05T01:37:02Z","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":"e7c30278dc201a6dc778653fd6ec9714f4896b6c66df8537bba71172a28d6349","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-08-04T14:47:47Z","title_canon_sha256":"fe5d0f887d96ac5d383d32a16ce1a5cff6732a234e6fb1f4622e11327fde1652"},"schema_version":"1.0","source":{"id":"2608.03759","kind":"arxiv","version":1}},"canonical_sha256":"b5f473a2914920223a185c2d53735ac8779dca72a99cb2dcd3463e0d8201b722","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b5f473a2914920223a185c2d53735ac8779dca72a99cb2dcd3463e0d8201b722","first_computed_at":"2026-08-05T01:37:02.433940Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-05T01:37:02.433940Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TbUET19HNwJInLddmarSYIlNqfT5ewxzEb+lrFKp0s7hF29+ZuuAdTlKnNlSolcgcrqHKVpDfsp/YIlzurp5AQ==","signature_status":"signed_v1","signed_at":"2026-08-05T01:37:02.435368Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.03759","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:046938889fcc9ba8b01e05a4958eb23feca12002a05f8943700a18635b60f2de","sha256:289bee0bd75987da4aa5dc07902df4994ad26d1f7aa8aee8b85d3268a8b06437","sha256:fd55128645bf0e4a233e1c04fc7f67af81975e304d964ef1741c54983fe161a3"],"state_sha256":"9f8fd2f2d67121d4cfdfc028129668a2f3577c8f1235e1df26030ca495ae38bd"}