{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:FJMVCJIFG4GMNUT3NKV6WGJYDE","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":"8aded3240e10f0be58517225b9bb0f665b1af539b35c252393bdab8fa0fc97fb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-12-14T01:06:22Z","title_canon_sha256":"a943113c979cdaf39a2b2cb0d1c14ab6efd252d686030098a35104524252f727"},"schema_version":"1.0","source":{"id":"1512.04147","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.04147","created_at":"2026-05-18T00:56:12Z"},{"alias_kind":"arxiv_version","alias_value":"1512.04147v2","created_at":"2026-05-18T00:56:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.04147","created_at":"2026-05-18T00:56:12Z"},{"alias_kind":"pith_short_12","alias_value":"FJMVCJIFG4GM","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_16","alias_value":"FJMVCJIFG4GMNUT3","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_8","alias_value":"FJMVCJIF","created_at":"2026-05-18T12:29:19Z"}],"graph_snapshots":[{"event_id":"sha256:d2b1b1dcb7fb8d84a39eb9ea9ff20fcb97096a6a054d05f967b234c001b573bd","target":"graph","created_at":"2026-05-18T00:56:12Z","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":"The iso-frequency contours of a photonic crystal are important for predicting and understanding exotic optical phenomena that are not apparent from high-symmetry band structure visualizations. Here, we demonstrate a method to directly visualize the iso-frequency contours of high-quality photonic crystal slabs that shows quantitatively good agreement with numerical results throughout the visible spectrum. Our technique relies on resonance-enhanced photon scattering from generic fabrication disorder and surface roughness, so it can be applied to general photonic and plasmonic crystals, or even q","authors_text":"Bo Zhen, Chia Wei Hsu, Emma C. Regan, Ido Kaminer, John D. Joannopoulos, Marin Soljacic, Yichen Shen, Yuichi Igarashi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-12-14T01:06:22Z","title":"Imaging of Iso-frequency Contours via Resonance-Enhanced Scattering in Near-Pristine Photonic Crystals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.04147","kind":"arxiv","version":2},"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:c061382e06aec42719f5badc832ab632982f3d0f6468c5324d3155cef68c5739","target":"record","created_at":"2026-05-18T00:56:12Z","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":"8aded3240e10f0be58517225b9bb0f665b1af539b35c252393bdab8fa0fc97fb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-12-14T01:06:22Z","title_canon_sha256":"a943113c979cdaf39a2b2cb0d1c14ab6efd252d686030098a35104524252f727"},"schema_version":"1.0","source":{"id":"1512.04147","kind":"arxiv","version":2}},"canonical_sha256":"2a59512505370cc6d27b6aabeb1938190f88738863c69adb6eb7df8998192b83","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2a59512505370cc6d27b6aabeb1938190f88738863c69adb6eb7df8998192b83","first_computed_at":"2026-05-18T00:56:12.346467Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:56:12.346467Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VacT8XgoH+CEyC1jI7a8ZtPJqZ37AZE9tdjYoz62uNmhFNwGn5FyypitnepFKJANVVWsHGLXbOoCimvtSp2tBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:56:12.346976Z","signed_message":"canonical_sha256_bytes"},"source_id":"1512.04147","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c061382e06aec42719f5badc832ab632982f3d0f6468c5324d3155cef68c5739","sha256:d2b1b1dcb7fb8d84a39eb9ea9ff20fcb97096a6a054d05f967b234c001b573bd"],"state_sha256":"41994fe7c8fc01cea598946fb45fa80916acb5281c023fc636ec60ba84025d14"}