{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:I4EZQFJ36VLLZTELAKSQFCFBET","short_pith_number":"pith:I4EZQFJ3","canonical_record":{"source":{"id":"2002.12029","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-02-27T10:53:29Z","cross_cats_sorted":["physics.app-ph"],"title_canon_sha256":"d59b3d31131a4d2a99278a0bcebdeccbb49fcc4b22461a2c05f090974beff81c","abstract_canon_sha256":"e4a6d07180ba9a970ac1b731ec9fb70bb325a71d9d411db50dc1545def682d01"},"schema_version":"1.0"},"canonical_sha256":"470998153bf556bccc8b02a50288a124d65c011f2b8a246ed2ee63bc9a60286a","source":{"kind":"arxiv","id":"2002.12029","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.12029","created_at":"2026-07-05T01:14:40Z"},{"alias_kind":"arxiv_version","alias_value":"2002.12029v2","created_at":"2026-07-05T01:14:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.12029","created_at":"2026-07-05T01:14:40Z"},{"alias_kind":"pith_short_12","alias_value":"I4EZQFJ36VLL","created_at":"2026-07-05T01:14:40Z"},{"alias_kind":"pith_short_16","alias_value":"I4EZQFJ36VLLZTEL","created_at":"2026-07-05T01:14:40Z"},{"alias_kind":"pith_short_8","alias_value":"I4EZQFJ3","created_at":"2026-07-05T01:14:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:I4EZQFJ36VLLZTELAKSQFCFBET","target":"record","payload":{"canonical_record":{"source":{"id":"2002.12029","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-02-27T10:53:29Z","cross_cats_sorted":["physics.app-ph"],"title_canon_sha256":"d59b3d31131a4d2a99278a0bcebdeccbb49fcc4b22461a2c05f090974beff81c","abstract_canon_sha256":"e4a6d07180ba9a970ac1b731ec9fb70bb325a71d9d411db50dc1545def682d01"},"schema_version":"1.0"},"canonical_sha256":"470998153bf556bccc8b02a50288a124d65c011f2b8a246ed2ee63bc9a60286a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:14:40.520162Z","signature_b64":"lgEiXJUiL2V9JzuERE1Am6KoGEG7kC6l5P2Ln3lQ0DrsPLpUL8H9j3HCiw0brRrYMoQEB9o1TLqE86P7FSXtDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"470998153bf556bccc8b02a50288a124d65c011f2b8a246ed2ee63bc9a60286a","last_reissued_at":"2026-07-05T01:14:40.519689Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:14:40.519689Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2002.12029","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:14:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pnQ4BcjEbgZikwHcPMgyTAVldJbCDvvB7Tmo1fSCAQZMx6CasMyu68HuajV/kbxCU14VcOY7eixU1RaCQuPuAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T18:04:20.295915Z"},"content_sha256":"616a392c1b0195f334a9f7c59e11d849a595d31baade53e23462b04cbafbc302","schema_version":"1.0","event_id":"sha256:616a392c1b0195f334a9f7c59e11d849a595d31baade53e23462b04cbafbc302"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:I4EZQFJ36VLLZTELAKSQFCFBET","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The local density of optical states in the 3D band gap of a finite photonic crystal","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.app-ph"],"primary_cat":"physics.optics","authors_text":"Anna C. Tasolamprou, Charalampos P. Mavidis, Costas M. Soukoulis, Eleftherios N. Economou, Maria Kafesaki, Shakeeb B. Hasan, Thomas Koschny, Willem L. Vos","submitted_at":"2020-02-27T10:53:29Z","abstract_excerpt":"A three-dimensional (3D) photonic band gap crystal is an ideal tool to completely inhibit the local density of optical states (LDOS) at every position in the crystal throughout the band gap. This notion, however, pertains to ideal infinite crystals, whereas any real crystal device is necessarily finite. This raises the question as to how the LDOS in the gap depends on the position and orientation inside a finite-size crystal. Therefore, we employ rigorous numerical calculations using finite-difference time-domain (FDTD) simulations of 3D silicon inverse woodpile crystals filled with air or wit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.12029","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2002.12029/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:14:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+hkqjahjxMVNVq43jVwbqBqGEaRwO4FChpUYFqt9nGdKuaR2Nf4RgHOEgxiHOjEi1CuPKdae/88KTDQ+KH5+Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T18:04:20.296443Z"},"content_sha256":"c2f3f3b5c2e5cb480d1bf4965a8c9f046d65496ed79147be56e968b8bcc6eec8","schema_version":"1.0","event_id":"sha256:c2f3f3b5c2e5cb480d1bf4965a8c9f046d65496ed79147be56e968b8bcc6eec8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/I4EZQFJ36VLLZTELAKSQFCFBET/bundle.json","state_url":"https://pith.science/pith/I4EZQFJ36VLLZTELAKSQFCFBET/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/I4EZQFJ36VLLZTELAKSQFCFBET/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-15T18:04:20Z","links":{"resolver":"https://pith.science/pith/I4EZQFJ36VLLZTELAKSQFCFBET","bundle":"https://pith.science/pith/I4EZQFJ36VLLZTELAKSQFCFBET/bundle.json","state":"https://pith.science/pith/I4EZQFJ36VLLZTELAKSQFCFBET/state.json","well_known_bundle":"https://pith.science/.well-known/pith/I4EZQFJ36VLLZTELAKSQFCFBET/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:I4EZQFJ36VLLZTELAKSQFCFBET","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":"e4a6d07180ba9a970ac1b731ec9fb70bb325a71d9d411db50dc1545def682d01","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-02-27T10:53:29Z","title_canon_sha256":"d59b3d31131a4d2a99278a0bcebdeccbb49fcc4b22461a2c05f090974beff81c"},"schema_version":"1.0","source":{"id":"2002.12029","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.12029","created_at":"2026-07-05T01:14:40Z"},{"alias_kind":"arxiv_version","alias_value":"2002.12029v2","created_at":"2026-07-05T01:14:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.12029","created_at":"2026-07-05T01:14:40Z"},{"alias_kind":"pith_short_12","alias_value":"I4EZQFJ36VLL","created_at":"2026-07-05T01:14:40Z"},{"alias_kind":"pith_short_16","alias_value":"I4EZQFJ36VLLZTEL","created_at":"2026-07-05T01:14:40Z"},{"alias_kind":"pith_short_8","alias_value":"I4EZQFJ3","created_at":"2026-07-05T01:14:40Z"}],"graph_snapshots":[{"event_id":"sha256:c2f3f3b5c2e5cb480d1bf4965a8c9f046d65496ed79147be56e968b8bcc6eec8","target":"graph","created_at":"2026-07-05T01:14:40Z","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/2002.12029/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A three-dimensional (3D) photonic band gap crystal is an ideal tool to completely inhibit the local density of optical states (LDOS) at every position in the crystal throughout the band gap. This notion, however, pertains to ideal infinite crystals, whereas any real crystal device is necessarily finite. This raises the question as to how the LDOS in the gap depends on the position and orientation inside a finite-size crystal. Therefore, we employ rigorous numerical calculations using finite-difference time-domain (FDTD) simulations of 3D silicon inverse woodpile crystals filled with air or wit","authors_text":"Anna C. Tasolamprou, Charalampos P. Mavidis, Costas M. Soukoulis, Eleftherios N. Economou, Maria Kafesaki, Shakeeb B. Hasan, Thomas Koschny, Willem L. Vos","cross_cats":["physics.app-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-02-27T10:53:29Z","title":"The local density of optical states in the 3D band gap of a finite photonic crystal"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.12029","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":"sha256:616a392c1b0195f334a9f7c59e11d849a595d31baade53e23462b04cbafbc302","target":"record","created_at":"2026-07-05T01:14:40Z","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":"e4a6d07180ba9a970ac1b731ec9fb70bb325a71d9d411db50dc1545def682d01","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-02-27T10:53:29Z","title_canon_sha256":"d59b3d31131a4d2a99278a0bcebdeccbb49fcc4b22461a2c05f090974beff81c"},"schema_version":"1.0","source":{"id":"2002.12029","kind":"arxiv","version":2}},"canonical_sha256":"470998153bf556bccc8b02a50288a124d65c011f2b8a246ed2ee63bc9a60286a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"470998153bf556bccc8b02a50288a124d65c011f2b8a246ed2ee63bc9a60286a","first_computed_at":"2026-07-05T01:14:40.519689Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:14:40.519689Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lgEiXJUiL2V9JzuERE1Am6KoGEG7kC6l5P2Ln3lQ0DrsPLpUL8H9j3HCiw0brRrYMoQEB9o1TLqE86P7FSXtDw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:14:40.520162Z","signed_message":"canonical_sha256_bytes"},"source_id":"2002.12029","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:616a392c1b0195f334a9f7c59e11d849a595d31baade53e23462b04cbafbc302","sha256:c2f3f3b5c2e5cb480d1bf4965a8c9f046d65496ed79147be56e968b8bcc6eec8"],"state_sha256":"1ead49fe0852b0cf02864af31d4aa16b0cd8305a3871a417b5df3fe5305bb9fc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oIuqIPYZU94bFwmM6SAE2n8+7DnD/Ken/kgiFTDxiS9J0xZW/tHBU42DcJQpLcaPe8e1E+o7wPX92vwg0JgSBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T18:04:20.300561Z","bundle_sha256":"0be6e22bcb08421de3bbb332d6e171bd9ca7cb18488694982c3da741b675a5e8"}}