{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:WA4TJQNQBGHTPJTAZAINRV7NSL","short_pith_number":"pith:WA4TJQNQ","canonical_record":{"source":{"id":"1310.3550","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-10-14T03:03:08Z","cross_cats_sorted":[],"title_canon_sha256":"d8f496838872e57547c3b96ada251e73c5d8e514849c1a2add2c792a02781032","abstract_canon_sha256":"3d3c7148ed0cb64ead1b90dd1955318db8c2dd540a78317d9c7bcf6686113f58"},"schema_version":"1.0"},"canonical_sha256":"b03934c1b0098f37a660c810d8d7ed92c209d95dcec4d3c936434dd0ea2c440b","source":{"kind":"arxiv","id":"1310.3550","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.3550","created_at":"2026-05-18T03:10:25Z"},{"alias_kind":"arxiv_version","alias_value":"1310.3550v2","created_at":"2026-05-18T03:10:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.3550","created_at":"2026-05-18T03:10:25Z"},{"alias_kind":"pith_short_12","alias_value":"WA4TJQNQBGHT","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"WA4TJQNQBGHTPJTA","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"WA4TJQNQ","created_at":"2026-05-18T12:28:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:WA4TJQNQBGHTPJTAZAINRV7NSL","target":"record","payload":{"canonical_record":{"source":{"id":"1310.3550","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-10-14T03:03:08Z","cross_cats_sorted":[],"title_canon_sha256":"d8f496838872e57547c3b96ada251e73c5d8e514849c1a2add2c792a02781032","abstract_canon_sha256":"3d3c7148ed0cb64ead1b90dd1955318db8c2dd540a78317d9c7bcf6686113f58"},"schema_version":"1.0"},"canonical_sha256":"b03934c1b0098f37a660c810d8d7ed92c209d95dcec4d3c936434dd0ea2c440b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:10:25.914708Z","signature_b64":"cbJ8GC4wABy+U4wXlruV5WaeQl6zc3HONBaANs09K9LC+822DJKtvsBMAPf+URi/QcjZmEeF2afXSp6l30HMCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b03934c1b0098f37a660c810d8d7ed92c209d95dcec4d3c936434dd0ea2c440b","last_reissued_at":"2026-05-18T03:10:25.913849Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:10:25.913849Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1310.3550","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":"2026-05-18T03:10:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ywwhLzHgTBj4+qRApuH5opkqhF7GysjbhhWAnEopl+6Zjzk1fSNfS6hIgjpEupq6OFW92kv2MV4zbQjQmZC2Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T09:11:12.323143Z"},"content_sha256":"2d573378265e6e83c781936c6a494e9ebcd7a35ad56481d064749862b4729cea","schema_version":"1.0","event_id":"sha256:2d573378265e6e83c781936c6a494e9ebcd7a35ad56481d064749862b4729cea"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:WA4TJQNQBGHTPJTAZAINRV7NSL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Efficient multiband absorber based on 1D periodic metal-dielectric photonic crystals with a reflective substrate","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Ju Xu, Nicholas X. Fang, Sailing He, Ting Ji, Wenyan Wang, Ximin Tian, Yanxia Cui, Yingran He, Yinyue Lin, Yuying Hao","submitted_at":"2013-10-14T03:03:08Z","abstract_excerpt":"We propose an efficient multiband absorber comprising a truncated one-dimensional periodic metal-dielectric photonic crystal and a reflective substrate. The reflective substrate is actually an optically thick metallic film. Such a planar device is easier to fabricate compared with the absorbers with complicated shapes. For a 4-unit cell device, all of the four absorption peaks can be optimized with efficiencies higher than 95%. Moreover, those absorption peaks are insensitive to both polarization and incident angle. The influences of the geometrical parameters along with the refractive index o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.3550","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":""},"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":"2026-05-18T03:10:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qkd0F8K5zOMdPkTZ8rMncjcDu+hKSvkTXclX+vLUEDS/dOSAtP4qGv73MXrD0iVLgyMyK/DkzjyWJxfaBUZTDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T09:11:12.323928Z"},"content_sha256":"70c940914d5df148d67f2b5279d1474a265437c5fe1801498a698f6ee3a2117a","schema_version":"1.0","event_id":"sha256:70c940914d5df148d67f2b5279d1474a265437c5fe1801498a698f6ee3a2117a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WA4TJQNQBGHTPJTAZAINRV7NSL/bundle.json","state_url":"https://pith.science/pith/WA4TJQNQBGHTPJTAZAINRV7NSL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WA4TJQNQBGHTPJTAZAINRV7NSL/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":"2026-05-26T09:11:12Z","links":{"resolver":"https://pith.science/pith/WA4TJQNQBGHTPJTAZAINRV7NSL","bundle":"https://pith.science/pith/WA4TJQNQBGHTPJTAZAINRV7NSL/bundle.json","state":"https://pith.science/pith/WA4TJQNQBGHTPJTAZAINRV7NSL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WA4TJQNQBGHTPJTAZAINRV7NSL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:WA4TJQNQBGHTPJTAZAINRV7NSL","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":"3d3c7148ed0cb64ead1b90dd1955318db8c2dd540a78317d9c7bcf6686113f58","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-10-14T03:03:08Z","title_canon_sha256":"d8f496838872e57547c3b96ada251e73c5d8e514849c1a2add2c792a02781032"},"schema_version":"1.0","source":{"id":"1310.3550","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.3550","created_at":"2026-05-18T03:10:25Z"},{"alias_kind":"arxiv_version","alias_value":"1310.3550v2","created_at":"2026-05-18T03:10:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.3550","created_at":"2026-05-18T03:10:25Z"},{"alias_kind":"pith_short_12","alias_value":"WA4TJQNQBGHT","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"WA4TJQNQBGHTPJTA","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"WA4TJQNQ","created_at":"2026-05-18T12:28:04Z"}],"graph_snapshots":[{"event_id":"sha256:70c940914d5df148d67f2b5279d1474a265437c5fe1801498a698f6ee3a2117a","target":"graph","created_at":"2026-05-18T03:10:25Z","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":"We propose an efficient multiband absorber comprising a truncated one-dimensional periodic metal-dielectric photonic crystal and a reflective substrate. The reflective substrate is actually an optically thick metallic film. Such a planar device is easier to fabricate compared with the absorbers with complicated shapes. For a 4-unit cell device, all of the four absorption peaks can be optimized with efficiencies higher than 95%. Moreover, those absorption peaks are insensitive to both polarization and incident angle. The influences of the geometrical parameters along with the refractive index o","authors_text":"Ju Xu, Nicholas X. Fang, Sailing He, Ting Ji, Wenyan Wang, Ximin Tian, Yanxia Cui, Yingran He, Yinyue Lin, Yuying Hao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-10-14T03:03:08Z","title":"Efficient multiband absorber based on 1D periodic metal-dielectric photonic crystals with a reflective substrate"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.3550","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":"sha256:2d573378265e6e83c781936c6a494e9ebcd7a35ad56481d064749862b4729cea","target":"record","created_at":"2026-05-18T03:10:25Z","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":"3d3c7148ed0cb64ead1b90dd1955318db8c2dd540a78317d9c7bcf6686113f58","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-10-14T03:03:08Z","title_canon_sha256":"d8f496838872e57547c3b96ada251e73c5d8e514849c1a2add2c792a02781032"},"schema_version":"1.0","source":{"id":"1310.3550","kind":"arxiv","version":2}},"canonical_sha256":"b03934c1b0098f37a660c810d8d7ed92c209d95dcec4d3c936434dd0ea2c440b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b03934c1b0098f37a660c810d8d7ed92c209d95dcec4d3c936434dd0ea2c440b","first_computed_at":"2026-05-18T03:10:25.913849Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:10:25.913849Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cbJ8GC4wABy+U4wXlruV5WaeQl6zc3HONBaANs09K9LC+822DJKtvsBMAPf+URi/QcjZmEeF2afXSp6l30HMCg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:10:25.914708Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.3550","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2d573378265e6e83c781936c6a494e9ebcd7a35ad56481d064749862b4729cea","sha256:70c940914d5df148d67f2b5279d1474a265437c5fe1801498a698f6ee3a2117a"],"state_sha256":"6d0a140c35fd96a74d675b043eabea95f4c9ded1cd8fac451dacac9e5a5e8d8d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CJhEmW7H2C6mBAA00IdRKLCRR4CjzLnlfVurrLxOZtiDwOKtf0KZsvJMJuGNOk5W9BInilCV1b3rsocbOyXHDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T09:11:12.327929Z","bundle_sha256":"50dd076b088c27a782ea723debf75040660f0fe775b48aab10e0474e69cb274b"}}