{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:2ZWFXVIUYIVAZFQ3TIZQGUA77E","short_pith_number":"pith:2ZWFXVIU","canonical_record":{"source":{"id":"1012.5263","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2010-12-23T17:54:00Z","cross_cats_sorted":[],"title_canon_sha256":"ddf592d447cfbd5581023e913599462956085959625acf75fd82da5ae131c075","abstract_canon_sha256":"d8b3f2274f67e39709b29b03942e59a349fecc4de9b22000bafc33e5b3a99cce"},"schema_version":"1.0"},"canonical_sha256":"d66c5bd514c22a0c961b9a3303501ff91d4b86a6a33d887074de6e00d4b3aacb","source":{"kind":"arxiv","id":"1012.5263","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.5263","created_at":"2026-05-18T04:20:14Z"},{"alias_kind":"arxiv_version","alias_value":"1012.5263v2","created_at":"2026-05-18T04:20:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.5263","created_at":"2026-05-18T04:20:14Z"},{"alias_kind":"pith_short_12","alias_value":"2ZWFXVIUYIVA","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"2ZWFXVIUYIVAZFQ3","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"2ZWFXVIU","created_at":"2026-05-18T12:26:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:2ZWFXVIUYIVAZFQ3TIZQGUA77E","target":"record","payload":{"canonical_record":{"source":{"id":"1012.5263","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2010-12-23T17:54:00Z","cross_cats_sorted":[],"title_canon_sha256":"ddf592d447cfbd5581023e913599462956085959625acf75fd82da5ae131c075","abstract_canon_sha256":"d8b3f2274f67e39709b29b03942e59a349fecc4de9b22000bafc33e5b3a99cce"},"schema_version":"1.0"},"canonical_sha256":"d66c5bd514c22a0c961b9a3303501ff91d4b86a6a33d887074de6e00d4b3aacb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:20:14.508727Z","signature_b64":"QLVQav2KmGOkdTGbldlBGDiJqM6DsBDOxjxzb4q4oo40ILMtSJbXe0Cq+Tl1OyC+mk/81qe/JUOBoHZYa/HzDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d66c5bd514c22a0c961b9a3303501ff91d4b86a6a33d887074de6e00d4b3aacb","last_reissued_at":"2026-05-18T04:20:14.508339Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:20:14.508339Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1012.5263","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":"2026-05-18T04:20:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fCTS1V2Mf7a83zHpWaU9cdIMmktiEPtvDu9w0uu2d7ag9w1Jz4PrVGPsdOeizNTYI1pIotxpw8NAU54ELtDUCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T01:02:37.283198Z"},"content_sha256":"92fbdcbad075b58dc76b8b9dfabedfb3a115cd957a62f47fbea25b2c7bd36515","schema_version":"1.0","event_id":"sha256:92fbdcbad075b58dc76b8b9dfabedfb3a115cd957a62f47fbea25b2c7bd36515"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:2ZWFXVIUYIVAZFQ3TIZQGUA77E","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Signature of a three-dimensional photonic band gap observed on silicon inverse woodpile photonic crystals","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Allard P. Mosk, L\\'eon A. Woldering, Merel D. Leistikow, Rajesh V. Nair, Simon R. Huisman, Willem L. Vos","submitted_at":"2010-12-23T17:54:00Z","abstract_excerpt":"We have studied the reflectivity of CMOS-compatible three-dimensional silicon inverse woodpile photonic crystals at near-infrared frequencies. Polarization-resolved reflectivity spectra were obtained from two orthogonal crystal surfaces corresponding to 1.88 pi sr solid angle. The spectra reveal broad peaks with high reflectivity up to 67 % that are independent of the spatial position on the crystals. The spectrally overlapping reflectivity peaks for all directions and polarizations form the signature of a broad photonic band gap with a relative bandwidth up to 16 %. This signature is supporte"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.5263","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":"2026-05-18T04:20:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iSmrEU6iiIp/mup/RCbef0HMsHOCW+KLZKuvo8RvR7zdy4o6q7dxMF2jRbjaFZWJ4RpsLeKdNqihd2cQUHNEDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T01:02:37.283843Z"},"content_sha256":"a3ebe575671add6f248075780e28f3bf33fcad56c836610f304f5c2c54ef442d","schema_version":"1.0","event_id":"sha256:a3ebe575671add6f248075780e28f3bf33fcad56c836610f304f5c2c54ef442d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2ZWFXVIUYIVAZFQ3TIZQGUA77E/bundle.json","state_url":"https://pith.science/pith/2ZWFXVIUYIVAZFQ3TIZQGUA77E/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2ZWFXVIUYIVAZFQ3TIZQGUA77E/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":"2026-06-05T01:02:37Z","links":{"resolver":"https://pith.science/pith/2ZWFXVIUYIVAZFQ3TIZQGUA77E","bundle":"https://pith.science/pith/2ZWFXVIUYIVAZFQ3TIZQGUA77E/bundle.json","state":"https://pith.science/pith/2ZWFXVIUYIVAZFQ3TIZQGUA77E/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2ZWFXVIUYIVAZFQ3TIZQGUA77E/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:2ZWFXVIUYIVAZFQ3TIZQGUA77E","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":"d8b3f2274f67e39709b29b03942e59a349fecc4de9b22000bafc33e5b3a99cce","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2010-12-23T17:54:00Z","title_canon_sha256":"ddf592d447cfbd5581023e913599462956085959625acf75fd82da5ae131c075"},"schema_version":"1.0","source":{"id":"1012.5263","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.5263","created_at":"2026-05-18T04:20:14Z"},{"alias_kind":"arxiv_version","alias_value":"1012.5263v2","created_at":"2026-05-18T04:20:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.5263","created_at":"2026-05-18T04:20:14Z"},{"alias_kind":"pith_short_12","alias_value":"2ZWFXVIUYIVA","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"2ZWFXVIUYIVAZFQ3","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"2ZWFXVIU","created_at":"2026-05-18T12:26:03Z"}],"graph_snapshots":[{"event_id":"sha256:a3ebe575671add6f248075780e28f3bf33fcad56c836610f304f5c2c54ef442d","target":"graph","created_at":"2026-05-18T04:20:14Z","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 have studied the reflectivity of CMOS-compatible three-dimensional silicon inverse woodpile photonic crystals at near-infrared frequencies. Polarization-resolved reflectivity spectra were obtained from two orthogonal crystal surfaces corresponding to 1.88 pi sr solid angle. The spectra reveal broad peaks with high reflectivity up to 67 % that are independent of the spatial position on the crystals. The spectrally overlapping reflectivity peaks for all directions and polarizations form the signature of a broad photonic band gap with a relative bandwidth up to 16 %. This signature is supporte","authors_text":"Allard P. Mosk, L\\'eon A. Woldering, Merel D. Leistikow, Rajesh V. Nair, Simon R. Huisman, Willem L. Vos","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2010-12-23T17:54:00Z","title":"Signature of a three-dimensional photonic band gap observed on silicon inverse woodpile photonic crystals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.5263","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":"sha256:92fbdcbad075b58dc76b8b9dfabedfb3a115cd957a62f47fbea25b2c7bd36515","target":"record","created_at":"2026-05-18T04:20:14Z","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":"d8b3f2274f67e39709b29b03942e59a349fecc4de9b22000bafc33e5b3a99cce","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2010-12-23T17:54:00Z","title_canon_sha256":"ddf592d447cfbd5581023e913599462956085959625acf75fd82da5ae131c075"},"schema_version":"1.0","source":{"id":"1012.5263","kind":"arxiv","version":2}},"canonical_sha256":"d66c5bd514c22a0c961b9a3303501ff91d4b86a6a33d887074de6e00d4b3aacb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d66c5bd514c22a0c961b9a3303501ff91d4b86a6a33d887074de6e00d4b3aacb","first_computed_at":"2026-05-18T04:20:14.508339Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:20:14.508339Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QLVQav2KmGOkdTGbldlBGDiJqM6DsBDOxjxzb4q4oo40ILMtSJbXe0Cq+Tl1OyC+mk/81qe/JUOBoHZYa/HzDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:20:14.508727Z","signed_message":"canonical_sha256_bytes"},"source_id":"1012.5263","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:92fbdcbad075b58dc76b8b9dfabedfb3a115cd957a62f47fbea25b2c7bd36515","sha256:a3ebe575671add6f248075780e28f3bf33fcad56c836610f304f5c2c54ef442d"],"state_sha256":"50933afc21dd761da0d9f358fd5071159b403ac865a9b3ef0b1b20c2da350799"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5t8Y/Q6MZ1pP9sAGN7AWmVC9ELzn7Ju3sxDX7f7LDAiqrj6L6GSsUDnB6RFW3a4MNOw2We3gVJZM2oyH3O9ZAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T01:02:37.287142Z","bundle_sha256":"9e85d78742cefd26b400abe972b20ce4258b849433223b9a9118bfd1aca51a18"}}