{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:SILPT63LC7FG7A2ULAHFLBT2GK","short_pith_number":"pith:SILPT63L","canonical_record":{"source":{"id":"1503.00416","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-03-02T05:22:04Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"9b41d4ba5b66eef1f16bdc5bbb730165a96c148407b851fa0ca237d7b048f9f1","abstract_canon_sha256":"f2e91aa0df3675594e3f7ba9b508c3badf7f780bd7208f6db56b1c21475ccf8b"},"schema_version":"1.0"},"canonical_sha256":"9216f9fb6b17ca6f8354580e55867a3282a0f3aaf30cd8b3709f75504a61f0a6","source":{"kind":"arxiv","id":"1503.00416","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.00416","created_at":"2026-05-18T01:57:41Z"},{"alias_kind":"arxiv_version","alias_value":"1503.00416v1","created_at":"2026-05-18T01:57:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.00416","created_at":"2026-05-18T01:57:41Z"},{"alias_kind":"pith_short_12","alias_value":"SILPT63LC7FG","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_16","alias_value":"SILPT63LC7FG7A2U","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_8","alias_value":"SILPT63L","created_at":"2026-05-18T12:29:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:SILPT63LC7FG7A2ULAHFLBT2GK","target":"record","payload":{"canonical_record":{"source":{"id":"1503.00416","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-03-02T05:22:04Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"9b41d4ba5b66eef1f16bdc5bbb730165a96c148407b851fa0ca237d7b048f9f1","abstract_canon_sha256":"f2e91aa0df3675594e3f7ba9b508c3badf7f780bd7208f6db56b1c21475ccf8b"},"schema_version":"1.0"},"canonical_sha256":"9216f9fb6b17ca6f8354580e55867a3282a0f3aaf30cd8b3709f75504a61f0a6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:57:41.630875Z","signature_b64":"ufisUGmdFusf+nEYFRT7Il2vt4o6VP/B/AfmEPk/FzRZSeItraL7pJZBCprGE7TQdaG9P8KJRRfKw3Fq/eNACQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9216f9fb6b17ca6f8354580e55867a3282a0f3aaf30cd8b3709f75504a61f0a6","last_reissued_at":"2026-05-18T01:57:41.630218Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:57:41.630218Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1503.00416","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:57:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dg6VWjctTc45+ABaeeyrIVHXAerj7Ys2ryn+y8rtaAwlLu75AqaX79YvDIhGxcLr8V+844odw1LCIJZMVa2xBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T04:41:32.226860Z"},"content_sha256":"d7b41b17c691b834bd71f67bfdf7a403f32bbabad3abad63bb2734f5d3192770","schema_version":"1.0","event_id":"sha256:d7b41b17c691b834bd71f67bfdf7a403f32bbabad3abad63bb2734f5d3192770"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:SILPT63LC7FG7A2ULAHFLBT2GK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Scheme to Achieve Silicon Topological Photonics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Long-Hua Wu, Xiao Hu","submitted_at":"2015-03-02T05:22:04Z","abstract_excerpt":"We derive in the present work topological photonic states purely based on silicon, a conventional dielectric material, by deforming a honeycomb lattice of silicon cylinders into a triangular lattice of cylinder hexagons. The photonic topology is associated with a pseudo time reversal (TR) symmetry constituted by the TR symmetry respected in general by the Maxwell equations and the $C_6$ crystal symmetry upon design, which renders the Kramers doubling in the present photonic system with the role of pseudo spin played by the circular polarization of magnetic field in the transverse magnetic mode"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.00416","kind":"arxiv","version":1},"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":"2026-05-18T01:57:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"huRu1wRQQbw4yBAF5BfSlKOKr9jqH4Mg1rKQgnT504iWLs8+U/IYdsL6wd3zedWCshLVo3jMKDHeygYavTzLCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T04:41:32.227553Z"},"content_sha256":"b865bca4a58c8ddbffc556aa1b80f2b18c96be9aa1a3283af3d94f4161ead7ff","schema_version":"1.0","event_id":"sha256:b865bca4a58c8ddbffc556aa1b80f2b18c96be9aa1a3283af3d94f4161ead7ff"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SILPT63LC7FG7A2ULAHFLBT2GK/bundle.json","state_url":"https://pith.science/pith/SILPT63LC7FG7A2ULAHFLBT2GK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SILPT63LC7FG7A2ULAHFLBT2GK/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":"2026-06-08T04:41:32Z","links":{"resolver":"https://pith.science/pith/SILPT63LC7FG7A2ULAHFLBT2GK","bundle":"https://pith.science/pith/SILPT63LC7FG7A2ULAHFLBT2GK/bundle.json","state":"https://pith.science/pith/SILPT63LC7FG7A2ULAHFLBT2GK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SILPT63LC7FG7A2ULAHFLBT2GK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:SILPT63LC7FG7A2ULAHFLBT2GK","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":"f2e91aa0df3675594e3f7ba9b508c3badf7f780bd7208f6db56b1c21475ccf8b","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-03-02T05:22:04Z","title_canon_sha256":"9b41d4ba5b66eef1f16bdc5bbb730165a96c148407b851fa0ca237d7b048f9f1"},"schema_version":"1.0","source":{"id":"1503.00416","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.00416","created_at":"2026-05-18T01:57:41Z"},{"alias_kind":"arxiv_version","alias_value":"1503.00416v1","created_at":"2026-05-18T01:57:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.00416","created_at":"2026-05-18T01:57:41Z"},{"alias_kind":"pith_short_12","alias_value":"SILPT63LC7FG","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_16","alias_value":"SILPT63LC7FG7A2U","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_8","alias_value":"SILPT63L","created_at":"2026-05-18T12:29:42Z"}],"graph_snapshots":[{"event_id":"sha256:b865bca4a58c8ddbffc556aa1b80f2b18c96be9aa1a3283af3d94f4161ead7ff","target":"graph","created_at":"2026-05-18T01:57:41Z","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 derive in the present work topological photonic states purely based on silicon, a conventional dielectric material, by deforming a honeycomb lattice of silicon cylinders into a triangular lattice of cylinder hexagons. The photonic topology is associated with a pseudo time reversal (TR) symmetry constituted by the TR symmetry respected in general by the Maxwell equations and the $C_6$ crystal symmetry upon design, which renders the Kramers doubling in the present photonic system with the role of pseudo spin played by the circular polarization of magnetic field in the transverse magnetic mode","authors_text":"Long-Hua Wu, Xiao Hu","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-03-02T05:22:04Z","title":"Scheme to Achieve Silicon Topological Photonics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.00416","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:d7b41b17c691b834bd71f67bfdf7a403f32bbabad3abad63bb2734f5d3192770","target":"record","created_at":"2026-05-18T01:57:41Z","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":"f2e91aa0df3675594e3f7ba9b508c3badf7f780bd7208f6db56b1c21475ccf8b","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-03-02T05:22:04Z","title_canon_sha256":"9b41d4ba5b66eef1f16bdc5bbb730165a96c148407b851fa0ca237d7b048f9f1"},"schema_version":"1.0","source":{"id":"1503.00416","kind":"arxiv","version":1}},"canonical_sha256":"9216f9fb6b17ca6f8354580e55867a3282a0f3aaf30cd8b3709f75504a61f0a6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9216f9fb6b17ca6f8354580e55867a3282a0f3aaf30cd8b3709f75504a61f0a6","first_computed_at":"2026-05-18T01:57:41.630218Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:57:41.630218Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ufisUGmdFusf+nEYFRT7Il2vt4o6VP/B/AfmEPk/FzRZSeItraL7pJZBCprGE7TQdaG9P8KJRRfKw3Fq/eNACQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:57:41.630875Z","signed_message":"canonical_sha256_bytes"},"source_id":"1503.00416","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d7b41b17c691b834bd71f67bfdf7a403f32bbabad3abad63bb2734f5d3192770","sha256:b865bca4a58c8ddbffc556aa1b80f2b18c96be9aa1a3283af3d94f4161ead7ff"],"state_sha256":"7e7ee022782516f42990264f5065661ff35dbf788633720b904b40d99e0215ac"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1ACu/3/JgDt17BkfYug/t61hd9hOQiF2WbZVffdvsgwXP5ocvej9qz7C1TF/H+AouEei/t99S27BSa4w288YDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T04:41:32.231331Z","bundle_sha256":"c463ec9716e6254d33798748cfcd77b4cbf8ebaf3622767f011a97a5b881b88c"}}