{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:MGIJAUE3SAZVFRIJS7VPP73TT3","short_pith_number":"pith:MGIJAUE3","canonical_record":{"source":{"id":"1601.02276","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-01-10T23:04:53Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"db842ab2a13062b3f5fe2d1487addb1341c30df7613503b978bb0c82204dae21","abstract_canon_sha256":"4ea7e13a846cddb9702a371235792be10f18605d268279c3acd8807ba63254c4"},"schema_version":"1.0"},"canonical_sha256":"619090509b903352c50997eaf7ff739ec6aecb774807f46a73f9e69ffb54e4c0","source":{"kind":"arxiv","id":"1601.02276","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.02276","created_at":"2026-05-18T00:23:57Z"},{"alias_kind":"arxiv_version","alias_value":"1601.02276v3","created_at":"2026-05-18T00:23:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.02276","created_at":"2026-05-18T00:23:57Z"},{"alias_kind":"pith_short_12","alias_value":"MGIJAUE3SAZV","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_16","alias_value":"MGIJAUE3SAZVFRIJ","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_8","alias_value":"MGIJAUE3","created_at":"2026-05-18T12:30:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:MGIJAUE3SAZVFRIJS7VPP73TT3","target":"record","payload":{"canonical_record":{"source":{"id":"1601.02276","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-01-10T23:04:53Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"db842ab2a13062b3f5fe2d1487addb1341c30df7613503b978bb0c82204dae21","abstract_canon_sha256":"4ea7e13a846cddb9702a371235792be10f18605d268279c3acd8807ba63254c4"},"schema_version":"1.0"},"canonical_sha256":"619090509b903352c50997eaf7ff739ec6aecb774807f46a73f9e69ffb54e4c0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:23:57.327784Z","signature_b64":"BlLQv6V/w97zuFkA9A+wBaDfMbpxMQ6T9LbXt+HfrPSmFmWj92Y0RXF4s0ROtrrjSdHHgvV1IN/o0em9VARiBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"619090509b903352c50997eaf7ff739ec6aecb774807f46a73f9e69ffb54e4c0","last_reissued_at":"2026-05-18T00:23:57.326635Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:23:57.326635Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1601.02276","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:23:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/3zezDf3FAsx0GoXPp0LeUVpKdNlNMXwQVYDdpa+UH5rUHM7CJsSAGMwAsN7o8WLdUiV7D4xYuMLPACyOCPHCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T22:05:11.827042Z"},"content_sha256":"58cedcd5e8bdd29bca47ae4b2270668c8e2e97729fd4c0d904bf822aa8321b76","schema_version":"1.0","event_id":"sha256:58cedcd5e8bdd29bca47ae4b2270668c8e2e97729fd4c0d904bf822aa8321b76"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:MGIJAUE3SAZVFRIJS7VPP73TT3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Three-dimensional photonic Dirac points stabilized by point group symmetry","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"HaiXiao Wang, Huanyang Chen, Jian-Hua Jiang, Lin Xu","submitted_at":"2016-01-10T23:04:53Z","abstract_excerpt":"We discover a pair of stable 3D Dirac points, 3D photonic analog of graphene, in all-dielectric photonic crystals using structures commensurate with nano-fabrication for visible-frequency photonic applications. The Dirac points carry nontrivial $Z_2$ topology and emerge for a large range of material parameters in hollow cylinder hexagonal photonic crystals. From Kramers theorem and group theory, we find that only the $C_6$ symmetry lead to point group symmetry stabilized Dirac points in 3D all-dielectric photonic crystals. {The Dirac points are characterized using ${\\vec k}\\cdot{\\vec P}$ theor"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.02276","kind":"arxiv","version":3},"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":"2026-05-18T00:23:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DFc/mrhB3+1PvsXkkD3Ic5oNUC8AlpKKWZ1k4sMrxJsWKUOBs6+WQi6jLSrTN4m3hUGEHmst0zNsJUkJ7PHtCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T22:05:11.827775Z"},"content_sha256":"7e0199a591d3de36cbe8472414865b411b7228bb755da5e1b03263eb7d340b8b","schema_version":"1.0","event_id":"sha256:7e0199a591d3de36cbe8472414865b411b7228bb755da5e1b03263eb7d340b8b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MGIJAUE3SAZVFRIJS7VPP73TT3/bundle.json","state_url":"https://pith.science/pith/MGIJAUE3SAZVFRIJS7VPP73TT3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MGIJAUE3SAZVFRIJS7VPP73TT3/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":"2026-06-05T22:05:11Z","links":{"resolver":"https://pith.science/pith/MGIJAUE3SAZVFRIJS7VPP73TT3","bundle":"https://pith.science/pith/MGIJAUE3SAZVFRIJS7VPP73TT3/bundle.json","state":"https://pith.science/pith/MGIJAUE3SAZVFRIJS7VPP73TT3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MGIJAUE3SAZVFRIJS7VPP73TT3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:MGIJAUE3SAZVFRIJS7VPP73TT3","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":"4ea7e13a846cddb9702a371235792be10f18605d268279c3acd8807ba63254c4","cross_cats_sorted":["physics.optics"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-01-10T23:04:53Z","title_canon_sha256":"db842ab2a13062b3f5fe2d1487addb1341c30df7613503b978bb0c82204dae21"},"schema_version":"1.0","source":{"id":"1601.02276","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.02276","created_at":"2026-05-18T00:23:57Z"},{"alias_kind":"arxiv_version","alias_value":"1601.02276v3","created_at":"2026-05-18T00:23:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.02276","created_at":"2026-05-18T00:23:57Z"},{"alias_kind":"pith_short_12","alias_value":"MGIJAUE3SAZV","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_16","alias_value":"MGIJAUE3SAZVFRIJ","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_8","alias_value":"MGIJAUE3","created_at":"2026-05-18T12:30:32Z"}],"graph_snapshots":[{"event_id":"sha256:7e0199a591d3de36cbe8472414865b411b7228bb755da5e1b03263eb7d340b8b","target":"graph","created_at":"2026-05-18T00:23:57Z","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 discover a pair of stable 3D Dirac points, 3D photonic analog of graphene, in all-dielectric photonic crystals using structures commensurate with nano-fabrication for visible-frequency photonic applications. The Dirac points carry nontrivial $Z_2$ topology and emerge for a large range of material parameters in hollow cylinder hexagonal photonic crystals. From Kramers theorem and group theory, we find that only the $C_6$ symmetry lead to point group symmetry stabilized Dirac points in 3D all-dielectric photonic crystals. {The Dirac points are characterized using ${\\vec k}\\cdot{\\vec P}$ theor","authors_text":"HaiXiao Wang, Huanyang Chen, Jian-Hua Jiang, Lin Xu","cross_cats":["physics.optics"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-01-10T23:04:53Z","title":"Three-dimensional photonic Dirac points stabilized by point group symmetry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.02276","kind":"arxiv","version":3},"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":"sha256:58cedcd5e8bdd29bca47ae4b2270668c8e2e97729fd4c0d904bf822aa8321b76","target":"record","created_at":"2026-05-18T00:23:57Z","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":"4ea7e13a846cddb9702a371235792be10f18605d268279c3acd8807ba63254c4","cross_cats_sorted":["physics.optics"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-01-10T23:04:53Z","title_canon_sha256":"db842ab2a13062b3f5fe2d1487addb1341c30df7613503b978bb0c82204dae21"},"schema_version":"1.0","source":{"id":"1601.02276","kind":"arxiv","version":3}},"canonical_sha256":"619090509b903352c50997eaf7ff739ec6aecb774807f46a73f9e69ffb54e4c0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"619090509b903352c50997eaf7ff739ec6aecb774807f46a73f9e69ffb54e4c0","first_computed_at":"2026-05-18T00:23:57.326635Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:23:57.326635Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BlLQv6V/w97zuFkA9A+wBaDfMbpxMQ6T9LbXt+HfrPSmFmWj92Y0RXF4s0ROtrrjSdHHgvV1IN/o0em9VARiBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:23:57.327784Z","signed_message":"canonical_sha256_bytes"},"source_id":"1601.02276","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:58cedcd5e8bdd29bca47ae4b2270668c8e2e97729fd4c0d904bf822aa8321b76","sha256:7e0199a591d3de36cbe8472414865b411b7228bb755da5e1b03263eb7d340b8b"],"state_sha256":"6b7da9ac7c27c94003ab759238fc90bfcb2c78cbd228beb5e8eda3a1e2fdaabf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VWgo0Z4Y9/nKAaacqTn2YLtYeTxwW7m+Tuhk/I67LYFvUE9mtEnLZ0gTeTtJwO3q44qoQwFrJ77tZx9dKEe2Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T22:05:11.831867Z","bundle_sha256":"eb8c2a8022224cf2d378fdfaf080d5a3a9f086e562c2de2b5bf1fd85f7ef69aa"}}