{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:35J3C32CKZGSLGADPWIXHITCCQ","short_pith_number":"pith:35J3C32C","canonical_record":{"source":{"id":"2103.03686","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2021-02-14T16:37:48Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"2e64958eb53cf44f9ea8b62709f05f705b7b35fd74220b230c58282ae63c37f9","abstract_canon_sha256":"7a9d459b841925a696985912ee8b463dd9bada16e7bbb0589af208e82c88948b"},"schema_version":"1.0"},"canonical_sha256":"df53b16f42564d2598037d9173a262142589ff020e7bd9cf2a76eaea20627be1","source":{"kind":"arxiv","id":"2103.03686","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.03686","created_at":"2026-07-05T02:55:41Z"},{"alias_kind":"arxiv_version","alias_value":"2103.03686v1","created_at":"2026-07-05T02:55:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.03686","created_at":"2026-07-05T02:55:41Z"},{"alias_kind":"pith_short_12","alias_value":"35J3C32CKZGS","created_at":"2026-07-05T02:55:41Z"},{"alias_kind":"pith_short_16","alias_value":"35J3C32CKZGSLGAD","created_at":"2026-07-05T02:55:41Z"},{"alias_kind":"pith_short_8","alias_value":"35J3C32C","created_at":"2026-07-05T02:55:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:35J3C32CKZGSLGADPWIXHITCCQ","target":"record","payload":{"canonical_record":{"source":{"id":"2103.03686","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2021-02-14T16:37:48Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"2e64958eb53cf44f9ea8b62709f05f705b7b35fd74220b230c58282ae63c37f9","abstract_canon_sha256":"7a9d459b841925a696985912ee8b463dd9bada16e7bbb0589af208e82c88948b"},"schema_version":"1.0"},"canonical_sha256":"df53b16f42564d2598037d9173a262142589ff020e7bd9cf2a76eaea20627be1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:55:41.724587Z","signature_b64":"hr4o3gWb8VcKfmCSwPXRkBPcrTx0dLpVAJlPEjW9r1KdNCjwrpBES9RVEyYz0/IKJRVyEIwxrbIG98YXKglcDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"df53b16f42564d2598037d9173a262142589ff020e7bd9cf2a76eaea20627be1","last_reissued_at":"2026-07-05T02:55:41.724070Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:55:41.724070Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2103.03686","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":"2026-07-05T02:55:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Gz6yZv+y/Ggk7AEdgqTHhAPEjkFC0cusWw+BOyiGnWnaU2x8zOevz9dd/zDiaWdyUuoaVVC43CRHH0wiNCbIAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-22T08:00:11.582120Z"},"content_sha256":"65d16e09eb0e1176d11f66abaac5240c5ef1e293fdafccf8354a9c1dcd2745a8","schema_version":"1.0","event_id":"sha256:65d16e09eb0e1176d11f66abaac5240c5ef1e293fdafccf8354a9c1dcd2745a8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:35J3C32CKZGSLGADPWIXHITCCQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Bilayer Photonic Graphene","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"physics.app-ph","authors_text":"Guangxu Su, Minghui Lu, Mourad Oudich, Nikhil JRK Gerard, Peng Zhan, Renwen Huang, Wladimir Benalcazar, Yuanchen Deng, Yun Jing","submitted_at":"2021-02-14T16:37:48Z","abstract_excerpt":"Drawing inspiration from bilayer graphene, this paper introduces its photonic analog comprising two stacked graphene-like photonic crystals, that are coupled in the near-field through spoof surface plasmons. Beyond the twist degree of freedom that can radically alter the band structure of the bilayer photonic graphene, the photonic dispersion can be also tailored via the interlayer coupling which exhibits an exponential dependence on the distance between the two photonic crystals. We theoretically, numerically, and experimentally characterize the band structures of AA- and AB-stacked bilayer p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.03686","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2103.03686/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":"2026-07-05T02:55:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GVq86lDt/PhEJe8C4ar5o98SER0TGA1HuSknGCWeKnv6zi2nvKOwSjMZkMoyEJJ8BT2yxpLljFefr0Bm8AFJCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-22T08:00:11.582513Z"},"content_sha256":"b7c2456d59dc84e79c675f3fc9f6fc712aeab875ef19738a2fdceac8b1f39ad6","schema_version":"1.0","event_id":"sha256:b7c2456d59dc84e79c675f3fc9f6fc712aeab875ef19738a2fdceac8b1f39ad6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/35J3C32CKZGSLGADPWIXHITCCQ/bundle.json","state_url":"https://pith.science/pith/35J3C32CKZGSLGADPWIXHITCCQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/35J3C32CKZGSLGADPWIXHITCCQ/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":"2026-07-22T08:00:11Z","links":{"resolver":"https://pith.science/pith/35J3C32CKZGSLGADPWIXHITCCQ","bundle":"https://pith.science/pith/35J3C32CKZGSLGADPWIXHITCCQ/bundle.json","state":"https://pith.science/pith/35J3C32CKZGSLGADPWIXHITCCQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/35J3C32CKZGSLGADPWIXHITCCQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:35J3C32CKZGSLGADPWIXHITCCQ","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":"7a9d459b841925a696985912ee8b463dd9bada16e7bbb0589af208e82c88948b","cross_cats_sorted":["physics.optics"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2021-02-14T16:37:48Z","title_canon_sha256":"2e64958eb53cf44f9ea8b62709f05f705b7b35fd74220b230c58282ae63c37f9"},"schema_version":"1.0","source":{"id":"2103.03686","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.03686","created_at":"2026-07-05T02:55:41Z"},{"alias_kind":"arxiv_version","alias_value":"2103.03686v1","created_at":"2026-07-05T02:55:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.03686","created_at":"2026-07-05T02:55:41Z"},{"alias_kind":"pith_short_12","alias_value":"35J3C32CKZGS","created_at":"2026-07-05T02:55:41Z"},{"alias_kind":"pith_short_16","alias_value":"35J3C32CKZGSLGAD","created_at":"2026-07-05T02:55:41Z"},{"alias_kind":"pith_short_8","alias_value":"35J3C32C","created_at":"2026-07-05T02:55:41Z"}],"graph_snapshots":[{"event_id":"sha256:b7c2456d59dc84e79c675f3fc9f6fc712aeab875ef19738a2fdceac8b1f39ad6","target":"graph","created_at":"2026-07-05T02:55:41Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2103.03686/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Drawing inspiration from bilayer graphene, this paper introduces its photonic analog comprising two stacked graphene-like photonic crystals, that are coupled in the near-field through spoof surface plasmons. Beyond the twist degree of freedom that can radically alter the band structure of the bilayer photonic graphene, the photonic dispersion can be also tailored via the interlayer coupling which exhibits an exponential dependence on the distance between the two photonic crystals. We theoretically, numerically, and experimentally characterize the band structures of AA- and AB-stacked bilayer p","authors_text":"Guangxu Su, Minghui Lu, Mourad Oudich, Nikhil JRK Gerard, Peng Zhan, Renwen Huang, Wladimir Benalcazar, Yuanchen Deng, Yun Jing","cross_cats":["physics.optics"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2021-02-14T16:37:48Z","title":"Bilayer Photonic Graphene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.03686","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":"sha256:65d16e09eb0e1176d11f66abaac5240c5ef1e293fdafccf8354a9c1dcd2745a8","target":"record","created_at":"2026-07-05T02:55:41Z","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":"7a9d459b841925a696985912ee8b463dd9bada16e7bbb0589af208e82c88948b","cross_cats_sorted":["physics.optics"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2021-02-14T16:37:48Z","title_canon_sha256":"2e64958eb53cf44f9ea8b62709f05f705b7b35fd74220b230c58282ae63c37f9"},"schema_version":"1.0","source":{"id":"2103.03686","kind":"arxiv","version":1}},"canonical_sha256":"df53b16f42564d2598037d9173a262142589ff020e7bd9cf2a76eaea20627be1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"df53b16f42564d2598037d9173a262142589ff020e7bd9cf2a76eaea20627be1","first_computed_at":"2026-07-05T02:55:41.724070Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:55:41.724070Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hr4o3gWb8VcKfmCSwPXRkBPcrTx0dLpVAJlPEjW9r1KdNCjwrpBES9RVEyYz0/IKJRVyEIwxrbIG98YXKglcDg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:55:41.724587Z","signed_message":"canonical_sha256_bytes"},"source_id":"2103.03686","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:65d16e09eb0e1176d11f66abaac5240c5ef1e293fdafccf8354a9c1dcd2745a8","sha256:b7c2456d59dc84e79c675f3fc9f6fc712aeab875ef19738a2fdceac8b1f39ad6"],"state_sha256":"7ca5b99ba48032e8cf02af7d37faf66b03f4254da26544b70166d354c242d88f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"J3CIhobUM6UJFYGF4ZhIN2uy5kD7GY9sTfesz3hbjs7cwHBx5QM8CcfnSya+ugbO8BmGf5nO0frrJn6rb+5xAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-22T08:00:11.584719Z","bundle_sha256":"d34bd2c8f2a698830a5d756d5eb36d4f82a8d8b4014d4b1b98f13c94926f02f1"}}