{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:TMZF4W3YVRX4RWEAHX6AJZKEM3","short_pith_number":"pith:TMZF4W3Y","canonical_record":{"source":{"id":"1703.09248","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-03-27T18:16:56Z","cross_cats_sorted":[],"title_canon_sha256":"acdc59d1e848f77ddc91f275f2f05f58c0664ad97f81c64959cf9b43b1f7447c","abstract_canon_sha256":"863154705c961f1812996fcdacd717289dbd81b51c5f4375f57dd9c99914013d"},"schema_version":"1.0"},"canonical_sha256":"9b325e5b78ac6fc8d8803dfc04e54466da35147b6215d0161e5621fc2c68ef2b","source":{"kind":"arxiv","id":"1703.09248","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.09248","created_at":"2026-05-18T00:38:56Z"},{"alias_kind":"arxiv_version","alias_value":"1703.09248v2","created_at":"2026-05-18T00:38:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.09248","created_at":"2026-05-18T00:38:56Z"},{"alias_kind":"pith_short_12","alias_value":"TMZF4W3YVRX4","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_16","alias_value":"TMZF4W3YVRX4RWEA","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_8","alias_value":"TMZF4W3Y","created_at":"2026-05-18T12:31:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:TMZF4W3YVRX4RWEAHX6AJZKEM3","target":"record","payload":{"canonical_record":{"source":{"id":"1703.09248","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-03-27T18:16:56Z","cross_cats_sorted":[],"title_canon_sha256":"acdc59d1e848f77ddc91f275f2f05f58c0664ad97f81c64959cf9b43b1f7447c","abstract_canon_sha256":"863154705c961f1812996fcdacd717289dbd81b51c5f4375f57dd9c99914013d"},"schema_version":"1.0"},"canonical_sha256":"9b325e5b78ac6fc8d8803dfc04e54466da35147b6215d0161e5621fc2c68ef2b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:38:56.272189Z","signature_b64":"6QGngm/ERuFNu67dRgdhu1M0LIKSP+CYM7wqIPR0d6UmaSLS8cD6Ic2DHe/pT5CkwSUjM1k6XgpmGACw+HVrCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9b325e5b78ac6fc8d8803dfc04e54466da35147b6215d0161e5621fc2c68ef2b","last_reissued_at":"2026-05-18T00:38:56.271500Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:38:56.271500Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1703.09248","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":"2026-05-18T00:38:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UYVHmHyAC6mx0ka+v0R1s7uQPkANFUgnIhlC7S/yzpGVYgznkfGmwB7NVBjgrtML/BXXPgxHDyqkoNpWp5DhDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T06:55:54.353783Z"},"content_sha256":"b433cadad6074756e49464b630f0589d7948a9d8c9dc9e03f1b06b79d5ad3f0d","schema_version":"1.0","event_id":"sha256:b433cadad6074756e49464b630f0589d7948a9d8c9dc9e03f1b06b79d5ad3f0d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:TMZF4W3YVRX4RWEAHX6AJZKEM3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Topological photonics: from crystals to particles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Gleb Siroki, Paloma Arroyo Huidobro, Vincenzo Giannini","submitted_at":"2017-03-27T18:16:56Z","abstract_excerpt":"Photonic crystal topological insulators host protected states at their edges. In the band structure these edge states appear as continuous bands crossing the photonic band gap. They allow light to propagate unidirectionally and without scattering. In practice it is essential to make devices relying on these effects as miniature as possible. Here we study all-dielectric photonic topological insulator particles (finite crystals) which do not require a magnetic field. In such particles the edge states' frequencies are discrete. Nevertheless, the discrete states support pseudospin-dependent unidir"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.09248","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":"2026-05-18T00:38:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+UP+Qn/vJsAtS0IaU/VBAMlx26xT+RfKdOz/X2Er0a2AyE/BkIijBDHCbMWPjChFvl2tJfOjNLpqJBQk4pNgDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T06:55:54.354554Z"},"content_sha256":"6e490fbba77ca2f48a850f65b45dc4bd13d7470716733dc2d0a9153d58fef452","schema_version":"1.0","event_id":"sha256:6e490fbba77ca2f48a850f65b45dc4bd13d7470716733dc2d0a9153d58fef452"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TMZF4W3YVRX4RWEAHX6AJZKEM3/bundle.json","state_url":"https://pith.science/pith/TMZF4W3YVRX4RWEAHX6AJZKEM3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TMZF4W3YVRX4RWEAHX6AJZKEM3/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":"2026-05-26T06:55:54Z","links":{"resolver":"https://pith.science/pith/TMZF4W3YVRX4RWEAHX6AJZKEM3","bundle":"https://pith.science/pith/TMZF4W3YVRX4RWEAHX6AJZKEM3/bundle.json","state":"https://pith.science/pith/TMZF4W3YVRX4RWEAHX6AJZKEM3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TMZF4W3YVRX4RWEAHX6AJZKEM3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:TMZF4W3YVRX4RWEAHX6AJZKEM3","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":"863154705c961f1812996fcdacd717289dbd81b51c5f4375f57dd9c99914013d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-03-27T18:16:56Z","title_canon_sha256":"acdc59d1e848f77ddc91f275f2f05f58c0664ad97f81c64959cf9b43b1f7447c"},"schema_version":"1.0","source":{"id":"1703.09248","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.09248","created_at":"2026-05-18T00:38:56Z"},{"alias_kind":"arxiv_version","alias_value":"1703.09248v2","created_at":"2026-05-18T00:38:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.09248","created_at":"2026-05-18T00:38:56Z"},{"alias_kind":"pith_short_12","alias_value":"TMZF4W3YVRX4","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_16","alias_value":"TMZF4W3YVRX4RWEA","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_8","alias_value":"TMZF4W3Y","created_at":"2026-05-18T12:31:46Z"}],"graph_snapshots":[{"event_id":"sha256:6e490fbba77ca2f48a850f65b45dc4bd13d7470716733dc2d0a9153d58fef452","target":"graph","created_at":"2026-05-18T00:38:56Z","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":"Photonic crystal topological insulators host protected states at their edges. In the band structure these edge states appear as continuous bands crossing the photonic band gap. They allow light to propagate unidirectionally and without scattering. In practice it is essential to make devices relying on these effects as miniature as possible. Here we study all-dielectric photonic topological insulator particles (finite crystals) which do not require a magnetic field. In such particles the edge states' frequencies are discrete. Nevertheless, the discrete states support pseudospin-dependent unidir","authors_text":"Gleb Siroki, Paloma Arroyo Huidobro, Vincenzo Giannini","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-03-27T18:16:56Z","title":"Topological photonics: from crystals to particles"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.09248","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:b433cadad6074756e49464b630f0589d7948a9d8c9dc9e03f1b06b79d5ad3f0d","target":"record","created_at":"2026-05-18T00:38:56Z","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":"863154705c961f1812996fcdacd717289dbd81b51c5f4375f57dd9c99914013d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-03-27T18:16:56Z","title_canon_sha256":"acdc59d1e848f77ddc91f275f2f05f58c0664ad97f81c64959cf9b43b1f7447c"},"schema_version":"1.0","source":{"id":"1703.09248","kind":"arxiv","version":2}},"canonical_sha256":"9b325e5b78ac6fc8d8803dfc04e54466da35147b6215d0161e5621fc2c68ef2b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9b325e5b78ac6fc8d8803dfc04e54466da35147b6215d0161e5621fc2c68ef2b","first_computed_at":"2026-05-18T00:38:56.271500Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:38:56.271500Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6QGngm/ERuFNu67dRgdhu1M0LIKSP+CYM7wqIPR0d6UmaSLS8cD6Ic2DHe/pT5CkwSUjM1k6XgpmGACw+HVrCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:38:56.272189Z","signed_message":"canonical_sha256_bytes"},"source_id":"1703.09248","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b433cadad6074756e49464b630f0589d7948a9d8c9dc9e03f1b06b79d5ad3f0d","sha256:6e490fbba77ca2f48a850f65b45dc4bd13d7470716733dc2d0a9153d58fef452"],"state_sha256":"bb9a0de9bef0e0c06c3735fa963fe01219e70a961a8acaf1d1b325f09ee260d9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jTg1+QXDs8C8JfiKT/HDu4DUFLEljWpFr7J+V4/ivvNVt5Jsk9oSmG1/+Mwy1IhqTcesXrQbR1GEGIxhAfnjCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T06:55:54.358927Z","bundle_sha256":"28a2aeac5e6e472ae0e920a5db9622d3b272e195cb66191ae066aef63107893e"}}