{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:75E3H3BIB64BVF5SVWOFQOLXXU","short_pith_number":"pith:75E3H3BI","canonical_record":{"source":{"id":"1802.04173","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-02-12T16:40:43Z","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.quant-gas","quant-ph"],"title_canon_sha256":"789a7ab006f2567a2b4901f102bf77924683a31ef084beb5f650e66827efe30d","abstract_canon_sha256":"bcc05ae9fc8fc5b98da3e4b5d630f963dbb2eda6dc5a1a5f932d4cf72e631e28"},"schema_version":"1.0"},"canonical_sha256":"ff49b3ec280fb81a97b2ad9c583977bd10aa17f11bb0b7215ca0788dcc062093","source":{"kind":"arxiv","id":"1802.04173","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.04173","created_at":"2026-05-17T23:49:44Z"},{"alias_kind":"arxiv_version","alias_value":"1802.04173v2","created_at":"2026-05-17T23:49:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.04173","created_at":"2026-05-17T23:49:44Z"},{"alias_kind":"pith_short_12","alias_value":"75E3H3BIB64B","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"75E3H3BIB64BVF5S","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"75E3H3BI","created_at":"2026-05-18T12:32:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:75E3H3BIB64BVF5SVWOFQOLXXU","target":"record","payload":{"canonical_record":{"source":{"id":"1802.04173","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-02-12T16:40:43Z","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.quant-gas","quant-ph"],"title_canon_sha256":"789a7ab006f2567a2b4901f102bf77924683a31ef084beb5f650e66827efe30d","abstract_canon_sha256":"bcc05ae9fc8fc5b98da3e4b5d630f963dbb2eda6dc5a1a5f932d4cf72e631e28"},"schema_version":"1.0"},"canonical_sha256":"ff49b3ec280fb81a97b2ad9c583977bd10aa17f11bb0b7215ca0788dcc062093","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:49:44.096817Z","signature_b64":"3IvoALNBEV625EUsias1lvvH6hDdrP9KesHfoEmPZh0O/JN/okCBgrYV2lYHd9pfKYuFG3WauvB9nmCmWVarBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ff49b3ec280fb81a97b2ad9c583977bd10aa17f11bb0b7215ca0788dcc062093","last_reissued_at":"2026-05-17T23:49:44.096373Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:49:44.096373Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.04173","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":"2026-05-17T23:49:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f9lDE9opWz3HLj74aU3IDksW2PUZvVJ7f6brOYwWapn8o54p7y4gzT1gVOCf3XFdIh1eg/9ePchLFME/O0DrAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T21:17:44.080419Z"},"content_sha256":"1432a68d5d303e3106cc1236da287dbe5adec18036fe47338cc739e7ab1510ce","schema_version":"1.0","event_id":"sha256:1432a68d5d303e3106cc1236da287dbe5adec18036fe47338cc739e7ab1510ce"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:75E3H3BIB64BVF5SVWOFQOLXXU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Topological Photonics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","cond-mat.quant-gas","quant-ph"],"primary_cat":"physics.optics","authors_text":"Alberto Amo, David Schuster, Hannah M. Price, Iacopo Carusotto, Jonathan Simon, Ling Lu, Mikael Rechtsman, Mohammad Hafezi, Nathan Goldman, Oded Zilberberg, Tomoki Ozawa","submitted_at":"2018-02-12T16:40:43Z","abstract_excerpt":"Topological photonics is a rapidly emerging field of research in which geometrical and topological ideas are exploited to design and control the behavior of light. Drawing inspiration from the discovery of the quantum Hall effects and topological insulators in condensed matter, recent advances have shown how to engineer analogous effects also for photons, leading to remarkable phenomena such as the robust unidirectional propagation of light, which hold great promise for applications. Thanks to the flexibility and diversity of photonics systems, this field is also opening up new opportunities t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.04173","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":"2026-05-17T23:49:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w4mrMiWQt5sXd6fN++DnEVyC6xSsMHhfexcA2n0/zxpGTgwUJnEiUqdduvo6bhd09egYn3D6s3XpdO/eIUevDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T21:17:44.080773Z"},"content_sha256":"c86a5ad3b0227d6c561ae74e0fae7761bd8731d5de645e722954b3595560f736","schema_version":"1.0","event_id":"sha256:c86a5ad3b0227d6c561ae74e0fae7761bd8731d5de645e722954b3595560f736"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/75E3H3BIB64BVF5SVWOFQOLXXU/bundle.json","state_url":"https://pith.science/pith/75E3H3BIB64BVF5SVWOFQOLXXU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/75E3H3BIB64BVF5SVWOFQOLXXU/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":"2026-05-30T21:17:44Z","links":{"resolver":"https://pith.science/pith/75E3H3BIB64BVF5SVWOFQOLXXU","bundle":"https://pith.science/pith/75E3H3BIB64BVF5SVWOFQOLXXU/bundle.json","state":"https://pith.science/pith/75E3H3BIB64BVF5SVWOFQOLXXU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/75E3H3BIB64BVF5SVWOFQOLXXU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:75E3H3BIB64BVF5SVWOFQOLXXU","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":"bcc05ae9fc8fc5b98da3e4b5d630f963dbb2eda6dc5a1a5f932d4cf72e631e28","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.quant-gas","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-02-12T16:40:43Z","title_canon_sha256":"789a7ab006f2567a2b4901f102bf77924683a31ef084beb5f650e66827efe30d"},"schema_version":"1.0","source":{"id":"1802.04173","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.04173","created_at":"2026-05-17T23:49:44Z"},{"alias_kind":"arxiv_version","alias_value":"1802.04173v2","created_at":"2026-05-17T23:49:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.04173","created_at":"2026-05-17T23:49:44Z"},{"alias_kind":"pith_short_12","alias_value":"75E3H3BIB64B","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"75E3H3BIB64BVF5S","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"75E3H3BI","created_at":"2026-05-18T12:32:11Z"}],"graph_snapshots":[{"event_id":"sha256:c86a5ad3b0227d6c561ae74e0fae7761bd8731d5de645e722954b3595560f736","target":"graph","created_at":"2026-05-17T23:49:44Z","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":"Topological photonics is a rapidly emerging field of research in which geometrical and topological ideas are exploited to design and control the behavior of light. Drawing inspiration from the discovery of the quantum Hall effects and topological insulators in condensed matter, recent advances have shown how to engineer analogous effects also for photons, leading to remarkable phenomena such as the robust unidirectional propagation of light, which hold great promise for applications. Thanks to the flexibility and diversity of photonics systems, this field is also opening up new opportunities t","authors_text":"Alberto Amo, David Schuster, Hannah M. Price, Iacopo Carusotto, Jonathan Simon, Ling Lu, Mikael Rechtsman, Mohammad Hafezi, Nathan Goldman, Oded Zilberberg, Tomoki Ozawa","cross_cats":["cond-mat.mes-hall","cond-mat.quant-gas","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-02-12T16:40:43Z","title":"Topological Photonics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.04173","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":"sha256:1432a68d5d303e3106cc1236da287dbe5adec18036fe47338cc739e7ab1510ce","target":"record","created_at":"2026-05-17T23:49:44Z","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":"bcc05ae9fc8fc5b98da3e4b5d630f963dbb2eda6dc5a1a5f932d4cf72e631e28","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.quant-gas","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-02-12T16:40:43Z","title_canon_sha256":"789a7ab006f2567a2b4901f102bf77924683a31ef084beb5f650e66827efe30d"},"schema_version":"1.0","source":{"id":"1802.04173","kind":"arxiv","version":2}},"canonical_sha256":"ff49b3ec280fb81a97b2ad9c583977bd10aa17f11bb0b7215ca0788dcc062093","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ff49b3ec280fb81a97b2ad9c583977bd10aa17f11bb0b7215ca0788dcc062093","first_computed_at":"2026-05-17T23:49:44.096373Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:49:44.096373Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3IvoALNBEV625EUsias1lvvH6hDdrP9KesHfoEmPZh0O/JN/okCBgrYV2lYHd9pfKYuFG3WauvB9nmCmWVarBA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:49:44.096817Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.04173","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1432a68d5d303e3106cc1236da287dbe5adec18036fe47338cc739e7ab1510ce","sha256:c86a5ad3b0227d6c561ae74e0fae7761bd8731d5de645e722954b3595560f736"],"state_sha256":"f5eb5900c5adcc5e79c092cf8c97f4576d0149df6e654d0ab366ce1baded9beb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tjmYmg88737E90p0SdJ7Io0vzp1xgyXMkd1gCAJLLUNtK3lXBO0Xipn31SgT4pNQxRsa9NSj/1XuI6z+0bY8Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T21:17:44.082818Z","bundle_sha256":"e4a1f1da9688b913d55255ff2c70bcae3df00f498c33e540eed864004d0b430d"}}