{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:3N6SXUXD74VWNYS3AXSUHBS4PD","short_pith_number":"pith:3N6SXUXD","canonical_record":{"source":{"id":"1604.04923","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-04-17T20:43:52Z","cross_cats_sorted":[],"title_canon_sha256":"79abc489e790418818ec7e21f1e895d6efa6699cb6b7620fb16270be55c1c4a3","abstract_canon_sha256":"e936993c48a09f9ffdd8d21859737f8bab104e276fc787348bc1c130e1202aa2"},"schema_version":"1.0"},"canonical_sha256":"db7d2bd2e3ff2b66e25b05e543865c78c7ffc27495383104bb1bc8ed7821e636","source":{"kind":"arxiv","id":"1604.04923","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.04923","created_at":"2026-05-18T01:10:05Z"},{"alias_kind":"arxiv_version","alias_value":"1604.04923v1","created_at":"2026-05-18T01:10:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.04923","created_at":"2026-05-18T01:10:05Z"},{"alias_kind":"pith_short_12","alias_value":"3N6SXUXD74VW","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_16","alias_value":"3N6SXUXD74VWNYS3","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_8","alias_value":"3N6SXUXD","created_at":"2026-05-18T12:29:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:3N6SXUXD74VWNYS3AXSUHBS4PD","target":"record","payload":{"canonical_record":{"source":{"id":"1604.04923","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-04-17T20:43:52Z","cross_cats_sorted":[],"title_canon_sha256":"79abc489e790418818ec7e21f1e895d6efa6699cb6b7620fb16270be55c1c4a3","abstract_canon_sha256":"e936993c48a09f9ffdd8d21859737f8bab104e276fc787348bc1c130e1202aa2"},"schema_version":"1.0"},"canonical_sha256":"db7d2bd2e3ff2b66e25b05e543865c78c7ffc27495383104bb1bc8ed7821e636","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:10:05.704865Z","signature_b64":"ITzuWN/9ImsvM8FVve0oeg0kF6VgYZSwWzQqlZtzxTP7bTG6x8L6tWlAXF5JOEkvzuXSRBQCa49l64cJAVbIDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"db7d2bd2e3ff2b66e25b05e543865c78c7ffc27495383104bb1bc8ed7821e636","last_reissued_at":"2026-05-18T01:10:05.704152Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:10:05.704152Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1604.04923","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":"2026-05-18T01:10:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"peShkm0262EtLKRwXvj7sMM0fC1YE6wMx6/ESnKV95D7IwrtnMiXqfIU53nV29mbLjhNJkHPYzfhwulfNtwtAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T18:43:36.311082Z"},"content_sha256":"fbfad1f59a1bc9aab0086babc36a075b3537b9b3d6e2d95c4627651bd98baf53","schema_version":"1.0","event_id":"sha256:fbfad1f59a1bc9aab0086babc36a075b3537b9b3d6e2d95c4627651bd98baf53"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:3N6SXUXD74VWNYS3AXSUHBS4PD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Berry phase of light Bragg-reflected by chiral liquid crystal media","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Marcel G. Clerc, Raouf Barboza, Stefania Residori, Umberto Bortolozzo","submitted_at":"2016-04-17T20:43:52Z","abstract_excerpt":"Berry phase is revealed for circularly polarized light when it is Bragg-reflected by a chiral liquid crystal medium of the same handedness. By using a chiral nematic layer we demonstrate that if the input plane of the layer is rotated with respect to a fixed reference frame, then, a geometric phase effect occurs for the circularly polarized light reflected by the periodic helical structure of the medium. Theory and numerical simulations are supported by an experimental observation, disclosing novel applications in the field of optical manipulation and fundamental optical phenomena."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.04923","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":"2026-05-18T01:10:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SzBX9F+7aAHevJhfoM8LXz/C7unznqRSURMOf5f9ayEqLnSemfeEiUThDZe1ZtInUoCyl035i9eYYfqbSGGsCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T18:43:36.311449Z"},"content_sha256":"0607b6ee9f5dcd878827643b99a9a42ed8a13e34aeff925b3ea580abd6fdf7fe","schema_version":"1.0","event_id":"sha256:0607b6ee9f5dcd878827643b99a9a42ed8a13e34aeff925b3ea580abd6fdf7fe"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3N6SXUXD74VWNYS3AXSUHBS4PD/bundle.json","state_url":"https://pith.science/pith/3N6SXUXD74VWNYS3AXSUHBS4PD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3N6SXUXD74VWNYS3AXSUHBS4PD/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":"2026-06-01T18:43:36Z","links":{"resolver":"https://pith.science/pith/3N6SXUXD74VWNYS3AXSUHBS4PD","bundle":"https://pith.science/pith/3N6SXUXD74VWNYS3AXSUHBS4PD/bundle.json","state":"https://pith.science/pith/3N6SXUXD74VWNYS3AXSUHBS4PD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3N6SXUXD74VWNYS3AXSUHBS4PD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:3N6SXUXD74VWNYS3AXSUHBS4PD","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":"e936993c48a09f9ffdd8d21859737f8bab104e276fc787348bc1c130e1202aa2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-04-17T20:43:52Z","title_canon_sha256":"79abc489e790418818ec7e21f1e895d6efa6699cb6b7620fb16270be55c1c4a3"},"schema_version":"1.0","source":{"id":"1604.04923","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.04923","created_at":"2026-05-18T01:10:05Z"},{"alias_kind":"arxiv_version","alias_value":"1604.04923v1","created_at":"2026-05-18T01:10:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.04923","created_at":"2026-05-18T01:10:05Z"},{"alias_kind":"pith_short_12","alias_value":"3N6SXUXD74VW","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_16","alias_value":"3N6SXUXD74VWNYS3","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_8","alias_value":"3N6SXUXD","created_at":"2026-05-18T12:29:55Z"}],"graph_snapshots":[{"event_id":"sha256:0607b6ee9f5dcd878827643b99a9a42ed8a13e34aeff925b3ea580abd6fdf7fe","target":"graph","created_at":"2026-05-18T01:10:05Z","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":"Berry phase is revealed for circularly polarized light when it is Bragg-reflected by a chiral liquid crystal medium of the same handedness. By using a chiral nematic layer we demonstrate that if the input plane of the layer is rotated with respect to a fixed reference frame, then, a geometric phase effect occurs for the circularly polarized light reflected by the periodic helical structure of the medium. Theory and numerical simulations are supported by an experimental observation, disclosing novel applications in the field of optical manipulation and fundamental optical phenomena.","authors_text":"Marcel G. Clerc, Raouf Barboza, Stefania Residori, Umberto Bortolozzo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-04-17T20:43:52Z","title":"Berry phase of light Bragg-reflected by chiral liquid crystal media"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.04923","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:fbfad1f59a1bc9aab0086babc36a075b3537b9b3d6e2d95c4627651bd98baf53","target":"record","created_at":"2026-05-18T01:10:05Z","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":"e936993c48a09f9ffdd8d21859737f8bab104e276fc787348bc1c130e1202aa2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-04-17T20:43:52Z","title_canon_sha256":"79abc489e790418818ec7e21f1e895d6efa6699cb6b7620fb16270be55c1c4a3"},"schema_version":"1.0","source":{"id":"1604.04923","kind":"arxiv","version":1}},"canonical_sha256":"db7d2bd2e3ff2b66e25b05e543865c78c7ffc27495383104bb1bc8ed7821e636","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"db7d2bd2e3ff2b66e25b05e543865c78c7ffc27495383104bb1bc8ed7821e636","first_computed_at":"2026-05-18T01:10:05.704152Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:10:05.704152Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ITzuWN/9ImsvM8FVve0oeg0kF6VgYZSwWzQqlZtzxTP7bTG6x8L6tWlAXF5JOEkvzuXSRBQCa49l64cJAVbIDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:10:05.704865Z","signed_message":"canonical_sha256_bytes"},"source_id":"1604.04923","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fbfad1f59a1bc9aab0086babc36a075b3537b9b3d6e2d95c4627651bd98baf53","sha256:0607b6ee9f5dcd878827643b99a9a42ed8a13e34aeff925b3ea580abd6fdf7fe"],"state_sha256":"6efbb1766d5bd8ba70dde46220f3e10e2d377faa3c97bbdd60c9c7c847f28ab1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5Nt0gKDp3wN5mwDk0LGtzZ0nMhVvCsip99gk96zwxql8h9Ui9t25PKDgVgyIXieeSX7RMG4LH56ORtxZANC0Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T18:43:36.313517Z","bundle_sha256":"d7fd2889287baded77aead21af942b8cd1cfecce2257385c7827cdc05b2f12a2"}}