{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:ZW2MBPBCHOY7UTMUMMW3XPLQVG","short_pith_number":"pith:ZW2MBPBC","canonical_record":{"source":{"id":"1907.05207","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-07-11T14:02:43Z","cross_cats_sorted":[],"title_canon_sha256":"d830ba242b906f35c4f494189c862a9557f0e7699c0a41f78699a14d82a8eb2a","abstract_canon_sha256":"dd2742f38e55a0b56af6f4f6739b507d2b1873a419db836c7c5087922c151449"},"schema_version":"1.0"},"canonical_sha256":"cdb4c0bc223bb1fa4d94632dbbbd70a98b887119c7a9fb1e3828ed27ef5e98e2","source":{"kind":"arxiv","id":"1907.05207","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.05207","created_at":"2026-07-05T00:36:28Z"},{"alias_kind":"arxiv_version","alias_value":"1907.05207v2","created_at":"2026-07-05T00:36:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.05207","created_at":"2026-07-05T00:36:28Z"},{"alias_kind":"pith_short_12","alias_value":"ZW2MBPBCHOY7","created_at":"2026-07-05T00:36:28Z"},{"alias_kind":"pith_short_16","alias_value":"ZW2MBPBCHOY7UTMU","created_at":"2026-07-05T00:36:28Z"},{"alias_kind":"pith_short_8","alias_value":"ZW2MBPBC","created_at":"2026-07-05T00:36:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:ZW2MBPBCHOY7UTMUMMW3XPLQVG","target":"record","payload":{"canonical_record":{"source":{"id":"1907.05207","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-07-11T14:02:43Z","cross_cats_sorted":[],"title_canon_sha256":"d830ba242b906f35c4f494189c862a9557f0e7699c0a41f78699a14d82a8eb2a","abstract_canon_sha256":"dd2742f38e55a0b56af6f4f6739b507d2b1873a419db836c7c5087922c151449"},"schema_version":"1.0"},"canonical_sha256":"cdb4c0bc223bb1fa4d94632dbbbd70a98b887119c7a9fb1e3828ed27ef5e98e2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:36:28.044882Z","signature_b64":"BScPlVWGCa9E35ergx8t7eECHTr5B7iVXY0vLgp0nw1mSBmpFtZVV3Jk/SBTX4gvJ0M5XIeWg3ghOWkIkOf3Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cdb4c0bc223bb1fa4d94632dbbbd70a98b887119c7a9fb1e3828ed27ef5e98e2","last_reissued_at":"2026-07-05T00:36:28.044342Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:36:28.044342Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.05207","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":"2026-07-05T00:36:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LBpsfO1P4Mo3H2GFD69AEJTkfbS202R2+z8s4z6JYui4L3jQ+VSUA2c6KabIfJ2b7QKkFvoDjuV3gFkI9yZyAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-09T06:18:34.834834Z"},"content_sha256":"0128e553f54d51523051371184d9c4ed2ec59afda33fa6471cbdc4070d7e3c0a","schema_version":"1.0","event_id":"sha256:0128e553f54d51523051371184d9c4ed2ec59afda33fa6471cbdc4070d7e3c0a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:ZW2MBPBCHOY7UTMUMMW3XPLQVG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Helicity-preserving optical cavity modes for enhanced sensing of chiral molecules","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Carsten Rockstuhl, Dominik Beutel, Ivan Fernandez-Corbaton, Joshua Feis, Julian K\\\"opfler, Martin Wegener, Xavier Garcia-Santiago","submitted_at":"2019-07-11T14:02:43Z","abstract_excerpt":"Researchers routinely sense molecules by their infrared vibrational \"fingerprint\" absorption resonances. In addition, the dominant handedness of chiral molecules can be detected by circular dichroism (CD), the normalized difference between their optical response to incident left- and right- handed circularly polarized light. Here, we introduce a cavity composed of two parallel arrays of helicity-preserving silicon disks that allows to enhance the CD signal by more than two orders of magnitude for a given molecule concentration and given thickness of the cell containing the molecules. The under"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.05207","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1907.05207/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":"2026-07-05T00:36:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cLvmzVigCjowT0fBEkrZ9sf4I6or98o8BaNMLezyAOzf3fv7iL673bk52oKmJaEOrSxnQetpjKnWLDBGp+2IDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-09T06:18:34.835219Z"},"content_sha256":"cdb6c9d18cfb269495479011f805903bd7a20d604d2124ef256052ea028bac4f","schema_version":"1.0","event_id":"sha256:cdb6c9d18cfb269495479011f805903bd7a20d604d2124ef256052ea028bac4f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZW2MBPBCHOY7UTMUMMW3XPLQVG/bundle.json","state_url":"https://pith.science/pith/ZW2MBPBCHOY7UTMUMMW3XPLQVG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZW2MBPBCHOY7UTMUMMW3XPLQVG/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":"2026-07-09T06:18:34Z","links":{"resolver":"https://pith.science/pith/ZW2MBPBCHOY7UTMUMMW3XPLQVG","bundle":"https://pith.science/pith/ZW2MBPBCHOY7UTMUMMW3XPLQVG/bundle.json","state":"https://pith.science/pith/ZW2MBPBCHOY7UTMUMMW3XPLQVG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZW2MBPBCHOY7UTMUMMW3XPLQVG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:ZW2MBPBCHOY7UTMUMMW3XPLQVG","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":"dd2742f38e55a0b56af6f4f6739b507d2b1873a419db836c7c5087922c151449","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-07-11T14:02:43Z","title_canon_sha256":"d830ba242b906f35c4f494189c862a9557f0e7699c0a41f78699a14d82a8eb2a"},"schema_version":"1.0","source":{"id":"1907.05207","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.05207","created_at":"2026-07-05T00:36:28Z"},{"alias_kind":"arxiv_version","alias_value":"1907.05207v2","created_at":"2026-07-05T00:36:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.05207","created_at":"2026-07-05T00:36:28Z"},{"alias_kind":"pith_short_12","alias_value":"ZW2MBPBCHOY7","created_at":"2026-07-05T00:36:28Z"},{"alias_kind":"pith_short_16","alias_value":"ZW2MBPBCHOY7UTMU","created_at":"2026-07-05T00:36:28Z"},{"alias_kind":"pith_short_8","alias_value":"ZW2MBPBC","created_at":"2026-07-05T00:36:28Z"}],"graph_snapshots":[{"event_id":"sha256:cdb6c9d18cfb269495479011f805903bd7a20d604d2124ef256052ea028bac4f","target":"graph","created_at":"2026-07-05T00:36:28Z","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/1907.05207/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Researchers routinely sense molecules by their infrared vibrational \"fingerprint\" absorption resonances. In addition, the dominant handedness of chiral molecules can be detected by circular dichroism (CD), the normalized difference between their optical response to incident left- and right- handed circularly polarized light. Here, we introduce a cavity composed of two parallel arrays of helicity-preserving silicon disks that allows to enhance the CD signal by more than two orders of magnitude for a given molecule concentration and given thickness of the cell containing the molecules. The under","authors_text":"Carsten Rockstuhl, Dominik Beutel, Ivan Fernandez-Corbaton, Joshua Feis, Julian K\\\"opfler, Martin Wegener, Xavier Garcia-Santiago","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-07-11T14:02:43Z","title":"Helicity-preserving optical cavity modes for enhanced sensing of chiral molecules"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.05207","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":"sha256:0128e553f54d51523051371184d9c4ed2ec59afda33fa6471cbdc4070d7e3c0a","target":"record","created_at":"2026-07-05T00:36:28Z","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":"dd2742f38e55a0b56af6f4f6739b507d2b1873a419db836c7c5087922c151449","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-07-11T14:02:43Z","title_canon_sha256":"d830ba242b906f35c4f494189c862a9557f0e7699c0a41f78699a14d82a8eb2a"},"schema_version":"1.0","source":{"id":"1907.05207","kind":"arxiv","version":2}},"canonical_sha256":"cdb4c0bc223bb1fa4d94632dbbbd70a98b887119c7a9fb1e3828ed27ef5e98e2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cdb4c0bc223bb1fa4d94632dbbbd70a98b887119c7a9fb1e3828ed27ef5e98e2","first_computed_at":"2026-07-05T00:36:28.044342Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:36:28.044342Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BScPlVWGCa9E35ergx8t7eECHTr5B7iVXY0vLgp0nw1mSBmpFtZVV3Jk/SBTX4gvJ0M5XIeWg3ghOWkIkOf3Bg==","signature_status":"signed_v1","signed_at":"2026-07-05T00:36:28.044882Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.05207","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0128e553f54d51523051371184d9c4ed2ec59afda33fa6471cbdc4070d7e3c0a","sha256:cdb6c9d18cfb269495479011f805903bd7a20d604d2124ef256052ea028bac4f"],"state_sha256":"4f6b2de4537a6c0b9632913f7607677bff19ffac2e0bc46b851dce1214461fd9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SBhXuFtz4mT4O5vUjfX/F3XPfh3KbEkJ/6Q6GoP57Zy1dna6oPT7Go9QZ44ZHNb9lSs8zLYY5hTNReQ8F6i1BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-09T06:18:34.838486Z","bundle_sha256":"5eefb11f737967fd992cb4671fd90141dfcbd179336eab3cdabfafe1082ab661"}}