{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:GZ6HYFX5CVK7ZPEPKKED5KBPUO","short_pith_number":"pith:GZ6HYFX5","canonical_record":{"source":{"id":"1808.07468","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-08-21T18:29:34Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"0dd1ddd1dede0757bcd7e62cfbd42cc68b70802716094d0439aad1145f6f5fdc","abstract_canon_sha256":"81ab7fc9a4a22e976f0e0c820ed977247fdcafa2ac3aea24e1b0131d6f7f55c8"},"schema_version":"1.0"},"canonical_sha256":"367c7c16fd1555fcbc8f52883ea82fa39f8a8e8a98fb47dc4eeb4a88c8b9ebdc","source":{"kind":"arxiv","id":"1808.07468","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.07468","created_at":"2026-07-05T11:33:11Z"},{"alias_kind":"arxiv_version","alias_value":"1808.07468v1","created_at":"2026-07-05T11:33:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.07468","created_at":"2026-07-05T11:33:11Z"},{"alias_kind":"pith_short_12","alias_value":"GZ6HYFX5CVK7","created_at":"2026-07-05T11:33:11Z"},{"alias_kind":"pith_short_16","alias_value":"GZ6HYFX5CVK7ZPEP","created_at":"2026-07-05T11:33:11Z"},{"alias_kind":"pith_short_8","alias_value":"GZ6HYFX5","created_at":"2026-07-05T11:33:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:GZ6HYFX5CVK7ZPEPKKED5KBPUO","target":"record","payload":{"canonical_record":{"source":{"id":"1808.07468","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-08-21T18:29:34Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"0dd1ddd1dede0757bcd7e62cfbd42cc68b70802716094d0439aad1145f6f5fdc","abstract_canon_sha256":"81ab7fc9a4a22e976f0e0c820ed977247fdcafa2ac3aea24e1b0131d6f7f55c8"},"schema_version":"1.0"},"canonical_sha256":"367c7c16fd1555fcbc8f52883ea82fa39f8a8e8a98fb47dc4eeb4a88c8b9ebdc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:33:11.519955Z","signature_b64":"Yl7k6aC8mv5/e6CGe5VWFgoX1FuCJ+JJNSEiy5Y8B6XktmR6ndq/d4eMiT8XozvyR07deRKzuBF7ss2CqDB3BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"367c7c16fd1555fcbc8f52883ea82fa39f8a8e8a98fb47dc4eeb4a88c8b9ebdc","last_reissued_at":"2026-07-05T11:33:11.519477Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:33:11.519477Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.07468","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":"2026-07-05T11:33:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+S5LwZh4NG5YrUuWwv7aOEnCY8rDweMzEYBdSp2MDpujDGqrCfXrQvjWGdBKe+LDy6yOMMVZtm73sRnW8B6CBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T13:51:20.024617Z"},"content_sha256":"f0472121545f0b5bc93457fdb2f9ecf36b094f274006b8caf63fedbf73a57df0","schema_version":"1.0","event_id":"sha256:f0472121545f0b5bc93457fdb2f9ecf36b094f274006b8caf63fedbf73a57df0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:GZ6HYFX5CVK7ZPEPKKED5KBPUO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cavity attenuated phase shift Faraday rotation spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"physics.ins-det","authors_text":"Gerard Wysocki, Jonas Westberg, Link Patrick","submitted_at":"2018-08-21T18:29:34Z","abstract_excerpt":"Cavity attenuated phase shift Faraday rotation spectroscopy has been developed and demonstrated by oxygen detection near 762 nm. The system incorporates a high-finesse cavity together with phase-sensitive balanced polarimetric detection for sensitivity enhancement and achieves a minimum detectable polarization rotation angle (1{\\sigma}) of $5.6\\times 10^{-9}$ rad/$\\surd$Hz, which corresponds to an absorption sensitivity of $4.5\\times 10^{-10}$ cm$^{-1}/{\\surd}$Hz without the need for high sampling rate data acquisition."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.07468","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/1808.07468/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":"2026-07-05T11:33:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zPgc3NNM62GCqTvzC0YBGr6RGI+KKFg9XatielOt9eZCYaXtnBM738tGJ6a7QtprKzVQ5TXhHNqoxaGVerW4AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T13:51:20.024981Z"},"content_sha256":"b86ad55e8bf2f1c5a7caf68bb6a30776eda9ff801758b3379ca0f0a1fee1ecd6","schema_version":"1.0","event_id":"sha256:b86ad55e8bf2f1c5a7caf68bb6a30776eda9ff801758b3379ca0f0a1fee1ecd6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GZ6HYFX5CVK7ZPEPKKED5KBPUO/bundle.json","state_url":"https://pith.science/pith/GZ6HYFX5CVK7ZPEPKKED5KBPUO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GZ6HYFX5CVK7ZPEPKKED5KBPUO/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":"2026-07-06T13:51:20Z","links":{"resolver":"https://pith.science/pith/GZ6HYFX5CVK7ZPEPKKED5KBPUO","bundle":"https://pith.science/pith/GZ6HYFX5CVK7ZPEPKKED5KBPUO/bundle.json","state":"https://pith.science/pith/GZ6HYFX5CVK7ZPEPKKED5KBPUO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GZ6HYFX5CVK7ZPEPKKED5KBPUO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:GZ6HYFX5CVK7ZPEPKKED5KBPUO","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":"81ab7fc9a4a22e976f0e0c820ed977247fdcafa2ac3aea24e1b0131d6f7f55c8","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-08-21T18:29:34Z","title_canon_sha256":"0dd1ddd1dede0757bcd7e62cfbd42cc68b70802716094d0439aad1145f6f5fdc"},"schema_version":"1.0","source":{"id":"1808.07468","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.07468","created_at":"2026-07-05T11:33:11Z"},{"alias_kind":"arxiv_version","alias_value":"1808.07468v1","created_at":"2026-07-05T11:33:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.07468","created_at":"2026-07-05T11:33:11Z"},{"alias_kind":"pith_short_12","alias_value":"GZ6HYFX5CVK7","created_at":"2026-07-05T11:33:11Z"},{"alias_kind":"pith_short_16","alias_value":"GZ6HYFX5CVK7ZPEP","created_at":"2026-07-05T11:33:11Z"},{"alias_kind":"pith_short_8","alias_value":"GZ6HYFX5","created_at":"2026-07-05T11:33:11Z"}],"graph_snapshots":[{"event_id":"sha256:b86ad55e8bf2f1c5a7caf68bb6a30776eda9ff801758b3379ca0f0a1fee1ecd6","target":"graph","created_at":"2026-07-05T11:33:11Z","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/1808.07468/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Cavity attenuated phase shift Faraday rotation spectroscopy has been developed and demonstrated by oxygen detection near 762 nm. The system incorporates a high-finesse cavity together with phase-sensitive balanced polarimetric detection for sensitivity enhancement and achieves a minimum detectable polarization rotation angle (1{\\sigma}) of $5.6\\times 10^{-9}$ rad/$\\surd$Hz, which corresponds to an absorption sensitivity of $4.5\\times 10^{-10}$ cm$^{-1}/{\\surd}$Hz without the need for high sampling rate data acquisition.","authors_text":"Gerard Wysocki, Jonas Westberg, Link Patrick","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-08-21T18:29:34Z","title":"Cavity attenuated phase shift Faraday rotation spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.07468","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:f0472121545f0b5bc93457fdb2f9ecf36b094f274006b8caf63fedbf73a57df0","target":"record","created_at":"2026-07-05T11:33:11Z","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":"81ab7fc9a4a22e976f0e0c820ed977247fdcafa2ac3aea24e1b0131d6f7f55c8","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-08-21T18:29:34Z","title_canon_sha256":"0dd1ddd1dede0757bcd7e62cfbd42cc68b70802716094d0439aad1145f6f5fdc"},"schema_version":"1.0","source":{"id":"1808.07468","kind":"arxiv","version":1}},"canonical_sha256":"367c7c16fd1555fcbc8f52883ea82fa39f8a8e8a98fb47dc4eeb4a88c8b9ebdc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"367c7c16fd1555fcbc8f52883ea82fa39f8a8e8a98fb47dc4eeb4a88c8b9ebdc","first_computed_at":"2026-07-05T11:33:11.519477Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:33:11.519477Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Yl7k6aC8mv5/e6CGe5VWFgoX1FuCJ+JJNSEiy5Y8B6XktmR6ndq/d4eMiT8XozvyR07deRKzuBF7ss2CqDB3BA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:33:11.519955Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.07468","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f0472121545f0b5bc93457fdb2f9ecf36b094f274006b8caf63fedbf73a57df0","sha256:b86ad55e8bf2f1c5a7caf68bb6a30776eda9ff801758b3379ca0f0a1fee1ecd6"],"state_sha256":"6528037438f3072341196144f4701ff13d9b3d9733376aa36969b2988efb89e1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"up/zE1SYZgJ1jvVSedA11kkyY902OArFmhkAz1lQiwflkI59zazClf2mM6x7213/J31dCjfN3Xg/fOCv5t3oBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T13:51:20.026927Z","bundle_sha256":"049a76e08d994cc6d5e1dc1c48717cb91023b1dd1354ccfbcc1eb4e58de11e51"}}