{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:TXXBQUAF5GVLH5F5O5UOORLL5C","short_pith_number":"pith:TXXBQUAF","canonical_record":{"source":{"id":"2202.10896","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2022-02-22T13:50:21Z","cross_cats_sorted":[],"title_canon_sha256":"ac7a6807dad313e8fa8d740ed55ba614ab02dc795bb7713969165b29a4f1b2d7","abstract_canon_sha256":"de5902019681db4612d02b665cffbcaf184a1d711d559afda8e222d7f5a31955"},"schema_version":"1.0"},"canonical_sha256":"9dee185005e9aab3f4bd7768e7456be8952526f7be3b817c6a566d44e6906fbd","source":{"kind":"arxiv","id":"2202.10896","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2202.10896","created_at":"2026-07-05T05:25:00Z"},{"alias_kind":"arxiv_version","alias_value":"2202.10896v2","created_at":"2026-07-05T05:25:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.10896","created_at":"2026-07-05T05:25:00Z"},{"alias_kind":"pith_short_12","alias_value":"TXXBQUAF5GVL","created_at":"2026-07-05T05:25:00Z"},{"alias_kind":"pith_short_16","alias_value":"TXXBQUAF5GVLH5F5","created_at":"2026-07-05T05:25:00Z"},{"alias_kind":"pith_short_8","alias_value":"TXXBQUAF","created_at":"2026-07-05T05:25:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:TXXBQUAF5GVLH5F5O5UOORLL5C","target":"record","payload":{"canonical_record":{"source":{"id":"2202.10896","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2022-02-22T13:50:21Z","cross_cats_sorted":[],"title_canon_sha256":"ac7a6807dad313e8fa8d740ed55ba614ab02dc795bb7713969165b29a4f1b2d7","abstract_canon_sha256":"de5902019681db4612d02b665cffbcaf184a1d711d559afda8e222d7f5a31955"},"schema_version":"1.0"},"canonical_sha256":"9dee185005e9aab3f4bd7768e7456be8952526f7be3b817c6a566d44e6906fbd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:25:00.896056Z","signature_b64":"fO6K++EWqAnWBpWaI9Yb47nMqGTcOfClSF3hMIcuwXp3e131nXko2Fm6FBhibkPNkElDyuEob2wsSvd0qoqYCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9dee185005e9aab3f4bd7768e7456be8952526f7be3b817c6a566d44e6906fbd","last_reissued_at":"2026-07-05T05:25:00.895644Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:25:00.895644Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2202.10896","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":"2026-07-05T05:25:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ww+FfRvm66eIpiQOg11wHUU8i5d5EbgjYlP6aljacr6YlBWvFeK72AZN6bXaWzMJKmA/WRbMdG1drKPmnTYIAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T01:44:51.920157Z"},"content_sha256":"c9c169f129b83b0b0d4a5482b37eb64296e325230b99c1eb7d8a72750d42974b","schema_version":"1.0","event_id":"sha256:c9c169f129b83b0b0d4a5482b37eb64296e325230b99c1eb7d8a72750d42974b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:TXXBQUAF5GVLH5F5O5UOORLL5C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Birefringence and dichroism effects in the spin noise spectra of a spin-1 system","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"E. Brion, E. Wu, F. Bretenaker, F. Goldfarb, L. Hemmen, P. Neveu, S. Liu","submitted_at":"2022-02-22T13:50:21Z","abstract_excerpt":"We perform spin noise spectroscopy experiments in metastable helium atoms at room temperature, with a probe light whose frequency is blue detuned from the D0 line. Both circular birefringence fluctuations (Faraday noise) and linear birefringence fluctuations (ellipticity noise) are explored theoretically and experimentally. In particular, it is shown that in both cases but for different optical detunings, two noise resonances are isolated at the Larmor frequency and at twice the Larmor frequency with a behaviour, which strongly depends on the orientation of the probe field polarization. The si"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.10896","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/2202.10896/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":"2026-07-05T05:25:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"REfkxjKeIxUY37moJxTBbA7sgFfRanLmYq7QauoXv4EVpj7ey3ml3NkD6+e+AsY2heqTmOUxtxP4oACx/vftBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T01:44:51.920679Z"},"content_sha256":"06b506c39fe9415d871415eec6391d8b75cfdc61b0904e7d8c41ad4fc9a70f6b","schema_version":"1.0","event_id":"sha256:06b506c39fe9415d871415eec6391d8b75cfdc61b0904e7d8c41ad4fc9a70f6b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TXXBQUAF5GVLH5F5O5UOORLL5C/bundle.json","state_url":"https://pith.science/pith/TXXBQUAF5GVLH5F5O5UOORLL5C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TXXBQUAF5GVLH5F5O5UOORLL5C/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":"2026-08-04T01:44:51Z","links":{"resolver":"https://pith.science/pith/TXXBQUAF5GVLH5F5O5UOORLL5C","bundle":"https://pith.science/pith/TXXBQUAF5GVLH5F5O5UOORLL5C/bundle.json","state":"https://pith.science/pith/TXXBQUAF5GVLH5F5O5UOORLL5C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TXXBQUAF5GVLH5F5O5UOORLL5C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:TXXBQUAF5GVLH5F5O5UOORLL5C","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":"de5902019681db4612d02b665cffbcaf184a1d711d559afda8e222d7f5a31955","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2022-02-22T13:50:21Z","title_canon_sha256":"ac7a6807dad313e8fa8d740ed55ba614ab02dc795bb7713969165b29a4f1b2d7"},"schema_version":"1.0","source":{"id":"2202.10896","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2202.10896","created_at":"2026-07-05T05:25:00Z"},{"alias_kind":"arxiv_version","alias_value":"2202.10896v2","created_at":"2026-07-05T05:25:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.10896","created_at":"2026-07-05T05:25:00Z"},{"alias_kind":"pith_short_12","alias_value":"TXXBQUAF5GVL","created_at":"2026-07-05T05:25:00Z"},{"alias_kind":"pith_short_16","alias_value":"TXXBQUAF5GVLH5F5","created_at":"2026-07-05T05:25:00Z"},{"alias_kind":"pith_short_8","alias_value":"TXXBQUAF","created_at":"2026-07-05T05:25:00Z"}],"graph_snapshots":[{"event_id":"sha256:06b506c39fe9415d871415eec6391d8b75cfdc61b0904e7d8c41ad4fc9a70f6b","target":"graph","created_at":"2026-07-05T05:25:00Z","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/2202.10896/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We perform spin noise spectroscopy experiments in metastable helium atoms at room temperature, with a probe light whose frequency is blue detuned from the D0 line. Both circular birefringence fluctuations (Faraday noise) and linear birefringence fluctuations (ellipticity noise) are explored theoretically and experimentally. In particular, it is shown that in both cases but for different optical detunings, two noise resonances are isolated at the Larmor frequency and at twice the Larmor frequency with a behaviour, which strongly depends on the orientation of the probe field polarization. The si","authors_text":"E. Brion, E. Wu, F. Bretenaker, F. Goldfarb, L. Hemmen, P. Neveu, S. Liu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2022-02-22T13:50:21Z","title":"Birefringence and dichroism effects in the spin noise spectra of a spin-1 system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.10896","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:c9c169f129b83b0b0d4a5482b37eb64296e325230b99c1eb7d8a72750d42974b","target":"record","created_at":"2026-07-05T05:25:00Z","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":"de5902019681db4612d02b665cffbcaf184a1d711d559afda8e222d7f5a31955","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2022-02-22T13:50:21Z","title_canon_sha256":"ac7a6807dad313e8fa8d740ed55ba614ab02dc795bb7713969165b29a4f1b2d7"},"schema_version":"1.0","source":{"id":"2202.10896","kind":"arxiv","version":2}},"canonical_sha256":"9dee185005e9aab3f4bd7768e7456be8952526f7be3b817c6a566d44e6906fbd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9dee185005e9aab3f4bd7768e7456be8952526f7be3b817c6a566d44e6906fbd","first_computed_at":"2026-07-05T05:25:00.895644Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:25:00.895644Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fO6K++EWqAnWBpWaI9Yb47nMqGTcOfClSF3hMIcuwXp3e131nXko2Fm6FBhibkPNkElDyuEob2wsSvd0qoqYCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:25:00.896056Z","signed_message":"canonical_sha256_bytes"},"source_id":"2202.10896","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c9c169f129b83b0b0d4a5482b37eb64296e325230b99c1eb7d8a72750d42974b","sha256:06b506c39fe9415d871415eec6391d8b75cfdc61b0904e7d8c41ad4fc9a70f6b"],"state_sha256":"4e50f6c9faddbee181193b70f1dd8836f6f17ef3abfec608260322d4d4b3b69f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MERzBX1CCt+puJCL9XpWE6bJqvnD1LLMw4G34+YeYpQmNpixVA6L3NYzQYHLsaIz2pluiXlA5MtAjrFN52FuBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T01:44:51.926393Z","bundle_sha256":"c0abf8caab9bd3f7134af9721cdf262dfdc6c57241b58a5fe1330b3574e36451"}}