{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:L7PQPYVIQD7U5Z77VWDJLVEMUA","short_pith_number":"pith:L7PQPYVI","canonical_record":{"source":{"id":"2301.00460","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-ex","submitted_at":"2023-01-01T19:25:14Z","cross_cats_sorted":["cond-mat.mtrl-sci","hep-ex","physics.atom-ph","quant-ph"],"title_canon_sha256":"fd8099765f1d49c1fe2d463cb8a2ea46cca4e1fbf96365333e2db8c75561ae7b","abstract_canon_sha256":"ccdc93f68f9d5027e28ef1220974de1a51547bcf3dddb4664c5dda62b1668731"},"schema_version":"1.0"},"canonical_sha256":"5fdf07e2a880ff4ee7ffad8695d48ca032d789e60965f57153882bb350dbdbbb","source":{"kind":"arxiv","id":"2301.00460","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2301.00460","created_at":"2026-07-05T05:29:46Z"},{"alias_kind":"arxiv_version","alias_value":"2301.00460v1","created_at":"2026-07-05T05:29:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2301.00460","created_at":"2026-07-05T05:29:46Z"},{"alias_kind":"pith_short_12","alias_value":"L7PQPYVIQD7U","created_at":"2026-07-05T05:29:46Z"},{"alias_kind":"pith_short_16","alias_value":"L7PQPYVIQD7U5Z77","created_at":"2026-07-05T05:29:46Z"},{"alias_kind":"pith_short_8","alias_value":"L7PQPYVI","created_at":"2026-07-05T05:29:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:L7PQPYVIQD7U5Z77VWDJLVEMUA","target":"record","payload":{"canonical_record":{"source":{"id":"2301.00460","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-ex","submitted_at":"2023-01-01T19:25:14Z","cross_cats_sorted":["cond-mat.mtrl-sci","hep-ex","physics.atom-ph","quant-ph"],"title_canon_sha256":"fd8099765f1d49c1fe2d463cb8a2ea46cca4e1fbf96365333e2db8c75561ae7b","abstract_canon_sha256":"ccdc93f68f9d5027e28ef1220974de1a51547bcf3dddb4664c5dda62b1668731"},"schema_version":"1.0"},"canonical_sha256":"5fdf07e2a880ff4ee7ffad8695d48ca032d789e60965f57153882bb350dbdbbb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:29:46.660934Z","signature_b64":"nHJOh+0R3JRJQon6wX31L2GWdDHa6cT9KfQWDEuO8OspM6FhFWiiIpQpOCM4JFYq3U0oaHdkiox0mxY44SHtBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5fdf07e2a880ff4ee7ffad8695d48ca032d789e60965f57153882bb350dbdbbb","last_reissued_at":"2026-07-05T05:29:46.660475Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:29:46.660475Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2301.00460","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":"2026-07-05T05:29:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2sqTNH9X+ZKKsHZwMh07QqAEOeLg1Jof/rEVMxrNDFIgbKJ/ZwCiv91taWw1zJT9ihLQAUOVOumiWQLb8vFNCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T08:14:35.714467Z"},"content_sha256":"0c8e0ccabb8a3b03f03b5f1f7ad75f9e3ad1cbe3fcf83b81872f7fd8e4872c27","schema_version":"1.0","event_id":"sha256:0c8e0ccabb8a3b03f03b5f1f7ad75f9e3ad1cbe3fcf83b81872f7fd8e4872c27"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:L7PQPYVIQD7U5Z77VWDJLVEMUA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"First Measurement of Neutron Birefringence in Polarized $^{129}$Xe and $^{131}$Xe Nuclei","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","hep-ex","physics.atom-ph","quant-ph"],"primary_cat":"nucl-ex","authors_text":"A. Ioffe, B. M. Goodson, D. Basler, E. Babcock, H. Lu, K. Zhernenkov, M. J. Barlow, O. Holderer, P. Gutfreund, P. Pistel, S. Pasini, W. M. Snow, Z. Salhi","submitted_at":"2023-01-01T19:25:14Z","abstract_excerpt":"We present the first measurements of polarized neutron birefringence in transmission through nuclear-polarized $^{129}$Xe and $^{131}$Xe gas and determine the neutron incoherent scattering lengths $b_i(^{129}Xe)=0.186\\pm(0.021)_{stat.}\\pm(0.004)_{syst.}\\space\\text{ fm}$ and $b_i(^{131}Xe)=2.09\\pm(0.29)_{stat.}\\pm(0.12)_{syst.}\\space\\text{ fm}$ for the first time. These results determine the essential parameter needed for interpretation of spin-dependent neutron-scattering studies on polarized xenon ensembles, with possible future applications ranging from tests of time-reversal violation to mo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.00460","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/2301.00460/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":"2026-07-05T05:29:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cG2XwCxsiXUmRAIZN+9AqkB9OWhvzZYD1n7MZI5lu/rU+X5rP9u50ZvXINXkQbwoIhhUJu39PGv4RVliML8cBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T08:14:35.715116Z"},"content_sha256":"0dfa795b946bab0c8c7b67fc0dc0380d523457960fcc344b9814d5e98855739d","schema_version":"1.0","event_id":"sha256:0dfa795b946bab0c8c7b67fc0dc0380d523457960fcc344b9814d5e98855739d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/L7PQPYVIQD7U5Z77VWDJLVEMUA/bundle.json","state_url":"https://pith.science/pith/L7PQPYVIQD7U5Z77VWDJLVEMUA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/L7PQPYVIQD7U5Z77VWDJLVEMUA/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":"2026-08-14T08:14:35Z","links":{"resolver":"https://pith.science/pith/L7PQPYVIQD7U5Z77VWDJLVEMUA","bundle":"https://pith.science/pith/L7PQPYVIQD7U5Z77VWDJLVEMUA/bundle.json","state":"https://pith.science/pith/L7PQPYVIQD7U5Z77VWDJLVEMUA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/L7PQPYVIQD7U5Z77VWDJLVEMUA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:L7PQPYVIQD7U5Z77VWDJLVEMUA","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":"ccdc93f68f9d5027e28ef1220974de1a51547bcf3dddb4664c5dda62b1668731","cross_cats_sorted":["cond-mat.mtrl-sci","hep-ex","physics.atom-ph","quant-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-ex","submitted_at":"2023-01-01T19:25:14Z","title_canon_sha256":"fd8099765f1d49c1fe2d463cb8a2ea46cca4e1fbf96365333e2db8c75561ae7b"},"schema_version":"1.0","source":{"id":"2301.00460","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2301.00460","created_at":"2026-07-05T05:29:46Z"},{"alias_kind":"arxiv_version","alias_value":"2301.00460v1","created_at":"2026-07-05T05:29:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2301.00460","created_at":"2026-07-05T05:29:46Z"},{"alias_kind":"pith_short_12","alias_value":"L7PQPYVIQD7U","created_at":"2026-07-05T05:29:46Z"},{"alias_kind":"pith_short_16","alias_value":"L7PQPYVIQD7U5Z77","created_at":"2026-07-05T05:29:46Z"},{"alias_kind":"pith_short_8","alias_value":"L7PQPYVI","created_at":"2026-07-05T05:29:46Z"}],"graph_snapshots":[{"event_id":"sha256:0dfa795b946bab0c8c7b67fc0dc0380d523457960fcc344b9814d5e98855739d","target":"graph","created_at":"2026-07-05T05:29:46Z","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/2301.00460/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the first measurements of polarized neutron birefringence in transmission through nuclear-polarized $^{129}$Xe and $^{131}$Xe gas and determine the neutron incoherent scattering lengths $b_i(^{129}Xe)=0.186\\pm(0.021)_{stat.}\\pm(0.004)_{syst.}\\space\\text{ fm}$ and $b_i(^{131}Xe)=2.09\\pm(0.29)_{stat.}\\pm(0.12)_{syst.}\\space\\text{ fm}$ for the first time. These results determine the essential parameter needed for interpretation of spin-dependent neutron-scattering studies on polarized xenon ensembles, with possible future applications ranging from tests of time-reversal violation to mo","authors_text":"A. Ioffe, B. M. Goodson, D. Basler, E. Babcock, H. Lu, K. Zhernenkov, M. J. Barlow, O. Holderer, P. Gutfreund, P. Pistel, S. Pasini, W. M. Snow, Z. Salhi","cross_cats":["cond-mat.mtrl-sci","hep-ex","physics.atom-ph","quant-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-ex","submitted_at":"2023-01-01T19:25:14Z","title":"First Measurement of Neutron Birefringence in Polarized $^{129}$Xe and $^{131}$Xe Nuclei"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.00460","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":"sha256:0c8e0ccabb8a3b03f03b5f1f7ad75f9e3ad1cbe3fcf83b81872f7fd8e4872c27","target":"record","created_at":"2026-07-05T05:29:46Z","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":"ccdc93f68f9d5027e28ef1220974de1a51547bcf3dddb4664c5dda62b1668731","cross_cats_sorted":["cond-mat.mtrl-sci","hep-ex","physics.atom-ph","quant-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-ex","submitted_at":"2023-01-01T19:25:14Z","title_canon_sha256":"fd8099765f1d49c1fe2d463cb8a2ea46cca4e1fbf96365333e2db8c75561ae7b"},"schema_version":"1.0","source":{"id":"2301.00460","kind":"arxiv","version":1}},"canonical_sha256":"5fdf07e2a880ff4ee7ffad8695d48ca032d789e60965f57153882bb350dbdbbb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5fdf07e2a880ff4ee7ffad8695d48ca032d789e60965f57153882bb350dbdbbb","first_computed_at":"2026-07-05T05:29:46.660475Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:29:46.660475Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nHJOh+0R3JRJQon6wX31L2GWdDHa6cT9KfQWDEuO8OspM6FhFWiiIpQpOCM4JFYq3U0oaHdkiox0mxY44SHtBw==","signature_status":"signed_v1","signed_at":"2026-07-05T05:29:46.660934Z","signed_message":"canonical_sha256_bytes"},"source_id":"2301.00460","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0c8e0ccabb8a3b03f03b5f1f7ad75f9e3ad1cbe3fcf83b81872f7fd8e4872c27","sha256:0dfa795b946bab0c8c7b67fc0dc0380d523457960fcc344b9814d5e98855739d"],"state_sha256":"a94f261f2512ba20d625449b35f7d0c6645b790130bb369b6afeb1e797fddb91"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wqhM4UdL1YjwiZ8qJNRzzFaXN2+xT3Jx+p17vhRd/D96fUBGS6CK/wp2G1huLl2UK0ayT8jj4xw4YU/fcSQ+Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T08:14:35.721762Z","bundle_sha256":"efd2ff959a5178186471d3d0f5745d548857a1e8f9d24172671c60a799e8af31"}}