{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:RKCUBRWVXQ63ITDAADTTIC6FWW","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":"7d8a747c014e954665b33f07a5dc5957dfc826a34322458bacd0704e1aaa75b4","cross_cats_sorted":["hep-ph","physics.app-ph","physics.data-an","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2017-07-16T16:37:32Z","title_canon_sha256":"567ced050593da3c16eec7d8106b900c2023af63463625ebea59c77d53eacd04"},"schema_version":"1.0","source":{"id":"1707.05312","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.05312","created_at":"2026-05-18T00:14:59Z"},{"alias_kind":"arxiv_version","alias_value":"1707.05312v3","created_at":"2026-05-18T00:14:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.05312","created_at":"2026-05-18T00:14:59Z"},{"alias_kind":"pith_short_12","alias_value":"RKCUBRWVXQ63","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"RKCUBRWVXQ63ITDA","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"RKCUBRWV","created_at":"2026-05-18T12:31:39Z"}],"graph_snapshots":[{"event_id":"sha256:47033a23a0a47ee91e5fca2e6ed1cc3be82e86355f1d89747d3f10f579f1ab77","target":"graph","created_at":"2026-05-18T00:14:59Z","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":"The Cosmic Axion Spin Precession Experiment (CASPEr) is a nuclear magnetic resonance experiment (NMR) seeking to detect axion and axion-like particles which could make up the dark matter present in the universe. We review the predicted couplings of axions and axion-like particles with baryonic matter that enable their detection via NMR. We then describe two measurement schemes being implemented in CASPEr. The first method, presented in the original CASPEr proposal, consists of a resonant search via continuous-wave NMR spectroscopy. This method offers the highest sensitivity for frequencies ran","authors_text":"Alexander O. Sushkov, Antoine Garcon, Arne Wickenbrock, Deniz Aybas, Derek F. Jackson Kimball, Dmitry Budker, Gary Centers, John W. Blanchard, Lutz Trahms, Marina Gil Sendra, Nataniel L. Figueroa, Peter W. Graham, Surjeet Rajendran, Tao Wang, Teng Wu","cross_cats":["hep-ph","physics.app-ph","physics.data-an","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2017-07-16T16:37:32Z","title":"The Cosmic Axion Spin Precession Experiment (CASPEr): a dark-matter search with nuclear magnetic resonance"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.05312","kind":"arxiv","version":3},"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:c92753a5b7a3c617c9955a72e6d74b90059958a2dbc4523717e736250bab6619","target":"record","created_at":"2026-05-18T00:14:59Z","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":"7d8a747c014e954665b33f07a5dc5957dfc826a34322458bacd0704e1aaa75b4","cross_cats_sorted":["hep-ph","physics.app-ph","physics.data-an","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2017-07-16T16:37:32Z","title_canon_sha256":"567ced050593da3c16eec7d8106b900c2023af63463625ebea59c77d53eacd04"},"schema_version":"1.0","source":{"id":"1707.05312","kind":"arxiv","version":3}},"canonical_sha256":"8a8540c6d5bc3db44c6000e7340bc5b5af98c8a574215fd2f4fa02e94de7f2ca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8a8540c6d5bc3db44c6000e7340bc5b5af98c8a574215fd2f4fa02e94de7f2ca","first_computed_at":"2026-05-18T00:14:59.982384Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:14:59.982384Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"djNRK5FPZquFgoHRj0KjpmORu7B/VcUe+iQt3yL/i3OrbhnYWg3h3dQdFzm7DglPgV44gKjSMzp3o3aYU68cAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:14:59.983026Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.05312","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c92753a5b7a3c617c9955a72e6d74b90059958a2dbc4523717e736250bab6619","sha256:47033a23a0a47ee91e5fca2e6ed1cc3be82e86355f1d89747d3f10f579f1ab77"],"state_sha256":"04fa219a5104559db99c95685e043a316b733b2175730bf27d9529f7d29df88c"}