{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:RUOATPLFGOVVY4HRRSQOXFF2GQ","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":"e01b0a27d7e12ae1fef6accba4365e41cd8ec6557ef755ba154b9515a073fc2c","cross_cats_sorted":["nucl-ex","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-07-03T20:07:35Z","title_canon_sha256":"520ba53a3032d0e763e28eb3482f1d9b3c18ff981539ce51cadda5015cfb62df"},"schema_version":"1.0","source":{"id":"1707.00745","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.00745","created_at":"2026-05-18T00:33:31Z"},{"alias_kind":"arxiv_version","alias_value":"1707.00745v2","created_at":"2026-05-18T00:33:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.00745","created_at":"2026-05-18T00:33:31Z"},{"alias_kind":"pith_short_12","alias_value":"RUOATPLFGOVV","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"RUOATPLFGOVVY4HR","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"RUOATPLF","created_at":"2026-05-18T12:31:39Z"}],"graph_snapshots":[{"event_id":"sha256:c8d1cdfcf8e01e421f878b64cef0909666c8afc10ad0ea4764af768d539bfece","target":"graph","created_at":"2026-05-18T00:33:31Z","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":"Results of a search for a long-range monopole-dipole coupling between the mass of the Earth and rubidium (Rb) nuclear spins are reported. The experiment simultaneously measures the spin precession frequencies of overlapping ensembles of $^{85}$Rb and $^{87}$Rb atoms contained within an evacuated, antirelaxation-coated vapor cell. The nuclear structure of the Rb isotopes makes the experiment particularly sensitive to spin-dependent interactions of the proton. The spin-dependent component of the gravitational energy of the proton in the Earth's field is found to be smaller than $3 \\times 10^{-18","authors_text":"Derek F. Jackson Kimball, Dilan Patel, Jordan Dudley, Julian Valdez, Yan Li","cross_cats":["nucl-ex","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-07-03T20:07:35Z","title":"Constraints on long-range spin-gravity and monopole-dipole couplings of the proton"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.00745","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":"sha256:14ac19e28ba8c919ae1705813fb40d86a4563d694ffe47a5ab7dcfa8859b36b0","target":"record","created_at":"2026-05-18T00:33:31Z","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":"e01b0a27d7e12ae1fef6accba4365e41cd8ec6557ef755ba154b9515a073fc2c","cross_cats_sorted":["nucl-ex","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-07-03T20:07:35Z","title_canon_sha256":"520ba53a3032d0e763e28eb3482f1d9b3c18ff981539ce51cadda5015cfb62df"},"schema_version":"1.0","source":{"id":"1707.00745","kind":"arxiv","version":2}},"canonical_sha256":"8d1c09bd6533ab5c70f18ca0eb94ba3423f6b7058a13fcb7f4a3593723196787","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8d1c09bd6533ab5c70f18ca0eb94ba3423f6b7058a13fcb7f4a3593723196787","first_computed_at":"2026-05-18T00:33:31.925686Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:33:31.925686Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"P51S/qRDSzZHQWQpJA+ofB1BqCIWN6Kwunz3W5ZRfJWuwer+RQlWf8o+WE4qVDhzb2VVOfyrs5iDnFmPf7CuAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:33:31.926206Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.00745","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:14ac19e28ba8c919ae1705813fb40d86a4563d694ffe47a5ab7dcfa8859b36b0","sha256:c8d1cdfcf8e01e421f878b64cef0909666c8afc10ad0ea4764af768d539bfece"],"state_sha256":"2b9477247d38db9787143eb6a58acb317eaf3cadcb662e2d5ffe85bb8d0e5801"}