{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:PJOTLJR2MDJQBQADCJE3CS7GMS","short_pith_number":"pith:PJOTLJR2","canonical_record":{"source":{"id":"1504.07477","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-04-28T13:58:40Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"c2d790f6d37c30fd50e0433c5f7197443a534c07c596a20be736e2a9324577fd","abstract_canon_sha256":"df7682ef4fee84fefa8edf0c7182bd6f38541b8ae1f005984b0e2a376666d64e"},"schema_version":"1.0"},"canonical_sha256":"7a5d35a63a60d300c0031249b14be664820a0adfc03efad1ddaff866f77327f6","source":{"kind":"arxiv","id":"1504.07477","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.07477","created_at":"2026-05-18T02:17:32Z"},{"alias_kind":"arxiv_version","alias_value":"1504.07477v2","created_at":"2026-05-18T02:17:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.07477","created_at":"2026-05-18T02:17:32Z"},{"alias_kind":"pith_short_12","alias_value":"PJOTLJR2MDJQ","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_16","alias_value":"PJOTLJR2MDJQBQAD","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_8","alias_value":"PJOTLJR2","created_at":"2026-05-18T12:29:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:PJOTLJR2MDJQBQADCJE3CS7GMS","target":"record","payload":{"canonical_record":{"source":{"id":"1504.07477","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-04-28T13:58:40Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"c2d790f6d37c30fd50e0433c5f7197443a534c07c596a20be736e2a9324577fd","abstract_canon_sha256":"df7682ef4fee84fefa8edf0c7182bd6f38541b8ae1f005984b0e2a376666d64e"},"schema_version":"1.0"},"canonical_sha256":"7a5d35a63a60d300c0031249b14be664820a0adfc03efad1ddaff866f77327f6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:17:32.788677Z","signature_b64":"jXMR3d6n5wMlz3eo3Gy6jS415LwmnWeOjG+wEVW/1Sw9THOd5kBF2Bv5mIoiytCcKz/enzuqPMZ3WvncU/EkDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7a5d35a63a60d300c0031249b14be664820a0adfc03efad1ddaff866f77327f6","last_reissued_at":"2026-05-18T02:17:32.788032Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:17:32.788032Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1504.07477","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":"2026-05-18T02:17:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uHCDE2fWpPSUd7Q8bU7Zr5F1vEX30VytUU8oKkHwBrxRyXOqlKlhQX4m4CJv9KSlYlBoJRnoMEGHlOSQgzlQAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T06:11:40.928776Z"},"content_sha256":"66ea10933dc2aaf5b156c8a7734e9e982a58b06171518c610004c60276b15197","schema_version":"1.0","event_id":"sha256:66ea10933dc2aaf5b156c8a7734e9e982a58b06171518c610004c60276b15197"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:PJOTLJR2MDJQBQADCJE3CS7GMS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"First Measurement of the Atomic Electric Dipole Moment of $^{225}$Ra","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"nucl-ex","authors_text":"J.P. Greene, J.T. Singh, K.G. Bailey, M.N. Bishof, M.R. Dietrich, M.R. Kalita, N.D. Lemke, P. Mueller, R.H. Parker, R.J. Holt, T.P. O'Connor, W. Korsch, Z.-T. Lu","submitted_at":"2015-04-28T13:58:40Z","abstract_excerpt":"The radioactive radium-225 ($^{225}$Ra) atom is a favorable case to search for a permanent electric dipole moment (EDM). Due to its strong nuclear octupole deformation and large atomic mass, $^{225}$Ra is particularly sensitive to interactions in the nuclear medium that violate both time-reversal symmetry and parity. We have developed a cold-atom technique to study the spin precession of $^{225}$Ra atoms held in an optical dipole trap, and demonstrated the principle of this method by completing the first measurement of its atomic EDM, reaching an upper limit of $|$$d$($^{225}$Ra)$|$ $<$ $5.0\\!"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.07477","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":""},"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":"2026-05-18T02:17:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S6ZNvsKasT51ZgRZP11Ky8h/oq2lkN+By78jhnQXJM/Y6KWCjiuqb1eH1LtdZ/y3oSUmMiZC8cr8N4wML+zJDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T06:11:40.929455Z"},"content_sha256":"e923ad16cbd8ad9e0c6122d4066561dcdd5c1366c5319b02b246c5af74eb40d5","schema_version":"1.0","event_id":"sha256:e923ad16cbd8ad9e0c6122d4066561dcdd5c1366c5319b02b246c5af74eb40d5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PJOTLJR2MDJQBQADCJE3CS7GMS/bundle.json","state_url":"https://pith.science/pith/PJOTLJR2MDJQBQADCJE3CS7GMS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PJOTLJR2MDJQBQADCJE3CS7GMS/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":"2026-05-30T06:11:40Z","links":{"resolver":"https://pith.science/pith/PJOTLJR2MDJQBQADCJE3CS7GMS","bundle":"https://pith.science/pith/PJOTLJR2MDJQBQADCJE3CS7GMS/bundle.json","state":"https://pith.science/pith/PJOTLJR2MDJQBQADCJE3CS7GMS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PJOTLJR2MDJQBQADCJE3CS7GMS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:PJOTLJR2MDJQBQADCJE3CS7GMS","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":"df7682ef4fee84fefa8edf0c7182bd6f38541b8ae1f005984b0e2a376666d64e","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-04-28T13:58:40Z","title_canon_sha256":"c2d790f6d37c30fd50e0433c5f7197443a534c07c596a20be736e2a9324577fd"},"schema_version":"1.0","source":{"id":"1504.07477","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.07477","created_at":"2026-05-18T02:17:32Z"},{"alias_kind":"arxiv_version","alias_value":"1504.07477v2","created_at":"2026-05-18T02:17:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.07477","created_at":"2026-05-18T02:17:32Z"},{"alias_kind":"pith_short_12","alias_value":"PJOTLJR2MDJQ","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_16","alias_value":"PJOTLJR2MDJQBQAD","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_8","alias_value":"PJOTLJR2","created_at":"2026-05-18T12:29:37Z"}],"graph_snapshots":[{"event_id":"sha256:e923ad16cbd8ad9e0c6122d4066561dcdd5c1366c5319b02b246c5af74eb40d5","target":"graph","created_at":"2026-05-18T02:17:32Z","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 radioactive radium-225 ($^{225}$Ra) atom is a favorable case to search for a permanent electric dipole moment (EDM). Due to its strong nuclear octupole deformation and large atomic mass, $^{225}$Ra is particularly sensitive to interactions in the nuclear medium that violate both time-reversal symmetry and parity. We have developed a cold-atom technique to study the spin precession of $^{225}$Ra atoms held in an optical dipole trap, and demonstrated the principle of this method by completing the first measurement of its atomic EDM, reaching an upper limit of $|$$d$($^{225}$Ra)$|$ $<$ $5.0\\!","authors_text":"J.P. Greene, J.T. Singh, K.G. Bailey, M.N. Bishof, M.R. Dietrich, M.R. Kalita, N.D. Lemke, P. Mueller, R.H. Parker, R.J. Holt, T.P. O'Connor, W. Korsch, Z.-T. Lu","cross_cats":["physics.atom-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-04-28T13:58:40Z","title":"First Measurement of the Atomic Electric Dipole Moment of $^{225}$Ra"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.07477","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":"sha256:66ea10933dc2aaf5b156c8a7734e9e982a58b06171518c610004c60276b15197","target":"record","created_at":"2026-05-18T02:17:32Z","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":"df7682ef4fee84fefa8edf0c7182bd6f38541b8ae1f005984b0e2a376666d64e","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-04-28T13:58:40Z","title_canon_sha256":"c2d790f6d37c30fd50e0433c5f7197443a534c07c596a20be736e2a9324577fd"},"schema_version":"1.0","source":{"id":"1504.07477","kind":"arxiv","version":2}},"canonical_sha256":"7a5d35a63a60d300c0031249b14be664820a0adfc03efad1ddaff866f77327f6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7a5d35a63a60d300c0031249b14be664820a0adfc03efad1ddaff866f77327f6","first_computed_at":"2026-05-18T02:17:32.788032Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:17:32.788032Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jXMR3d6n5wMlz3eo3Gy6jS415LwmnWeOjG+wEVW/1Sw9THOd5kBF2Bv5mIoiytCcKz/enzuqPMZ3WvncU/EkDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:17:32.788677Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.07477","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:66ea10933dc2aaf5b156c8a7734e9e982a58b06171518c610004c60276b15197","sha256:e923ad16cbd8ad9e0c6122d4066561dcdd5c1366c5319b02b246c5af74eb40d5"],"state_sha256":"aa4d41aa9e54f96dd59ee932412e9053a0c519b52a1a79c7350cc6abaa474f8b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NnA+w25mWvU5pasRiHNPELv37P5WhwJbq0avt3P5kSIrQi6Cl0/GP5CaoUR1thXialYHZ5iYWtJLY0p/c7W0CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T06:11:40.933004Z","bundle_sha256":"9adf005b4e8e100bd133631dc1d46a78f2f69b03bb46da426b57d0e41a3ebce3"}}