{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:XLF4DDMH2SURIKCBG6H57YU65L","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":"94bf18e4d7015b07a73a4a4a6d21db030ee8f557daaf72c3e4970dd8ec53009b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-10-24T22:58:18Z","title_canon_sha256":"d0aa67ba743eb64786e89bd94f9a7b26f10047e0f4e47ffef17a703f9a527ef3"},"schema_version":"1.0","source":{"id":"1710.09014","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.09014","created_at":"2026-05-18T00:24:54Z"},{"alias_kind":"arxiv_version","alias_value":"1710.09014v2","created_at":"2026-05-18T00:24:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.09014","created_at":"2026-05-18T00:24:54Z"},{"alias_kind":"pith_short_12","alias_value":"XLF4DDMH2SUR","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_16","alias_value":"XLF4DDMH2SURIKCB","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_8","alias_value":"XLF4DDMH","created_at":"2026-05-18T12:31:56Z"}],"graph_snapshots":[{"event_id":"sha256:bea42589737c2705ad28d598b2834655a6f71ff9ad10acf511c59ee8c8d0c9d4","target":"graph","created_at":"2026-05-18T00:24:54Z","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 hyperfine structure of the ground state of erbium doped yttrium orthosilicate is analyzed with the use of electron paramagnetic resonance experiments in a tunable microwave resonator. This work was prompted by the disagreement between the measurements made in zero magnetic field [Phys. Rev. B, 94, 075117, (2016)] and a previously published spin Hamiltonian, which is derived from standard EPR measurements at 9.5 GHz [Phys. Rev. B, 74, 214409, (2006)].\n  The ability to vary magnetic field strength, resonator frequency, and the orientation of our sample enabled us to monitor how the frequenci","authors_text":"Jelena V. Rakonjac, Jevon J. Longdell, Sebastian P. Horvath, Xavier Fernandez-Gonzalvo, Yu-hui Chen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-10-24T22:58:18Z","title":"Hyperfine interactions of $\\text{Er}^{3+}$ ions in $\\text{Y}_2\\text{SiO}_{5}$: electron paramagnetic resonance in a tunable microwave cavity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.09014","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":"sha256:4c4ed683cd171b49f3e3429ecf1616f38d7c8857098d2e58e28fd1124a16cfde","target":"record","created_at":"2026-05-18T00:24:54Z","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":"94bf18e4d7015b07a73a4a4a6d21db030ee8f557daaf72c3e4970dd8ec53009b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-10-24T22:58:18Z","title_canon_sha256":"d0aa67ba743eb64786e89bd94f9a7b26f10047e0f4e47ffef17a703f9a527ef3"},"schema_version":"1.0","source":{"id":"1710.09014","kind":"arxiv","version":2}},"canonical_sha256":"bacbc18d87d4a9142841378fdfe29eead7fd0b61cff1696b0e6290ac04cdad18","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bacbc18d87d4a9142841378fdfe29eead7fd0b61cff1696b0e6290ac04cdad18","first_computed_at":"2026-05-18T00:24:54.301396Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:24:54.301396Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9v4qqQd99+6Gls+A4MLzR5yhQK9ibgJBOQmzi1lQQun1a54KDKNzEwtOoM8DPsKwiyFLaxzdxf4mHOn/xbVyAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:24:54.302050Z","signed_message":"canonical_sha256_bytes"},"source_id":"1710.09014","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4c4ed683cd171b49f3e3429ecf1616f38d7c8857098d2e58e28fd1124a16cfde","sha256:bea42589737c2705ad28d598b2834655a6f71ff9ad10acf511c59ee8c8d0c9d4"],"state_sha256":"781214e3a7d285af05c7060ea1c2ead226b01d1b2edf29c2c6fde00ae3437c85"}