{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:JWD5O5CAULE76IZFFUCFGB33FV","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":"4f212cea9c614146473988643c9c4680706a1f174bbf93862e977fee6f7285be","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-02-10T13:43:10Z","title_canon_sha256":"b3b3c926732c10e0ed037c9476feacf35166d46f4875b366b9b9ae249bfb88f0"},"schema_version":"1.0","source":{"id":"1802.04661","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.04661","created_at":"2026-07-05T01:27:16Z"},{"alias_kind":"arxiv_version","alias_value":"1802.04661v2","created_at":"2026-07-05T01:27:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.04661","created_at":"2026-07-05T01:27:16Z"},{"alias_kind":"pith_short_12","alias_value":"JWD5O5CAULE7","created_at":"2026-07-05T01:27:16Z"},{"alias_kind":"pith_short_16","alias_value":"JWD5O5CAULE76IZF","created_at":"2026-07-05T01:27:16Z"},{"alias_kind":"pith_short_8","alias_value":"JWD5O5CA","created_at":"2026-07-05T01:27:16Z"}],"graph_snapshots":[{"event_id":"sha256:d71a71f359df8f954ee56f55337774475b180103bcc5a72595bc6c61ac6560dc","target":"graph","created_at":"2026-07-05T01:27:16Z","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/1802.04661/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Cavity optomechanical magnetic field sensors, constructed by coupling a magnetostrictive material to a micro-toroidal optical cavity, act as ultra-sensitive room temperature magnetometers with tens of micrometre size and broad bandwidth, combined with a simple operating scheme. Here, we develop a general recipe for predicting the field sensitivity of these devices. Several geometries are analysed, with a highest predicted sensitivity of 180~p$\\textrm{T}/\\sqrt{\\textrm{Hz}}$ at 28~$\\mu$m resolution limited by thermal noise in good agreement with previous experimental observations. Furthermore, b","authors_text":"Halina Rubinsztein-Dunlop, Stefan Forstner, Warwick P. Bowen, Yimin Yu","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-02-10T13:43:10Z","title":"Modelling of cavity optomechanical magnetometers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.04661","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":"sha256:243cc3c56da73e31739e4daf1e06d3cbb62178611383f8882f043bfaf206a700","target":"record","created_at":"2026-07-05T01:27:16Z","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":"4f212cea9c614146473988643c9c4680706a1f174bbf93862e977fee6f7285be","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-02-10T13:43:10Z","title_canon_sha256":"b3b3c926732c10e0ed037c9476feacf35166d46f4875b366b9b9ae249bfb88f0"},"schema_version":"1.0","source":{"id":"1802.04661","kind":"arxiv","version":2}},"canonical_sha256":"4d87d77440a2c9ff23252d0453077b2d7990919195168237c26d347fa93e70bf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4d87d77440a2c9ff23252d0453077b2d7990919195168237c26d347fa93e70bf","first_computed_at":"2026-07-05T01:27:16.545768Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:27:16.545768Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"y+M5p4apbH8wqOi+sUN+TjcYvjkoCvYEHSX3asd0G+fpoJ7IQBzqObR+u1VB7wLDuSByKB7LV3BVO5eoODFrDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:27:16.546305Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.04661","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:243cc3c56da73e31739e4daf1e06d3cbb62178611383f8882f043bfaf206a700","sha256:d71a71f359df8f954ee56f55337774475b180103bcc5a72595bc6c61ac6560dc"],"state_sha256":"599af04e9e6d4645eec8f1167b6929720049f940a0bb3bfaab3134f57663215a"}