{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:7TSCU7FITONE73VJJBF2TLEB2Q","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":"e672002f00d6c5d3f9ed73eb91a928d2dbe2769dc5d4e6af5f5e203f42234f62","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2026-01-13T16:42:18Z","title_canon_sha256":"f116688305d400469964c9f2b8775b5dc2e0fc49bf42da00f05dab9367822da4"},"schema_version":"1.0","source":{"id":"2601.08716","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2601.08716","created_at":"2026-06-12T01:09:20Z"},{"alias_kind":"arxiv_version","alias_value":"2601.08716v2","created_at":"2026-06-12T01:09:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2601.08716","created_at":"2026-06-12T01:09:20Z"},{"alias_kind":"pith_short_12","alias_value":"7TSCU7FITONE","created_at":"2026-06-12T01:09:20Z"},{"alias_kind":"pith_short_16","alias_value":"7TSCU7FITONE73VJ","created_at":"2026-06-12T01:09:20Z"},{"alias_kind":"pith_short_8","alias_value":"7TSCU7FI","created_at":"2026-06-12T01:09:20Z"}],"graph_snapshots":[{"event_id":"sha256:bcb398c751741e84945b61455f8575d9371b3cdfb33e6ec5e695f828e1be53a3","target":"graph","created_at":"2026-06-12T01:09:20Z","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/2601.08716/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Optically pumped atomic magnetometers (OPAMs) offer high sensitivity at room temperature and are increasingly considered for portable magnetic sensing in geomagnetic-field environments. Here we report a handheld-scale, single-beam scalar $^{87}$Rb OPAM with a sensor-head volume of approximately 110~mL. The device operates in an all-optical Bell-Bloom configuration and uses digital lock-in, dispersive tracking of the $^{87}$Rb Larmor resonance, implemented with a hybrid electronics stack that combines in-house control hardware with commercial modules. A single frequency-modulated laser beam per","authors_text":"Deok-Young Lee, Heonsik Lee, Hyunbeen Lee, Minseok Choi, Yoontae Hwang","cross_cats":["physics.app-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2026-01-13T16:42:18Z","title":"Portable Single-Beam Atomic Total-Field Magnetometer for Stand-off Magnetic Sensing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2601.08716","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:bf2fbc021603cf4b3e2f625018ecc6a3f24883850424541c15f8948028e3c222","target":"record","created_at":"2026-06-12T01:09:20Z","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":"e672002f00d6c5d3f9ed73eb91a928d2dbe2769dc5d4e6af5f5e203f42234f62","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2026-01-13T16:42:18Z","title_canon_sha256":"f116688305d400469964c9f2b8775b5dc2e0fc49bf42da00f05dab9367822da4"},"schema_version":"1.0","source":{"id":"2601.08716","kind":"arxiv","version":2}},"canonical_sha256":"fce42a7ca89b9a4feea9484ba9ac81d42dfde02a87e86fc7163a3f3c090a213d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fce42a7ca89b9a4feea9484ba9ac81d42dfde02a87e86fc7163a3f3c090a213d","first_computed_at":"2026-06-12T01:09:20.165122Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-12T01:09:20.165122Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zUJpMmCy+FwoW0ItaW+vcguJScFFaC0rltZdv33tj/OKPOu9vXmvq+FuJ9sP4wKAN2CyOsdtCA0Njzp7u7LFCA==","signature_status":"signed_v1","signed_at":"2026-06-12T01:09:20.165892Z","signed_message":"canonical_sha256_bytes"},"source_id":"2601.08716","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bf2fbc021603cf4b3e2f625018ecc6a3f24883850424541c15f8948028e3c222","sha256:bcb398c751741e84945b61455f8575d9371b3cdfb33e6ec5e695f828e1be53a3"],"state_sha256":"0a6df8ba89deb4dfde9d0006b82fb31b05a630036260d4c4f8c665b8a356cb94"}