{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:H2SQ5IFDOT4UEKQM7KRRALSBUW","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":"2f55bf05df98c7275000a68d3b2d2af2154715277297e5608fb19fa73c53ddf3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-07-22T01:12:26Z","title_canon_sha256":"94463e83ad9ab1494742957a4cc30d0a13a204b254059e1105484d40f1e65874"},"schema_version":"1.0","source":{"id":"2407.15319","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.15319","created_at":"2026-07-05T09:33:35Z"},{"alias_kind":"arxiv_version","alias_value":"2407.15319v1","created_at":"2026-07-05T09:33:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.15319","created_at":"2026-07-05T09:33:35Z"},{"alias_kind":"pith_short_12","alias_value":"H2SQ5IFDOT4U","created_at":"2026-07-05T09:33:35Z"},{"alias_kind":"pith_short_16","alias_value":"H2SQ5IFDOT4UEKQM","created_at":"2026-07-05T09:33:35Z"},{"alias_kind":"pith_short_8","alias_value":"H2SQ5IFD","created_at":"2026-07-05T09:33:35Z"}],"graph_snapshots":[{"event_id":"sha256:128909ae86875d5161cb1a83171f76ba080401918aded1099bd75412a9069349","target":"graph","created_at":"2026-07-05T09:33:35Z","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/2407.15319/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Widefield quantum diamond microscopy is a powerful technique for imaging magnetic fields with high sensitivity and spatial resolution. However, current methods to approach the ultimate spatial resolution ($<500\\,$nm) are impractical for routine use as they require time-consuming fabrication or transfer techniques to precisely interface the diamond sensor with the sample to be imaged. To address this challenge, we have designed a co-axial sensor holder that enables simple, repeatable sensor-sample interfacing while being compatible with high numerical aperture (NA) optics. With our new design w","authors_text":"Alexander J. Healey, Alex Shaji, David Broadway, Islay O. Robertson, Jean-Philippe Tetienne, Kevin J. Rietwyk, Philipp Reineck, Priya Singh, Sam C. Scholten","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-07-22T01:12:26Z","title":"Towards high spatial resolution magnetic imaging with a compact practical quantum diamond microscope"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.15319","kind":"arxiv","version":1},"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":"sha256:4183261bab8b365cc639e1421f4c32b69274537e306fcefbadf0aff96dc01e8d","target":"record","created_at":"2026-07-05T09:33:35Z","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":"2f55bf05df98c7275000a68d3b2d2af2154715277297e5608fb19fa73c53ddf3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-07-22T01:12:26Z","title_canon_sha256":"94463e83ad9ab1494742957a4cc30d0a13a204b254059e1105484d40f1e65874"},"schema_version":"1.0","source":{"id":"2407.15319","kind":"arxiv","version":1}},"canonical_sha256":"3ea50ea0a374f9422a0cfaa3102e41a5a921de98882273bbb735adfe877584ef","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3ea50ea0a374f9422a0cfaa3102e41a5a921de98882273bbb735adfe877584ef","first_computed_at":"2026-07-05T09:33:35.517529Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:33:35.517529Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JG9fIqPvQwp9Chp+eDzMTnTs9LExw0FeqAnsKYAbh+Bg2oqenKevSDiS/vAMKT589yRDLWq01lQic1u0uZexCw==","signature_status":"signed_v1","signed_at":"2026-07-05T09:33:35.518154Z","signed_message":"canonical_sha256_bytes"},"source_id":"2407.15319","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4183261bab8b365cc639e1421f4c32b69274537e306fcefbadf0aff96dc01e8d","sha256:128909ae86875d5161cb1a83171f76ba080401918aded1099bd75412a9069349"],"state_sha256":"932cb31be4860b0d0dc22337adce01777db4ae93887c8bb2a9db9c9147eb50d6"}