{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:MYR56MGHTQPU2GB3QA5EIPIC3F","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":"751982ecdb6a0dee6463ef4130d3596a52b375e35364afc4d18568acc1a48b98","cross_cats_sorted":["physics.bio-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2012-11-08T15:25:59Z","title_canon_sha256":"78f4f4d57fd616b446dca22502d6f7e929b9ed9b1d366bbaa48467b1121c7044"},"schema_version":"1.0","source":{"id":"1211.1881","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.1881","created_at":"2026-05-18T02:12:11Z"},{"alias_kind":"arxiv_version","alias_value":"1211.1881v1","created_at":"2026-05-18T02:12:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.1881","created_at":"2026-05-18T02:12:11Z"},{"alias_kind":"pith_short_12","alias_value":"MYR56MGHTQPU","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"MYR56MGHTQPU2GB3","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"MYR56MGH","created_at":"2026-05-18T12:27:14Z"}],"graph_snapshots":[{"event_id":"sha256:6f9db6d4b78a45688afc617b8ae9277000e13752fd28c6f8e12d06f83e76fd02","target":"graph","created_at":"2026-05-18T02:12:11Z","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":"Dynamic-mode atomic force microscopy (AFM) in liquid remains complicated due to the strong viscous damping of the cantilever resonance. Here we show that a high-quality resonance (Q>20) can be achieved in aqueous solution by attaching a microgram-bead at the end of the nanogram-cantilever. The resulting increase in cantilever mass causes the resonance frequency to drop significantly. However, the force sensitivity --- as expressed via the minimum detectable force gradient --- is hardly affected, because of the enhanced quality factor. Via the enhancement of the quality factor, the attached bea","authors_text":"Bart W. Hoogenboom, Nitya Nand Gosvami, Sebastian Hoof","cross_cats":["physics.bio-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2012-11-08T15:25:59Z","title":"Enhanced quality factors and force sensitivity by attaching magnetic beads to cantilevers for atomic force microscopy in liquid"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.1881","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:ef045db0da90e1697b8e44031b6ebc724fe74e47abfeb3bf41af20df4b9285a7","target":"record","created_at":"2026-05-18T02:12:11Z","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":"751982ecdb6a0dee6463ef4130d3596a52b375e35364afc4d18568acc1a48b98","cross_cats_sorted":["physics.bio-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2012-11-08T15:25:59Z","title_canon_sha256":"78f4f4d57fd616b446dca22502d6f7e929b9ed9b1d366bbaa48467b1121c7044"},"schema_version":"1.0","source":{"id":"1211.1881","kind":"arxiv","version":1}},"canonical_sha256":"6623df30c79c1f4d183b803a443d02d977ed447b5dafa88eff3b4003218a0732","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6623df30c79c1f4d183b803a443d02d977ed447b5dafa88eff3b4003218a0732","first_computed_at":"2026-05-18T02:12:11.859454Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:12:11.859454Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NDAkJ0jumji63aaePI4PNCYD09jtCE0l2Icdav+NQKweSuf3aV4c/QUz2waj57YVBainlMBBB3NTx43jGaL4Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:12:11.860162Z","signed_message":"canonical_sha256_bytes"},"source_id":"1211.1881","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ef045db0da90e1697b8e44031b6ebc724fe74e47abfeb3bf41af20df4b9285a7","sha256:6f9db6d4b78a45688afc617b8ae9277000e13752fd28c6f8e12d06f83e76fd02"],"state_sha256":"966e2e192de6c695c4e0b1bd5e62cbe1d42d2f2fc3d2f986372d439c49c20e2b"}