{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:5OKELLFGPRSW3SKAWSEM7C4BJ4","short_pith_number":"pith:5OKELLFG","schema_version":"1.0","canonical_sha256":"eb9445aca67c656dc940b488cf8b814f288f4ccdc745542f3a38a19adac2727f","source":{"kind":"arxiv","id":"1805.08101","version":1},"attestation_state":"computed","paper":{"title":"Calibrating torsional eigenmodes of micro cantilevers for dynamic measurement of frictional forces","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Daniel Forchheimer, David B. Haviland, Per-Anders Thor\\'en, Riccardo Borgani","submitted_at":"2018-05-21T14:58:19Z","abstract_excerpt":"Non-invasive thermal noise calibration of both torsional and flexural eigenmodes is performed on numerous cantilevers of 10 different types. We show that for all tipless and short-tipped cantilevers, the ratio of torsional to flexural mode stiffness is given by a constant, times the ratio of their resonant frequencies. By determining this constant we enable a calibration of the torsional eigenmode, starting from a calibration of the flexural eigenmode. Our results are well motivated from beam theory and we verify them with finite element simulation."},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1805.08101","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-05-21T14:58:19Z","cross_cats_sorted":[],"title_canon_sha256":"11e6ce0dd0cd850e1bdcd5aeb5fe087095e913f0df243f585afb58ce1f74115a","abstract_canon_sha256":"7afc47680029eecc0721bbed2f7a23699f8d8974533209bdb6dff9f947c1b0b7"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:08:06.871671Z","signature_b64":"emTsxVIaddCeOsI+6UwetAAT4hDikvhuOO0BSlrLECHLruEq9Sk6kcp9CPpKiDP+zpcol48P8Tr1GZkV0SI5Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eb9445aca67c656dc940b488cf8b814f288f4ccdc745542f3a38a19adac2727f","last_reissued_at":"2026-05-18T00:08:06.871242Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:08:06.871242Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Calibrating torsional eigenmodes of micro cantilevers for dynamic measurement of frictional forces","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Daniel Forchheimer, David B. Haviland, Per-Anders Thor\\'en, Riccardo Borgani","submitted_at":"2018-05-21T14:58:19Z","abstract_excerpt":"Non-invasive thermal noise calibration of both torsional and flexural eigenmodes is performed on numerous cantilevers of 10 different types. We show that for all tipless and short-tipped cantilevers, the ratio of torsional to flexural mode stiffness is given by a constant, times the ratio of their resonant frequencies. By determining this constant we enable a calibration of the torsional eigenmode, starting from a calibration of the flexural eigenmode. Our results are well motivated from beam theory and we verify them with finite element simulation."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.08101","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1805.08101","created_at":"2026-05-18T00:08:06.871303+00:00"},{"alias_kind":"arxiv_version","alias_value":"1805.08101v1","created_at":"2026-05-18T00:08:06.871303+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.08101","created_at":"2026-05-18T00:08:06.871303+00:00"},{"alias_kind":"pith_short_12","alias_value":"5OKELLFGPRSW","created_at":"2026-05-18T12:32:08.215937+00:00"},{"alias_kind":"pith_short_16","alias_value":"5OKELLFGPRSW3SKA","created_at":"2026-05-18T12:32:08.215937+00:00"},{"alias_kind":"pith_short_8","alias_value":"5OKELLFG","created_at":"2026-05-18T12:32:08.215937+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/5OKELLFGPRSW3SKAWSEM7C4BJ4","json":"https://pith.science/pith/5OKELLFGPRSW3SKAWSEM7C4BJ4.json","graph_json":"https://pith.science/api/pith-number/5OKELLFGPRSW3SKAWSEM7C4BJ4/graph.json","events_json":"https://pith.science/api/pith-number/5OKELLFGPRSW3SKAWSEM7C4BJ4/events.json","paper":"https://pith.science/paper/5OKELLFG"},"agent_actions":{"view_html":"https://pith.science/pith/5OKELLFGPRSW3SKAWSEM7C4BJ4","download_json":"https://pith.science/pith/5OKELLFGPRSW3SKAWSEM7C4BJ4.json","view_paper":"https://pith.science/paper/5OKELLFG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1805.08101&json=true","fetch_graph":"https://pith.science/api/pith-number/5OKELLFGPRSW3SKAWSEM7C4BJ4/graph.json","fetch_events":"https://pith.science/api/pith-number/5OKELLFGPRSW3SKAWSEM7C4BJ4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5OKELLFGPRSW3SKAWSEM7C4BJ4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5OKELLFGPRSW3SKAWSEM7C4BJ4/action/storage_attestation","attest_author":"https://pith.science/pith/5OKELLFGPRSW3SKAWSEM7C4BJ4/action/author_attestation","sign_citation":"https://pith.science/pith/5OKELLFGPRSW3SKAWSEM7C4BJ4/action/citation_signature","submit_replication":"https://pith.science/pith/5OKELLFGPRSW3SKAWSEM7C4BJ4/action/replication_record"}},"created_at":"2026-05-18T00:08:06.871303+00:00","updated_at":"2026-05-18T00:08:06.871303+00:00"}