{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:HL77S4UMWQRHT4YKKOWVCUMV4P","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":"16aa1189725a3cba16853d937b31aa1bdf2b60cbaa35585d07dba637b5ca3a25","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2012-02-09T16:10:36Z","title_canon_sha256":"b6f4f6cd187dabf4cf3f97bdbbddfafc87684b91afa845623e79e9a5bd250549"},"schema_version":"1.0","source":{"id":"1202.2114","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.2114","created_at":"2026-05-18T02:52:40Z"},{"alias_kind":"arxiv_version","alias_value":"1202.2114v2","created_at":"2026-05-18T02:52:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.2114","created_at":"2026-05-18T02:52:40Z"},{"alias_kind":"pith_short_12","alias_value":"HL77S4UMWQRH","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_16","alias_value":"HL77S4UMWQRHT4YK","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_8","alias_value":"HL77S4UM","created_at":"2026-05-18T12:27:09Z"}],"graph_snapshots":[{"event_id":"sha256:42c0b0a8e00796a086779d3dc906d7fe7ac13938c4fd129d33ea2ce28dc49bdc","target":"graph","created_at":"2026-05-18T02:52:40Z","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":"A set of 55 clarinet reeds is observed by holography, collecting 2 series of measurements made under 2 different moisture contents, from which the resonance frequencies of the 15 first modes are deduced. A statistical analysis of the results reveals good correlations, but also significant differences between both series. Within a given series, flexural modes are not strongly correlated. A Principal Component Analysis (PCA) shows that the measurements of each series can be described with 3 factors capturing more than $90\\%$ of the variance: the first is linked with transverse modes, the second ","authors_text":"Franck Lalo\\\"e (LKB - Lhomond), Jean Kergomard (LMA), Jean-Pierre Dalmont (LAUM), Michel Gross (L2C), Pierre-Andr\\'e Taillard","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2012-02-09T16:10:36Z","title":"Statistical Estimation of Mechanical Parameters of Clarinet Reeds Using Experimental and Numerical Approaches"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.2114","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":"sha256:923b5e64bb435c3cf5de45b2cc6dafc1c566d18911ffd4b701592caf139a53fd","target":"record","created_at":"2026-05-18T02:52:40Z","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":"16aa1189725a3cba16853d937b31aa1bdf2b60cbaa35585d07dba637b5ca3a25","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2012-02-09T16:10:36Z","title_canon_sha256":"b6f4f6cd187dabf4cf3f97bdbbddfafc87684b91afa845623e79e9a5bd250549"},"schema_version":"1.0","source":{"id":"1202.2114","kind":"arxiv","version":2}},"canonical_sha256":"3afff9728cb42279f30a53ad515195e3de8d9bb84a34e9239d55717f84588d00","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3afff9728cb42279f30a53ad515195e3de8d9bb84a34e9239d55717f84588d00","first_computed_at":"2026-05-18T02:52:40.168475Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:52:40.168475Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2Ymf5O5uuAqdSRSy8AvJyUhBSuIDjNu3P+rfBYUO85bdDH0skmGuGzERTA3xFp8ux6NyeeAOPW3RWGsc1HmLCA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:52:40.169106Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.2114","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:923b5e64bb435c3cf5de45b2cc6dafc1c566d18911ffd4b701592caf139a53fd","sha256:42c0b0a8e00796a086779d3dc906d7fe7ac13938c4fd129d33ea2ce28dc49bdc"],"state_sha256":"4085d4fd1b4ec401f4cdfcd4a45c22ea57a315312a43eafc0531b3688f8a849a"}