{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:TVIFWRCVJ2LY74ZSMHGJ2X42NP","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":"c6c47eb0810d35aa2bd85aa143090094fabeee2694aa2e27c38eed0f2f1ede3d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2011-01-25T08:08:03Z","title_canon_sha256":"6eb3b50d33272eae4923a912b2294986cfc44367fe8924de791075bf87d3705b"},"schema_version":"1.0","source":{"id":"1101.4742","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.4742","created_at":"2026-05-18T04:15:16Z"},{"alias_kind":"arxiv_version","alias_value":"1101.4742v2","created_at":"2026-05-18T04:15:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.4742","created_at":"2026-05-18T04:15:16Z"},{"alias_kind":"pith_short_12","alias_value":"TVIFWRCVJ2LY","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_16","alias_value":"TVIFWRCVJ2LY74ZS","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_8","alias_value":"TVIFWRCV","created_at":"2026-05-18T12:26:42Z"}],"graph_snapshots":[{"event_id":"sha256:f33cb9c0467b0a3bc2b4478e2418ccacb6d427abc48046c9e6de38a7a4b86bec","target":"graph","created_at":"2026-05-18T04:15:16Z","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 characteristic of woodwind instruments is the cutoff frequency of their tone-hole lattice. Benade proposed a practical definition using the measurement of the input impedance, for which at least two frequency bands appear. The first one is a stop band, while the second one is a pass band. The value of this frequency, which is a global quantity, depends on the whole geometry of the instrument, but is rather independent of the fingering. This seems to justify the consideration of a woodwind with several open holes as a periodic lattice. However the holes on a clarinet are very irregular. The p","authors_text":"Elise Moers (LMA), Jean Kergomard (LMA)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2011-01-25T08:08:03Z","title":"On the cutoff frequency of clarinet-like instruments. Geometrical versus acoustical regularity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.4742","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:c3146b6042ffea2d1b59c0b40cbd57eab6ebb9d6cfa47062b425dfddbf2034b3","target":"record","created_at":"2026-05-18T04:15:16Z","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":"c6c47eb0810d35aa2bd85aa143090094fabeee2694aa2e27c38eed0f2f1ede3d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2011-01-25T08:08:03Z","title_canon_sha256":"6eb3b50d33272eae4923a912b2294986cfc44367fe8924de791075bf87d3705b"},"schema_version":"1.0","source":{"id":"1101.4742","kind":"arxiv","version":2}},"canonical_sha256":"9d505b44554e978ff33261cc9d5f9a6bd0c6b569f217184854ba25eeb4b7cafb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9d505b44554e978ff33261cc9d5f9a6bd0c6b569f217184854ba25eeb4b7cafb","first_computed_at":"2026-05-18T04:15:16.440759Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:15:16.440759Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tqamv/yiqXcGOGonPyLTrkcdJM7K+k5GQf3HBColGLl2ckuUMLJlTsdFG25i8+wk9E6+JlXgK0jfWryaLQ6/AA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:15:16.441308Z","signed_message":"canonical_sha256_bytes"},"source_id":"1101.4742","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c3146b6042ffea2d1b59c0b40cbd57eab6ebb9d6cfa47062b425dfddbf2034b3","sha256:f33cb9c0467b0a3bc2b4478e2418ccacb6d427abc48046c9e6de38a7a4b86bec"],"state_sha256":"226507473bdea914fc6ce784ce0ad9d06d5f1ad89492a5bf61ec8fbbd83e437d"}