{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:X4T77D4JMUVMFR7EW5BV2WRFAI","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":"af8a552b213100d4584973f743304e2b77c8143eca97589f39321548363334fd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2014-07-14T06:45:04Z","title_canon_sha256":"50e981dc0dead28648ec83f4833628f3f4c18dac913cadec7eb6559b28e20db3"},"schema_version":"1.0","source":{"id":"1407.3547","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.3547","created_at":"2026-05-18T02:47:42Z"},{"alias_kind":"arxiv_version","alias_value":"1407.3547v1","created_at":"2026-05-18T02:47:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.3547","created_at":"2026-05-18T02:47:42Z"},{"alias_kind":"pith_short_12","alias_value":"X4T77D4JMUVM","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"X4T77D4JMUVMFR7E","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"X4T77D4J","created_at":"2026-05-18T12:28:54Z"}],"graph_snapshots":[{"event_id":"sha256:c607237b943ca5a5ff68f3eb0c926922109e5b76040e26809566022b00abd7a3","target":"graph","created_at":"2026-05-18T02:47:42Z","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":"Simple models of clarinet instruments based on iterated maps have been used in the past to successfully estimate the threshold of oscillation of this instrument as a function of a constant blowing pressure. However, when the blowing pressure gradually increases through time, the oscillations appear at a much higher value, called dynamic oscillation threshold, than what is predicted in the static case. This is known as bifurcation delay, a phenomenon studied in [1,2] for a clarinet model. In particular the dynamic oscillation threshold is predicted analytically when the blowing pressure is line","authors_text":"Andr\\'e Almeida (LAUM), Baptiste Bergeot (LMA_CNRS), Christophe Vergez (LMA_CNRS)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2014-07-14T06:45:04Z","title":"Effect of the shape of mouth pressure variation on dynamic oscillation threshold of a clarinet model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.3547","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":"sha256:77945d31cd00afadcd3261b2553c55e842452f832639360e43a5694dd3cd95e3","target":"record","created_at":"2026-05-18T02:47:42Z","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":"af8a552b213100d4584973f743304e2b77c8143eca97589f39321548363334fd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2014-07-14T06:45:04Z","title_canon_sha256":"50e981dc0dead28648ec83f4833628f3f4c18dac913cadec7eb6559b28e20db3"},"schema_version":"1.0","source":{"id":"1407.3547","kind":"arxiv","version":1}},"canonical_sha256":"bf27ff8f89652ac2c7e4b7435d5a250222aac24858f9560033b090785e10798c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bf27ff8f89652ac2c7e4b7435d5a250222aac24858f9560033b090785e10798c","first_computed_at":"2026-05-18T02:47:42.512761Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:47:42.512761Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"j3mdJYhhMytmF4GzZE4YfMk9gETb1T2MOqNZ48EbqeXQMglTlyF37URMLeZToCusio4U7O57TM4nlIrASBmsCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:47:42.513589Z","signed_message":"canonical_sha256_bytes"},"source_id":"1407.3547","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:77945d31cd00afadcd3261b2553c55e842452f832639360e43a5694dd3cd95e3","sha256:c607237b943ca5a5ff68f3eb0c926922109e5b76040e26809566022b00abd7a3"],"state_sha256":"6812725a2a4c3fbcd9d52cb597f33262f0df312177313985bde30bd341d3f8bf"}