{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:Z5XJFOACM7MIFOPFOF7NDYDEW2","short_pith_number":"pith:Z5XJFOAC","canonical_record":{"source":{"id":"1611.01025","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2016-11-01T18:21:26Z","cross_cats_sorted":[],"title_canon_sha256":"ad9916dbed04218c432735770d1140db5d1121fc665bfe4fd7d9d4df8e3ace3e","abstract_canon_sha256":"71aadb55e7a9f0535e13a35cbfd0cc87380cc5cd41843b2245712bec6299d39a"},"schema_version":"1.0"},"canonical_sha256":"cf6e92b80267d882b9e5717ed1e064b6a6f20066625f21a9de71585e2e4d688d","source":{"kind":"arxiv","id":"1611.01025","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.01025","created_at":"2026-05-18T01:00:17Z"},{"alias_kind":"arxiv_version","alias_value":"1611.01025v1","created_at":"2026-05-18T01:00:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.01025","created_at":"2026-05-18T01:00:17Z"},{"alias_kind":"pith_short_12","alias_value":"Z5XJFOACM7MI","created_at":"2026-05-18T12:30:53Z"},{"alias_kind":"pith_short_16","alias_value":"Z5XJFOACM7MIFOPF","created_at":"2026-05-18T12:30:53Z"},{"alias_kind":"pith_short_8","alias_value":"Z5XJFOAC","created_at":"2026-05-18T12:30:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:Z5XJFOACM7MIFOPFOF7NDYDEW2","target":"record","payload":{"canonical_record":{"source":{"id":"1611.01025","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2016-11-01T18:21:26Z","cross_cats_sorted":[],"title_canon_sha256":"ad9916dbed04218c432735770d1140db5d1121fc665bfe4fd7d9d4df8e3ace3e","abstract_canon_sha256":"71aadb55e7a9f0535e13a35cbfd0cc87380cc5cd41843b2245712bec6299d39a"},"schema_version":"1.0"},"canonical_sha256":"cf6e92b80267d882b9e5717ed1e064b6a6f20066625f21a9de71585e2e4d688d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:00:17.887787Z","signature_b64":"NqjT6vlnRkOPSQmy72GYXv42LpiGDXKB9PLGOr5H879azH2K8Wa4oJjaqw5z3W5g0CrSokpgdsmZOaA7Mz/xBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cf6e92b80267d882b9e5717ed1e064b6a6f20066625f21a9de71585e2e4d688d","last_reissued_at":"2026-05-18T01:00:17.887104Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:00:17.887104Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1611.01025","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:00:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nZtMq+T1t7Of2FhCAwESbA4O1sf+wKLRN2dlcwrRMMN5jt6XRDiGQVkFOH2o0iLDhDBU/dyikQNwU/3sgRdhAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-03T12:18:29.200815Z"},"content_sha256":"2a30b645c5f0f7351c11635b3ce24b28c67aea631306cfbd8ceb2d4216d9e1ed","schema_version":"1.0","event_id":"sha256:2a30b645c5f0f7351c11635b3ce24b28c67aea631306cfbd8ceb2d4216d9e1ed"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:Z5XJFOACM7MIFOPFOF7NDYDEW2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Three-dimensional simulations of sound propagation in a trumpet with accurate mouthpiece shank geometry","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Janelle Resch, John Vanderkooy, Lilia Krivodonova","submitted_at":"2016-11-01T18:21:26Z","abstract_excerpt":"The length and bore geometry of musical instruments directly influences the quality of sound that can be produced. In brass instruments, nonlinear effects from finite-amplitude wave propagation can lead to wave distortion giving sounds a brassy timbre [3, 5, 14, 20, 26]. In this paper, we propose a three-dimensional model to describe nonlinear wave propagation in a trumpet and investigate the importance of the mouthpiece shank geometry. Time pressure waveforms corresponding to B_3(b) and B_4(b) notes were recorded at the mouthpiece shank and used as inputs for our model. To describe the motion"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.01025","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:00:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O6ZHdaV8JH39/bDkfYalaKdytF6WhYtCkzuNVzAiFgteX+i66YZ8EZW3neQTEUpfCuH3o1KUs/m0aKkO/5brCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-03T12:18:29.201149Z"},"content_sha256":"9315283276d76a5245803254edf496a9eb9e1db694280db74075ae1ab8883aa5","schema_version":"1.0","event_id":"sha256:9315283276d76a5245803254edf496a9eb9e1db694280db74075ae1ab8883aa5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z5XJFOACM7MIFOPFOF7NDYDEW2/bundle.json","state_url":"https://pith.science/pith/Z5XJFOACM7MIFOPFOF7NDYDEW2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z5XJFOACM7MIFOPFOF7NDYDEW2/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-07-03T12:18:29Z","links":{"resolver":"https://pith.science/pith/Z5XJFOACM7MIFOPFOF7NDYDEW2","bundle":"https://pith.science/pith/Z5XJFOACM7MIFOPFOF7NDYDEW2/bundle.json","state":"https://pith.science/pith/Z5XJFOACM7MIFOPFOF7NDYDEW2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z5XJFOACM7MIFOPFOF7NDYDEW2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:Z5XJFOACM7MIFOPFOF7NDYDEW2","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":"71aadb55e7a9f0535e13a35cbfd0cc87380cc5cd41843b2245712bec6299d39a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2016-11-01T18:21:26Z","title_canon_sha256":"ad9916dbed04218c432735770d1140db5d1121fc665bfe4fd7d9d4df8e3ace3e"},"schema_version":"1.0","source":{"id":"1611.01025","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.01025","created_at":"2026-05-18T01:00:17Z"},{"alias_kind":"arxiv_version","alias_value":"1611.01025v1","created_at":"2026-05-18T01:00:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.01025","created_at":"2026-05-18T01:00:17Z"},{"alias_kind":"pith_short_12","alias_value":"Z5XJFOACM7MI","created_at":"2026-05-18T12:30:53Z"},{"alias_kind":"pith_short_16","alias_value":"Z5XJFOACM7MIFOPF","created_at":"2026-05-18T12:30:53Z"},{"alias_kind":"pith_short_8","alias_value":"Z5XJFOAC","created_at":"2026-05-18T12:30:53Z"}],"graph_snapshots":[{"event_id":"sha256:9315283276d76a5245803254edf496a9eb9e1db694280db74075ae1ab8883aa5","target":"graph","created_at":"2026-05-18T01:00:17Z","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":"The length and bore geometry of musical instruments directly influences the quality of sound that can be produced. In brass instruments, nonlinear effects from finite-amplitude wave propagation can lead to wave distortion giving sounds a brassy timbre [3, 5, 14, 20, 26]. In this paper, we propose a three-dimensional model to describe nonlinear wave propagation in a trumpet and investigate the importance of the mouthpiece shank geometry. Time pressure waveforms corresponding to B_3(b) and B_4(b) notes were recorded at the mouthpiece shank and used as inputs for our model. To describe the motion","authors_text":"Janelle Resch, John Vanderkooy, Lilia Krivodonova","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2016-11-01T18:21:26Z","title":"Three-dimensional simulations of sound propagation in a trumpet with accurate mouthpiece shank geometry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.01025","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":"sha256:2a30b645c5f0f7351c11635b3ce24b28c67aea631306cfbd8ceb2d4216d9e1ed","target":"record","created_at":"2026-05-18T01:00:17Z","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":"71aadb55e7a9f0535e13a35cbfd0cc87380cc5cd41843b2245712bec6299d39a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2016-11-01T18:21:26Z","title_canon_sha256":"ad9916dbed04218c432735770d1140db5d1121fc665bfe4fd7d9d4df8e3ace3e"},"schema_version":"1.0","source":{"id":"1611.01025","kind":"arxiv","version":1}},"canonical_sha256":"cf6e92b80267d882b9e5717ed1e064b6a6f20066625f21a9de71585e2e4d688d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cf6e92b80267d882b9e5717ed1e064b6a6f20066625f21a9de71585e2e4d688d","first_computed_at":"2026-05-18T01:00:17.887104Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:00:17.887104Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NqjT6vlnRkOPSQmy72GYXv42LpiGDXKB9PLGOr5H879azH2K8Wa4oJjaqw5z3W5g0CrSokpgdsmZOaA7Mz/xBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:00:17.887787Z","signed_message":"canonical_sha256_bytes"},"source_id":"1611.01025","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2a30b645c5f0f7351c11635b3ce24b28c67aea631306cfbd8ceb2d4216d9e1ed","sha256:9315283276d76a5245803254edf496a9eb9e1db694280db74075ae1ab8883aa5"],"state_sha256":"b814513d127b42ae6e9a58b1a7fb3eeb2297637478484e3dbfc2b7e41716c275"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ky2GzfW/498dg/VYK3D81UN+02w72vavgSZK03R93FdSjbxcWwaCobzoailKM2DTXLY3oAscZbR9zeX3blT0DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-03T12:18:29.202953Z","bundle_sha256":"fd7fcadee4cff294dd3b2a838841a1d41f21630c6d633304297ade8fc264ff93"}}