{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:JRVLL2FBN25LQZG446M6IHZSMI","short_pith_number":"pith:JRVLL2FB","canonical_record":{"source":{"id":"1308.5214","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"physics.med-ph","submitted_at":"2013-08-23T19:13:52Z","cross_cats_sorted":["physics.class-ph"],"title_canon_sha256":"5e9ff16311521d7eeeb0db31c18e5a0d3b842a1d05305cbb27416b49c349d9d4","abstract_canon_sha256":"ff9b78ba0b286b454e507bcaccaea8b7c01d5b8bcda75cd8c9fda5cee5caf097"},"schema_version":"1.0"},"canonical_sha256":"4c6ab5e8a16ebab864dce799e41f32622cf06c45380839a6c78818bd2e9c41f8","source":{"kind":"arxiv","id":"1308.5214","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.5214","created_at":"2026-05-18T03:15:07Z"},{"alias_kind":"arxiv_version","alias_value":"1308.5214v1","created_at":"2026-05-18T03:15:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.5214","created_at":"2026-05-18T03:15:07Z"},{"alias_kind":"pith_short_12","alias_value":"JRVLL2FBN25L","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"JRVLL2FBN25LQZG4","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"JRVLL2FB","created_at":"2026-05-18T12:27:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:JRVLL2FBN25LQZG446M6IHZSMI","target":"record","payload":{"canonical_record":{"source":{"id":"1308.5214","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"physics.med-ph","submitted_at":"2013-08-23T19:13:52Z","cross_cats_sorted":["physics.class-ph"],"title_canon_sha256":"5e9ff16311521d7eeeb0db31c18e5a0d3b842a1d05305cbb27416b49c349d9d4","abstract_canon_sha256":"ff9b78ba0b286b454e507bcaccaea8b7c01d5b8bcda75cd8c9fda5cee5caf097"},"schema_version":"1.0"},"canonical_sha256":"4c6ab5e8a16ebab864dce799e41f32622cf06c45380839a6c78818bd2e9c41f8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:15:07.773080Z","signature_b64":"UudRHLOpEn1rms2f36n9DQFCTnNDdnoQ8NzvORCyYatvqx6ZoXQyuAYRndnXx5GE/6rF4Xvq+T3NtDYNeLZBDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4c6ab5e8a16ebab864dce799e41f32622cf06c45380839a6c78818bd2e9c41f8","last_reissued_at":"2026-05-18T03:15:07.772175Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:15:07.772175Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1308.5214","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":"2026-05-18T03:15:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VkvGkvqV2bAUoakjgujWYRPZMWDjUgBMikEbFpgwUXPhqVjxwvedF+rkmAsLV9ItlGmK7lP+EyapPkcZ1QSvDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T03:06:54.739004Z"},"content_sha256":"2873259e412fdaa1def72260ba1043de03abb8e605074db521edd09e582086c5","schema_version":"1.0","event_id":"sha256:2873259e412fdaa1def72260ba1043de03abb8e605074db521edd09e582086c5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:JRVLL2FBN25LQZG446M6IHZSMI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Intraoral Pressure in Ethnic Wind Instruments","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","headline":"","cross_cats":["physics.class-ph"],"primary_cat":"physics.med-ph","authors_text":"Clinton F. Goss","submitted_at":"2013-08-23T19:13:52Z","abstract_excerpt":"High intraoral pressure generated when playing some wind instruments has been linked to a variety of health issues. Prior research has focused on Western classical instruments, but no work has been published on ethnic wind instruments. This study measured intraoral pressure when playing six classes of ethnic wind instruments (N = 149): Native American flutes (n = 71) and smaller samples of ethnic duct flutes, reed instruments, reedpipes, overtone whistles, and overtone flutes. Results are presented in the context of a survey of prior studies, providing a composite view of the intraoral pressur"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.5214","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":"2026-05-18T03:15:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yHCHt5Gc1CAblzRgRn2dPlOV6pW8G4ceMUAPsswXIDZ9C5qiA7InuWnNvQG2Xyn1qqFNgcMbBlVeSdoD4qFYAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T03:06:54.739567Z"},"content_sha256":"cb308e18f491e08ebf1cee0e9fd3d6f3db0d527364c5d284f6302b44c89d3e8d","schema_version":"1.0","event_id":"sha256:cb308e18f491e08ebf1cee0e9fd3d6f3db0d527364c5d284f6302b44c89d3e8d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JRVLL2FBN25LQZG446M6IHZSMI/bundle.json","state_url":"https://pith.science/pith/JRVLL2FBN25LQZG446M6IHZSMI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JRVLL2FBN25LQZG446M6IHZSMI/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":"2026-06-07T03:06:54Z","links":{"resolver":"https://pith.science/pith/JRVLL2FBN25LQZG446M6IHZSMI","bundle":"https://pith.science/pith/JRVLL2FBN25LQZG446M6IHZSMI/bundle.json","state":"https://pith.science/pith/JRVLL2FBN25LQZG446M6IHZSMI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JRVLL2FBN25LQZG446M6IHZSMI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:JRVLL2FBN25LQZG446M6IHZSMI","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":"ff9b78ba0b286b454e507bcaccaea8b7c01d5b8bcda75cd8c9fda5cee5caf097","cross_cats_sorted":["physics.class-ph"],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"physics.med-ph","submitted_at":"2013-08-23T19:13:52Z","title_canon_sha256":"5e9ff16311521d7eeeb0db31c18e5a0d3b842a1d05305cbb27416b49c349d9d4"},"schema_version":"1.0","source":{"id":"1308.5214","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.5214","created_at":"2026-05-18T03:15:07Z"},{"alias_kind":"arxiv_version","alias_value":"1308.5214v1","created_at":"2026-05-18T03:15:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.5214","created_at":"2026-05-18T03:15:07Z"},{"alias_kind":"pith_short_12","alias_value":"JRVLL2FBN25L","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"JRVLL2FBN25LQZG4","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"JRVLL2FB","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:cb308e18f491e08ebf1cee0e9fd3d6f3db0d527364c5d284f6302b44c89d3e8d","target":"graph","created_at":"2026-05-18T03:15:07Z","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":"High intraoral pressure generated when playing some wind instruments has been linked to a variety of health issues. Prior research has focused on Western classical instruments, but no work has been published on ethnic wind instruments. This study measured intraoral pressure when playing six classes of ethnic wind instruments (N = 149): Native American flutes (n = 71) and smaller samples of ethnic duct flutes, reed instruments, reedpipes, overtone whistles, and overtone flutes. Results are presented in the context of a survey of prior studies, providing a composite view of the intraoral pressur","authors_text":"Clinton F. Goss","cross_cats":["physics.class-ph"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"physics.med-ph","submitted_at":"2013-08-23T19:13:52Z","title":"Intraoral Pressure in Ethnic Wind Instruments"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.5214","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":"sha256:2873259e412fdaa1def72260ba1043de03abb8e605074db521edd09e582086c5","target":"record","created_at":"2026-05-18T03:15:07Z","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":"ff9b78ba0b286b454e507bcaccaea8b7c01d5b8bcda75cd8c9fda5cee5caf097","cross_cats_sorted":["physics.class-ph"],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"physics.med-ph","submitted_at":"2013-08-23T19:13:52Z","title_canon_sha256":"5e9ff16311521d7eeeb0db31c18e5a0d3b842a1d05305cbb27416b49c349d9d4"},"schema_version":"1.0","source":{"id":"1308.5214","kind":"arxiv","version":1}},"canonical_sha256":"4c6ab5e8a16ebab864dce799e41f32622cf06c45380839a6c78818bd2e9c41f8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4c6ab5e8a16ebab864dce799e41f32622cf06c45380839a6c78818bd2e9c41f8","first_computed_at":"2026-05-18T03:15:07.772175Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:15:07.772175Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UudRHLOpEn1rms2f36n9DQFCTnNDdnoQ8NzvORCyYatvqx6ZoXQyuAYRndnXx5GE/6rF4Xvq+T3NtDYNeLZBDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:15:07.773080Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.5214","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2873259e412fdaa1def72260ba1043de03abb8e605074db521edd09e582086c5","sha256:cb308e18f491e08ebf1cee0e9fd3d6f3db0d527364c5d284f6302b44c89d3e8d"],"state_sha256":"712fd3795c10ff41bfba88b85d5a61ca638720f1da505025018885ef61282e15"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t+hP+jU54iXPymExFZxN2EE99ERATB5LFen0bKZvWdStgJdPk1gVKRw35qtHznYSBEQdaYtHnemQH1hdXdrsAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T03:06:54.742677Z","bundle_sha256":"50977db63a9e389f46b255459f80d243d51074eb3c62cc93c773376a5ab110b0"}}