{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:CEBGJJIHQLK4UNLD4QZXG32WO2","short_pith_number":"pith:CEBGJJIH","schema_version":"1.0","canonical_sha256":"110264a50782d5ca3563e433736f5676958ff9c48643a23ac450bfbf854b2d51","source":{"kind":"arxiv","id":"1511.09285","version":1},"attestation_state":"computed","paper":{"title":"Acoustic coupling between cascade sub-chambers and its influence on overall transmission loss","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.class-ph","authors_text":"Jie Pan, Xiang Yu, Yuhui Tong","submitted_at":"2015-11-30T12:59:52Z","abstract_excerpt":"In this letter, acoustic interaction between cascade sub-chambers is investigated by modelling the sound field in a silencer with cascade-connected sub-chambers using a sub-structuring technique. The contribution of the acoustic coupling to the net energy flow through each individual sub-chamber is derived quantitatively and the mechanism by which evanescence contributes to the sound transmission loss of the silencer is revealed."},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1511.09285","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2015-11-30T12:59:52Z","cross_cats_sorted":[],"title_canon_sha256":"98009ba92530a2c6b4526211993c1223696cefcd63a8ede59d311d6670ddc3d4","abstract_canon_sha256":"81cb2c48c9468be12048fa61b41bf86633d7c9816471e2294830672a2eb73a2d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:25:40.644766Z","signature_b64":"iETn2sZ6VIkaHGazTSx21MlrjbG6vgqYdUDvezf1zpKEVsH/pBjArdy5xzV+nzDfWZDXEkXPRHCYQrygpwF/DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"110264a50782d5ca3563e433736f5676958ff9c48643a23ac450bfbf854b2d51","last_reissued_at":"2026-05-18T01:25:40.644189Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:25:40.644189Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Acoustic coupling between cascade sub-chambers and its influence on overall transmission loss","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.class-ph","authors_text":"Jie Pan, Xiang Yu, Yuhui Tong","submitted_at":"2015-11-30T12:59:52Z","abstract_excerpt":"In this letter, acoustic interaction between cascade sub-chambers is investigated by modelling the sound field in a silencer with cascade-connected sub-chambers using a sub-structuring technique. The contribution of the acoustic coupling to the net energy flow through each individual sub-chamber is derived quantitatively and the mechanism by which evanescence contributes to the sound transmission loss of the silencer is revealed."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.09285","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1511.09285","created_at":"2026-05-18T01:25:40.644281+00:00"},{"alias_kind":"arxiv_version","alias_value":"1511.09285v1","created_at":"2026-05-18T01:25:40.644281+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.09285","created_at":"2026-05-18T01:25:40.644281+00:00"},{"alias_kind":"pith_short_12","alias_value":"CEBGJJIHQLK4","created_at":"2026-05-18T12:29:14.074870+00:00"},{"alias_kind":"pith_short_16","alias_value":"CEBGJJIHQLK4UNLD","created_at":"2026-05-18T12:29:14.074870+00:00"},{"alias_kind":"pith_short_8","alias_value":"CEBGJJIH","created_at":"2026-05-18T12:29:14.074870+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/CEBGJJIHQLK4UNLD4QZXG32WO2","json":"https://pith.science/pith/CEBGJJIHQLK4UNLD4QZXG32WO2.json","graph_json":"https://pith.science/api/pith-number/CEBGJJIHQLK4UNLD4QZXG32WO2/graph.json","events_json":"https://pith.science/api/pith-number/CEBGJJIHQLK4UNLD4QZXG32WO2/events.json","paper":"https://pith.science/paper/CEBGJJIH"},"agent_actions":{"view_html":"https://pith.science/pith/CEBGJJIHQLK4UNLD4QZXG32WO2","download_json":"https://pith.science/pith/CEBGJJIHQLK4UNLD4QZXG32WO2.json","view_paper":"https://pith.science/paper/CEBGJJIH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1511.09285&json=true","fetch_graph":"https://pith.science/api/pith-number/CEBGJJIHQLK4UNLD4QZXG32WO2/graph.json","fetch_events":"https://pith.science/api/pith-number/CEBGJJIHQLK4UNLD4QZXG32WO2/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CEBGJJIHQLK4UNLD4QZXG32WO2/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CEBGJJIHQLK4UNLD4QZXG32WO2/action/storage_attestation","attest_author":"https://pith.science/pith/CEBGJJIHQLK4UNLD4QZXG32WO2/action/author_attestation","sign_citation":"https://pith.science/pith/CEBGJJIHQLK4UNLD4QZXG32WO2/action/citation_signature","submit_replication":"https://pith.science/pith/CEBGJJIHQLK4UNLD4QZXG32WO2/action/replication_record"}},"created_at":"2026-05-18T01:25:40.644281+00:00","updated_at":"2026-05-18T01:25:40.644281+00:00"}