{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:22655HDPNDYNIZVYVYJZ72YEUB","short_pith_number":"pith:22655HDP","schema_version":"1.0","canonical_sha256":"d6bdde9c6f68f0d466b8ae139feb04a07bc002dd0fe6b6f06669b2966312be00","source":{"kind":"arxiv","id":"1509.03711","version":1},"attestation_state":"computed","paper":{"title":"Subwavelength total acoustic absorption with degenerate resonators","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Caixing Fu, Chong Meng, Min Yang, Ping Sheng, Yong Li, Zhiyu Yang","submitted_at":"2015-09-12T06:40:30Z","abstract_excerpt":"We report the experimental realization of perfect sound absorption by sub-wavelength monopole and dipole resonators that exhibit degenerate resonant frequencies. This is achieved through the destructive interference of two resonators' transmission responses, while the matching of their averaged impedances to that of air implies no backscattering, thereby leading to total absorption. Two examples, both using decorated membrane resonators (DMRs) as the basic units, are presented. The first is a flat panel comprising a DMR and a pair of coupled DMRs, while the second one is a ventilated short tub"},"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":"1509.03711","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-09-12T06:40:30Z","cross_cats_sorted":[],"title_canon_sha256":"9e69240eae945bee39bde525f74a37460f9323b63b2ccd2ccff6de01b8e4e181","abstract_canon_sha256":"4234ffcd79a181e820abb5069d95a5a163be70e0ce962e2012a7557ad0b59931"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:31:30.828885Z","signature_b64":"aJFuLcdpJGNTMzMfYtPufBU5MnwE/pkjfcN7/3CSn4O6ZNIf/vonIt15+YnnGl1EYUqIBOaLSVCgLGIm1wU1Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d6bdde9c6f68f0d466b8ae139feb04a07bc002dd0fe6b6f06669b2966312be00","last_reissued_at":"2026-05-18T01:31:30.828206Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:31:30.828206Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Subwavelength total acoustic absorption with degenerate resonators","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Caixing Fu, Chong Meng, Min Yang, Ping Sheng, Yong Li, Zhiyu Yang","submitted_at":"2015-09-12T06:40:30Z","abstract_excerpt":"We report the experimental realization of perfect sound absorption by sub-wavelength monopole and dipole resonators that exhibit degenerate resonant frequencies. This is achieved through the destructive interference of two resonators' transmission responses, while the matching of their averaged impedances to that of air implies no backscattering, thereby leading to total absorption. Two examples, both using decorated membrane resonators (DMRs) as the basic units, are presented. The first is a flat panel comprising a DMR and a pair of coupled DMRs, while the second one is a ventilated short tub"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.03711","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":"1509.03711","created_at":"2026-05-18T01:31:30.828280+00:00"},{"alias_kind":"arxiv_version","alias_value":"1509.03711v1","created_at":"2026-05-18T01:31:30.828280+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.03711","created_at":"2026-05-18T01:31:30.828280+00:00"},{"alias_kind":"pith_short_12","alias_value":"22655HDPNDYN","created_at":"2026-05-18T12:28:59.999130+00:00"},{"alias_kind":"pith_short_16","alias_value":"22655HDPNDYNIZVY","created_at":"2026-05-18T12:28:59.999130+00:00"},{"alias_kind":"pith_short_8","alias_value":"22655HDP","created_at":"2026-05-18T12:28:59.999130+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/22655HDPNDYNIZVYVYJZ72YEUB","json":"https://pith.science/pith/22655HDPNDYNIZVYVYJZ72YEUB.json","graph_json":"https://pith.science/api/pith-number/22655HDPNDYNIZVYVYJZ72YEUB/graph.json","events_json":"https://pith.science/api/pith-number/22655HDPNDYNIZVYVYJZ72YEUB/events.json","paper":"https://pith.science/paper/22655HDP"},"agent_actions":{"view_html":"https://pith.science/pith/22655HDPNDYNIZVYVYJZ72YEUB","download_json":"https://pith.science/pith/22655HDPNDYNIZVYVYJZ72YEUB.json","view_paper":"https://pith.science/paper/22655HDP","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1509.03711&json=true","fetch_graph":"https://pith.science/api/pith-number/22655HDPNDYNIZVYVYJZ72YEUB/graph.json","fetch_events":"https://pith.science/api/pith-number/22655HDPNDYNIZVYVYJZ72YEUB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/22655HDPNDYNIZVYVYJZ72YEUB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/22655HDPNDYNIZVYVYJZ72YEUB/action/storage_attestation","attest_author":"https://pith.science/pith/22655HDPNDYNIZVYVYJZ72YEUB/action/author_attestation","sign_citation":"https://pith.science/pith/22655HDPNDYNIZVYVYJZ72YEUB/action/citation_signature","submit_replication":"https://pith.science/pith/22655HDPNDYNIZVYVYJZ72YEUB/action/replication_record"}},"created_at":"2026-05-18T01:31:30.828280+00:00","updated_at":"2026-05-18T01:31:30.828280+00:00"}