{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:NSD2NBDKX4ZTSWDFYRZCO2FXVQ","short_pith_number":"pith:NSD2NBDK","schema_version":"1.0","canonical_sha256":"6c87a6846abf33395865c4722768b7ac3d34438512162b29aa1b03aaaabe3474","source":{"kind":"arxiv","id":"2411.16057","version":1},"attestation_state":"computed","paper":{"title":"Experimental demonstration of a space-time modulated airborne acoustic circulator","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Baizhan Xia, Chuanxing Bi, Matthieu Mallejac, Romain Fleury, Tinggui Chen","submitted_at":"2024-11-25T02:56:17Z","abstract_excerpt":"Achieving strongly nonreciprocal scattering in compact linear acoustic devices is a challenging task. One possible solution is the use of time-modulated resonators, however, their implementation in the realm of audible airborne acoustics is typically hindered by the difficulty to obtain large modulation depth and speeds while managing noise issues. Here, we propose a practical and cost-efficient route to realize simple modulated resonators and observe experimentally the strong nonreciprocal behavior of an acoustic circulator. We propose to modulate the neck cross-section areas of three coupled"},"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":"2411.16057","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2024-11-25T02:56:17Z","cross_cats_sorted":[],"title_canon_sha256":"ddb9c2f400db3ba74d20d3bc61e661a844dda13dd15fd5c52ea07b4d37f684bd","abstract_canon_sha256":"adeabdd891a44933d28b05067c973084ede356519d7c1e54c7f70174366fa427"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:40:03.246560Z","signature_b64":"47o54jrtoMDgnAkgT5Sg2o64RcwcT9B9DNn9c3HqCNeZ3gHKfulNiUMGIdSvs1T4YdfGIpc8WCmLEe8MKScSBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6c87a6846abf33395865c4722768b7ac3d34438512162b29aa1b03aaaabe3474","last_reissued_at":"2026-07-05T09:40:03.245991Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:40:03.245991Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Experimental demonstration of a space-time modulated airborne acoustic circulator","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Baizhan Xia, Chuanxing Bi, Matthieu Mallejac, Romain Fleury, Tinggui Chen","submitted_at":"2024-11-25T02:56:17Z","abstract_excerpt":"Achieving strongly nonreciprocal scattering in compact linear acoustic devices is a challenging task. One possible solution is the use of time-modulated resonators, however, their implementation in the realm of audible airborne acoustics is typically hindered by the difficulty to obtain large modulation depth and speeds while managing noise issues. Here, we propose a practical and cost-efficient route to realize simple modulated resonators and observe experimentally the strong nonreciprocal behavior of an acoustic circulator. We propose to modulate the neck cross-section areas of three coupled"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.16057","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2411.16057/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2411.16057","created_at":"2026-07-05T09:40:03.246071+00:00"},{"alias_kind":"arxiv_version","alias_value":"2411.16057v1","created_at":"2026-07-05T09:40:03.246071+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.16057","created_at":"2026-07-05T09:40:03.246071+00:00"},{"alias_kind":"pith_short_12","alias_value":"NSD2NBDKX4ZT","created_at":"2026-07-05T09:40:03.246071+00:00"},{"alias_kind":"pith_short_16","alias_value":"NSD2NBDKX4ZTSWDF","created_at":"2026-07-05T09:40:03.246071+00:00"},{"alias_kind":"pith_short_8","alias_value":"NSD2NBDK","created_at":"2026-07-05T09:40:03.246071+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/NSD2NBDKX4ZTSWDFYRZCO2FXVQ","json":"https://pith.science/pith/NSD2NBDKX4ZTSWDFYRZCO2FXVQ.json","graph_json":"https://pith.science/api/pith-number/NSD2NBDKX4ZTSWDFYRZCO2FXVQ/graph.json","events_json":"https://pith.science/api/pith-number/NSD2NBDKX4ZTSWDFYRZCO2FXVQ/events.json","paper":"https://pith.science/paper/NSD2NBDK"},"agent_actions":{"view_html":"https://pith.science/pith/NSD2NBDKX4ZTSWDFYRZCO2FXVQ","download_json":"https://pith.science/pith/NSD2NBDKX4ZTSWDFYRZCO2FXVQ.json","view_paper":"https://pith.science/paper/NSD2NBDK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2411.16057&json=true","fetch_graph":"https://pith.science/api/pith-number/NSD2NBDKX4ZTSWDFYRZCO2FXVQ/graph.json","fetch_events":"https://pith.science/api/pith-number/NSD2NBDKX4ZTSWDFYRZCO2FXVQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NSD2NBDKX4ZTSWDFYRZCO2FXVQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NSD2NBDKX4ZTSWDFYRZCO2FXVQ/action/storage_attestation","attest_author":"https://pith.science/pith/NSD2NBDKX4ZTSWDFYRZCO2FXVQ/action/author_attestation","sign_citation":"https://pith.science/pith/NSD2NBDKX4ZTSWDFYRZCO2FXVQ/action/citation_signature","submit_replication":"https://pith.science/pith/NSD2NBDKX4ZTSWDFYRZCO2FXVQ/action/replication_record"}},"created_at":"2026-07-05T09:40:03.246071+00:00","updated_at":"2026-07-05T09:40:03.246071+00:00"}