{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:ROJ2QVSKOJG56UYJBC6RIMS3OD","short_pith_number":"pith:ROJ2QVSK","schema_version":"1.0","canonical_sha256":"8b93a8564a724ddf530908bd14325b70e3d81b2786195ed3c1f4dac811dd8e48","source":{"kind":"arxiv","id":"2607.13026","version":1},"attestation_state":"computed","paper":{"title":"Non-intrusive MEMS microphone sensing of acoustic field state in resonant acoustic levitators","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"physics.app-ph","authors_text":"Alexander A. Altmann, Chuanchao Xu, Dieter Bothe, Jan H. D\\\"orsam, Mario Kupnik, Maximilian L. Amberg, S\\\"oren Soennecken, Sven Suppelt, Tomislav Maric","submitted_at":"2026-07-14T17:58:36Z","abstract_excerpt":"Reliable operation of resonant acoustic levitators requires knowledge of the acoustic field state because the optimum transducer-reflector distance and resonant operating condition shift with wavelength, temperature, object insertion, and mechanical alignment. Existing adjustment methods are limited, especially for compact closed-loop operation and architectures without a passive reflector. Here, we investigate transducer-mounted microelectromechanical system (MEMS) microphones as off-axis external sensors that acquire relative acoustic signals without placing sensors inside the levitation cav"},"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":"2607.13026","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2026-07-14T17:58:36Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"693635316112e5f3440b33b9505ac795e4b44ee1835de6ff9c98f3a9eb1b4a93","abstract_canon_sha256":"b47062828f01e1e02291c6467038b6e36b76af3b22203b2ba2bb92518d67bd96"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-15T01:22:32.166756Z","signature_b64":"sqjVQXACwXzNsA1tHZTL+GSjGSDK8z2b2M2AuUoWhZrz1rKRYe8C0d0Z9MWIPWF2LMrDS0OnHOx0Lf/iGeajBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8b93a8564a724ddf530908bd14325b70e3d81b2786195ed3c1f4dac811dd8e48","last_reissued_at":"2026-07-15T01:22:32.165845Z","signature_status":"signed_v1","first_computed_at":"2026-07-15T01:22:32.165845Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Non-intrusive MEMS microphone sensing of acoustic field state in resonant acoustic levitators","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"physics.app-ph","authors_text":"Alexander A. Altmann, Chuanchao Xu, Dieter Bothe, Jan H. D\\\"orsam, Mario Kupnik, Maximilian L. Amberg, S\\\"oren Soennecken, Sven Suppelt, Tomislav Maric","submitted_at":"2026-07-14T17:58:36Z","abstract_excerpt":"Reliable operation of resonant acoustic levitators requires knowledge of the acoustic field state because the optimum transducer-reflector distance and resonant operating condition shift with wavelength, temperature, object insertion, and mechanical alignment. Existing adjustment methods are limited, especially for compact closed-loop operation and architectures without a passive reflector. Here, we investigate transducer-mounted microelectromechanical system (MEMS) microphones as off-axis external sensors that acquire relative acoustic signals without placing sensors inside the levitation cav"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.13026","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/2607.13026/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":"2607.13026","created_at":"2026-07-15T01:22:32.166323+00:00"},{"alias_kind":"arxiv_version","alias_value":"2607.13026v1","created_at":"2026-07-15T01:22:32.166323+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.13026","created_at":"2026-07-15T01:22:32.166323+00:00"},{"alias_kind":"pith_short_12","alias_value":"ROJ2QVSKOJG5","created_at":"2026-07-15T01:22:32.166323+00:00"},{"alias_kind":"pith_short_16","alias_value":"ROJ2QVSKOJG56UYJ","created_at":"2026-07-15T01:22:32.166323+00:00"},{"alias_kind":"pith_short_8","alias_value":"ROJ2QVSK","created_at":"2026-07-15T01:22:32.166323+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/ROJ2QVSKOJG56UYJBC6RIMS3OD","json":"https://pith.science/pith/ROJ2QVSKOJG56UYJBC6RIMS3OD.json","graph_json":"https://pith.science/api/pith-number/ROJ2QVSKOJG56UYJBC6RIMS3OD/graph.json","events_json":"https://pith.science/api/pith-number/ROJ2QVSKOJG56UYJBC6RIMS3OD/events.json","paper":"https://pith.science/paper/ROJ2QVSK"},"agent_actions":{"view_html":"https://pith.science/pith/ROJ2QVSKOJG56UYJBC6RIMS3OD","download_json":"https://pith.science/pith/ROJ2QVSKOJG56UYJBC6RIMS3OD.json","view_paper":"https://pith.science/paper/ROJ2QVSK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2607.13026&json=true","fetch_graph":"https://pith.science/api/pith-number/ROJ2QVSKOJG56UYJBC6RIMS3OD/graph.json","fetch_events":"https://pith.science/api/pith-number/ROJ2QVSKOJG56UYJBC6RIMS3OD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ROJ2QVSKOJG56UYJBC6RIMS3OD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ROJ2QVSKOJG56UYJBC6RIMS3OD/action/storage_attestation","attest_author":"https://pith.science/pith/ROJ2QVSKOJG56UYJBC6RIMS3OD/action/author_attestation","sign_citation":"https://pith.science/pith/ROJ2QVSKOJG56UYJBC6RIMS3OD/action/citation_signature","submit_replication":"https://pith.science/pith/ROJ2QVSKOJG56UYJBC6RIMS3OD/action/replication_record"}},"created_at":"2026-07-15T01:22:32.166323+00:00","updated_at":"2026-07-15T01:22:32.166323+00:00"}