{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:2YN33GDSSWSWPQKX642LVTHONN","short_pith_number":"pith:2YN33GDS","canonical_record":{"source":{"id":"2403.13643","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2024-03-20T14:50:00Z","cross_cats_sorted":["cs.SD"],"title_canon_sha256":"c3fa04f0b60cab6802ae62c48a8a72db9551bddc35948376d86b1df944cc5642","abstract_canon_sha256":"beffa7ba41e2f05654c256cd0b17624481a8b6329b18055bde719ff3f5aa0ded"},"schema_version":"1.0"},"canonical_sha256":"d61bbd987295a567c157f734baccee6b72e0d5f3e87084cc9bfc735710bbf321","source":{"kind":"arxiv","id":"2403.13643","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2403.13643","created_at":"2026-07-05T07:58:39Z"},{"alias_kind":"arxiv_version","alias_value":"2403.13643v1","created_at":"2026-07-05T07:58:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.13643","created_at":"2026-07-05T07:58:39Z"},{"alias_kind":"pith_short_12","alias_value":"2YN33GDSSWSW","created_at":"2026-07-05T07:58:39Z"},{"alias_kind":"pith_short_16","alias_value":"2YN33GDSSWSWPQKX","created_at":"2026-07-05T07:58:39Z"},{"alias_kind":"pith_short_8","alias_value":"2YN33GDS","created_at":"2026-07-05T07:58:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:2YN33GDSSWSWPQKX642LVTHONN","target":"record","payload":{"canonical_record":{"source":{"id":"2403.13643","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2024-03-20T14:50:00Z","cross_cats_sorted":["cs.SD"],"title_canon_sha256":"c3fa04f0b60cab6802ae62c48a8a72db9551bddc35948376d86b1df944cc5642","abstract_canon_sha256":"beffa7ba41e2f05654c256cd0b17624481a8b6329b18055bde719ff3f5aa0ded"},"schema_version":"1.0"},"canonical_sha256":"d61bbd987295a567c157f734baccee6b72e0d5f3e87084cc9bfc735710bbf321","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:58:39.842404Z","signature_b64":"i117IGQ6YIGlyryXjREC0hGTr5AwCXUf4n/WTGsxi6MWtWjahcowVQyqoCs2YlrEl8/VRmBosTfF71+ymVLtBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d61bbd987295a567c157f734baccee6b72e0d5f3e87084cc9bfc735710bbf321","last_reissued_at":"2026-07-05T07:58:39.841871Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:58:39.841871Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2403.13643","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":"2026-07-05T07:58:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UnsNcE8DaJpC7QVK7BXwVQ6ni3Q24/pdn40AEGZCoSIQ1mkwHqetwR1fQAGcDDHCdBUk2p7dU1mZ3YClyMPRAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T06:02:20.236249Z"},"content_sha256":"876a67c4c2ac9ea215b86823ea1367241ebdfa69e36e5d2152a5215ca259aca0","schema_version":"1.0","event_id":"sha256:876a67c4c2ac9ea215b86823ea1367241ebdfa69e36e5d2152a5215ca259aca0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:2YN33GDSSWSWPQKX642LVTHONN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Vibration Sensitivity of one-port and two-port MEMS microphones","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.SD"],"primary_cat":"eess.AS","authors_text":"Carly Stalder, Francis Doyon-D'Amour, Lixiue Wu, Michel Stephan, Raphael St-Gelais, Stephane Leahy, Timothy Hodges, Triantafillos Koukoulas","submitted_at":"2024-03-20T14:50:00Z","abstract_excerpt":"Micro-electro-mechanical system (MEMS) microphones (mics) with two acoustic ports are currently receiving considerable interest, with the promise of achieving higher directional sensitivity compared to traditional one-port architectures. However, measuring pressure differences in two-port microphones typically commands sensing elements that are softer than in one-port mics, and are therefore presumably more prone to interference from external vibration. Here we derive a universal expression for microphone sensitivity to vibration and we experimentally demonstrate its validity for several emerg"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.13643","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/2403.13643/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T07:58:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dS284XFZRA7nLujLDBfahiPhZEq3zj6mOBchIl11FEcdH/Cy8IUOJUqi8jtZnlrFjrAcUmTKKbS+DTxiuFnsDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T06:02:20.236763Z"},"content_sha256":"476b4c912c67cfe3cd18750531d6eef294e43b6a0032a4ada58e8bd9aff09b9a","schema_version":"1.0","event_id":"sha256:476b4c912c67cfe3cd18750531d6eef294e43b6a0032a4ada58e8bd9aff09b9a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2YN33GDSSWSWPQKX642LVTHONN/bundle.json","state_url":"https://pith.science/pith/2YN33GDSSWSWPQKX642LVTHONN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2YN33GDSSWSWPQKX642LVTHONN/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":"2026-08-11T06:02:20Z","links":{"resolver":"https://pith.science/pith/2YN33GDSSWSWPQKX642LVTHONN","bundle":"https://pith.science/pith/2YN33GDSSWSWPQKX642LVTHONN/bundle.json","state":"https://pith.science/pith/2YN33GDSSWSWPQKX642LVTHONN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2YN33GDSSWSWPQKX642LVTHONN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:2YN33GDSSWSWPQKX642LVTHONN","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":"beffa7ba41e2f05654c256cd0b17624481a8b6329b18055bde719ff3f5aa0ded","cross_cats_sorted":["cs.SD"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2024-03-20T14:50:00Z","title_canon_sha256":"c3fa04f0b60cab6802ae62c48a8a72db9551bddc35948376d86b1df944cc5642"},"schema_version":"1.0","source":{"id":"2403.13643","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2403.13643","created_at":"2026-07-05T07:58:39Z"},{"alias_kind":"arxiv_version","alias_value":"2403.13643v1","created_at":"2026-07-05T07:58:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.13643","created_at":"2026-07-05T07:58:39Z"},{"alias_kind":"pith_short_12","alias_value":"2YN33GDSSWSW","created_at":"2026-07-05T07:58:39Z"},{"alias_kind":"pith_short_16","alias_value":"2YN33GDSSWSWPQKX","created_at":"2026-07-05T07:58:39Z"},{"alias_kind":"pith_short_8","alias_value":"2YN33GDS","created_at":"2026-07-05T07:58:39Z"}],"graph_snapshots":[{"event_id":"sha256:476b4c912c67cfe3cd18750531d6eef294e43b6a0032a4ada58e8bd9aff09b9a","target":"graph","created_at":"2026-07-05T07:58:39Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2403.13643/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Micro-electro-mechanical system (MEMS) microphones (mics) with two acoustic ports are currently receiving considerable interest, with the promise of achieving higher directional sensitivity compared to traditional one-port architectures. However, measuring pressure differences in two-port microphones typically commands sensing elements that are softer than in one-port mics, and are therefore presumably more prone to interference from external vibration. Here we derive a universal expression for microphone sensitivity to vibration and we experimentally demonstrate its validity for several emerg","authors_text":"Carly Stalder, Francis Doyon-D'Amour, Lixiue Wu, Michel Stephan, Raphael St-Gelais, Stephane Leahy, Timothy Hodges, Triantafillos Koukoulas","cross_cats":["cs.SD"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2024-03-20T14:50:00Z","title":"Vibration Sensitivity of one-port and two-port MEMS microphones"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.13643","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":"sha256:876a67c4c2ac9ea215b86823ea1367241ebdfa69e36e5d2152a5215ca259aca0","target":"record","created_at":"2026-07-05T07:58:39Z","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":"beffa7ba41e2f05654c256cd0b17624481a8b6329b18055bde719ff3f5aa0ded","cross_cats_sorted":["cs.SD"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2024-03-20T14:50:00Z","title_canon_sha256":"c3fa04f0b60cab6802ae62c48a8a72db9551bddc35948376d86b1df944cc5642"},"schema_version":"1.0","source":{"id":"2403.13643","kind":"arxiv","version":1}},"canonical_sha256":"d61bbd987295a567c157f734baccee6b72e0d5f3e87084cc9bfc735710bbf321","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d61bbd987295a567c157f734baccee6b72e0d5f3e87084cc9bfc735710bbf321","first_computed_at":"2026-07-05T07:58:39.841871Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:58:39.841871Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"i117IGQ6YIGlyryXjREC0hGTr5AwCXUf4n/WTGsxi6MWtWjahcowVQyqoCs2YlrEl8/VRmBosTfF71+ymVLtBg==","signature_status":"signed_v1","signed_at":"2026-07-05T07:58:39.842404Z","signed_message":"canonical_sha256_bytes"},"source_id":"2403.13643","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:876a67c4c2ac9ea215b86823ea1367241ebdfa69e36e5d2152a5215ca259aca0","sha256:476b4c912c67cfe3cd18750531d6eef294e43b6a0032a4ada58e8bd9aff09b9a"],"state_sha256":"8ba5f67efc5cc3f2ce46c82e7d289474b29a0753aa2ed5531d8142236b8e646f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MYzZtrSRQ4AvfjpTbgAcgKmRHPBbXBBCTVCsPD4Cc+cMDN2Y+zbGxC5ZnSEftCGBgBGIMk4NkrGkA38S9PYFDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T06:02:20.242034Z","bundle_sha256":"c2eb3d6d2e6b330c896e75d984f232816cff45ed044c01bf8a9577080a84c8bb"}}