{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:HFIYTYIBNXQONDOLOHW4UC6P22","short_pith_number":"pith:HFIYTYIB","canonical_record":{"source":{"id":"2509.01399","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2025-09-01T11:50:43Z","cross_cats_sorted":["cs.AI","cs.HC","eess.AS"],"title_canon_sha256":"a4bdd078630f982f012da872d3850a6b0f2145bd11d38cbc917486443593dd22","abstract_canon_sha256":"aa59e9e7b99c00a2249079a8b61fca6a1b027dcd2546417104477b7200e18a41"},"schema_version":"1.0"},"canonical_sha256":"395189e1016de0e68dcb71edca0bcfd6a7392d9b534cf42c8940cb999f696237","source":{"kind":"arxiv","id":"2509.01399","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.01399","created_at":"2026-07-05T12:02:59Z"},{"alias_kind":"arxiv_version","alias_value":"2509.01399v1","created_at":"2026-07-05T12:02:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.01399","created_at":"2026-07-05T12:02:59Z"},{"alias_kind":"pith_short_12","alias_value":"HFIYTYIBNXQO","created_at":"2026-07-05T12:02:59Z"},{"alias_kind":"pith_short_16","alias_value":"HFIYTYIBNXQONDOL","created_at":"2026-07-05T12:02:59Z"},{"alias_kind":"pith_short_8","alias_value":"HFIYTYIB","created_at":"2026-07-05T12:02:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:HFIYTYIBNXQONDOLOHW4UC6P22","target":"record","payload":{"canonical_record":{"source":{"id":"2509.01399","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2025-09-01T11:50:43Z","cross_cats_sorted":["cs.AI","cs.HC","eess.AS"],"title_canon_sha256":"a4bdd078630f982f012da872d3850a6b0f2145bd11d38cbc917486443593dd22","abstract_canon_sha256":"aa59e9e7b99c00a2249079a8b61fca6a1b027dcd2546417104477b7200e18a41"},"schema_version":"1.0"},"canonical_sha256":"395189e1016de0e68dcb71edca0bcfd6a7392d9b534cf42c8940cb999f696237","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T12:02:59.825473Z","signature_b64":"w6+9xSt4izh33mX+nVU2v+HzBLzp2XtiOnE0zUl87ejvHSfvI2aidGxUMBZNjWM/BaRZhxSqnoPN0Rfb5D1gDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"395189e1016de0e68dcb71edca0bcfd6a7392d9b534cf42c8940cb999f696237","last_reissued_at":"2026-07-05T12:02:59.824963Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T12:02:59.824963Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2509.01399","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":"2026-07-05T12:02:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tj2LzIlD1P/EqAnAXicQpDnEkAlCrokzcQTVvPHVAz36oWISBoJdjKQQSn4GGp/OiWoBiLAMDAoekMZLCIVQDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T12:22:45.715026Z"},"content_sha256":"9505911cd23963f237ea5513a15733eabcb13180a247219e235c750b50391674","schema_version":"1.0","event_id":"sha256:9505911cd23963f237ea5513a15733eabcb13180a247219e235c750b50391674"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:HFIYTYIBNXQONDOLOHW4UC6P22","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"CabinSep: IR-Augmented Mask-Based MVDR for Real-Time In-Car Speech Separation with Distributed Heterogeneous Arrays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI","cs.HC","eess.AS"],"primary_cat":"cs.SD","authors_text":"Lei Xie, Li Chen, Runduo Han, Yanxin Hu, Yihui Fu, Yukai Jv, Zihan Zhang","submitted_at":"2025-09-01T11:50:43Z","abstract_excerpt":"Separating overlapping speech from multiple speakers is crucial for effective human-vehicle interaction. This paper proposes CabinSep, a lightweight neural mask-based minimum variance distortionless response (MVDR) speech separation approach, to reduce speech recognition errors in back-end automatic speech recognition (ASR) models. Our contributions are threefold: First, we utilize channel information to extract spatial features, which improves the estimation of speech and noise masks. Second, we employ MVDR during inference, reducing speech distortion to make it more ASR-friendly. Third, we i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.01399","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/2509.01399/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":"2026-07-05T12:02:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4ykFwfye7nUSaM0G+dvGez8rXgghfVOupaBc6HANGytHp1fmTUvXKWpJCItW80bpBNhUVcrVMzDWk8Ynfu0dAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T12:22:45.715537Z"},"content_sha256":"b00ee1d324c3f91ad9481b2bace93e31cd981138a0125fd7d9e693c70fc2c054","schema_version":"1.0","event_id":"sha256:b00ee1d324c3f91ad9481b2bace93e31cd981138a0125fd7d9e693c70fc2c054"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HFIYTYIBNXQONDOLOHW4UC6P22/bundle.json","state_url":"https://pith.science/pith/HFIYTYIBNXQONDOLOHW4UC6P22/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HFIYTYIBNXQONDOLOHW4UC6P22/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":"2026-08-11T12:22:45Z","links":{"resolver":"https://pith.science/pith/HFIYTYIBNXQONDOLOHW4UC6P22","bundle":"https://pith.science/pith/HFIYTYIBNXQONDOLOHW4UC6P22/bundle.json","state":"https://pith.science/pith/HFIYTYIBNXQONDOLOHW4UC6P22/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HFIYTYIBNXQONDOLOHW4UC6P22/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:HFIYTYIBNXQONDOLOHW4UC6P22","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":"aa59e9e7b99c00a2249079a8b61fca6a1b027dcd2546417104477b7200e18a41","cross_cats_sorted":["cs.AI","cs.HC","eess.AS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2025-09-01T11:50:43Z","title_canon_sha256":"a4bdd078630f982f012da872d3850a6b0f2145bd11d38cbc917486443593dd22"},"schema_version":"1.0","source":{"id":"2509.01399","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.01399","created_at":"2026-07-05T12:02:59Z"},{"alias_kind":"arxiv_version","alias_value":"2509.01399v1","created_at":"2026-07-05T12:02:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.01399","created_at":"2026-07-05T12:02:59Z"},{"alias_kind":"pith_short_12","alias_value":"HFIYTYIBNXQO","created_at":"2026-07-05T12:02:59Z"},{"alias_kind":"pith_short_16","alias_value":"HFIYTYIBNXQONDOL","created_at":"2026-07-05T12:02:59Z"},{"alias_kind":"pith_short_8","alias_value":"HFIYTYIB","created_at":"2026-07-05T12:02:59Z"}],"graph_snapshots":[{"event_id":"sha256:b00ee1d324c3f91ad9481b2bace93e31cd981138a0125fd7d9e693c70fc2c054","target":"graph","created_at":"2026-07-05T12:02:59Z","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/2509.01399/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Separating overlapping speech from multiple speakers is crucial for effective human-vehicle interaction. This paper proposes CabinSep, a lightweight neural mask-based minimum variance distortionless response (MVDR) speech separation approach, to reduce speech recognition errors in back-end automatic speech recognition (ASR) models. Our contributions are threefold: First, we utilize channel information to extract spatial features, which improves the estimation of speech and noise masks. Second, we employ MVDR during inference, reducing speech distortion to make it more ASR-friendly. Third, we i","authors_text":"Lei Xie, Li Chen, Runduo Han, Yanxin Hu, Yihui Fu, Yukai Jv, Zihan Zhang","cross_cats":["cs.AI","cs.HC","eess.AS"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2025-09-01T11:50:43Z","title":"CabinSep: IR-Augmented Mask-Based MVDR for Real-Time In-Car Speech Separation with Distributed Heterogeneous Arrays"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.01399","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":"sha256:9505911cd23963f237ea5513a15733eabcb13180a247219e235c750b50391674","target":"record","created_at":"2026-07-05T12:02:59Z","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":"aa59e9e7b99c00a2249079a8b61fca6a1b027dcd2546417104477b7200e18a41","cross_cats_sorted":["cs.AI","cs.HC","eess.AS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2025-09-01T11:50:43Z","title_canon_sha256":"a4bdd078630f982f012da872d3850a6b0f2145bd11d38cbc917486443593dd22"},"schema_version":"1.0","source":{"id":"2509.01399","kind":"arxiv","version":1}},"canonical_sha256":"395189e1016de0e68dcb71edca0bcfd6a7392d9b534cf42c8940cb999f696237","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"395189e1016de0e68dcb71edca0bcfd6a7392d9b534cf42c8940cb999f696237","first_computed_at":"2026-07-05T12:02:59.824963Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T12:02:59.824963Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"w6+9xSt4izh33mX+nVU2v+HzBLzp2XtiOnE0zUl87ejvHSfvI2aidGxUMBZNjWM/BaRZhxSqnoPN0Rfb5D1gDA==","signature_status":"signed_v1","signed_at":"2026-07-05T12:02:59.825473Z","signed_message":"canonical_sha256_bytes"},"source_id":"2509.01399","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9505911cd23963f237ea5513a15733eabcb13180a247219e235c750b50391674","sha256:b00ee1d324c3f91ad9481b2bace93e31cd981138a0125fd7d9e693c70fc2c054"],"state_sha256":"6baf8a89bc18786b022ae3d2b8393976ed90a255e1f08ec7d6f1ea158f604f0f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U+S7yNZ9ikxDECcPiRsJhVMYCbh4vVpawPLK7oOTY7jZoD/g2bwQQVE9mvvUycLbF/2ZK0RripXe/RfyzrTuBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T12:22:45.720400Z","bundle_sha256":"d56a487b46d78a929e8ead12f91c5d12e04f218e6b61ddcbafcb6f560d566240"}}