{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:AL346ZBEBR5EIR3AOCE4PQLXLB","short_pith_number":"pith:AL346ZBE","canonical_record":{"source":{"id":"2606.30550","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.SD","submitted_at":"2026-06-29T16:48:21Z","cross_cats_sorted":[],"title_canon_sha256":"9d076672db1484d704af5b7662d2d3f03872bafe883cc7844ee175387af70880","abstract_canon_sha256":"ef10f7b4d71928c1f4e3938293ae0d2ca93685caa9ca7b3656e0c468ca4034c5"},"schema_version":"1.0"},"canonical_sha256":"02f7cf64240c7a4447607089c7c177586f742d2c7181818f31a921d1747caae2","source":{"kind":"arxiv","id":"2606.30550","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.30550","created_at":"2026-06-30T02:18:20Z"},{"alias_kind":"arxiv_version","alias_value":"2606.30550v1","created_at":"2026-06-30T02:18:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.30550","created_at":"2026-06-30T02:18:20Z"},{"alias_kind":"pith_short_12","alias_value":"AL346ZBEBR5E","created_at":"2026-06-30T02:18:20Z"},{"alias_kind":"pith_short_16","alias_value":"AL346ZBEBR5EIR3A","created_at":"2026-06-30T02:18:20Z"},{"alias_kind":"pith_short_8","alias_value":"AL346ZBE","created_at":"2026-06-30T02:18:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:AL346ZBEBR5EIR3AOCE4PQLXLB","target":"record","payload":{"canonical_record":{"source":{"id":"2606.30550","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.SD","submitted_at":"2026-06-29T16:48:21Z","cross_cats_sorted":[],"title_canon_sha256":"9d076672db1484d704af5b7662d2d3f03872bafe883cc7844ee175387af70880","abstract_canon_sha256":"ef10f7b4d71928c1f4e3938293ae0d2ca93685caa9ca7b3656e0c468ca4034c5"},"schema_version":"1.0"},"canonical_sha256":"02f7cf64240c7a4447607089c7c177586f742d2c7181818f31a921d1747caae2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-30T02:18:20.090778Z","signature_b64":"urNheoflYFxWz0rZuqfOij+muJtiIEfqEBkecQqAbDdCRgv0eEBHeF7PHZb7+BqUT6h0z4a0pVPUwNYqQlScDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"02f7cf64240c7a4447607089c7c177586f742d2c7181818f31a921d1747caae2","last_reissued_at":"2026-06-30T02:18:20.090253Z","signature_status":"signed_v1","first_computed_at":"2026-06-30T02:18:20.090253Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.30550","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":"2026-06-30T02:18:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fpxs1/qbBbh4PPLLeCUfqgKHj6EHpoINJn/zw9BRUw4M5YZsPryKCS8BnOlyWEvDevzZfFG41LzDfBG2SWSUAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T00:11:41.943201Z"},"content_sha256":"57ff755d533f9f0b3a9d3398397e2c63476989158d431c1ba2fed07bd2fa4431","schema_version":"1.0","event_id":"sha256:57ff755d533f9f0b3a9d3398397e2c63476989158d431c1ba2fed07bd2fa4431"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:AL346ZBEBR5EIR3AOCE4PQLXLB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"SIGMA: Saliency-Guided Sparse Mask Attacks for Speech Emotion Recognition","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.SD","authors_text":"Bj\\\"orn W. Schuller, Qiyang Sun, Yi Chang, Zixing Zhang","submitted_at":"2026-06-29T16:48:21Z","abstract_excerpt":"Speech conveys rich emotional information. As Speech Emotion Recognition (SER) is usually deployed in privacy-sensitive and reliability-critical environments, adversarial attacks on SER have attracted increasing attention. Existing sparse attacks control the number of perturbed elements, yet, they often lack explainability guidance and explicit measures of explanation consistency. A unified treatment of sparsity and magnitude constraints is also uncommon. In addition, transferability across attack families and target models remains limited. Hence, we propose a SalIency-Guided sparse Mask Attac"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.30550","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/2606.30550/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":"2026-06-30T02:18:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HVPivWlXL2/KwUXIS95JCzevWvNbwyxkFCXig5Ty9fH+X/OQ8ehF7SQlkn12MOnTyq9LupFyxhTRtEQPVQVzCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T00:11:41.943590Z"},"content_sha256":"a61097153e33866248a1aa1bc3b5c2196f167aba6737738975c9db43f0bbc639","schema_version":"1.0","event_id":"sha256:a61097153e33866248a1aa1bc3b5c2196f167aba6737738975c9db43f0bbc639"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AL346ZBEBR5EIR3AOCE4PQLXLB/bundle.json","state_url":"https://pith.science/pith/AL346ZBEBR5EIR3AOCE4PQLXLB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AL346ZBEBR5EIR3AOCE4PQLXLB/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":"2026-07-01T00:11:41Z","links":{"resolver":"https://pith.science/pith/AL346ZBEBR5EIR3AOCE4PQLXLB","bundle":"https://pith.science/pith/AL346ZBEBR5EIR3AOCE4PQLXLB/bundle.json","state":"https://pith.science/pith/AL346ZBEBR5EIR3AOCE4PQLXLB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AL346ZBEBR5EIR3AOCE4PQLXLB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:AL346ZBEBR5EIR3AOCE4PQLXLB","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":"ef10f7b4d71928c1f4e3938293ae0d2ca93685caa9ca7b3656e0c468ca4034c5","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.SD","submitted_at":"2026-06-29T16:48:21Z","title_canon_sha256":"9d076672db1484d704af5b7662d2d3f03872bafe883cc7844ee175387af70880"},"schema_version":"1.0","source":{"id":"2606.30550","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.30550","created_at":"2026-06-30T02:18:20Z"},{"alias_kind":"arxiv_version","alias_value":"2606.30550v1","created_at":"2026-06-30T02:18:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.30550","created_at":"2026-06-30T02:18:20Z"},{"alias_kind":"pith_short_12","alias_value":"AL346ZBEBR5E","created_at":"2026-06-30T02:18:20Z"},{"alias_kind":"pith_short_16","alias_value":"AL346ZBEBR5EIR3A","created_at":"2026-06-30T02:18:20Z"},{"alias_kind":"pith_short_8","alias_value":"AL346ZBE","created_at":"2026-06-30T02:18:20Z"}],"graph_snapshots":[{"event_id":"sha256:a61097153e33866248a1aa1bc3b5c2196f167aba6737738975c9db43f0bbc639","target":"graph","created_at":"2026-06-30T02:18:20Z","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/2606.30550/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Speech conveys rich emotional information. As Speech Emotion Recognition (SER) is usually deployed in privacy-sensitive and reliability-critical environments, adversarial attacks on SER have attracted increasing attention. Existing sparse attacks control the number of perturbed elements, yet, they often lack explainability guidance and explicit measures of explanation consistency. A unified treatment of sparsity and magnitude constraints is also uncommon. In addition, transferability across attack families and target models remains limited. Hence, we propose a SalIency-Guided sparse Mask Attac","authors_text":"Bj\\\"orn W. Schuller, Qiyang Sun, Yi Chang, Zixing Zhang","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.SD","submitted_at":"2026-06-29T16:48:21Z","title":"SIGMA: Saliency-Guided Sparse Mask Attacks for Speech Emotion Recognition"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.30550","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":"sha256:57ff755d533f9f0b3a9d3398397e2c63476989158d431c1ba2fed07bd2fa4431","target":"record","created_at":"2026-06-30T02:18:20Z","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":"ef10f7b4d71928c1f4e3938293ae0d2ca93685caa9ca7b3656e0c468ca4034c5","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.SD","submitted_at":"2026-06-29T16:48:21Z","title_canon_sha256":"9d076672db1484d704af5b7662d2d3f03872bafe883cc7844ee175387af70880"},"schema_version":"1.0","source":{"id":"2606.30550","kind":"arxiv","version":1}},"canonical_sha256":"02f7cf64240c7a4447607089c7c177586f742d2c7181818f31a921d1747caae2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"02f7cf64240c7a4447607089c7c177586f742d2c7181818f31a921d1747caae2","first_computed_at":"2026-06-30T02:18:20.090253Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-30T02:18:20.090253Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"urNheoflYFxWz0rZuqfOij+muJtiIEfqEBkecQqAbDdCRgv0eEBHeF7PHZb7+BqUT6h0z4a0pVPUwNYqQlScDg==","signature_status":"signed_v1","signed_at":"2026-06-30T02:18:20.090778Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.30550","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:57ff755d533f9f0b3a9d3398397e2c63476989158d431c1ba2fed07bd2fa4431","sha256:a61097153e33866248a1aa1bc3b5c2196f167aba6737738975c9db43f0bbc639"],"state_sha256":"1b2aa62ef274c4061af547a5c102e8fb2af0de433dc8e49ed868d7ebb28a80a9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ik6nwxNfslIhSfkRYoLfqUyqdwki69KBIbOtzcl3PHWbDoiZUEdROekmDXypCXL7VC7UQaSizF4ugUZncDVpDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-01T00:11:41.945666Z","bundle_sha256":"da5f9195460bd6e43f518960afc19fbce7c43fa6430c94960240b283d85cf7a0"}}