{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:XCQODCSBXIKPRVFWK5BAH75K2W","short_pith_number":"pith:XCQODCSB","schema_version":"1.0","canonical_sha256":"b8a0e18a41ba14f8d4b6574203ffaad58933a7031906a3cef96cbbf9ab7abc88","source":{"kind":"arxiv","id":"2607.26536","version":1},"attestation_state":"computed","paper":{"title":"TPCD: Tone-Pressure Contrastive Decoding and the Label-Free Gating Bottleneck in Vision-Language Models","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Jinkun Zhao, Kui Zhang, Wenjun Wu","submitted_at":"2026-07-29T07:04:59Z","abstract_excerpt":"High-pressure prompts can push vision-language models (VLMs) into unsupported commitments, such as reading illegible text, reporting indeterminate times, or affirming absent objects. This paper asks whether the pressure-induced distribution itself can serve as a contrastive-decoding negative branch. Tone-pressure contrastive decoding (TPCD) subtracts logits produced under a high-pressure instruction from logits produced under a safe neutral instruction. On the 800-example tone-matters benchmark, LLaVA-1.5-7B under pressure reaches 66.75% attack success rate (ASR); safe neutralization reduces A"},"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":"2607.26536","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2026-07-29T07:04:59Z","cross_cats_sorted":[],"title_canon_sha256":"1771c810bcba7c55e8081d526a1e4fe8bf7b00608799e17eda2e1023a8745a5c","abstract_canon_sha256":"436a0fa399f76839de6e8b96e954b1387553a78d839725e7f31910b22ddd0db0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b8a0e18a41ba14f8d4b6574203ffaad58933a7031906a3cef96cbbf9ab7abc88","last_reissued_at":"2026-07-30T01:20:48.697180Z","signature_status":"unsigned_v0","first_computed_at":"2026-07-30T01:20:48.697180Z"},"graph_snapshot":{"paper":{"title":"TPCD: Tone-Pressure Contrastive Decoding and the Label-Free Gating Bottleneck in Vision-Language Models","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Jinkun Zhao, Kui Zhang, Wenjun Wu","submitted_at":"2026-07-29T07:04:59Z","abstract_excerpt":"High-pressure prompts can push vision-language models (VLMs) into unsupported commitments, such as reading illegible text, reporting indeterminate times, or affirming absent objects. This paper asks whether the pressure-induced distribution itself can serve as a contrastive-decoding negative branch. Tone-pressure contrastive decoding (TPCD) subtracts logits produced under a high-pressure instruction from logits produced under a safe neutral instruction. On the 800-example tone-matters benchmark, LLaVA-1.5-7B under pressure reaches 66.75% attack success rate (ASR); safe neutralization reduces A"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.26536","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/2607.26536/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":"2607.26536","created_at":"2026-07-30T01:20:48.702247+00:00"},{"alias_kind":"arxiv_version","alias_value":"2607.26536v1","created_at":"2026-07-30T01:20:48.702247+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.26536","created_at":"2026-07-30T01:20:48.702247+00:00"},{"alias_kind":"pith_short_12","alias_value":"XCQODCSBXIKP","created_at":"2026-07-30T01:20:48.702247+00:00"},{"alias_kind":"pith_short_16","alias_value":"XCQODCSBXIKPRVFW","created_at":"2026-07-30T01:20:48.702247+00:00"},{"alias_kind":"pith_short_8","alias_value":"XCQODCSB","created_at":"2026-07-30T01:20:48.702247+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/XCQODCSBXIKPRVFWK5BAH75K2W","json":"https://pith.science/pith/XCQODCSBXIKPRVFWK5BAH75K2W.json","graph_json":"https://pith.science/api/pith-number/XCQODCSBXIKPRVFWK5BAH75K2W/graph.json","events_json":"https://pith.science/api/pith-number/XCQODCSBXIKPRVFWK5BAH75K2W/events.json","paper":"https://pith.science/paper/XCQODCSB"},"agent_actions":{"view_html":"https://pith.science/pith/XCQODCSBXIKPRVFWK5BAH75K2W","download_json":"https://pith.science/pith/XCQODCSBXIKPRVFWK5BAH75K2W.json","view_paper":"https://pith.science/paper/XCQODCSB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2607.26536&json=true","fetch_graph":"https://pith.science/api/pith-number/XCQODCSBXIKPRVFWK5BAH75K2W/graph.json","fetch_events":"https://pith.science/api/pith-number/XCQODCSBXIKPRVFWK5BAH75K2W/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/XCQODCSBXIKPRVFWK5BAH75K2W/action/timestamp_anchor","attest_storage":"https://pith.science/pith/XCQODCSBXIKPRVFWK5BAH75K2W/action/storage_attestation","attest_author":"https://pith.science/pith/XCQODCSBXIKPRVFWK5BAH75K2W/action/author_attestation","sign_citation":"https://pith.science/pith/XCQODCSBXIKPRVFWK5BAH75K2W/action/citation_signature","submit_replication":"https://pith.science/pith/XCQODCSBXIKPRVFWK5BAH75K2W/action/replication_record"}},"created_at":"2026-07-30T01:20:48.702247+00:00","updated_at":"2026-07-30T01:20:48.702247+00:00"}