{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:FYP5DBGSOFKBDP2JNBVNTVVSR5","merge_version":"pith-open-graph-merge-v1","event_count":4,"valid_event_count":4,"invalid_event_count":0,"equivocation_count":1,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"c736410b6907b2d150c88643d4718fdb9540ec715737ed08acdaceb8d80cae2b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-08-06T14:55:00Z","title_canon_sha256":"27fbb19e0e2f4c7ef7b12bf601c7df41836e848cb927729e9e16bb902ef712f8"},"schema_version":"1.0","source":{"id":"2608.06124","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.06124","created_at":"2026-08-07T01:40:35Z"},{"alias_kind":"arxiv_version","alias_value":"2608.06124v1","created_at":"2026-08-07T01:40:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.06124","created_at":"2026-08-07T01:40:35Z"},{"alias_kind":"pith_short_12","alias_value":"FYP5DBGSOFKB","created_at":"2026-08-07T01:40:35Z"},{"alias_kind":"pith_short_16","alias_value":"FYP5DBGSOFKBDP2J","created_at":"2026-08-07T01:40:35Z"},{"alias_kind":"pith_short_8","alias_value":"FYP5DBGS","created_at":"2026-08-07T01:40:35Z"}],"graph_snapshots":[{"event_id":"sha256:b427a84dd392975bd84c48629999e2f8fd7794f6b4d8370325e4224bbc8bd1d9","target":"graph","created_at":"2026-08-07T01:40:35Z","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/2608.06124/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Speculative execution attacks such as Spectre-PHT and Spectre-STL remain a critical security concern in modern processors. While software-based mitigations like Speculative Load Hardening (SLH) offer effective protection against Spectre-PHT, they are limited in scope and require software-managed speculative masks, which can be error-prone and costly. Defenses against Spectre-STL, such as the Speculative Store Bypass Disable bit (SSBD), incur additional performance overhead and lack fine-grained control. In this work, we introduce dfence, a new CPU instruction that generalizes SLH to mitigate b","authors_text":"Benjamin Gr\\'egoire, Davide Davoli, Frank Piessens, Lesly-Ann Daniel, Marton Bognar, Tamara Rezk","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-08-06T14:55:00Z","title":"dfence: Fine-Grained Speculation Barriers for Efficient and Effective Hardware-Software Protection in the Spectre Era (Extended Version)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.06124","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":"sha256:8f7e07ce2fee45a3c00d127d13f680ff81c7ad81decbd3bf3847e25235011620","target":"record","created_at":"2026-08-07T01:40:35Z","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":"c736410b6907b2d150c88643d4718fdb9540ec715737ed08acdaceb8d80cae2b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-08-06T14:55:00Z","title_canon_sha256":"27fbb19e0e2f4c7ef7b12bf601c7df41836e848cb927729e9e16bb902ef712f8"},"schema_version":"1.0","source":{"id":"2608.06124","kind":"arxiv","version":1}},"canonical_sha256":"2e1fd184d2715411bf49686ad9d6b28f635928026c118b640309fac718c0fcab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2e1fd184d2715411bf49686ad9d6b28f635928026c118b640309fac718c0fcab","first_computed_at":"2026-08-07T01:40:35.603269Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-07T01:40:35.603269Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yGBQWNTaFjPKkyIs0sPDKupmU3Gy4wcfR3yQ4hHy/25nwp8f9IIjsbyAsO/SZTEgh45nP5f7/LQpOvUboovCBg==","signature_status":"signed_v1","signed_at":"2026-08-07T01:40:35.604966Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.06124","source_kind":"arxiv","source_version":1}}},"equivocations":[{"signer_id":"pith.science","event_type":"integrity_finding","target":"integrity","event_ids":["sha256:222fbb61b1496a0bc07218bcd829710af2bd23fd8155802ed57990fc88b11927","sha256:9c997b4f336d9e6a1b37576da007286c1ddce1e85c2108b7e2938795fa72dbf5"]}],"invalid_events":[],"applied_event_ids":["sha256:8f7e07ce2fee45a3c00d127d13f680ff81c7ad81decbd3bf3847e25235011620","sha256:b427a84dd392975bd84c48629999e2f8fd7794f6b4d8370325e4224bbc8bd1d9"],"state_sha256":"6406c335a85cac87e1f3d391c396f379797044498a039cbda76b82fb13eab03f"}