{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:QTK4RVYA2PFK5WO4C25AMX53IP","short_pith_number":"pith:QTK4RVYA","schema_version":"1.0","canonical_sha256":"84d5c8d700d3caaed9dc16ba065fbb43cd66bf7e7f886fe6830253486bc0cb6a","source":{"kind":"arxiv","id":"2302.13863","version":2},"attestation_state":"computed","paper":{"title":"Capstone: A Capability-based Foundation for Trustless Secure Memory Access (Extended Version)","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.AR","cs.OS"],"primary_cat":"cs.CR","authors_text":"Aditya Badole, Conrad Watt, Jason Zhijingcheng Yu, Prateek Saxena, Trevor E. Carlson","submitted_at":"2023-02-27T15:03:15Z","abstract_excerpt":"Capability-based memory isolation is a promising new architectural primitive. Software can access low-level memory only via capability handles rather than raw pointers, which provides a natural interface to enforce security restrictions. Existing architectural capability designs such as CHERI provide spatial safety, but fail to extend to other memory models that security-sensitive software designs may desire. In this paper, we propose Capstone, a more expressive architectural capability design that supports multiple existing memory isolation models in a trustless setup, i.e., without relying o"},"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":"2302.13863","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2023-02-27T15:03:15Z","cross_cats_sorted":["cs.AR","cs.OS"],"title_canon_sha256":"d0f4870b9da675b3798ac29a676c62b25995df6b1702ef390f5fcef5886f2487","abstract_canon_sha256":"88c3495139d9b47966a71026257d13ee42220a596bccc5bfc499fe61d3dcbeae"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:49:33.143182Z","signature_b64":"wBH9tWcT7YTIMGjHZhsX+YI1ZYk6OQHKaGX7AbzACPWrEQIcNiqLbiiE8dIF0Vs5ka+2PLAWoTzUqHAQaHmdDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"84d5c8d700d3caaed9dc16ba065fbb43cd66bf7e7f886fe6830253486bc0cb6a","last_reissued_at":"2026-07-05T05:49:33.142782Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:49:33.142782Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Capstone: A Capability-based Foundation for Trustless Secure Memory Access (Extended Version)","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.AR","cs.OS"],"primary_cat":"cs.CR","authors_text":"Aditya Badole, Conrad Watt, Jason Zhijingcheng Yu, Prateek Saxena, Trevor E. Carlson","submitted_at":"2023-02-27T15:03:15Z","abstract_excerpt":"Capability-based memory isolation is a promising new architectural primitive. Software can access low-level memory only via capability handles rather than raw pointers, which provides a natural interface to enforce security restrictions. Existing architectural capability designs such as CHERI provide spatial safety, but fail to extend to other memory models that security-sensitive software designs may desire. In this paper, we propose Capstone, a more expressive architectural capability design that supports multiple existing memory isolation models in a trustless setup, i.e., without relying o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.13863","kind":"arxiv","version":2},"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/2302.13863/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":"2302.13863","created_at":"2026-07-05T05:49:33.142839+00:00"},{"alias_kind":"arxiv_version","alias_value":"2302.13863v2","created_at":"2026-07-05T05:49:33.142839+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.13863","created_at":"2026-07-05T05:49:33.142839+00:00"},{"alias_kind":"pith_short_12","alias_value":"QTK4RVYA2PFK","created_at":"2026-07-05T05:49:33.142839+00:00"},{"alias_kind":"pith_short_16","alias_value":"QTK4RVYA2PFK5WO4","created_at":"2026-07-05T05:49:33.142839+00:00"},{"alias_kind":"pith_short_8","alias_value":"QTK4RVYA","created_at":"2026-07-05T05:49:33.142839+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/QTK4RVYA2PFK5WO4C25AMX53IP","json":"https://pith.science/pith/QTK4RVYA2PFK5WO4C25AMX53IP.json","graph_json":"https://pith.science/api/pith-number/QTK4RVYA2PFK5WO4C25AMX53IP/graph.json","events_json":"https://pith.science/api/pith-number/QTK4RVYA2PFK5WO4C25AMX53IP/events.json","paper":"https://pith.science/paper/QTK4RVYA"},"agent_actions":{"view_html":"https://pith.science/pith/QTK4RVYA2PFK5WO4C25AMX53IP","download_json":"https://pith.science/pith/QTK4RVYA2PFK5WO4C25AMX53IP.json","view_paper":"https://pith.science/paper/QTK4RVYA","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2302.13863&json=true","fetch_graph":"https://pith.science/api/pith-number/QTK4RVYA2PFK5WO4C25AMX53IP/graph.json","fetch_events":"https://pith.science/api/pith-number/QTK4RVYA2PFK5WO4C25AMX53IP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QTK4RVYA2PFK5WO4C25AMX53IP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QTK4RVYA2PFK5WO4C25AMX53IP/action/storage_attestation","attest_author":"https://pith.science/pith/QTK4RVYA2PFK5WO4C25AMX53IP/action/author_attestation","sign_citation":"https://pith.science/pith/QTK4RVYA2PFK5WO4C25AMX53IP/action/citation_signature","submit_replication":"https://pith.science/pith/QTK4RVYA2PFK5WO4C25AMX53IP/action/replication_record"}},"created_at":"2026-07-05T05:49:33.142839+00:00","updated_at":"2026-07-05T05:49:33.142839+00:00"}