{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:SAQZMRKXTHZP7AE7RMBNMT2HUJ","short_pith_number":"pith:SAQZMRKX","canonical_record":{"source":{"id":"2411.10883","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2024-11-16T20:40:08Z","cross_cats_sorted":[],"title_canon_sha256":"6e269b7e6e68d643c56f9f8c29b5d9c094570135c5d3c3813a9d1ac19d942ee8","abstract_canon_sha256":"2352a0a1d5c58613ec5b004a968161ed71d923ee032a8b5e769c1d3c939cae0b"},"schema_version":"1.0"},"canonical_sha256":"902196455799f2ff809f8b02d64f47a27a513938a2d8da961b945ceccf90c22e","source":{"kind":"arxiv","id":"2411.10883","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.10883","created_at":"2026-07-05T10:54:13Z"},{"alias_kind":"arxiv_version","alias_value":"2411.10883v2","created_at":"2026-07-05T10:54:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.10883","created_at":"2026-07-05T10:54:13Z"},{"alias_kind":"pith_short_12","alias_value":"SAQZMRKXTHZP","created_at":"2026-07-05T10:54:13Z"},{"alias_kind":"pith_short_16","alias_value":"SAQZMRKXTHZP7AE7","created_at":"2026-07-05T10:54:13Z"},{"alias_kind":"pith_short_8","alias_value":"SAQZMRKX","created_at":"2026-07-05T10:54:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:SAQZMRKXTHZP7AE7RMBNMT2HUJ","target":"record","payload":{"canonical_record":{"source":{"id":"2411.10883","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2024-11-16T20:40:08Z","cross_cats_sorted":[],"title_canon_sha256":"6e269b7e6e68d643c56f9f8c29b5d9c094570135c5d3c3813a9d1ac19d942ee8","abstract_canon_sha256":"2352a0a1d5c58613ec5b004a968161ed71d923ee032a8b5e769c1d3c939cae0b"},"schema_version":"1.0"},"canonical_sha256":"902196455799f2ff809f8b02d64f47a27a513938a2d8da961b945ceccf90c22e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:54:13.971680Z","signature_b64":"DmYtZ6Ig6aLNQA9ZO1LvFhpm8uPyj1ySrH+d0RtTeGwNvtYyC6u4PnZovFKHOG+4zzE7bI0/OjZuxWBZrTM6Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"902196455799f2ff809f8b02d64f47a27a513938a2d8da961b945ceccf90c22e","last_reissued_at":"2026-07-05T10:54:13.971186Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:54:13.971186Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2411.10883","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:54:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hkUqQv8bz+PBdSzBIjgbBfezAosQVkuNhQTWZMElZqn45WKIk/pIbcU0ibtdQeITAXnmQJxwAV+fv4mW5z+YCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T07:46:35.172916Z"},"content_sha256":"84d49d08b72b7b3cfe6f2080321566cd7a0a9dee337074742b5cbb923f1819c2","schema_version":"1.0","event_id":"sha256:84d49d08b72b7b3cfe6f2080321566cd7a0a9dee337074742b5cbb923f1819c2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:SAQZMRKXTHZP7AE7RMBNMT2HUJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"I Know What You Sync: Covert and Side Channel Attacks on File Systems via syncfs","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CR","authors_text":"Cheng Gu, Nael Abu-Ghazaleh, Yicheng Zhang","submitted_at":"2024-11-16T20:40:08Z","abstract_excerpt":"Operating Systems enforce logical isolation using abstractions such as processes, containers, and isolation technologies to protect a system from malicious or buggy code. In this paper, we show new types of side channels through the file system that break this logical isolation. The file system plays a critical role in the operating system, managing all I/O activities between the application layer and the physical storage device. We observe that the file system implementation is shared, leading to timing leakage when using common I/O system calls. Specifically, we found that modern operating s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.10883","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/2411.10883/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":"2026-07-05T10:54:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7WkKu/MzHpEXfzJpcCwrtcNYROYW9muQOxo0vdFSNntcEq5R1YgBQyRBLrIA95WlffUxH9ZVF1BSGWTSsXi9Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T07:46:35.174048Z"},"content_sha256":"76e34421fc172d8c8b9a2531bff79c7f3e21f67262e2e4e10292867d5c9c975e","schema_version":"1.0","event_id":"sha256:76e34421fc172d8c8b9a2531bff79c7f3e21f67262e2e4e10292867d5c9c975e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SAQZMRKXTHZP7AE7RMBNMT2HUJ/bundle.json","state_url":"https://pith.science/pith/SAQZMRKXTHZP7AE7RMBNMT2HUJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SAQZMRKXTHZP7AE7RMBNMT2HUJ/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":"2026-08-13T07:46:35Z","links":{"resolver":"https://pith.science/pith/SAQZMRKXTHZP7AE7RMBNMT2HUJ","bundle":"https://pith.science/pith/SAQZMRKXTHZP7AE7RMBNMT2HUJ/bundle.json","state":"https://pith.science/pith/SAQZMRKXTHZP7AE7RMBNMT2HUJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SAQZMRKXTHZP7AE7RMBNMT2HUJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:SAQZMRKXTHZP7AE7RMBNMT2HUJ","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":"2352a0a1d5c58613ec5b004a968161ed71d923ee032a8b5e769c1d3c939cae0b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2024-11-16T20:40:08Z","title_canon_sha256":"6e269b7e6e68d643c56f9f8c29b5d9c094570135c5d3c3813a9d1ac19d942ee8"},"schema_version":"1.0","source":{"id":"2411.10883","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.10883","created_at":"2026-07-05T10:54:13Z"},{"alias_kind":"arxiv_version","alias_value":"2411.10883v2","created_at":"2026-07-05T10:54:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.10883","created_at":"2026-07-05T10:54:13Z"},{"alias_kind":"pith_short_12","alias_value":"SAQZMRKXTHZP","created_at":"2026-07-05T10:54:13Z"},{"alias_kind":"pith_short_16","alias_value":"SAQZMRKXTHZP7AE7","created_at":"2026-07-05T10:54:13Z"},{"alias_kind":"pith_short_8","alias_value":"SAQZMRKX","created_at":"2026-07-05T10:54:13Z"}],"graph_snapshots":[{"event_id":"sha256:76e34421fc172d8c8b9a2531bff79c7f3e21f67262e2e4e10292867d5c9c975e","target":"graph","created_at":"2026-07-05T10:54:13Z","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/2411.10883/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Operating Systems enforce logical isolation using abstractions such as processes, containers, and isolation technologies to protect a system from malicious or buggy code. In this paper, we show new types of side channels through the file system that break this logical isolation. The file system plays a critical role in the operating system, managing all I/O activities between the application layer and the physical storage device. We observe that the file system implementation is shared, leading to timing leakage when using common I/O system calls. Specifically, we found that modern operating s","authors_text":"Cheng Gu, Nael Abu-Ghazaleh, Yicheng Zhang","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2024-11-16T20:40:08Z","title":"I Know What You Sync: Covert and Side Channel Attacks on File Systems via syncfs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.10883","kind":"arxiv","version":2},"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":"sha256:84d49d08b72b7b3cfe6f2080321566cd7a0a9dee337074742b5cbb923f1819c2","target":"record","created_at":"2026-07-05T10:54:13Z","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":"2352a0a1d5c58613ec5b004a968161ed71d923ee032a8b5e769c1d3c939cae0b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2024-11-16T20:40:08Z","title_canon_sha256":"6e269b7e6e68d643c56f9f8c29b5d9c094570135c5d3c3813a9d1ac19d942ee8"},"schema_version":"1.0","source":{"id":"2411.10883","kind":"arxiv","version":2}},"canonical_sha256":"902196455799f2ff809f8b02d64f47a27a513938a2d8da961b945ceccf90c22e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"902196455799f2ff809f8b02d64f47a27a513938a2d8da961b945ceccf90c22e","first_computed_at":"2026-07-05T10:54:13.971186Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:54:13.971186Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DmYtZ6Ig6aLNQA9ZO1LvFhpm8uPyj1ySrH+d0RtTeGwNvtYyC6u4PnZovFKHOG+4zzE7bI0/OjZuxWBZrTM6Ag==","signature_status":"signed_v1","signed_at":"2026-07-05T10:54:13.971680Z","signed_message":"canonical_sha256_bytes"},"source_id":"2411.10883","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:84d49d08b72b7b3cfe6f2080321566cd7a0a9dee337074742b5cbb923f1819c2","sha256:76e34421fc172d8c8b9a2531bff79c7f3e21f67262e2e4e10292867d5c9c975e"],"state_sha256":"332c1734ab00a363d981b2c0a21d39dd3c3fed52a72e8b8f1ee1b4f258c62f09"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CWdNFgKaNwtR3atOyz7AgBI8JngsDmy6zpcpLulUuwsUqkUs4NdhbwkeItqODX6sYy8iYwzEqPrfW7K8iICWBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T07:46:35.181826Z","bundle_sha256":"b956e8cc3709213cbea0b9e632c70d766da3e350900e910c9864c7eca1674ba3"}}