{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:FX4VRYA3DE4OGLW7IY2NEJ54OC","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":"618e3034b1d0d05b94249563985c8ac794749369ce3e005669bc7615dfe1a494","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2018-04-05T14:54:27Z","title_canon_sha256":"bed1c42ae1a99a9a5693ed2c90edf90437951f24a00de24c7383a31ac51fceda"},"schema_version":"1.0","source":{"id":"1804.01886","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.01886","created_at":"2026-05-18T00:19:09Z"},{"alias_kind":"arxiv_version","alias_value":"1804.01886v1","created_at":"2026-05-18T00:19:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.01886","created_at":"2026-05-18T00:19:09Z"},{"alias_kind":"pith_short_12","alias_value":"FX4VRYA3DE4O","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"FX4VRYA3DE4OGLW7","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"FX4VRYA3","created_at":"2026-05-18T12:32:25Z"}],"graph_snapshots":[{"event_id":"sha256:4692b1443c790cac4bdc4777870131d502aee2417fe43af4a330de730e298033","target":"graph","created_at":"2026-05-18T00:19:09Z","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"},"paper":{"abstract_excerpt":"Data fragmentation and dispersal over multiple clouds is a way of data protection against honest-but-curious storage or service providers. In this paper, we introduce a novel algorithm for data fragmentation that is particularly well adapted to be used in a multi-cloud environment. An empirical security analysis was performed on data sets provided by a large enterprise and shows that the scheme achieves good data protection. A performance comparison with published related works demonstrates it can be more than twice faster than the fastest of the relevant fragmentation techniques, while produc","authors_text":"Gerard Memmi, Katarzyna Kapusta","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2018-04-05T14:54:27Z","title":"A Fast Fragmentation Algorithm For Data Protection In a Multi-Cloud Environment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.01886","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":"sha256:3aee959bff14325c8b3ed945f6ff9aae0b6b4c0b50ee2841ed0c2dae60f8b51b","target":"record","created_at":"2026-05-18T00:19:09Z","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":"618e3034b1d0d05b94249563985c8ac794749369ce3e005669bc7615dfe1a494","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2018-04-05T14:54:27Z","title_canon_sha256":"bed1c42ae1a99a9a5693ed2c90edf90437951f24a00de24c7383a31ac51fceda"},"schema_version":"1.0","source":{"id":"1804.01886","kind":"arxiv","version":1}},"canonical_sha256":"2df958e01b1938e32edf4634d227bc709f8ed632cf621b21baa2c36e71d6cd73","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2df958e01b1938e32edf4634d227bc709f8ed632cf621b21baa2c36e71d6cd73","first_computed_at":"2026-05-18T00:19:09.626918Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:19:09.626918Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qdPr2eD/mHWFFMi44dPCS4TcZNjyuyR21Kj52NGOJXU4AColpZJE++ZeZRFBelJeCiPmr6fGLkwoXRseUCGsDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:19:09.627634Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.01886","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3aee959bff14325c8b3ed945f6ff9aae0b6b4c0b50ee2841ed0c2dae60f8b51b","sha256:4692b1443c790cac4bdc4777870131d502aee2417fe43af4a330de730e298033"],"state_sha256":"2392833ac72329fa67b39bd0ca36028f8493a6acf2d447df2ebaea7cbc276f7a"}