{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:IX2GYDMBUUGRVMVWCAF4GEZ4CL","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":"2cf1a84d87934140ecae4faf685c2b9a99aed8dc5b44df8d65071054d9f7b080","cross_cats_sorted":["cs.CL","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2022-05-02T21:53:10Z","title_canon_sha256":"cf47a23dc6566e5d81b5f68bcfdb97dbdf60f5024d7289a6d54df9fb9180baa3"},"schema_version":"1.0","source":{"id":"2205.02130","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.02130","created_at":"2026-07-05T04:20:25Z"},{"alias_kind":"arxiv_version","alias_value":"2205.02130v1","created_at":"2026-07-05T04:20:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.02130","created_at":"2026-07-05T04:20:25Z"},{"alias_kind":"pith_short_12","alias_value":"IX2GYDMBUUGR","created_at":"2026-07-05T04:20:25Z"},{"alias_kind":"pith_short_16","alias_value":"IX2GYDMBUUGRVMVW","created_at":"2026-07-05T04:20:25Z"},{"alias_kind":"pith_short_8","alias_value":"IX2GYDMB","created_at":"2026-07-05T04:20:25Z"}],"graph_snapshots":[{"event_id":"sha256:a01517a5b0dd3e74595b49a25b06aa59862575a33b13bf6aca00b6cbaabbdb4d","target":"graph","created_at":"2026-07-05T04:20:25Z","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/2205.02130/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"As the issues of privacy and trust are receiving increasing attention within the research community, various attempts have been made to anonymize textual data. A significant subset of these approaches incorporate differentially private mechanisms to perturb word embeddings, thus replacing individual words in a sentence. While these methods represent very important contributions, have various advantages over other techniques and do show anonymization capabilities, they have several shortcomings. In this paper, we investigate these weaknesses and demonstrate significant mathematical constraints ","authors_text":"Benjamin Weggenmann, Florian Kerschbaum, Justus Mattern","cross_cats":["cs.CL","cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2022-05-02T21:53:10Z","title":"The Limits of Word Level Differential Privacy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.02130","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":"sha256:02a74daadcac088ed340f0eb7008327739b91d714274ee20b7f8f76f9df98c64","target":"record","created_at":"2026-07-05T04:20:25Z","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":"2cf1a84d87934140ecae4faf685c2b9a99aed8dc5b44df8d65071054d9f7b080","cross_cats_sorted":["cs.CL","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2022-05-02T21:53:10Z","title_canon_sha256":"cf47a23dc6566e5d81b5f68bcfdb97dbdf60f5024d7289a6d54df9fb9180baa3"},"schema_version":"1.0","source":{"id":"2205.02130","kind":"arxiv","version":1}},"canonical_sha256":"45f46c0d81a50d1ab2b6100bc3133c12f76adb1d82d4255af5b0f37cd2c29d4c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"45f46c0d81a50d1ab2b6100bc3133c12f76adb1d82d4255af5b0f37cd2c29d4c","first_computed_at":"2026-07-05T04:20:25.499868Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:20:25.499868Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TxI85LBMVvGOTPZhssDmG62Uuu2iTPVc34dvSgyypG+T8uQ6oIw6OtKVwl5fIpjxoy+ZwO0aRQujB7YxbZw2Ag==","signature_status":"signed_v1","signed_at":"2026-07-05T04:20:25.500261Z","signed_message":"canonical_sha256_bytes"},"source_id":"2205.02130","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:02a74daadcac088ed340f0eb7008327739b91d714274ee20b7f8f76f9df98c64","sha256:a01517a5b0dd3e74595b49a25b06aa59862575a33b13bf6aca00b6cbaabbdb4d"],"state_sha256":"4b5bb2d2ded4406acb42545577f3a46a50a745ba7aa25748d82894eb8c74e291"}