{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:X27ATVDDTU3PPVWMC7E4PZCPFT","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":"39e9c2215910ae79934c93dbd00a53a2bd594f8a4ad92bc189e227a8f3309bef","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CL","submitted_at":"2025-05-22T17:22:28Z","title_canon_sha256":"d7d3e7d5fc2de90dd7b424d985006351a58cd8e82027a588600b1f4cc89fc8fc"},"schema_version":"1.0","source":{"id":"2505.16931","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.16931","created_at":"2026-07-05T11:07:43Z"},{"alias_kind":"arxiv_version","alias_value":"2505.16931v1","created_at":"2026-07-05T11:07:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.16931","created_at":"2026-07-05T11:07:43Z"},{"alias_kind":"pith_short_12","alias_value":"X27ATVDDTU3P","created_at":"2026-07-05T11:07:43Z"},{"alias_kind":"pith_short_16","alias_value":"X27ATVDDTU3PPVWM","created_at":"2026-07-05T11:07:43Z"},{"alias_kind":"pith_short_8","alias_value":"X27ATVDD","created_at":"2026-07-05T11:07:43Z"}],"graph_snapshots":[{"event_id":"sha256:73bc2c535577ebb35750e38281ec217a9e37af6485a9d687bc6491474a00abc4","target":"graph","created_at":"2026-07-05T11:07:43Z","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/2505.16931/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Personally identifiable information (PII) anonymization is a high-stakes task that poses a barrier to many open-science data sharing initiatives. While PII identification has made large strides in recent years, in practice, error thresholds and the recall/precision trade-off still limit the uptake of these anonymization pipelines. We present PIIvot, a lighter-weight framework for PII anonymization that leverages knowledge of the data context to simplify the PII detection problem. To demonstrate its effectiveness, we also contribute QATD-2k, the largest open-source real-world tutoring dataset o","authors_text":"Digory Smith, Matthew Zent, Simon Woodhead","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CL","submitted_at":"2025-05-22T17:22:28Z","title":"PIIvot: A Lightweight NLP Anonymization Framework for Question-Anchored Tutoring Dialogues"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.16931","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:d649cb9a397ac3447b13f800bb9014596fa7fee625d738cec35047926ae30ac2","target":"record","created_at":"2026-07-05T11:07:43Z","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":"39e9c2215910ae79934c93dbd00a53a2bd594f8a4ad92bc189e227a8f3309bef","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CL","submitted_at":"2025-05-22T17:22:28Z","title_canon_sha256":"d7d3e7d5fc2de90dd7b424d985006351a58cd8e82027a588600b1f4cc89fc8fc"},"schema_version":"1.0","source":{"id":"2505.16931","kind":"arxiv","version":1}},"canonical_sha256":"bebe09d4639d36f7d6cc17c9c7e44f2cd4a516d8e60b0389a03db905063b6715","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bebe09d4639d36f7d6cc17c9c7e44f2cd4a516d8e60b0389a03db905063b6715","first_computed_at":"2026-07-05T11:07:43.490064Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:07:43.490064Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"erjYMK4LJ/ceCd1tAFw5pWdQrdu2Ag9GHu5vZMHqY5wU4Qg1bEaWDIWBvobAcAaZZ5Lxo0jMAk1K3CGBEYhQBA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:07:43.490738Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.16931","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d649cb9a397ac3447b13f800bb9014596fa7fee625d738cec35047926ae30ac2","sha256:73bc2c535577ebb35750e38281ec217a9e37af6485a9d687bc6491474a00abc4"],"state_sha256":"1c9254adbab5b95cf793c49dc6c0a51fb346e365d4093e749fba8a63bac9f8fe"}