{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:HIB74IQ6Y7QNOHMMS2YFRLXF25","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":"efc19648e9d7e668b4c087956720491585a44583f7208094199d89835c68c39f","cross_cats_sorted":["cs.CL"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2023-11-01T12:42:14Z","title_canon_sha256":"99678e71fc46bc17237cd843f4e4d80f9b4160804c3365be4420850d0086cef3"},"schema_version":"1.0","source":{"id":"2311.00488","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2311.00488","created_at":"2026-07-05T07:07:58Z"},{"alias_kind":"arxiv_version","alias_value":"2311.00488v1","created_at":"2026-07-05T07:07:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2311.00488","created_at":"2026-07-05T07:07:58Z"},{"alias_kind":"pith_short_12","alias_value":"HIB74IQ6Y7QN","created_at":"2026-07-05T07:07:58Z"},{"alias_kind":"pith_short_16","alias_value":"HIB74IQ6Y7QNOHMM","created_at":"2026-07-05T07:07:58Z"},{"alias_kind":"pith_short_8","alias_value":"HIB74IQ6","created_at":"2026-07-05T07:07:58Z"}],"graph_snapshots":[{"event_id":"sha256:7f1ac0cb48b93c6a30fcbe5fba564d1c4700d5bae919d82317fe4d2b81addc34","target":"graph","created_at":"2026-07-05T07:07:58Z","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/2311.00488/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate the optimization target of Contrast-Consistent Search (CCS), which aims to recover the internal representations of truth of a large language model. We present a new loss function that we call the Midpoint-Displacement (MD) loss function. We demonstrate that for a certain hyper-parameter value this MD loss function leads to a prober with very similar weights to CCS. We further show that this hyper-parameter is not optimal and that with a better hyper-parameter the MD loss function attains a higher test accuracy than CCS.","authors_text":"Hugo Fry, Ian Fan, Jamie Wright, Nandi Schoots, Seamus Fallows","cross_cats":["cs.CL"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2023-11-01T12:42:14Z","title":"Comparing Optimization Targets for Contrast-Consistent Search"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2311.00488","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":"sha256:19144cc3cdb0fc0b584025ae64d0fb744a291b72a2b7e71c2d589fa3a445eea6","target":"record","created_at":"2026-07-05T07:07:58Z","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":"efc19648e9d7e668b4c087956720491585a44583f7208094199d89835c68c39f","cross_cats_sorted":["cs.CL"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2023-11-01T12:42:14Z","title_canon_sha256":"99678e71fc46bc17237cd843f4e4d80f9b4160804c3365be4420850d0086cef3"},"schema_version":"1.0","source":{"id":"2311.00488","kind":"arxiv","version":1}},"canonical_sha256":"3a03fe221ec7e0d71d8c96b058aee5d76fb837fcdb6728138c9cc76743fddad8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3a03fe221ec7e0d71d8c96b058aee5d76fb837fcdb6728138c9cc76743fddad8","first_computed_at":"2026-07-05T07:07:58.504630Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:07:58.504630Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RGwztVvbLG+McPsE0u/oS7jLdltcCYXTPPPAgDC2oaPCi7Ty1Wr5U9kGq/f5gMCTFq/atNtktuCevyYUcz4hBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T07:07:58.505110Z","signed_message":"canonical_sha256_bytes"},"source_id":"2311.00488","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:19144cc3cdb0fc0b584025ae64d0fb744a291b72a2b7e71c2d589fa3a445eea6","sha256:7f1ac0cb48b93c6a30fcbe5fba564d1c4700d5bae919d82317fe4d2b81addc34"],"state_sha256":"82c3760e9cd2f48db2e9dc152990bb97608dc827d421d15ec881eaa8e485bcf7"}