{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:DNU2UI5FL3QGIG65OWTFCH73GJ","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":"07cef4ecff3e66ded6edb56fd958c62f98711959a51ad3e93c80c5fc91c12075","cross_cats_sorted":["cs.AI","cs.SE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-05-20T13:19:27Z","title_canon_sha256":"c9ec6bf945288d356d9b75af585fd1afb8615c1f5a41b195d901255ccffd7820"},"schema_version":"1.0","source":{"id":"2605.21146","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.21146","created_at":"2026-05-21T01:05:39Z"},{"alias_kind":"arxiv_version","alias_value":"2605.21146v1","created_at":"2026-05-21T01:05:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.21146","created_at":"2026-05-21T01:05:39Z"},{"alias_kind":"pith_short_12","alias_value":"DNU2UI5FL3QG","created_at":"2026-05-21T01:05:39Z"},{"alias_kind":"pith_short_16","alias_value":"DNU2UI5FL3QGIG65","created_at":"2026-05-21T01:05:39Z"},{"alias_kind":"pith_short_8","alias_value":"DNU2UI5F","created_at":"2026-05-21T01:05:39Z"}],"graph_snapshots":[{"event_id":"sha256:82fa2ce55323ca0a8bd49ff646231932bf927c3cab49a4f3c7bf2f5adf4c3515","target":"graph","created_at":"2026-05-21T01:05:39Z","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/2605.21146/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Modern DNNs are repeatedly fine-tuned to incorporate new data and functionality. This evolutionary workflow introduces a security risk when updated data cannot be fully trusted, as adversaries may implant Trojans during fine-tuning. We present MIST, a Trojan detection approach that analyzes how a model's internal representations change during fine-tuning. Rather than attempting to reconstruct trigger conditions, MIST characterizes benign model evolution using pre-activation spectra and flags updates whose spectral deviations are inconsistent with this reference. This framing treats Trojan dete","authors_text":"Jinhan Kim, Paolo Tonella, Samuele Pasini","cross_cats":["cs.AI","cs.SE"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-05-20T13:19:27Z","title":"Detecting Trojaned DNNs via Spectral Regression Analysis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.21146","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":"sha256:947ef6873d373f151afce91d0f16f9a02c61ee14f2c3ca2eddcdb7a781786fef","target":"record","created_at":"2026-05-21T01:05:39Z","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":"07cef4ecff3e66ded6edb56fd958c62f98711959a51ad3e93c80c5fc91c12075","cross_cats_sorted":["cs.AI","cs.SE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-05-20T13:19:27Z","title_canon_sha256":"c9ec6bf945288d356d9b75af585fd1afb8615c1f5a41b195d901255ccffd7820"},"schema_version":"1.0","source":{"id":"2605.21146","kind":"arxiv","version":1}},"canonical_sha256":"1b69aa23a55ee0641bdd75a6511ffb324b4ad8ae648c170532651f51a2d25f9c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1b69aa23a55ee0641bdd75a6511ffb324b4ad8ae648c170532651f51a2d25f9c","first_computed_at":"2026-05-21T01:05:39.862789Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-21T01:05:39.862789Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ivp2jTKCoHaXP+s9KU8kpKXYXi1qRxLGWsoTGK+awu2gm56aB4duwPrmdn2uojFfWKHZftUOoXtz9HhOlN/kAA==","signature_status":"signed_v1","signed_at":"2026-05-21T01:05:39.863577Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.21146","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:947ef6873d373f151afce91d0f16f9a02c61ee14f2c3ca2eddcdb7a781786fef","sha256:82fa2ce55323ca0a8bd49ff646231932bf927c3cab49a4f3c7bf2f5adf4c3515"],"state_sha256":"40ed9bbf5a95599addac0d3cb7d2bcf77f8f2f654460b750f182226330f1d159"}