{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:V5POQ5DIVQ6TW6AAPJ6S5QUTCR","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":"f5b435e00cdea0d8fbc833e0e40a59dec81c8ca2ee19457e97aa6a6e5b7c1e01","cross_cats_sorted":["cs.CV","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2022-06-08T01:32:49Z","title_canon_sha256":"54d0f2dd042c448949e570881d8979236176bfba76ceb8cb05699d4460d3015e"},"schema_version":"1.0","source":{"id":"2206.04677","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2206.04677","created_at":"2026-07-05T05:40:06Z"},{"alias_kind":"arxiv_version","alias_value":"2206.04677v2","created_at":"2026-07-05T05:40:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2206.04677","created_at":"2026-07-05T05:40:06Z"},{"alias_kind":"pith_short_12","alias_value":"V5POQ5DIVQ6T","created_at":"2026-07-05T05:40:06Z"},{"alias_kind":"pith_short_16","alias_value":"V5POQ5DIVQ6TW6AA","created_at":"2026-07-05T05:40:06Z"},{"alias_kind":"pith_short_8","alias_value":"V5POQ5DI","created_at":"2026-07-05T05:40:06Z"}],"graph_snapshots":[{"event_id":"sha256:500fd226364581b4157948ff5474eb375365180dba80ddfde775227037a4fff0","target":"graph","created_at":"2026-07-05T05:40:06Z","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/2206.04677/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Existing research on training-time attacks for deep neural networks (DNNs), such as backdoors, largely assume that models are static once trained, and hidden backdoors trained into models remain active indefinitely. In practice, models are rarely static but evolve continuously to address distribution drifts in the underlying data. This paper explores the behavior of backdoor attacks in time-varying models, whose model weights are continually updated via fine-tuning to adapt to data drifts. Our theoretical analysis shows how fine-tuning with fresh data progressively \"erases\" the injected backdo","authors_text":"Arjun Nitin Bhagoji, Ben Y. Zhao, Haitao Zheng, Huiying Li, Yuxin Chen","cross_cats":["cs.CV","cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2022-06-08T01:32:49Z","title":"On the Permanence of Backdoors in Evolving Models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2206.04677","kind":"arxiv","version":2},"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:d3f6164f2b8e31247969467775816d01656b33cd70ad64769d4c1f381f47d0f2","target":"record","created_at":"2026-07-05T05:40:06Z","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":"f5b435e00cdea0d8fbc833e0e40a59dec81c8ca2ee19457e97aa6a6e5b7c1e01","cross_cats_sorted":["cs.CV","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2022-06-08T01:32:49Z","title_canon_sha256":"54d0f2dd042c448949e570881d8979236176bfba76ceb8cb05699d4460d3015e"},"schema_version":"1.0","source":{"id":"2206.04677","kind":"arxiv","version":2}},"canonical_sha256":"af5ee87468ac3d3b78007a7d2ec2931450ebb33763d7cc5dcbbdb695ae1161ce","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"af5ee87468ac3d3b78007a7d2ec2931450ebb33763d7cc5dcbbdb695ae1161ce","first_computed_at":"2026-07-05T05:40:06.972781Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:40:06.972781Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4jmvOdxRMGfOhehPIOSNRCyq6McF8SRGSh50AWLDq17q5Qj41JCRxC5XmRI1lZ46d+KP/Fh7lDI89G/hSs2PDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:40:06.973242Z","signed_message":"canonical_sha256_bytes"},"source_id":"2206.04677","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d3f6164f2b8e31247969467775816d01656b33cd70ad64769d4c1f381f47d0f2","sha256:500fd226364581b4157948ff5474eb375365180dba80ddfde775227037a4fff0"],"state_sha256":"389b9ad1de4880208b3f8df778f780fd94d08b46e34b14042b8d93fd3284920e"}