{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:Z3LIJUJYMZW6HGITIYA3WAC2EY","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":"d50e4efa163a90062d0d6f8850844f26610c55f3a3c889105cc99595466d2181","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-06-26T18:21:33Z","title_canon_sha256":"a50db653fb6813dad7c4c11cd23041c425673c57b0fd5a112c0caf411732816d"},"schema_version":"1.0","source":{"id":"2606.28525","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.28525","created_at":"2026-06-30T00:15:16Z"},{"alias_kind":"arxiv_version","alias_value":"2606.28525v1","created_at":"2026-06-30T00:15:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.28525","created_at":"2026-06-30T00:15:16Z"},{"alias_kind":"pith_short_12","alias_value":"Z3LIJUJYMZW6","created_at":"2026-06-30T00:15:16Z"},{"alias_kind":"pith_short_16","alias_value":"Z3LIJUJYMZW6HGIT","created_at":"2026-06-30T00:15:16Z"},{"alias_kind":"pith_short_8","alias_value":"Z3LIJUJY","created_at":"2026-06-30T00:15:16Z"}],"graph_snapshots":[{"event_id":"sha256:29e90e9796d5377f72a063632b0750f3b268a9fc08b0bfa98e8da6cd6d5fc6a5","target":"graph","created_at":"2026-06-30T00:15:16Z","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/2606.28525/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Fine-tuning on harmless data can partially undo behaviors acquired earlier in training. Safety can erode under benign post-alignment updates, unlearned capabilities can re-emerge, latent traits can transfer through apparently unrelated supervision, and related post-alignment fragility appears in other generative settings. We argue these phenomena are usefully viewed through a common training-history lens. Our hypothesis is geometric: large early training phases create dominant behavioral manifolds, while later alignment or specialization phases are shallower displacements from them. Subsequent","authors_text":"Nils Lukas, Samuele Poppi","cross_cats":["cs.AI"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-06-26T18:21:33Z","title":"A Gravitational Interpretation of Fine-Tuning Reversion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.28525","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":"sha256:75b3e773c6154477204bbcf0b69bba573edd5a6e308a576a367058c3a72d161a","target":"record","created_at":"2026-06-30T00:15:16Z","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":"d50e4efa163a90062d0d6f8850844f26610c55f3a3c889105cc99595466d2181","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-06-26T18:21:33Z","title_canon_sha256":"a50db653fb6813dad7c4c11cd23041c425673c57b0fd5a112c0caf411732816d"},"schema_version":"1.0","source":{"id":"2606.28525","kind":"arxiv","version":1}},"canonical_sha256":"ced684d138666de399134601bb005a2606c2e50c57073ba5b1bf6e976d5b43ef","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ced684d138666de399134601bb005a2606c2e50c57073ba5b1bf6e976d5b43ef","first_computed_at":"2026-06-30T00:15:16.916438Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-30T00:15:16.916438Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3uKCd8nLVdTdcZ204SP+WjczV2lGBvv1/zvK4UWBdKKGBF4uMzuNqgpGl/PNdKZUN1tcBjWQ2raKo083Hd1EAg==","signature_status":"signed_v1","signed_at":"2026-06-30T00:15:16.916858Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.28525","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:75b3e773c6154477204bbcf0b69bba573edd5a6e308a576a367058c3a72d161a","sha256:29e90e9796d5377f72a063632b0750f3b268a9fc08b0bfa98e8da6cd6d5fc6a5"],"state_sha256":"8258a24aee4905271f5d8817a4fd97cc41babaaa399234b24b0ae33dde8242e5"}