{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:C7FHDPAHFPKEH5DIDAXCMPQSO4","short_pith_number":"pith:C7FHDPAH","canonical_record":{"source":{"id":"2606.18309","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-06-16T08:29:43Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"f1e6c5073853c26d99ea73b8715e722c847409d1c59ceb88637162ae822dc5ae","abstract_canon_sha256":"f2384ff68a614dbcfb1cb78c452176d0771f7bb504ae470f1d79db399079c661"},"schema_version":"1.0"},"canonical_sha256":"17ca71bc072bd443f468182e263e12770eff5e835fc87dbd6199bece9aba5c00","source":{"kind":"arxiv","id":"2606.18309","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.18309","created_at":"2026-06-19T16:10:57Z"},{"alias_kind":"arxiv_version","alias_value":"2606.18309v1","created_at":"2026-06-19T16:10:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.18309","created_at":"2026-06-19T16:10:57Z"},{"alias_kind":"pith_short_12","alias_value":"C7FHDPAHFPKE","created_at":"2026-06-19T16:10:57Z"},{"alias_kind":"pith_short_16","alias_value":"C7FHDPAHFPKEH5DI","created_at":"2026-06-19T16:10:57Z"},{"alias_kind":"pith_short_8","alias_value":"C7FHDPAH","created_at":"2026-06-19T16:10:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:C7FHDPAHFPKEH5DIDAXCMPQSO4","target":"record","payload":{"canonical_record":{"source":{"id":"2606.18309","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-06-16T08:29:43Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"f1e6c5073853c26d99ea73b8715e722c847409d1c59ceb88637162ae822dc5ae","abstract_canon_sha256":"f2384ff68a614dbcfb1cb78c452176d0771f7bb504ae470f1d79db399079c661"},"schema_version":"1.0"},"canonical_sha256":"17ca71bc072bd443f468182e263e12770eff5e835fc87dbd6199bece9aba5c00","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-19T16:10:57.587642Z","signature_b64":"jrbyRLvR4MG2+kgwOZzSSNBXzLsGM7tdNXbaY8hUmAXQA0h/u7y0eqNmBJdmpFsWTCOGyGtC3nBY06Ivk3EnBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"17ca71bc072bd443f468182e263e12770eff5e835fc87dbd6199bece9aba5c00","last_reissued_at":"2026-06-19T16:10:57.587289Z","signature_status":"signed_v1","first_computed_at":"2026-06-19T16:10:57.587289Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.18309","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-19T16:10:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Lz72ng0vj1mStFxhtQ3mHW4qNmja47QhXgTWT2pD3Q1galPpojLt8ZeUKss0mkQaSwnEcuaPAo6qftQGuFzyCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T10:56:10.702666Z"},"content_sha256":"ff61e2d68c279450e3544f2ab44cd924ac128aa39bad3abab82e8fb62e2c7bc0","schema_version":"1.0","event_id":"sha256:ff61e2d68c279450e3544f2ab44cd924ac128aa39bad3abab82e8fb62e2c7bc0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:C7FHDPAHFPKEH5DIDAXCMPQSO4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"SAGE: Retain-Aware Post-Hoc Sanitization of Final Unlearning Vector","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.LG","authors_text":"Haiyin Ran, Hanling Tian, Jingyuan Zhang, Peixi Wen, Xiaolin Huang, Xinwen Cheng, Yucheng Bai, Zhehao Huang, Zhengbao He","submitted_at":"2026-06-16T08:29:43Z","abstract_excerpt":"Large Language Model (LLM) unlearning aims to remove undesirable knowledge or behaviors while preserving retained capabilities. Current unlearning methods all involve a trade-off between unlearning and retention. We have found that the retention activation bias can also be used to quantify the damage an unlearning method inflicts on retention, without considering the specific implementation of the unlearning process. This allows us to restore retention performance for any unlearning method using a post-hoc approach. Therefore, we propose a complementary post-hoc setting to sanitize the final u"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.18309","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2606.18309/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-19T16:10:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NvfP2+peQNgizbZpvk0LJg9ZHE0wS567CDFS/tcxQJfLocM++jztpMi36BHGX5TS7yDltZb/0VDLMYUu23ZRCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T10:56:10.703045Z"},"content_sha256":"7c94abb7b0d47c75b91ee1aeed2223715046fe8063cfbe44ec98a7cf7b3e5756","schema_version":"1.0","event_id":"sha256:7c94abb7b0d47c75b91ee1aeed2223715046fe8063cfbe44ec98a7cf7b3e5756"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/C7FHDPAHFPKEH5DIDAXCMPQSO4/bundle.json","state_url":"https://pith.science/pith/C7FHDPAHFPKEH5DIDAXCMPQSO4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/C7FHDPAHFPKEH5DIDAXCMPQSO4/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-30T10:56:10Z","links":{"resolver":"https://pith.science/pith/C7FHDPAHFPKEH5DIDAXCMPQSO4","bundle":"https://pith.science/pith/C7FHDPAHFPKEH5DIDAXCMPQSO4/bundle.json","state":"https://pith.science/pith/C7FHDPAHFPKEH5DIDAXCMPQSO4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/C7FHDPAHFPKEH5DIDAXCMPQSO4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:C7FHDPAHFPKEH5DIDAXCMPQSO4","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":"f2384ff68a614dbcfb1cb78c452176d0771f7bb504ae470f1d79db399079c661","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-06-16T08:29:43Z","title_canon_sha256":"f1e6c5073853c26d99ea73b8715e722c847409d1c59ceb88637162ae822dc5ae"},"schema_version":"1.0","source":{"id":"2606.18309","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.18309","created_at":"2026-06-19T16:10:57Z"},{"alias_kind":"arxiv_version","alias_value":"2606.18309v1","created_at":"2026-06-19T16:10:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.18309","created_at":"2026-06-19T16:10:57Z"},{"alias_kind":"pith_short_12","alias_value":"C7FHDPAHFPKE","created_at":"2026-06-19T16:10:57Z"},{"alias_kind":"pith_short_16","alias_value":"C7FHDPAHFPKEH5DI","created_at":"2026-06-19T16:10:57Z"},{"alias_kind":"pith_short_8","alias_value":"C7FHDPAH","created_at":"2026-06-19T16:10:57Z"}],"graph_snapshots":[{"event_id":"sha256:7c94abb7b0d47c75b91ee1aeed2223715046fe8063cfbe44ec98a7cf7b3e5756","target":"graph","created_at":"2026-06-19T16:10:57Z","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/2606.18309/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Large Language Model (LLM) unlearning aims to remove undesirable knowledge or behaviors while preserving retained capabilities. Current unlearning methods all involve a trade-off between unlearning and retention. We have found that the retention activation bias can also be used to quantify the damage an unlearning method inflicts on retention, without considering the specific implementation of the unlearning process. This allows us to restore retention performance for any unlearning method using a post-hoc approach. Therefore, we propose a complementary post-hoc setting to sanitize the final u","authors_text":"Haiyin Ran, Hanling Tian, Jingyuan Zhang, Peixi Wen, Xiaolin Huang, Xinwen Cheng, Yucheng Bai, Zhehao Huang, Zhengbao He","cross_cats":["cs.AI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-06-16T08:29:43Z","title":"SAGE: Retain-Aware Post-Hoc Sanitization of Final Unlearning Vector"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.18309","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:ff61e2d68c279450e3544f2ab44cd924ac128aa39bad3abab82e8fb62e2c7bc0","target":"record","created_at":"2026-06-19T16:10:57Z","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":"f2384ff68a614dbcfb1cb78c452176d0771f7bb504ae470f1d79db399079c661","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-06-16T08:29:43Z","title_canon_sha256":"f1e6c5073853c26d99ea73b8715e722c847409d1c59ceb88637162ae822dc5ae"},"schema_version":"1.0","source":{"id":"2606.18309","kind":"arxiv","version":1}},"canonical_sha256":"17ca71bc072bd443f468182e263e12770eff5e835fc87dbd6199bece9aba5c00","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"17ca71bc072bd443f468182e263e12770eff5e835fc87dbd6199bece9aba5c00","first_computed_at":"2026-06-19T16:10:57.587289Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-19T16:10:57.587289Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jrbyRLvR4MG2+kgwOZzSSNBXzLsGM7tdNXbaY8hUmAXQA0h/u7y0eqNmBJdmpFsWTCOGyGtC3nBY06Ivk3EnBQ==","signature_status":"signed_v1","signed_at":"2026-06-19T16:10:57.587642Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.18309","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ff61e2d68c279450e3544f2ab44cd924ac128aa39bad3abab82e8fb62e2c7bc0","sha256:7c94abb7b0d47c75b91ee1aeed2223715046fe8063cfbe44ec98a7cf7b3e5756"],"state_sha256":"63f526bed15d7c7f6203efe342e8ed47a6f5597b103252862f73a931d972c6a0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KJyyz8guGsYH+yW9jmVinm39mPSJ3a6mzEPo4/ZXqqXrsMQhL+y4TpFnOWW5q+dhTOUMbqOcRGaffI/9jf77Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-30T10:56:10.705042Z","bundle_sha256":"2fc8120270dc7f2732c32f8869c687f85c4f89b0c0eeec99a4486ee16dfd4abf"}}