{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:7YN264Q4QKJFQQKUB5CTBJLQFP","short_pith_number":"pith:7YN264Q4","canonical_record":{"source":{"id":"2301.10964","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.IR","submitted_at":"2023-01-26T07:13:18Z","cross_cats_sorted":[],"title_canon_sha256":"81e8452e51bf2f0901031836affc7b833b3eaf86f0246978cd72b07b20e45a4f","abstract_canon_sha256":"e30939aacbb4ecde3ac9e689f92fd59448778d60bda3dd263d9219cbaa0220a4"},"schema_version":"1.0"},"canonical_sha256":"fe1baf721c82925841540f4530a5702bef4318b60f4604bad4874bce3377c768","source":{"kind":"arxiv","id":"2301.10964","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2301.10964","created_at":"2026-07-05T05:36:52Z"},{"alias_kind":"arxiv_version","alias_value":"2301.10964v2","created_at":"2026-07-05T05:36:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2301.10964","created_at":"2026-07-05T05:36:52Z"},{"alias_kind":"pith_short_12","alias_value":"7YN264Q4QKJF","created_at":"2026-07-05T05:36:52Z"},{"alias_kind":"pith_short_16","alias_value":"7YN264Q4QKJFQQKU","created_at":"2026-07-05T05:36:52Z"},{"alias_kind":"pith_short_8","alias_value":"7YN264Q4","created_at":"2026-07-05T05:36:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:7YN264Q4QKJFQQKUB5CTBJLQFP","target":"record","payload":{"canonical_record":{"source":{"id":"2301.10964","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.IR","submitted_at":"2023-01-26T07:13:18Z","cross_cats_sorted":[],"title_canon_sha256":"81e8452e51bf2f0901031836affc7b833b3eaf86f0246978cd72b07b20e45a4f","abstract_canon_sha256":"e30939aacbb4ecde3ac9e689f92fd59448778d60bda3dd263d9219cbaa0220a4"},"schema_version":"1.0"},"canonical_sha256":"fe1baf721c82925841540f4530a5702bef4318b60f4604bad4874bce3377c768","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:36:52.927622Z","signature_b64":"2FnuqgTINpCISDU4R98zO1G2oOehoiQ7u8pGud/5z8MZqwHdVAA2RNzfD4xjjz4ODBIfE+F0iUZ3Q2ZWga7QBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fe1baf721c82925841540f4530a5702bef4318b60f4604bad4874bce3377c768","last_reissued_at":"2026-07-05T05:36:52.926486Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:36:52.926486Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2301.10964","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:36:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x8k9RqQ9BV35sEESUg3EZsl9Px/k7XVlFgOrmQWTov4wrRMOVo1GnqffQkAX/3nebvMlz6qmILULjIWYPHSWDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T20:20:49.933590Z"},"content_sha256":"ab05f44ba5e2e2e39ebb7c3b4803633ab817364629f60d942f5fb0f9d8c07a8b","schema_version":"1.0","event_id":"sha256:ab05f44ba5e2e2e39ebb7c3b4803633ab817364629f60d942f5fb0f9d8c07a8b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:7YN264Q4QKJFQQKUB5CTBJLQFP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Interaction-level Membership Inference Attack Against Federated Recommender Systems","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.IR","authors_text":"Chaoqun Yang, Hongzhi Yin, Lizhen Cui, Quoc Viet Hung Nguyen, Tieke He, Wei Yuan","submitted_at":"2023-01-26T07:13:18Z","abstract_excerpt":"The marriage of federated learning and recommender system (FedRec) has been widely used to address the growing data privacy concerns in personalized recommendation services. In FedRecs, users' attribute information and behavior data (i.e., user-item interaction data) are kept locally on their personal devices, therefore, it is considered a fairly secure approach to protect user privacy. As a result, the privacy issue of FedRecs is rarely explored. Unfortunately, several recent studies reveal that FedRecs are vulnerable to user attribute inference attacks, highlighting the privacy concerns of F"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.10964","kind":"arxiv","version":2},"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/2301.10964/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":"2026-07-05T05:36:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FSwvsr+jPCzcQIlKFP7ZGipYi0R00LtY2Rl1pi1pKid/XY1Fs9XNFfXos6vmKEIu6F+9r51oTH9DDTlm3UbWCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T20:20:49.934119Z"},"content_sha256":"9d13b7a569506ddee690af6f1da4eb975c8f027af38c07f760589681b2b7d88b","schema_version":"1.0","event_id":"sha256:9d13b7a569506ddee690af6f1da4eb975c8f027af38c07f760589681b2b7d88b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7YN264Q4QKJFQQKUB5CTBJLQFP/bundle.json","state_url":"https://pith.science/pith/7YN264Q4QKJFQQKUB5CTBJLQFP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7YN264Q4QKJFQQKUB5CTBJLQFP/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":"2026-08-04T20:20:49Z","links":{"resolver":"https://pith.science/pith/7YN264Q4QKJFQQKUB5CTBJLQFP","bundle":"https://pith.science/pith/7YN264Q4QKJFQQKUB5CTBJLQFP/bundle.json","state":"https://pith.science/pith/7YN264Q4QKJFQQKUB5CTBJLQFP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7YN264Q4QKJFQQKUB5CTBJLQFP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:7YN264Q4QKJFQQKUB5CTBJLQFP","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":"e30939aacbb4ecde3ac9e689f92fd59448778d60bda3dd263d9219cbaa0220a4","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.IR","submitted_at":"2023-01-26T07:13:18Z","title_canon_sha256":"81e8452e51bf2f0901031836affc7b833b3eaf86f0246978cd72b07b20e45a4f"},"schema_version":"1.0","source":{"id":"2301.10964","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2301.10964","created_at":"2026-07-05T05:36:52Z"},{"alias_kind":"arxiv_version","alias_value":"2301.10964v2","created_at":"2026-07-05T05:36:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2301.10964","created_at":"2026-07-05T05:36:52Z"},{"alias_kind":"pith_short_12","alias_value":"7YN264Q4QKJF","created_at":"2026-07-05T05:36:52Z"},{"alias_kind":"pith_short_16","alias_value":"7YN264Q4QKJFQQKU","created_at":"2026-07-05T05:36:52Z"},{"alias_kind":"pith_short_8","alias_value":"7YN264Q4","created_at":"2026-07-05T05:36:52Z"}],"graph_snapshots":[{"event_id":"sha256:9d13b7a569506ddee690af6f1da4eb975c8f027af38c07f760589681b2b7d88b","target":"graph","created_at":"2026-07-05T05:36:52Z","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/2301.10964/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The marriage of federated learning and recommender system (FedRec) has been widely used to address the growing data privacy concerns in personalized recommendation services. In FedRecs, users' attribute information and behavior data (i.e., user-item interaction data) are kept locally on their personal devices, therefore, it is considered a fairly secure approach to protect user privacy. As a result, the privacy issue of FedRecs is rarely explored. Unfortunately, several recent studies reveal that FedRecs are vulnerable to user attribute inference attacks, highlighting the privacy concerns of F","authors_text":"Chaoqun Yang, Hongzhi Yin, Lizhen Cui, Quoc Viet Hung Nguyen, Tieke He, Wei Yuan","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.IR","submitted_at":"2023-01-26T07:13:18Z","title":"Interaction-level Membership Inference Attack Against Federated Recommender Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.10964","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:ab05f44ba5e2e2e39ebb7c3b4803633ab817364629f60d942f5fb0f9d8c07a8b","target":"record","created_at":"2026-07-05T05:36:52Z","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":"e30939aacbb4ecde3ac9e689f92fd59448778d60bda3dd263d9219cbaa0220a4","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.IR","submitted_at":"2023-01-26T07:13:18Z","title_canon_sha256":"81e8452e51bf2f0901031836affc7b833b3eaf86f0246978cd72b07b20e45a4f"},"schema_version":"1.0","source":{"id":"2301.10964","kind":"arxiv","version":2}},"canonical_sha256":"fe1baf721c82925841540f4530a5702bef4318b60f4604bad4874bce3377c768","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fe1baf721c82925841540f4530a5702bef4318b60f4604bad4874bce3377c768","first_computed_at":"2026-07-05T05:36:52.926486Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:36:52.926486Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2FnuqgTINpCISDU4R98zO1G2oOehoiQ7u8pGud/5z8MZqwHdVAA2RNzfD4xjjz4ODBIfE+F0iUZ3Q2ZWga7QBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:36:52.927622Z","signed_message":"canonical_sha256_bytes"},"source_id":"2301.10964","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ab05f44ba5e2e2e39ebb7c3b4803633ab817364629f60d942f5fb0f9d8c07a8b","sha256:9d13b7a569506ddee690af6f1da4eb975c8f027af38c07f760589681b2b7d88b"],"state_sha256":"e5d9a5d6ac512a934b9c9c15b297b8dc032ecc925e96893ad0fe22767f6e64c1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"28UWEQhIC1WtgeJ1b+YQ79Z/zcdTQn+dDmWaLEC7rc3wK9Q8Q9OhtXQWJoeuYxY/kJAgW342fExgDQ2h1ijZDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T20:20:49.938596Z","bundle_sha256":"ee53632906ede46384bcb0f920bcccb98129997027e847719ad1f3f257a0a920"}}