{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:HPATTTAZBDZCBEA6R4JD5HQ5UV","short_pith_number":"pith:HPATTTAZ","canonical_record":{"source":{"id":"1908.04486","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DS","submitted_at":"2019-08-13T04:46:10Z","cross_cats_sorted":["cs.CR","cs.MA"],"title_canon_sha256":"d55049d9f64f27df68596fbc80eab3b91a1528e01432bd5827487e35bb1a3918","abstract_canon_sha256":"3810a74892d25e5b34e8e223c8fc9f3b34454808f9b8a30c4c26994b3d3e4374"},"schema_version":"1.0"},"canonical_sha256":"3bc139cc1908f220901e8f123e9e1da5473e52e2463d6ee141299ed5056c6392","source":{"kind":"arxiv","id":"1908.04486","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.04486","created_at":"2026-07-05T01:14:27Z"},{"alias_kind":"arxiv_version","alias_value":"1908.04486v3","created_at":"2026-07-05T01:14:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.04486","created_at":"2026-07-05T01:14:27Z"},{"alias_kind":"pith_short_12","alias_value":"HPATTTAZBDZC","created_at":"2026-07-05T01:14:27Z"},{"alias_kind":"pith_short_16","alias_value":"HPATTTAZBDZCBEA6","created_at":"2026-07-05T01:14:27Z"},{"alias_kind":"pith_short_8","alias_value":"HPATTTAZ","created_at":"2026-07-05T01:14:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:HPATTTAZBDZCBEA6R4JD5HQ5UV","target":"record","payload":{"canonical_record":{"source":{"id":"1908.04486","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DS","submitted_at":"2019-08-13T04:46:10Z","cross_cats_sorted":["cs.CR","cs.MA"],"title_canon_sha256":"d55049d9f64f27df68596fbc80eab3b91a1528e01432bd5827487e35bb1a3918","abstract_canon_sha256":"3810a74892d25e5b34e8e223c8fc9f3b34454808f9b8a30c4c26994b3d3e4374"},"schema_version":"1.0"},"canonical_sha256":"3bc139cc1908f220901e8f123e9e1da5473e52e2463d6ee141299ed5056c6392","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:14:27.300039Z","signature_b64":"h1XaCiK0qy/Nt7+Yee0egu0RDSJVgTJXNe07rBFHBY8mKsw7gLUGZ/tKuO6fnEE2Sei4vqcnl2EZ+DO8p5mCAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3bc139cc1908f220901e8f123e9e1da5473e52e2463d6ee141299ed5056c6392","last_reissued_at":"2026-07-05T01:14:27.299544Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:14:27.299544Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.04486","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:14:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y6YIPbd6/8k2lRYqcOIChjQ1vI2Y+sMkCPyqYWBEkbYtA7qeE6A+gLSVJYYflayIJFjvUYzaLXynNZEUA2PoDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T20:52:04.220339Z"},"content_sha256":"fc26c65e5a4a6d73a85b5d98e98d6eceebb550a936d0e5dc7f3f05295d12847c","schema_version":"1.0","event_id":"sha256:fc26c65e5a4a6d73a85b5d98e98d6eceebb550a936d0e5dc7f3f05295d12847c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:HPATTTAZBDZCBEA6R4JD5HQ5UV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Private Rank Aggregation under Local Differential Privacy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CR","cs.MA"],"primary_cat":"cs.DS","authors_text":"Gang Li, Jiqiang Liu, Ziqi Yan","submitted_at":"2019-08-13T04:46:10Z","abstract_excerpt":"As a method for answer aggregation in crowdsourced data management, rank aggregation aims to combine different agents' answers or preferences over the given alternatives into an aggregate ranking which agrees the most with the preferences. However, since the aggregation procedure relies on a data curator, the privacy within the agents' preference data could be compromised when the curator is untrusted. Existing works that guarantee differential privacy in rank aggregation all assume that the data curator is trusted. In this paper, we formulate and address the problem of locally differentially "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.04486","kind":"arxiv","version":3},"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/1908.04486/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":"2026-07-05T01:14:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Jc9/5v3M/lUrzYDrtEUzrxYErQLdW7npCkU8B6F2ae/YwIziyOQnYufgVtef14UZTGTpU+ldiBHFEt6lymH2BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T20:52:04.220859Z"},"content_sha256":"878e80069be779f4165f15e38d9a193675eccb966dde6c3ba7f318e0753cce2e","schema_version":"1.0","event_id":"sha256:878e80069be779f4165f15e38d9a193675eccb966dde6c3ba7f318e0753cce2e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HPATTTAZBDZCBEA6R4JD5HQ5UV/bundle.json","state_url":"https://pith.science/pith/HPATTTAZBDZCBEA6R4JD5HQ5UV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HPATTTAZBDZCBEA6R4JD5HQ5UV/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":"2026-08-15T20:52:04Z","links":{"resolver":"https://pith.science/pith/HPATTTAZBDZCBEA6R4JD5HQ5UV","bundle":"https://pith.science/pith/HPATTTAZBDZCBEA6R4JD5HQ5UV/bundle.json","state":"https://pith.science/pith/HPATTTAZBDZCBEA6R4JD5HQ5UV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HPATTTAZBDZCBEA6R4JD5HQ5UV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:HPATTTAZBDZCBEA6R4JD5HQ5UV","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":"3810a74892d25e5b34e8e223c8fc9f3b34454808f9b8a30c4c26994b3d3e4374","cross_cats_sorted":["cs.CR","cs.MA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DS","submitted_at":"2019-08-13T04:46:10Z","title_canon_sha256":"d55049d9f64f27df68596fbc80eab3b91a1528e01432bd5827487e35bb1a3918"},"schema_version":"1.0","source":{"id":"1908.04486","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.04486","created_at":"2026-07-05T01:14:27Z"},{"alias_kind":"arxiv_version","alias_value":"1908.04486v3","created_at":"2026-07-05T01:14:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.04486","created_at":"2026-07-05T01:14:27Z"},{"alias_kind":"pith_short_12","alias_value":"HPATTTAZBDZC","created_at":"2026-07-05T01:14:27Z"},{"alias_kind":"pith_short_16","alias_value":"HPATTTAZBDZCBEA6","created_at":"2026-07-05T01:14:27Z"},{"alias_kind":"pith_short_8","alias_value":"HPATTTAZ","created_at":"2026-07-05T01:14:27Z"}],"graph_snapshots":[{"event_id":"sha256:878e80069be779f4165f15e38d9a193675eccb966dde6c3ba7f318e0753cce2e","target":"graph","created_at":"2026-07-05T01:14:27Z","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/1908.04486/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"As a method for answer aggregation in crowdsourced data management, rank aggregation aims to combine different agents' answers or preferences over the given alternatives into an aggregate ranking which agrees the most with the preferences. However, since the aggregation procedure relies on a data curator, the privacy within the agents' preference data could be compromised when the curator is untrusted. Existing works that guarantee differential privacy in rank aggregation all assume that the data curator is trusted. In this paper, we formulate and address the problem of locally differentially ","authors_text":"Gang Li, Jiqiang Liu, Ziqi Yan","cross_cats":["cs.CR","cs.MA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DS","submitted_at":"2019-08-13T04:46:10Z","title":"Private Rank Aggregation under Local Differential Privacy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.04486","kind":"arxiv","version":3},"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:fc26c65e5a4a6d73a85b5d98e98d6eceebb550a936d0e5dc7f3f05295d12847c","target":"record","created_at":"2026-07-05T01:14:27Z","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":"3810a74892d25e5b34e8e223c8fc9f3b34454808f9b8a30c4c26994b3d3e4374","cross_cats_sorted":["cs.CR","cs.MA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DS","submitted_at":"2019-08-13T04:46:10Z","title_canon_sha256":"d55049d9f64f27df68596fbc80eab3b91a1528e01432bd5827487e35bb1a3918"},"schema_version":"1.0","source":{"id":"1908.04486","kind":"arxiv","version":3}},"canonical_sha256":"3bc139cc1908f220901e8f123e9e1da5473e52e2463d6ee141299ed5056c6392","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3bc139cc1908f220901e8f123e9e1da5473e52e2463d6ee141299ed5056c6392","first_computed_at":"2026-07-05T01:14:27.299544Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:14:27.299544Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"h1XaCiK0qy/Nt7+Yee0egu0RDSJVgTJXNe07rBFHBY8mKsw7gLUGZ/tKuO6fnEE2Sei4vqcnl2EZ+DO8p5mCAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:14:27.300039Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.04486","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fc26c65e5a4a6d73a85b5d98e98d6eceebb550a936d0e5dc7f3f05295d12847c","sha256:878e80069be779f4165f15e38d9a193675eccb966dde6c3ba7f318e0753cce2e"],"state_sha256":"0842ff90ed8f183e11c72821d79739500e9c35a7b6df0d5d33e777e54a1efba2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TRAlnhoqsuV2BGvwNNp5mswJEPJaJ9Fxbo3TJPJ9RMrPwgfAiCSe9XZ90HEO5UqUyCbGSVH80wPHyHqbw4mbBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T20:52:04.225309Z","bundle_sha256":"3a1ca824ea7c7eb7d100f92a0a9636d3abbb69a1f0fc9e3ba704f2597a7306ee"}}