{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:PPODT7OEPIUU7JHW7DZJK7KVRS","short_pith_number":"pith:PPODT7OE","canonical_record":{"source":{"id":"1907.05014","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-07-11T06:34:02Z","cross_cats_sorted":["cs.DB"],"title_canon_sha256":"cfed46a73ad38a082870453471eb8ab1a85ee74bd881b7646f97a2107fe90c7d","abstract_canon_sha256":"59ae6c8c93e39599f3c662c8ad3b7a9128ca5a5ec5d1b5aa8cf1ec0b6aded0a9"},"schema_version":"1.0"},"canonical_sha256":"7bdc39fdc47a294fa4f6f8f2957d558c8ad44a2d6149a4d6a8300165790585b5","source":{"kind":"arxiv","id":"1907.05014","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.05014","created_at":"2026-05-17T23:40:54Z"},{"alias_kind":"arxiv_version","alias_value":"1907.05014v1","created_at":"2026-05-17T23:40:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.05014","created_at":"2026-05-17T23:40:54Z"},{"alias_kind":"pith_short_12","alias_value":"PPODT7OEPIUU","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_16","alias_value":"PPODT7OEPIUU7JHW","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_8","alias_value":"PPODT7OE","created_at":"2026-05-18T12:33:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:PPODT7OEPIUU7JHW7DZJK7KVRS","target":"record","payload":{"canonical_record":{"source":{"id":"1907.05014","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-07-11T06:34:02Z","cross_cats_sorted":["cs.DB"],"title_canon_sha256":"cfed46a73ad38a082870453471eb8ab1a85ee74bd881b7646f97a2107fe90c7d","abstract_canon_sha256":"59ae6c8c93e39599f3c662c8ad3b7a9128ca5a5ec5d1b5aa8cf1ec0b6aded0a9"},"schema_version":"1.0"},"canonical_sha256":"7bdc39fdc47a294fa4f6f8f2957d558c8ad44a2d6149a4d6a8300165790585b5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:54.144196Z","signature_b64":"GCiIp+NxE5V24hXqhkNftt1X2VyS+sNJFA/taWUeA+PxInViZBtGAT3MW3JCA1Z1zgPk/b3z+rMku6gs0QVUAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7bdc39fdc47a294fa4f6f8f2957d558c8ad44a2d6149a4d6a8300165790585b5","last_reissued_at":"2026-05-17T23:40:54.143382Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:54.143382Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.05014","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":"2026-05-17T23:40:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+B8rZRzOgZAhdW+NLUW3z9pc2CERXPifG3AElaNB6FzfOr5D0eTh8VSuRZaGISZT1I+eSvQb4khzIlQ6PTEBBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T01:45:06.787646Z"},"content_sha256":"ce1be0a8fc2d37b6b30db3d5aded4dca646f19b3ad2b5b44aca0c0ad98f56c8e","schema_version":"1.0","event_id":"sha256:ce1be0a8fc2d37b6b30db3d5aded4dca646f19b3ad2b5b44aca0c0ad98f56c8e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:PPODT7OEPIUU7JHW7DZJK7KVRS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Conditional Analysis for Key-Value Data with Local Differential Privacy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.DB"],"primary_cat":"cs.CR","authors_text":"Jun Zhao, Lin Sun, Shuo Feng, Tao Bai, Teng Wang, Xiaojun Ye","submitted_at":"2019-07-11T06:34:02Z","abstract_excerpt":"Local differential privacy (LDP) has been deemed as the de facto measure for privacy-preserving distributed data collection and analysis. Recently, researchers have extended LDP to the basic data type in NoSQL systems: the key-value data, and show its feasibilities in mean estimation and frequency estimation. In this paper, we develop a set of new perturbation mechanisms for key-value data collection and analysis under the strong model of local differential privacy. Since many modern machine learning tasks rely on the availability of conditional probability or the marginal statistics, we then "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.05014","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":""},"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":"2026-05-17T23:40:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gOxSDvB9bYmLD4WOCP2LuKFFxomdJRITFQ4idgBWKPPTJo1qE5sgnkVdCXywoVOJxHkNw3bHtAAtZCnTx6MOBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T01:45:06.787996Z"},"content_sha256":"dda6a02a02305500e105cc1dc84a2e893d2a2d78b2cc79d6eedfba9f62259f08","schema_version":"1.0","event_id":"sha256:dda6a02a02305500e105cc1dc84a2e893d2a2d78b2cc79d6eedfba9f62259f08"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PPODT7OEPIUU7JHW7DZJK7KVRS/bundle.json","state_url":"https://pith.science/pith/PPODT7OEPIUU7JHW7DZJK7KVRS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PPODT7OEPIUU7JHW7DZJK7KVRS/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":"2026-05-28T01:45:06Z","links":{"resolver":"https://pith.science/pith/PPODT7OEPIUU7JHW7DZJK7KVRS","bundle":"https://pith.science/pith/PPODT7OEPIUU7JHW7DZJK7KVRS/bundle.json","state":"https://pith.science/pith/PPODT7OEPIUU7JHW7DZJK7KVRS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PPODT7OEPIUU7JHW7DZJK7KVRS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:PPODT7OEPIUU7JHW7DZJK7KVRS","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":"59ae6c8c93e39599f3c662c8ad3b7a9128ca5a5ec5d1b5aa8cf1ec0b6aded0a9","cross_cats_sorted":["cs.DB"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-07-11T06:34:02Z","title_canon_sha256":"cfed46a73ad38a082870453471eb8ab1a85ee74bd881b7646f97a2107fe90c7d"},"schema_version":"1.0","source":{"id":"1907.05014","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.05014","created_at":"2026-05-17T23:40:54Z"},{"alias_kind":"arxiv_version","alias_value":"1907.05014v1","created_at":"2026-05-17T23:40:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.05014","created_at":"2026-05-17T23:40:54Z"},{"alias_kind":"pith_short_12","alias_value":"PPODT7OEPIUU","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_16","alias_value":"PPODT7OEPIUU7JHW","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_8","alias_value":"PPODT7OE","created_at":"2026-05-18T12:33:24Z"}],"graph_snapshots":[{"event_id":"sha256:dda6a02a02305500e105cc1dc84a2e893d2a2d78b2cc79d6eedfba9f62259f08","target":"graph","created_at":"2026-05-17T23:40:54Z","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"},"paper":{"abstract_excerpt":"Local differential privacy (LDP) has been deemed as the de facto measure for privacy-preserving distributed data collection and analysis. Recently, researchers have extended LDP to the basic data type in NoSQL systems: the key-value data, and show its feasibilities in mean estimation and frequency estimation. In this paper, we develop a set of new perturbation mechanisms for key-value data collection and analysis under the strong model of local differential privacy. Since many modern machine learning tasks rely on the availability of conditional probability or the marginal statistics, we then ","authors_text":"Jun Zhao, Lin Sun, Shuo Feng, Tao Bai, Teng Wang, Xiaojun Ye","cross_cats":["cs.DB"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-07-11T06:34:02Z","title":"Conditional Analysis for Key-Value Data with Local Differential Privacy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.05014","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:ce1be0a8fc2d37b6b30db3d5aded4dca646f19b3ad2b5b44aca0c0ad98f56c8e","target":"record","created_at":"2026-05-17T23:40:54Z","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":"59ae6c8c93e39599f3c662c8ad3b7a9128ca5a5ec5d1b5aa8cf1ec0b6aded0a9","cross_cats_sorted":["cs.DB"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-07-11T06:34:02Z","title_canon_sha256":"cfed46a73ad38a082870453471eb8ab1a85ee74bd881b7646f97a2107fe90c7d"},"schema_version":"1.0","source":{"id":"1907.05014","kind":"arxiv","version":1}},"canonical_sha256":"7bdc39fdc47a294fa4f6f8f2957d558c8ad44a2d6149a4d6a8300165790585b5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7bdc39fdc47a294fa4f6f8f2957d558c8ad44a2d6149a4d6a8300165790585b5","first_computed_at":"2026-05-17T23:40:54.143382Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:40:54.143382Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GCiIp+NxE5V24hXqhkNftt1X2VyS+sNJFA/taWUeA+PxInViZBtGAT3MW3JCA1Z1zgPk/b3z+rMku6gs0QVUAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:40:54.144196Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.05014","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ce1be0a8fc2d37b6b30db3d5aded4dca646f19b3ad2b5b44aca0c0ad98f56c8e","sha256:dda6a02a02305500e105cc1dc84a2e893d2a2d78b2cc79d6eedfba9f62259f08"],"state_sha256":"b0d1209069605c69e6b1a7cae308ba437c5422638773923da0dd98c2ad7f2da5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ECHT7QS1eHyltgkEkCYgEeo9GFO9gpWM1Qz8HC8KJ7rfsHB8diCQIxUWU8KY4P/Y7YZaY9P4fL1zwuASc5AfAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T01:45:06.790157Z","bundle_sha256":"3e03c1f31d0febcadec479914a6baa9ba4b1e5b2baa1201c560813df0a49316f"}}