{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:ITTKPGBSBJPZGITGLIJPZPMNXH","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":"96df556d2325174c744cc9567e312ac903382a399df7c10bead1d5aecbbdd1f2","cross_cats_sorted":["cs.AI","cs.DB","cs.DS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2018-08-06T14:54:42Z","title_canon_sha256":"e2820d43eff594df98ef5ab72d3ac70c25d2b0f6dbc732c93ecca3d7ca074844"},"schema_version":"1.0","source":{"id":"1808.01949","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.01949","created_at":"2026-07-05T00:55:43Z"},{"alias_kind":"arxiv_version","alias_value":"1808.01949v2","created_at":"2026-07-05T00:55:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.01949","created_at":"2026-07-05T00:55:43Z"},{"alias_kind":"pith_short_12","alias_value":"ITTKPGBSBJPZ","created_at":"2026-07-05T00:55:43Z"},{"alias_kind":"pith_short_16","alias_value":"ITTKPGBSBJPZGITG","created_at":"2026-07-05T00:55:43Z"},{"alias_kind":"pith_short_8","alias_value":"ITTKPGBS","created_at":"2026-07-05T00:55:43Z"}],"graph_snapshots":[{"event_id":"sha256:c99be10c6240af25c9ec887f892fbbf79d2fd2ace13f9afe5e366f34902ee4d7","target":"graph","created_at":"2026-07-05T00:55:43Z","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/1808.01949/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Many applications of machine learning and optimization operate on data streams. While these datasets are fundamental to fuel decision-making algorithms, often they contain sensitive information about individuals and their usage poses significant privacy risks. Motivated by an application in energy systems, this paper presents OPTSTREAM, a novel algorithm for releasing differentially private data streams under the w-event model of privacy. OPTSTREAM is a 4-step procedure consisting of sampling, perturbation, reconstruction, and post-processing modules. First, the sampling module selects a small","authors_text":"Ferdinando Fioretto, Pascal Van Hentenryck","cross_cats":["cs.AI","cs.DB","cs.DS"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2018-08-06T14:54:42Z","title":"OptStream: Releasing Time Series Privately"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.01949","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:d8f70ffd77475c5479a2e2952e9c692a8f818bf7a337205aa4ba5705db352ffa","target":"record","created_at":"2026-07-05T00:55:43Z","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":"96df556d2325174c744cc9567e312ac903382a399df7c10bead1d5aecbbdd1f2","cross_cats_sorted":["cs.AI","cs.DB","cs.DS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2018-08-06T14:54:42Z","title_canon_sha256":"e2820d43eff594df98ef5ab72d3ac70c25d2b0f6dbc732c93ecca3d7ca074844"},"schema_version":"1.0","source":{"id":"1808.01949","kind":"arxiv","version":2}},"canonical_sha256":"44e6a798320a5f9322665a12fcbd8db9d80ba094f762dea1b32a700eaf683994","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"44e6a798320a5f9322665a12fcbd8db9d80ba094f762dea1b32a700eaf683994","first_computed_at":"2026-07-05T00:55:43.791066Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:55:43.791066Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gLIbt4lpKH7A6Y55RjFWbwAkaUsiKHWK64it4stjZjczxwNjfrCnVfC+QGHv7vX7q3xdCX8VYQGWWIXSMerOAg==","signature_status":"signed_v1","signed_at":"2026-07-05T00:55:43.791544Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.01949","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d8f70ffd77475c5479a2e2952e9c692a8f818bf7a337205aa4ba5705db352ffa","sha256:c99be10c6240af25c9ec887f892fbbf79d2fd2ace13f9afe5e366f34902ee4d7"],"state_sha256":"fb5d0ea82d30fc2cb05c7822eaefd66d17de9375a9bd5a6c54712eb8ee85b696"}