{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:OFYTAH2JOMJWRPDLUKEGJML37O","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":"76625b78326f1ad1a1acd475391de2c51f64222a91239e8e05a174dd725e23fc","cross_cats_sorted":["cs.SY"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2020-03-04T19:14:00Z","title_canon_sha256":"4ed419bf9ef1a0de58cb1ff67be7739e1ce58e1664cc23ef19cb37f61124d8b8"},"schema_version":"1.0","source":{"id":"2003.02295","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2003.02295","created_at":"2026-07-05T00:45:55Z"},{"alias_kind":"arxiv_version","alias_value":"2003.02295v1","created_at":"2026-07-05T00:45:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2003.02295","created_at":"2026-07-05T00:45:55Z"},{"alias_kind":"pith_short_12","alias_value":"OFYTAH2JOMJW","created_at":"2026-07-05T00:45:55Z"},{"alias_kind":"pith_short_16","alias_value":"OFYTAH2JOMJWRPDL","created_at":"2026-07-05T00:45:55Z"},{"alias_kind":"pith_short_8","alias_value":"OFYTAH2J","created_at":"2026-07-05T00:45:55Z"}],"graph_snapshots":[{"event_id":"sha256:3e4b28c8f48ab6e838d7bd2c4a51358aa9eeb70d9b6a6b0c14f579cde74b0950","target":"graph","created_at":"2026-07-05T00:45:55Z","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/2003.02295/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report on our experience with fixed-order H-infinity controller design using the HIFOO toolbox. We applied HIFOO to various benchmark fixed (or reduced) order H-infinity controller design problems in the literature, comparing the results with those published for other methods. The results show that HIFOO can be used as an effective alternative to existing methods for fixed-order HIFOO controller design.","authors_text":"Michael L. Overton, Suat Gumussoy","cross_cats":["cs.SY"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2020-03-04T19:14:00Z","title":"Fixed-Order H-infinity Controller Design via HIFOO, a Specialized Nonsmooth Optimization Package"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.02295","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":"sha256:384c65a14f81d884fb3f0603480ce75c06e4148b9c73a532d8c9e9c865b3e144","target":"record","created_at":"2026-07-05T00:45:55Z","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":"76625b78326f1ad1a1acd475391de2c51f64222a91239e8e05a174dd725e23fc","cross_cats_sorted":["cs.SY"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2020-03-04T19:14:00Z","title_canon_sha256":"4ed419bf9ef1a0de58cb1ff67be7739e1ce58e1664cc23ef19cb37f61124d8b8"},"schema_version":"1.0","source":{"id":"2003.02295","kind":"arxiv","version":1}},"canonical_sha256":"7171301f49731368bc6ba28864b17bfba46ccf4ab365a03b1d962b92ea61693b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7171301f49731368bc6ba28864b17bfba46ccf4ab365a03b1d962b92ea61693b","first_computed_at":"2026-07-05T00:45:55.046840Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:45:55.046840Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HgRjyD6vCmxCQf5DMuti0xXsJD5k5oE9FuHYzrlYofPTdzwZn2gcyAjokrzxSlaMVKGZSyZzNUSr973c2DQ+CA==","signature_status":"signed_v1","signed_at":"2026-07-05T00:45:55.047329Z","signed_message":"canonical_sha256_bytes"},"source_id":"2003.02295","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:384c65a14f81d884fb3f0603480ce75c06e4148b9c73a532d8c9e9c865b3e144","sha256:3e4b28c8f48ab6e838d7bd2c4a51358aa9eeb70d9b6a6b0c14f579cde74b0950"],"state_sha256":"57fb5bce0487f20203040181f9b79610733c04872573622cedc7d6038942b51d"}