{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:ADXP3Y3WGILU76ISWHWH7D7LND","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":"9b276eb1898051fc78c0f06247a1ec075ca23f1ccf69c960c0f2e3c63aeafc15","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2018-09-15T03:45:17Z","title_canon_sha256":"bd09402626574b2ced627d0c1ff1e65b619d3a2618a28eb5faf67de5e77bcf48"},"schema_version":"1.0","source":{"id":"1809.05644","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.05644","created_at":"2026-05-18T00:05:40Z"},{"alias_kind":"arxiv_version","alias_value":"1809.05644v1","created_at":"2026-05-18T00:05:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.05644","created_at":"2026-05-18T00:05:40Z"},{"alias_kind":"pith_short_12","alias_value":"ADXP3Y3WGILU","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"ADXP3Y3WGILU76IS","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"ADXP3Y3W","created_at":"2026-05-18T12:32:13Z"}],"graph_snapshots":[{"event_id":"sha256:025032634e0860fb577b7f58e8c5265dd78388b0fc0f16b3c91b5e78dd889716","target":"graph","created_at":"2026-05-18T00:05:40Z","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":"This paper proposes a centralized and a distributed sub-optimal control strategy to maintain in safe regions the real-time transient frequencies of a given collection of buses, and simultaneously preserve asymptotic stability of the entire network. In a receding horizon fashion, the centralized control input is obtained by iteratively solving an open-loop optimization aiming to minimize the aggregate control effort over controllers regulated on individual buses with transient frequency and stability constraints. Due to the non-convexity of the optimization, we propose a convexification techniq","authors_text":"Jorge Cortes, Yifu Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2018-09-15T03:45:17Z","title":"Transient frequency control with regional cooperation for power networks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.05644","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":"sha256:02ace21ecfaccd62e219ff0ac48e9e64f68cffbd9ff3026b1cba963ad2cf0982","target":"record","created_at":"2026-05-18T00:05:40Z","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":"9b276eb1898051fc78c0f06247a1ec075ca23f1ccf69c960c0f2e3c63aeafc15","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2018-09-15T03:45:17Z","title_canon_sha256":"bd09402626574b2ced627d0c1ff1e65b619d3a2618a28eb5faf67de5e77bcf48"},"schema_version":"1.0","source":{"id":"1809.05644","kind":"arxiv","version":1}},"canonical_sha256":"00eefde37632174ff912b1ec7f8feb68fe7e38affe25ed06e4a2b610ce7d1a19","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"00eefde37632174ff912b1ec7f8feb68fe7e38affe25ed06e4a2b610ce7d1a19","first_computed_at":"2026-05-18T00:05:40.370798Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:05:40.370798Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ks7n1atr5y8kBIZaQDTKb0WGGZxMVo+gyxt71TzxFQHbW9G7qs6WfF4ZNc0uMzKXNUOQfVr81S7Jv8oCx6TpBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:05:40.371260Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.05644","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:02ace21ecfaccd62e219ff0ac48e9e64f68cffbd9ff3026b1cba963ad2cf0982","sha256:025032634e0860fb577b7f58e8c5265dd78388b0fc0f16b3c91b5e78dd889716"],"state_sha256":"8b2cb941217164994ac0301c7f7d01350502a7dfdb5f221a75dbb959add70c96"}