{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:ULH43FA2QLOMJRM2BE2BHORFO3","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":"25f80ef992508f78c70fe571016b45de6f2c1007272f115abd14a734809682bd","cross_cats_sorted":["math.DS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2016-11-08T07:03:01Z","title_canon_sha256":"a9a556593fb47d02e1991279e815b46dae3f09efac5b380ab509fcfb9d36d741"},"schema_version":"1.0","source":{"id":"1611.04531","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.04531","created_at":"2026-05-18T00:13:38Z"},{"alias_kind":"arxiv_version","alias_value":"1611.04531v3","created_at":"2026-05-18T00:13:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.04531","created_at":"2026-05-18T00:13:38Z"},{"alias_kind":"pith_short_12","alias_value":"ULH43FA2QLOM","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_16","alias_value":"ULH43FA2QLOMJRM2","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_8","alias_value":"ULH43FA2","created_at":"2026-05-18T12:30:46Z"}],"graph_snapshots":[{"event_id":"sha256:2b3c577c4d9592aee052e7a54a37ae9014f898825bc10b2424974dd02f0207d9","target":"graph","created_at":"2026-05-18T00:13:38Z","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":"In this paper, we propose a retrofit control method for stable network systems. The proposed approach is a control method that, rather than an entire system model, requires a model of the subsystem of interest for controller design. To design the retrofit controller, we use a novel approach based on hierarchical state-space expansion that generates a higher-dimensional cascade realization of a given network system. The upstream dynamics of the cascade realization corresponds to an isolated model of the subsystem of interest, which is stabilized by a local controller. The downstream dynamics ca","authors_text":"Henrik Sandberg, Jun-ichi Imura, Karl Henrik Johansson, Takayuki Ishizaki, Tomonori Sadamoto","cross_cats":["math.DS"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2016-11-08T07:03:01Z","title":"Retrofit Control: Localization of Controller Design and Implementation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.04531","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:c879fe15eeff61b4ba6df8648427667337c60d817c72d0ae4eb53e8212cc71b9","target":"record","created_at":"2026-05-18T00:13:38Z","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":"25f80ef992508f78c70fe571016b45de6f2c1007272f115abd14a734809682bd","cross_cats_sorted":["math.DS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2016-11-08T07:03:01Z","title_canon_sha256":"a9a556593fb47d02e1991279e815b46dae3f09efac5b380ab509fcfb9d36d741"},"schema_version":"1.0","source":{"id":"1611.04531","kind":"arxiv","version":3}},"canonical_sha256":"a2cfcd941a82dcc4c59a093413ba2576e5ad1d42268ff403b5496e8adc06e365","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a2cfcd941a82dcc4c59a093413ba2576e5ad1d42268ff403b5496e8adc06e365","first_computed_at":"2026-05-18T00:13:38.023628Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:13:38.023628Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"b+KsG8SHl/nE/PkGQUf1IJ81Jj26Eg38l4gjUz98RM72gh43fQEnwWJXiiR77ahMgX+rxz0ftZsCbiZB8O25Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:13:38.024267Z","signed_message":"canonical_sha256_bytes"},"source_id":"1611.04531","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c879fe15eeff61b4ba6df8648427667337c60d817c72d0ae4eb53e8212cc71b9","sha256:2b3c577c4d9592aee052e7a54a37ae9014f898825bc10b2424974dd02f0207d9"],"state_sha256":"8b82f16e4368caeee4d7a3f90d2875dd7e91f49b2831fbd24421da8c5855fa7a"}