{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:CNGIBLLXM64JOU7FDR2556JOWX","short_pith_number":"pith:CNGIBLLX","canonical_record":{"source":{"id":"1711.06369","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2017-11-17T01:42:09Z","cross_cats_sorted":[],"title_canon_sha256":"44ff69eab340ceea4fe2de35191bd96392e063ba3964b1e085f644ece50e2ea8","abstract_canon_sha256":"752a82db89314260cadfce6c8ff9fdb420c3e72fde2dad5c1d45c6c1f21054b5"},"schema_version":"1.0"},"canonical_sha256":"134c80ad7767b89753e51c75def92eb5c4770361e4619249b3cd8d927da744ae","source":{"kind":"arxiv","id":"1711.06369","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.06369","created_at":"2026-05-18T00:04:30Z"},{"alias_kind":"arxiv_version","alias_value":"1711.06369v2","created_at":"2026-05-18T00:04:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.06369","created_at":"2026-05-18T00:04:30Z"},{"alias_kind":"pith_short_12","alias_value":"CNGIBLLXM64J","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"CNGIBLLXM64JOU7F","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"CNGIBLLX","created_at":"2026-05-18T12:31:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:CNGIBLLXM64JOU7FDR2556JOWX","target":"record","payload":{"canonical_record":{"source":{"id":"1711.06369","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2017-11-17T01:42:09Z","cross_cats_sorted":[],"title_canon_sha256":"44ff69eab340ceea4fe2de35191bd96392e063ba3964b1e085f644ece50e2ea8","abstract_canon_sha256":"752a82db89314260cadfce6c8ff9fdb420c3e72fde2dad5c1d45c6c1f21054b5"},"schema_version":"1.0"},"canonical_sha256":"134c80ad7767b89753e51c75def92eb5c4770361e4619249b3cd8d927da744ae","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:04:30.525726Z","signature_b64":"ClRHUWcq2FkeNEZmwgJGtfl4cmmvmWUJBUwNqVncZ+L/T0MVRrctq6/mcCEXBgOtJq5rXGoTAZYPg3FTszWWBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"134c80ad7767b89753e51c75def92eb5c4770361e4619249b3cd8d927da744ae","last_reissued_at":"2026-05-18T00:04:30.525329Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:04:30.525329Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1711.06369","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:04:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y8xZ7JgNGLgcVKKxBspdDEI/sP6WsN0slOjHf1y05Wgxo2/DJErNv9J7TDLg0pFstvsP1xdKxKToVpI/hY45AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T10:14:33.626534Z"},"content_sha256":"4a173d1dc8fe7531758be8b2c40de749e5e0ca99eb86726bca37b4fe3042a66d","schema_version":"1.0","event_id":"sha256:4a173d1dc8fe7531758be8b2c40de749e5e0ca99eb86726bca37b4fe3042a66d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:CNGIBLLXM64JOU7FDR2556JOWX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Prediction error identification of linear dynamic networks with rank-reduced noise","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.SY","authors_text":"Arne G. Dankers, Harm H.M. Weerts, Paul M.J. Van den Hof","submitted_at":"2017-11-17T01:42:09Z","abstract_excerpt":"Dynamic networks are interconnected dynamic systems with measured node signals and dynamic modules reflecting the links between the nodes. We address the problem of \\red{identifying a dynamic network with known topology, on the basis of measured signals}, for the situation of additive process noise on the node signals that is spatially correlated and that is allowed to have a spectral density that is singular. A prediction error approach is followed in which all node signals in the network are jointly predicted. The resulting joint-direct identification method, generalizes the classical direct"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.06369","kind":"arxiv","version":2},"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":"2026-05-18T00:04:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GpKVAMezviElh05UDRkhPv2w217hJ1DSbsD5E4hUPoYrgGbb2GslYu+A5BmWLkdyUx6Lu7EqfSSoD/V9ictIBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T10:14:33.626868Z"},"content_sha256":"433e971c846aa52ab422e5a849a77db8057a5f6c1ccac55cfcfea43616ade846","schema_version":"1.0","event_id":"sha256:433e971c846aa52ab422e5a849a77db8057a5f6c1ccac55cfcfea43616ade846"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CNGIBLLXM64JOU7FDR2556JOWX/bundle.json","state_url":"https://pith.science/pith/CNGIBLLXM64JOU7FDR2556JOWX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CNGIBLLXM64JOU7FDR2556JOWX/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":"2026-06-07T10:14:33Z","links":{"resolver":"https://pith.science/pith/CNGIBLLXM64JOU7FDR2556JOWX","bundle":"https://pith.science/pith/CNGIBLLXM64JOU7FDR2556JOWX/bundle.json","state":"https://pith.science/pith/CNGIBLLXM64JOU7FDR2556JOWX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CNGIBLLXM64JOU7FDR2556JOWX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:CNGIBLLXM64JOU7FDR2556JOWX","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":"752a82db89314260cadfce6c8ff9fdb420c3e72fde2dad5c1d45c6c1f21054b5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2017-11-17T01:42:09Z","title_canon_sha256":"44ff69eab340ceea4fe2de35191bd96392e063ba3964b1e085f644ece50e2ea8"},"schema_version":"1.0","source":{"id":"1711.06369","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.06369","created_at":"2026-05-18T00:04:30Z"},{"alias_kind":"arxiv_version","alias_value":"1711.06369v2","created_at":"2026-05-18T00:04:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.06369","created_at":"2026-05-18T00:04:30Z"},{"alias_kind":"pith_short_12","alias_value":"CNGIBLLXM64J","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"CNGIBLLXM64JOU7F","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"CNGIBLLX","created_at":"2026-05-18T12:31:10Z"}],"graph_snapshots":[{"event_id":"sha256:433e971c846aa52ab422e5a849a77db8057a5f6c1ccac55cfcfea43616ade846","target":"graph","created_at":"2026-05-18T00:04:30Z","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":"Dynamic networks are interconnected dynamic systems with measured node signals and dynamic modules reflecting the links between the nodes. We address the problem of \\red{identifying a dynamic network with known topology, on the basis of measured signals}, for the situation of additive process noise on the node signals that is spatially correlated and that is allowed to have a spectral density that is singular. A prediction error approach is followed in which all node signals in the network are jointly predicted. The resulting joint-direct identification method, generalizes the classical direct","authors_text":"Arne G. Dankers, Harm H.M. Weerts, Paul M.J. Van den Hof","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2017-11-17T01:42:09Z","title":"Prediction error identification of linear dynamic networks with rank-reduced noise"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.06369","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":"sha256:4a173d1dc8fe7531758be8b2c40de749e5e0ca99eb86726bca37b4fe3042a66d","target":"record","created_at":"2026-05-18T00:04:30Z","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":"752a82db89314260cadfce6c8ff9fdb420c3e72fde2dad5c1d45c6c1f21054b5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2017-11-17T01:42:09Z","title_canon_sha256":"44ff69eab340ceea4fe2de35191bd96392e063ba3964b1e085f644ece50e2ea8"},"schema_version":"1.0","source":{"id":"1711.06369","kind":"arxiv","version":2}},"canonical_sha256":"134c80ad7767b89753e51c75def92eb5c4770361e4619249b3cd8d927da744ae","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"134c80ad7767b89753e51c75def92eb5c4770361e4619249b3cd8d927da744ae","first_computed_at":"2026-05-18T00:04:30.525329Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:04:30.525329Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ClRHUWcq2FkeNEZmwgJGtfl4cmmvmWUJBUwNqVncZ+L/T0MVRrctq6/mcCEXBgOtJq5rXGoTAZYPg3FTszWWBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:04:30.525726Z","signed_message":"canonical_sha256_bytes"},"source_id":"1711.06369","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4a173d1dc8fe7531758be8b2c40de749e5e0ca99eb86726bca37b4fe3042a66d","sha256:433e971c846aa52ab422e5a849a77db8057a5f6c1ccac55cfcfea43616ade846"],"state_sha256":"d24670c896f3cf1951926a23dc27a4202ca8b7845e7395b9a0a89fe2bb294b23"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+i2aC4IO1BmgUCDYp8Vaem1hJPyU+TVZ7FmUkGEkbp9lq+xsszR9FVphEca4g6J/RJsUevTorvema5IoliQUAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T10:14:33.628953Z","bundle_sha256":"385ef6fb08710cc792efe6437656957f30ee9e85b9b17918663d966a3c54c539"}}