{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:STYPKA7BBUUKI2HWHFLKTTKBPM","short_pith_number":"pith:STYPKA7B","canonical_record":{"source":{"id":"1610.07353","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2016-10-24T10:51:20Z","cross_cats_sorted":[],"title_canon_sha256":"4f80723929b55b0868a2f43b511f0ff0821d0ea104135c9c395511af979d575a","abstract_canon_sha256":"9fa91fc80921e48d3a0eb106568d1eefafb860ebf84ec05f8f57e4b2e3d5fa6d"},"schema_version":"1.0"},"canonical_sha256":"94f0f503e10d28a468f63956a9cd417b1e5e499a30f8dcf1214d1cc0c933575e","source":{"kind":"arxiv","id":"1610.07353","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.07353","created_at":"2026-05-18T01:01:30Z"},{"alias_kind":"arxiv_version","alias_value":"1610.07353v1","created_at":"2026-05-18T01:01:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.07353","created_at":"2026-05-18T01:01:30Z"},{"alias_kind":"pith_short_12","alias_value":"STYPKA7BBUUK","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_16","alias_value":"STYPKA7BBUUKI2HW","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_8","alias_value":"STYPKA7B","created_at":"2026-05-18T12:30:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:STYPKA7BBUUKI2HWHFLKTTKBPM","target":"record","payload":{"canonical_record":{"source":{"id":"1610.07353","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2016-10-24T10:51:20Z","cross_cats_sorted":[],"title_canon_sha256":"4f80723929b55b0868a2f43b511f0ff0821d0ea104135c9c395511af979d575a","abstract_canon_sha256":"9fa91fc80921e48d3a0eb106568d1eefafb860ebf84ec05f8f57e4b2e3d5fa6d"},"schema_version":"1.0"},"canonical_sha256":"94f0f503e10d28a468f63956a9cd417b1e5e499a30f8dcf1214d1cc0c933575e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:01:30.331934Z","signature_b64":"Siriuqd5AA9D117WKsVfF8mBTgsakJykF29p5OVlP4pt//kUaQVzAjqT/IQBr9JiOK7jt/mpSsUiTQU4EnvZBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"94f0f503e10d28a468f63956a9cd417b1e5e499a30f8dcf1214d1cc0c933575e","last_reissued_at":"2026-05-18T01:01:30.331509Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:01:30.331509Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.07353","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:01:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IF0Iy3RkYG68LYBKfDxu8jCN3K07tHGfFQ9knds2WKYZ3tMzoigVRmYDxKrjmRog/DcPZwXqCaxneAwGJk8ABw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-21T21:41:09.756218Z"},"content_sha256":"d9dbe25e48be237955403a1797f8f5015086af717fd0ac175d49ef4bf69d01f9","schema_version":"1.0","event_id":"sha256:d9dbe25e48be237955403a1797f8f5015086af717fd0ac175d49ef4bf69d01f9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:STYPKA7BBUUKI2HWHFLKTTKBPM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Filter-based regularisation for impulse response modelling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.SY","authors_text":"Anna Marconato, Johan Schoukens, Maarten Schoukens","submitted_at":"2016-10-24T10:51:20Z","abstract_excerpt":"In the last years, the success of kernel-based regularisation techniques in solving impulse response modelling tasks has revived the interest on linear system identification. In this work, an alternative perspective on the same problem is introduced. Instead of relying on a Bayesian framework to include assumptions about the system in the definition of the covariance matrix of the parameters, here the prior knowledge is injected at the cost function level. The key idea is to define the regularisation matrix as a filtering operation on the parameters, which allows for a more intuitive formulati"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.07353","kind":"arxiv","version":1},"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":"2026-05-18T01:01:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bYi/r40XiqvFe1FeTVpc2SotS1p6mLI547F6h/taQvBAGzSMEgmPiTcfP0XopB+Nv7l1cvFabsChFcS1IPu/Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-21T21:41:09.756588Z"},"content_sha256":"fdcbbe762facbb3ed35b9901109240f4bd4480b5a476fef4e5ce22aa7a0f3e02","schema_version":"1.0","event_id":"sha256:fdcbbe762facbb3ed35b9901109240f4bd4480b5a476fef4e5ce22aa7a0f3e02"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/STYPKA7BBUUKI2HWHFLKTTKBPM/bundle.json","state_url":"https://pith.science/pith/STYPKA7BBUUKI2HWHFLKTTKBPM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/STYPKA7BBUUKI2HWHFLKTTKBPM/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":"2026-06-21T21:41:09Z","links":{"resolver":"https://pith.science/pith/STYPKA7BBUUKI2HWHFLKTTKBPM","bundle":"https://pith.science/pith/STYPKA7BBUUKI2HWHFLKTTKBPM/bundle.json","state":"https://pith.science/pith/STYPKA7BBUUKI2HWHFLKTTKBPM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/STYPKA7BBUUKI2HWHFLKTTKBPM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:STYPKA7BBUUKI2HWHFLKTTKBPM","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":"9fa91fc80921e48d3a0eb106568d1eefafb860ebf84ec05f8f57e4b2e3d5fa6d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2016-10-24T10:51:20Z","title_canon_sha256":"4f80723929b55b0868a2f43b511f0ff0821d0ea104135c9c395511af979d575a"},"schema_version":"1.0","source":{"id":"1610.07353","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.07353","created_at":"2026-05-18T01:01:30Z"},{"alias_kind":"arxiv_version","alias_value":"1610.07353v1","created_at":"2026-05-18T01:01:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.07353","created_at":"2026-05-18T01:01:30Z"},{"alias_kind":"pith_short_12","alias_value":"STYPKA7BBUUK","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_16","alias_value":"STYPKA7BBUUKI2HW","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_8","alias_value":"STYPKA7B","created_at":"2026-05-18T12:30:44Z"}],"graph_snapshots":[{"event_id":"sha256:fdcbbe762facbb3ed35b9901109240f4bd4480b5a476fef4e5ce22aa7a0f3e02","target":"graph","created_at":"2026-05-18T01:01:30Z","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":"In the last years, the success of kernel-based regularisation techniques in solving impulse response modelling tasks has revived the interest on linear system identification. In this work, an alternative perspective on the same problem is introduced. Instead of relying on a Bayesian framework to include assumptions about the system in the definition of the covariance matrix of the parameters, here the prior knowledge is injected at the cost function level. The key idea is to define the regularisation matrix as a filtering operation on the parameters, which allows for a more intuitive formulati","authors_text":"Anna Marconato, Johan Schoukens, Maarten Schoukens","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2016-10-24T10:51:20Z","title":"Filter-based regularisation for impulse response modelling"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.07353","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:d9dbe25e48be237955403a1797f8f5015086af717fd0ac175d49ef4bf69d01f9","target":"record","created_at":"2026-05-18T01:01:30Z","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":"9fa91fc80921e48d3a0eb106568d1eefafb860ebf84ec05f8f57e4b2e3d5fa6d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2016-10-24T10:51:20Z","title_canon_sha256":"4f80723929b55b0868a2f43b511f0ff0821d0ea104135c9c395511af979d575a"},"schema_version":"1.0","source":{"id":"1610.07353","kind":"arxiv","version":1}},"canonical_sha256":"94f0f503e10d28a468f63956a9cd417b1e5e499a30f8dcf1214d1cc0c933575e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"94f0f503e10d28a468f63956a9cd417b1e5e499a30f8dcf1214d1cc0c933575e","first_computed_at":"2026-05-18T01:01:30.331509Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:01:30.331509Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Siriuqd5AA9D117WKsVfF8mBTgsakJykF29p5OVlP4pt//kUaQVzAjqT/IQBr9JiOK7jt/mpSsUiTQU4EnvZBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:01:30.331934Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.07353","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d9dbe25e48be237955403a1797f8f5015086af717fd0ac175d49ef4bf69d01f9","sha256:fdcbbe762facbb3ed35b9901109240f4bd4480b5a476fef4e5ce22aa7a0f3e02"],"state_sha256":"358a22367dd3ccdb468e914640066aea03fb2f726fc8b42838a5d34d43cd7779"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cT32Y44xFhAjlmDPSxn3J2a3pqYrAwg3ZnucwXL7IhCySN7+fszA/FTctmzEGljn7BxQ1iekWIoVh0dbTFEvDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-21T21:41:09.758635Z","bundle_sha256":"0d620459f85e90c5cbfb760549609c97778ec31ea9445e7b86a6c73c9de104df"}}