{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:J2ZKGQP764OOVWDQKRMDW2XZMU","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":"452785a3390579e47e076153ef56e59f29e2c9a19e39cdce3365e6efee2a5c71","cross_cats_sorted":["math.DS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2013-09-10T16:00:42Z","title_canon_sha256":"955ee13ea2b5bce8acd67e9a16d8b262c9da2681e02388d396635073e2913e1c"},"schema_version":"1.0","source":{"id":"1309.2558","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.2558","created_at":"2026-05-18T00:59:03Z"},{"alias_kind":"arxiv_version","alias_value":"1309.2558v1","created_at":"2026-05-18T00:59:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.2558","created_at":"2026-05-18T00:59:03Z"},{"alias_kind":"pith_short_12","alias_value":"J2ZKGQP764OO","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"J2ZKGQP764OOVWDQ","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"J2ZKGQP7","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:ca3170a5a44e48dd3642cb47bb76ffe4ae87bd07e28dcb90997cbbd6ea5d0e38","target":"graph","created_at":"2026-05-18T00:59:03Z","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":"Differential passivity is a property that allows to check with a pointwise criterion that a system is incrementally passive, a property that is relevant to study interconnected systems in the context of regulation, synchronization, and estimation. The paper investigates how restrictive is the property, focusing on a class of open gradient systems encountered in the coenergy modeling framework of physical systems, in particular the Brayton-Moser formalism for nonlinear electrical circuits.","authors_text":"Arjan van der Schaft, Fulvio Forni, Rodolphe Sepulchre","cross_cats":["math.DS"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2013-09-10T16:00:42Z","title":"On differential passivity of physical systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.2558","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":"sha256:63a0e32e04b0eb9005dc3f966737cedf1d9903f4e95732a506ec41539bffe08e","target":"record","created_at":"2026-05-18T00:59:03Z","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":"452785a3390579e47e076153ef56e59f29e2c9a19e39cdce3365e6efee2a5c71","cross_cats_sorted":["math.DS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2013-09-10T16:00:42Z","title_canon_sha256":"955ee13ea2b5bce8acd67e9a16d8b262c9da2681e02388d396635073e2913e1c"},"schema_version":"1.0","source":{"id":"1309.2558","kind":"arxiv","version":1}},"canonical_sha256":"4eb2a341fff71cead87054583b6af9651c07342bd1b937136922333a9a613443","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4eb2a341fff71cead87054583b6af9651c07342bd1b937136922333a9a613443","first_computed_at":"2026-05-18T00:59:03.771109Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:59:03.771109Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uX7W486AauOSLKNZQJ4vGphdCoBYK9aqXwrqXTB7tOxuCGnWcY+8aLG1i8vOzq1aF+uJC37jBJROO6qi4MS/Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:59:03.771804Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.2558","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:63a0e32e04b0eb9005dc3f966737cedf1d9903f4e95732a506ec41539bffe08e","sha256:ca3170a5a44e48dd3642cb47bb76ffe4ae87bd07e28dcb90997cbbd6ea5d0e38"],"state_sha256":"cbf4e21643cb0f6aa1b3a3ea053d114797c0c61c969dccacf1f5b7cf72463de0"}