{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:KND5N5BFTDF5JPGPRXN3G32LFX","short_pith_number":"pith:KND5N5BF","canonical_record":{"source":{"id":"1907.09973","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.SY","submitted_at":"2019-07-23T15:58:54Z","cross_cats_sorted":["cs.SY"],"title_canon_sha256":"03f5657a9c9961f496697572e6dbba011557affb088f2034b123fe3dafaa7a8b","abstract_canon_sha256":"5be3d6719938456546ca496b66b93afe9d09e3ead5fc2c5e99d9de3f699cd505"},"schema_version":"1.0"},"canonical_sha256":"5347d6f42598cbd4bccf8ddbb36f4b2de0c72c1473c3455690de1c79d8fbf19f","source":{"kind":"arxiv","id":"1907.09973","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.09973","created_at":"2026-05-17T23:39:49Z"},{"alias_kind":"arxiv_version","alias_value":"1907.09973v1","created_at":"2026-05-17T23:39:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.09973","created_at":"2026-05-17T23:39:49Z"},{"alias_kind":"pith_short_12","alias_value":"KND5N5BFTDF5","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"KND5N5BFTDF5JPGP","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"KND5N5BF","created_at":"2026-05-18T12:33:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:KND5N5BFTDF5JPGPRXN3G32LFX","target":"record","payload":{"canonical_record":{"source":{"id":"1907.09973","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.SY","submitted_at":"2019-07-23T15:58:54Z","cross_cats_sorted":["cs.SY"],"title_canon_sha256":"03f5657a9c9961f496697572e6dbba011557affb088f2034b123fe3dafaa7a8b","abstract_canon_sha256":"5be3d6719938456546ca496b66b93afe9d09e3ead5fc2c5e99d9de3f699cd505"},"schema_version":"1.0"},"canonical_sha256":"5347d6f42598cbd4bccf8ddbb36f4b2de0c72c1473c3455690de1c79d8fbf19f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:39:49.555002Z","signature_b64":"3F/U2Rq1Tt9r/CtK2NvO2P3hWontTw8ZO22mDjweOjsR49IdlhzeUaNFWGmA5RI5zPVVGBJP0dTXrEF/ZnPbAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5347d6f42598cbd4bccf8ddbb36f4b2de0c72c1473c3455690de1c79d8fbf19f","last_reissued_at":"2026-05-17T23:39:49.554467Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:39:49.554467Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.09973","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":"2026-05-17T23:39:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K4VDy+okugsYVkYmDpp4Ak9Dkjna914og3PIE02FshNFH622kbsrDKxosF2+R+ZYIbndssEkKmZ8qUbZSyBYDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T15:11:47.665886Z"},"content_sha256":"644a7887c3ccea8cf87298efaca2c25c5079978b38ad42b5d552ab4fda4304c9","schema_version":"1.0","event_id":"sha256:644a7887c3ccea8cf87298efaca2c25c5079978b38ad42b5d552ab4fda4304c9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:KND5N5BFTDF5JPGPRXN3G32LFX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Voltage control of DC networks: robustness for unknown ZIP-loads","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.SY"],"primary_cat":"eess.SY","authors_text":"Jacquelien M. A. Scherpen, Krishna Chaitanya Kosaraju, Michele Cucuzzella","submitted_at":"2019-07-23T15:58:54Z","abstract_excerpt":"In this paper we propose a new passivity-based control technique for DC power networks comprising the so-called ZIP-loads, i.e., nonlinear loads with the parallel combination of unknown constant impedance (Z), current (I) and power (P) components. More precisely, we propose a novel passifying input and a storage function based on the so-called mixed potential function introduced by Brayton and Moser, leading to a novel passivity property with output port-variable equal to the first time derivative of the voltage. Differently from the existing results in the literature, where restrictive (suffi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.09973","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":"2026-05-17T23:39:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M97n2bFk26pD/IVdQd35ds4v2HPzJOq5wdQNcwCuz958etczfWLq43Kk+HMDM25nEBerp6ZA3uLF7ICZthr1Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T15:11:47.666584Z"},"content_sha256":"3ca41db1323923a612e2bd89ba2837b7217d500c19a81934c4f372ab0d9ba31d","schema_version":"1.0","event_id":"sha256:3ca41db1323923a612e2bd89ba2837b7217d500c19a81934c4f372ab0d9ba31d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KND5N5BFTDF5JPGPRXN3G32LFX/bundle.json","state_url":"https://pith.science/pith/KND5N5BFTDF5JPGPRXN3G32LFX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KND5N5BFTDF5JPGPRXN3G32LFX/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":"2026-05-29T15:11:47Z","links":{"resolver":"https://pith.science/pith/KND5N5BFTDF5JPGPRXN3G32LFX","bundle":"https://pith.science/pith/KND5N5BFTDF5JPGPRXN3G32LFX/bundle.json","state":"https://pith.science/pith/KND5N5BFTDF5JPGPRXN3G32LFX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KND5N5BFTDF5JPGPRXN3G32LFX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:KND5N5BFTDF5JPGPRXN3G32LFX","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":"5be3d6719938456546ca496b66b93afe9d09e3ead5fc2c5e99d9de3f699cd505","cross_cats_sorted":["cs.SY"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.SY","submitted_at":"2019-07-23T15:58:54Z","title_canon_sha256":"03f5657a9c9961f496697572e6dbba011557affb088f2034b123fe3dafaa7a8b"},"schema_version":"1.0","source":{"id":"1907.09973","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.09973","created_at":"2026-05-17T23:39:49Z"},{"alias_kind":"arxiv_version","alias_value":"1907.09973v1","created_at":"2026-05-17T23:39:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.09973","created_at":"2026-05-17T23:39:49Z"},{"alias_kind":"pith_short_12","alias_value":"KND5N5BFTDF5","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"KND5N5BFTDF5JPGP","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"KND5N5BF","created_at":"2026-05-18T12:33:21Z"}],"graph_snapshots":[{"event_id":"sha256:3ca41db1323923a612e2bd89ba2837b7217d500c19a81934c4f372ab0d9ba31d","target":"graph","created_at":"2026-05-17T23:39:49Z","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 new passivity-based control technique for DC power networks comprising the so-called ZIP-loads, i.e., nonlinear loads with the parallel combination of unknown constant impedance (Z), current (I) and power (P) components. More precisely, we propose a novel passifying input and a storage function based on the so-called mixed potential function introduced by Brayton and Moser, leading to a novel passivity property with output port-variable equal to the first time derivative of the voltage. Differently from the existing results in the literature, where restrictive (suffi","authors_text":"Jacquelien M. A. Scherpen, Krishna Chaitanya Kosaraju, Michele Cucuzzella","cross_cats":["cs.SY"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.SY","submitted_at":"2019-07-23T15:58:54Z","title":"Voltage control of DC networks: robustness for unknown ZIP-loads"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.09973","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":"sha256:644a7887c3ccea8cf87298efaca2c25c5079978b38ad42b5d552ab4fda4304c9","target":"record","created_at":"2026-05-17T23:39:49Z","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":"5be3d6719938456546ca496b66b93afe9d09e3ead5fc2c5e99d9de3f699cd505","cross_cats_sorted":["cs.SY"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.SY","submitted_at":"2019-07-23T15:58:54Z","title_canon_sha256":"03f5657a9c9961f496697572e6dbba011557affb088f2034b123fe3dafaa7a8b"},"schema_version":"1.0","source":{"id":"1907.09973","kind":"arxiv","version":1}},"canonical_sha256":"5347d6f42598cbd4bccf8ddbb36f4b2de0c72c1473c3455690de1c79d8fbf19f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5347d6f42598cbd4bccf8ddbb36f4b2de0c72c1473c3455690de1c79d8fbf19f","first_computed_at":"2026-05-17T23:39:49.554467Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:39:49.554467Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3F/U2Rq1Tt9r/CtK2NvO2P3hWontTw8ZO22mDjweOjsR49IdlhzeUaNFWGmA5RI5zPVVGBJP0dTXrEF/ZnPbAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:39:49.555002Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.09973","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:644a7887c3ccea8cf87298efaca2c25c5079978b38ad42b5d552ab4fda4304c9","sha256:3ca41db1323923a612e2bd89ba2837b7217d500c19a81934c4f372ab0d9ba31d"],"state_sha256":"8c2a3b902e7572313442598a9cbd18b15fffe793f15c466bce0dba27ae182e9f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pbd3kBQTdD7rN7lrKw5OdGZlaSpxHkRUkiY2uHmrFs+CuIeZXHskbo/W7oC1o6g0o6MOe2NTCz8eTL8cGFX3DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T15:11:47.670389Z","bundle_sha256":"2d95ecb8dd894eb45e91658928ce8cb47530f7ef2295b4b8175eda3d478e5b5f"}}