{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:CWFLRTANGMGCJF7TTRFYSXZAUP","short_pith_number":"pith:CWFLRTAN","canonical_record":{"source":{"id":"1710.10636","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2017-10-29T16:05:26Z","cross_cats_sorted":[],"title_canon_sha256":"59a9e9ee335b4841f8f55e04c52760f0ab5b21a166f5a3dd70b40d0e11679d66","abstract_canon_sha256":"e9a2e9e64e86b1f9ef60608df81a76c6e678c545d93929c009a49879e374c272"},"schema_version":"1.0"},"canonical_sha256":"158ab8cc0d330c2497f39c4b895f20a3c09a68094b276b52e3ad76656f5a239f","source":{"kind":"arxiv","id":"1710.10636","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.10636","created_at":"2026-05-18T00:31:46Z"},{"alias_kind":"arxiv_version","alias_value":"1710.10636v1","created_at":"2026-05-18T00:31:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.10636","created_at":"2026-05-18T00:31:46Z"},{"alias_kind":"pith_short_12","alias_value":"CWFLRTANGMGC","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"CWFLRTANGMGCJF7T","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"CWFLRTAN","created_at":"2026-05-18T12:31:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:CWFLRTANGMGCJF7TTRFYSXZAUP","target":"record","payload":{"canonical_record":{"source":{"id":"1710.10636","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2017-10-29T16:05:26Z","cross_cats_sorted":[],"title_canon_sha256":"59a9e9ee335b4841f8f55e04c52760f0ab5b21a166f5a3dd70b40d0e11679d66","abstract_canon_sha256":"e9a2e9e64e86b1f9ef60608df81a76c6e678c545d93929c009a49879e374c272"},"schema_version":"1.0"},"canonical_sha256":"158ab8cc0d330c2497f39c4b895f20a3c09a68094b276b52e3ad76656f5a239f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:31:46.895422Z","signature_b64":"UzhPFXXlVig4Uc52Tn9nZabUnms3GiLpxyId6jk/Iu3iXWrY2L3m1hpHDn+34lrXHd7LpUlDVkwV0buzrhkzAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"158ab8cc0d330c2497f39c4b895f20a3c09a68094b276b52e3ad76656f5a239f","last_reissued_at":"2026-05-18T00:31:46.894722Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:31:46.894722Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1710.10636","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":"2026-05-18T00:31:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jpNAiEEsMd/n2zCTCjpCyMdw7wePKBs4thnCR8x5D/euByqBWrnUsK4/mHdalBf+pQdcElYqytwtkQU0doiwBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T06:33:15.168650Z"},"content_sha256":"3ccf021f7db84948766fee36508f8624c69cde439b62dd559ec742c2945b481d","schema_version":"1.0","event_id":"sha256:3ccf021f7db84948766fee36508f8624c69cde439b62dd559ec742c2945b481d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:CWFLRTANGMGCJF7TTRFYSXZAUP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Design and Analysis of a Controller Using Quantitative Feedback Theory for a Vehicle Air Suspension System","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.SY","authors_text":"Ali Shafiekhani, Keivan Torabi, Seyed Mehdi Mirsadeghi","submitted_at":"2017-10-29T16:05:26Z","abstract_excerpt":"This paper presents the design of a robust controller for a vehicle air suspension system using Quantitative Feedback Theory (QFT). This study is primarily focused on control of linearized active air suspension system. For the purpose of simplicity, the dynamics of the air suspension system is modeled using a simple 2-DOF quarter car model. Uncertain dynamic system with different working condition has been considered for the vehicle air suspension system."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.10636","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":"2026-05-18T00:31:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hgT1rLv3hkSZMsOJ57lp66xIi6u1tDIkPsBkkJNqcP2Zi94DFwz3td10JE1QDBBNARjN2RQAaJcNwr0LdoopAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T06:33:15.169020Z"},"content_sha256":"34419e330f15ee07bccbe15de182ba8e189f44c31564f75364474d62fc988758","schema_version":"1.0","event_id":"sha256:34419e330f15ee07bccbe15de182ba8e189f44c31564f75364474d62fc988758"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CWFLRTANGMGCJF7TTRFYSXZAUP/bundle.json","state_url":"https://pith.science/pith/CWFLRTANGMGCJF7TTRFYSXZAUP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CWFLRTANGMGCJF7TTRFYSXZAUP/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":"2026-06-01T06:33:15Z","links":{"resolver":"https://pith.science/pith/CWFLRTANGMGCJF7TTRFYSXZAUP","bundle":"https://pith.science/pith/CWFLRTANGMGCJF7TTRFYSXZAUP/bundle.json","state":"https://pith.science/pith/CWFLRTANGMGCJF7TTRFYSXZAUP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CWFLRTANGMGCJF7TTRFYSXZAUP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:CWFLRTANGMGCJF7TTRFYSXZAUP","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":"e9a2e9e64e86b1f9ef60608df81a76c6e678c545d93929c009a49879e374c272","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2017-10-29T16:05:26Z","title_canon_sha256":"59a9e9ee335b4841f8f55e04c52760f0ab5b21a166f5a3dd70b40d0e11679d66"},"schema_version":"1.0","source":{"id":"1710.10636","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.10636","created_at":"2026-05-18T00:31:46Z"},{"alias_kind":"arxiv_version","alias_value":"1710.10636v1","created_at":"2026-05-18T00:31:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.10636","created_at":"2026-05-18T00:31:46Z"},{"alias_kind":"pith_short_12","alias_value":"CWFLRTANGMGC","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"CWFLRTANGMGCJF7T","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"CWFLRTAN","created_at":"2026-05-18T12:31:10Z"}],"graph_snapshots":[{"event_id":"sha256:34419e330f15ee07bccbe15de182ba8e189f44c31564f75364474d62fc988758","target":"graph","created_at":"2026-05-18T00:31:46Z","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":"This paper presents the design of a robust controller for a vehicle air suspension system using Quantitative Feedback Theory (QFT). This study is primarily focused on control of linearized active air suspension system. For the purpose of simplicity, the dynamics of the air suspension system is modeled using a simple 2-DOF quarter car model. Uncertain dynamic system with different working condition has been considered for the vehicle air suspension system.","authors_text":"Ali Shafiekhani, Keivan Torabi, Seyed Mehdi Mirsadeghi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2017-10-29T16:05:26Z","title":"Design and Analysis of a Controller Using Quantitative Feedback Theory for a Vehicle Air Suspension System"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.10636","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":"sha256:3ccf021f7db84948766fee36508f8624c69cde439b62dd559ec742c2945b481d","target":"record","created_at":"2026-05-18T00:31:46Z","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":"e9a2e9e64e86b1f9ef60608df81a76c6e678c545d93929c009a49879e374c272","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2017-10-29T16:05:26Z","title_canon_sha256":"59a9e9ee335b4841f8f55e04c52760f0ab5b21a166f5a3dd70b40d0e11679d66"},"schema_version":"1.0","source":{"id":"1710.10636","kind":"arxiv","version":1}},"canonical_sha256":"158ab8cc0d330c2497f39c4b895f20a3c09a68094b276b52e3ad76656f5a239f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"158ab8cc0d330c2497f39c4b895f20a3c09a68094b276b52e3ad76656f5a239f","first_computed_at":"2026-05-18T00:31:46.894722Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:31:46.894722Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UzhPFXXlVig4Uc52Tn9nZabUnms3GiLpxyId6jk/Iu3iXWrY2L3m1hpHDn+34lrXHd7LpUlDVkwV0buzrhkzAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:31:46.895422Z","signed_message":"canonical_sha256_bytes"},"source_id":"1710.10636","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3ccf021f7db84948766fee36508f8624c69cde439b62dd559ec742c2945b481d","sha256:34419e330f15ee07bccbe15de182ba8e189f44c31564f75364474d62fc988758"],"state_sha256":"4ef2ef6da0bfbdb996bae29225c9d14587a464c4d920ac6813da4fec2a913de5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tEGeJGsN8wl6aJqe95vPArur74Ofe8A6RtvMAuzyqnsbWnSe7mnpVtxMCfh41/ysjmxDnXxk5YSZlPfNoctlDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T06:33:15.171236Z","bundle_sha256":"986da88e4ca1a6a45cc2c409e8e942d2240f931c4c317159d5e9a219b59a5da0"}}