{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:5SKU3LZXAUYY4YQLY3XPYAJHLP","short_pith_number":"pith:5SKU3LZX","canonical_record":{"source":{"id":"1902.06899","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-02-19T05:25:14Z","cross_cats_sorted":["cs.SY","eess.SP","eess.SY","math.OC"],"title_canon_sha256":"8c853c48297f2859a3737572b7b91b3049213fabd7e1c960d6e58b9fb6de5831","abstract_canon_sha256":"b3c677795427958df844b051823bfb2b37478e7866478764abf2046e12040e4d"},"schema_version":"1.0"},"canonical_sha256":"ec954daf3705318e620bc6eefc01275bd335cdbee5dfacb5f384f38d892004b3","source":{"kind":"arxiv","id":"1902.06899","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.06899","created_at":"2026-06-04T20:13:54Z"},{"alias_kind":"arxiv_version","alias_value":"1902.06899v2","created_at":"2026-06-04T20:13:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.06899","created_at":"2026-06-04T20:13:54Z"},{"alias_kind":"pith_short_12","alias_value":"5SKU3LZXAUYY","created_at":"2026-06-04T20:13:54Z"},{"alias_kind":"pith_short_16","alias_value":"5SKU3LZXAUYY4YQL","created_at":"2026-06-04T20:13:54Z"},{"alias_kind":"pith_short_8","alias_value":"5SKU3LZX","created_at":"2026-06-04T20:13:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:5SKU3LZXAUYY4YQLY3XPYAJHLP","target":"record","payload":{"canonical_record":{"source":{"id":"1902.06899","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-02-19T05:25:14Z","cross_cats_sorted":["cs.SY","eess.SP","eess.SY","math.OC"],"title_canon_sha256":"8c853c48297f2859a3737572b7b91b3049213fabd7e1c960d6e58b9fb6de5831","abstract_canon_sha256":"b3c677795427958df844b051823bfb2b37478e7866478764abf2046e12040e4d"},"schema_version":"1.0"},"canonical_sha256":"ec954daf3705318e620bc6eefc01275bd335cdbee5dfacb5f384f38d892004b3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-04T20:13:54.628813Z","signature_b64":"uZE4TbMCiYMBaOMjKSl5uGa+Pehuoobgkfd1gev51aVcJ/9SCEKppBdGlRQIBhvfAnFs3xJz1WvGU7wuOGdLAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ec954daf3705318e620bc6eefc01275bd335cdbee5dfacb5f384f38d892004b3","last_reissued_at":"2026-06-04T20:13:54.628324Z","signature_status":"signed_v1","first_computed_at":"2026-06-04T20:13:54.628324Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1902.06899","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":"2026-06-04T20:13:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PehZu6XdwwUDCPuco4tT9Pj0XYtBLnl2S0wEVAJr+8Q9ex0HefFhRjOAffCnXu0O8AAxzk/gvC0RFXiPB25IBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T05:22:49.579711Z"},"content_sha256":"a5d29bbc7c9b56c7d8cebd960e03484f79ed6d6deaaafbe779f5b4c285323e04","schema_version":"1.0","event_id":"sha256:a5d29bbc7c9b56c7d8cebd960e03484f79ed6d6deaaafbe779f5b4c285323e04"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:5SKU3LZXAUYY4YQLY3XPYAJHLP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Implementing Homomorphic Encryption Based Secure Feedback Control for Physical Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SY","eess.SP","eess.SY","math.OC"],"primary_cat":"cs.CR","authors_text":"Farhad Farokhi, Iman Shames, Julian Tran, Michael Cantoni","submitted_at":"2019-02-19T05:25:14Z","abstract_excerpt":"This paper is about an encryption based approach to the secure implementation of feedback controllers for physical systems. Specifically, Paillier's homomorphic encryption is used to digitally implement a class of linear dynamic controllers, which includes the commonplace static gain and PID type feedback control laws as special cases. The developed implementation is amenable to Field Programmable Gate Array (FPGA) realization. Experimental results, including timing analysis and resource usage characteristics for different encryption key lengths, are presented for the realization of an inverte"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.06899","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1902.06899/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-06-04T20:13:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mpFXqU1c3VP8ncMdA6HWLH9lYB9FFTdaqjaPQKGVzAxe4nsBxWIjD8lTozcC3HiaULvHVmzyMkDxlZlYaT/wDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T05:22:49.580096Z"},"content_sha256":"c5600457d6c69f692006f8bb426319475078c7f9db37078dce0d8ea517520fcd","schema_version":"1.0","event_id":"sha256:c5600457d6c69f692006f8bb426319475078c7f9db37078dce0d8ea517520fcd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5SKU3LZXAUYY4YQLY3XPYAJHLP/bundle.json","state_url":"https://pith.science/pith/5SKU3LZXAUYY4YQLY3XPYAJHLP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5SKU3LZXAUYY4YQLY3XPYAJHLP/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":"2026-06-24T05:22:49Z","links":{"resolver":"https://pith.science/pith/5SKU3LZXAUYY4YQLY3XPYAJHLP","bundle":"https://pith.science/pith/5SKU3LZXAUYY4YQLY3XPYAJHLP/bundle.json","state":"https://pith.science/pith/5SKU3LZXAUYY4YQLY3XPYAJHLP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5SKU3LZXAUYY4YQLY3XPYAJHLP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:5SKU3LZXAUYY4YQLY3XPYAJHLP","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":"b3c677795427958df844b051823bfb2b37478e7866478764abf2046e12040e4d","cross_cats_sorted":["cs.SY","eess.SP","eess.SY","math.OC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-02-19T05:25:14Z","title_canon_sha256":"8c853c48297f2859a3737572b7b91b3049213fabd7e1c960d6e58b9fb6de5831"},"schema_version":"1.0","source":{"id":"1902.06899","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.06899","created_at":"2026-06-04T20:13:54Z"},{"alias_kind":"arxiv_version","alias_value":"1902.06899v2","created_at":"2026-06-04T20:13:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.06899","created_at":"2026-06-04T20:13:54Z"},{"alias_kind":"pith_short_12","alias_value":"5SKU3LZXAUYY","created_at":"2026-06-04T20:13:54Z"},{"alias_kind":"pith_short_16","alias_value":"5SKU3LZXAUYY4YQL","created_at":"2026-06-04T20:13:54Z"},{"alias_kind":"pith_short_8","alias_value":"5SKU3LZX","created_at":"2026-06-04T20:13:54Z"}],"graph_snapshots":[{"event_id":"sha256:c5600457d6c69f692006f8bb426319475078c7f9db37078dce0d8ea517520fcd","target":"graph","created_at":"2026-06-04T20:13:54Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1902.06899/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This paper is about an encryption based approach to the secure implementation of feedback controllers for physical systems. Specifically, Paillier's homomorphic encryption is used to digitally implement a class of linear dynamic controllers, which includes the commonplace static gain and PID type feedback control laws as special cases. The developed implementation is amenable to Field Programmable Gate Array (FPGA) realization. Experimental results, including timing analysis and resource usage characteristics for different encryption key lengths, are presented for the realization of an inverte","authors_text":"Farhad Farokhi, Iman Shames, Julian Tran, Michael Cantoni","cross_cats":["cs.SY","eess.SP","eess.SY","math.OC"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-02-19T05:25:14Z","title":"Implementing Homomorphic Encryption Based Secure Feedback Control for Physical Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.06899","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:a5d29bbc7c9b56c7d8cebd960e03484f79ed6d6deaaafbe779f5b4c285323e04","target":"record","created_at":"2026-06-04T20:13:54Z","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":"b3c677795427958df844b051823bfb2b37478e7866478764abf2046e12040e4d","cross_cats_sorted":["cs.SY","eess.SP","eess.SY","math.OC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-02-19T05:25:14Z","title_canon_sha256":"8c853c48297f2859a3737572b7b91b3049213fabd7e1c960d6e58b9fb6de5831"},"schema_version":"1.0","source":{"id":"1902.06899","kind":"arxiv","version":2}},"canonical_sha256":"ec954daf3705318e620bc6eefc01275bd335cdbee5dfacb5f384f38d892004b3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ec954daf3705318e620bc6eefc01275bd335cdbee5dfacb5f384f38d892004b3","first_computed_at":"2026-06-04T20:13:54.628324Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-04T20:13:54.628324Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uZE4TbMCiYMBaOMjKSl5uGa+Pehuoobgkfd1gev51aVcJ/9SCEKppBdGlRQIBhvfAnFs3xJz1WvGU7wuOGdLAA==","signature_status":"signed_v1","signed_at":"2026-06-04T20:13:54.628813Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.06899","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a5d29bbc7c9b56c7d8cebd960e03484f79ed6d6deaaafbe779f5b4c285323e04","sha256:c5600457d6c69f692006f8bb426319475078c7f9db37078dce0d8ea517520fcd"],"state_sha256":"8b4790f0c75b3113ee6cb431ef0312fd5894b9c01a90722baa9f72f5e9596473"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cokSjixe6m0S323BYsSK0HuZikQEWpT8OxzUTAuPxtDmHXzU4eJna68QG7gayltPuT+sjuCDiFefHtCd9f+YDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-24T05:22:49.582117Z","bundle_sha256":"58dd5fc8ad31a8d260182ca821ccd73327d513edf7520179ac6352c78daaf11e"}}