{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:62BQIDQNRQQGQBYB7RGBGMEJ3H","short_pith_number":"pith:62BQIDQN","canonical_record":{"source":{"id":"1411.7169","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2014-11-26T10:44:10Z","cross_cats_sorted":[],"title_canon_sha256":"d148e256402638e77ba80c0f52c886501c330b1e052b4033168a584e7d5b97ff","abstract_canon_sha256":"159fe6de403758aa8a482b30aba6f9b2b65e91a004933062007ef5b5e840cc9d"},"schema_version":"1.0"},"canonical_sha256":"f683040e0d8c20680701fc4c133089d9c0782f28d7772e89ee73a753ecd07b3c","source":{"kind":"arxiv","id":"1411.7169","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.7169","created_at":"2026-05-18T02:32:45Z"},{"alias_kind":"arxiv_version","alias_value":"1411.7169v1","created_at":"2026-05-18T02:32:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.7169","created_at":"2026-05-18T02:32:45Z"},{"alias_kind":"pith_short_12","alias_value":"62BQIDQNRQQG","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"62BQIDQNRQQGQBYB","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"62BQIDQN","created_at":"2026-05-18T12:28:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:62BQIDQNRQQGQBYB7RGBGMEJ3H","target":"record","payload":{"canonical_record":{"source":{"id":"1411.7169","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2014-11-26T10:44:10Z","cross_cats_sorted":[],"title_canon_sha256":"d148e256402638e77ba80c0f52c886501c330b1e052b4033168a584e7d5b97ff","abstract_canon_sha256":"159fe6de403758aa8a482b30aba6f9b2b65e91a004933062007ef5b5e840cc9d"},"schema_version":"1.0"},"canonical_sha256":"f683040e0d8c20680701fc4c133089d9c0782f28d7772e89ee73a753ecd07b3c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:32:45.110917Z","signature_b64":"XqlOH2xpjFz9uYTW+OS3Dx9Yg4iecHPF7g5AubByXLK0uLD6y6OBXkZ+FwMNckL4Tm3n2kfkC6PZxISsbnSLAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f683040e0d8c20680701fc4c133089d9c0782f28d7772e89ee73a753ecd07b3c","last_reissued_at":"2026-05-18T02:32:45.110431Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:32:45.110431Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1411.7169","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":"2026-05-18T02:32:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gar+TVaOQhGzt2pd735HR1hmf4dz93hRmEb1v4GyIJQ8d3s+8qs4BTU9a+EDxFIhh61WSEO06dvFraQ0a6xLCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T19:55:07.365046Z"},"content_sha256":"73102dfc70109e1547ec562f08a7f29afc6683287e3e20f0dfbe7ff8d7862ab3","schema_version":"1.0","event_id":"sha256:73102dfc70109e1547ec562f08a7f29afc6683287e3e20f0dfbe7ff8d7862ab3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:62BQIDQNRQQGQBYB7RGBGMEJ3H","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A model-free control strategy for an experimental greenhouse with an application to fault accommodation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.OC","authors_text":"Fr\\'ed\\'eric Lafont (LSIS), Jean-Fran\\c{c}ois Balmat (LSIS), Michel Fliess (LIX), Nathalie Pessel (LSIS)","submitted_at":"2014-11-26T10:44:10Z","abstract_excerpt":"Writing down mathematical models of agricultural greenhouses and regulating them via advanced controllers are challenging tasks since strong perturbations, like meteorological variations, have to be taken into account. This is why we are developing here a new model-free control approach and the corresponding intelligent controllers, where the need of a good model disappears. This setting, which has been introduced quite recently and is easy to implement, is already successful in many engineering domains. Tests on a concrete greenhouse and comparisons with Boolean controllers are reported. They"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.7169","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":"2026-05-18T02:32:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d7ASw0oQVNiVzVowfbRDCyD4vPPoF/gXtZQmJC92D30QP/tcp+E49JbzgkU6fMkYy7iQR5/52uSenaTUFrGkBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T19:55:07.365406Z"},"content_sha256":"5a8d43b6da44e50ecf8b980a8ce57d15d18aeaf2b5130670c65ea20cddeeb3dd","schema_version":"1.0","event_id":"sha256:5a8d43b6da44e50ecf8b980a8ce57d15d18aeaf2b5130670c65ea20cddeeb3dd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/62BQIDQNRQQGQBYB7RGBGMEJ3H/bundle.json","state_url":"https://pith.science/pith/62BQIDQNRQQGQBYB7RGBGMEJ3H/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/62BQIDQNRQQGQBYB7RGBGMEJ3H/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":"2026-06-01T19:55:07Z","links":{"resolver":"https://pith.science/pith/62BQIDQNRQQGQBYB7RGBGMEJ3H","bundle":"https://pith.science/pith/62BQIDQNRQQGQBYB7RGBGMEJ3H/bundle.json","state":"https://pith.science/pith/62BQIDQNRQQGQBYB7RGBGMEJ3H/state.json","well_known_bundle":"https://pith.science/.well-known/pith/62BQIDQNRQQGQBYB7RGBGMEJ3H/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:62BQIDQNRQQGQBYB7RGBGMEJ3H","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":"159fe6de403758aa8a482b30aba6f9b2b65e91a004933062007ef5b5e840cc9d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2014-11-26T10:44:10Z","title_canon_sha256":"d148e256402638e77ba80c0f52c886501c330b1e052b4033168a584e7d5b97ff"},"schema_version":"1.0","source":{"id":"1411.7169","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.7169","created_at":"2026-05-18T02:32:45Z"},{"alias_kind":"arxiv_version","alias_value":"1411.7169v1","created_at":"2026-05-18T02:32:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.7169","created_at":"2026-05-18T02:32:45Z"},{"alias_kind":"pith_short_12","alias_value":"62BQIDQNRQQG","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"62BQIDQNRQQGQBYB","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"62BQIDQN","created_at":"2026-05-18T12:28:16Z"}],"graph_snapshots":[{"event_id":"sha256:5a8d43b6da44e50ecf8b980a8ce57d15d18aeaf2b5130670c65ea20cddeeb3dd","target":"graph","created_at":"2026-05-18T02:32:45Z","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":"Writing down mathematical models of agricultural greenhouses and regulating them via advanced controllers are challenging tasks since strong perturbations, like meteorological variations, have to be taken into account. This is why we are developing here a new model-free control approach and the corresponding intelligent controllers, where the need of a good model disappears. This setting, which has been introduced quite recently and is easy to implement, is already successful in many engineering domains. Tests on a concrete greenhouse and comparisons with Boolean controllers are reported. They","authors_text":"Fr\\'ed\\'eric Lafont (LSIS), Jean-Fran\\c{c}ois Balmat (LSIS), Michel Fliess (LIX), Nathalie Pessel (LSIS)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2014-11-26T10:44:10Z","title":"A model-free control strategy for an experimental greenhouse with an application to fault accommodation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.7169","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":"sha256:73102dfc70109e1547ec562f08a7f29afc6683287e3e20f0dfbe7ff8d7862ab3","target":"record","created_at":"2026-05-18T02:32:45Z","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":"159fe6de403758aa8a482b30aba6f9b2b65e91a004933062007ef5b5e840cc9d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2014-11-26T10:44:10Z","title_canon_sha256":"d148e256402638e77ba80c0f52c886501c330b1e052b4033168a584e7d5b97ff"},"schema_version":"1.0","source":{"id":"1411.7169","kind":"arxiv","version":1}},"canonical_sha256":"f683040e0d8c20680701fc4c133089d9c0782f28d7772e89ee73a753ecd07b3c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f683040e0d8c20680701fc4c133089d9c0782f28d7772e89ee73a753ecd07b3c","first_computed_at":"2026-05-18T02:32:45.110431Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:32:45.110431Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XqlOH2xpjFz9uYTW+OS3Dx9Yg4iecHPF7g5AubByXLK0uLD6y6OBXkZ+FwMNckL4Tm3n2kfkC6PZxISsbnSLAg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:32:45.110917Z","signed_message":"canonical_sha256_bytes"},"source_id":"1411.7169","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:73102dfc70109e1547ec562f08a7f29afc6683287e3e20f0dfbe7ff8d7862ab3","sha256:5a8d43b6da44e50ecf8b980a8ce57d15d18aeaf2b5130670c65ea20cddeeb3dd"],"state_sha256":"8a325c789b98b750fa41654e3dbf7faead344b7b03d4d3fd5432eaf648b82ac2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HiYy9aMNAJi0JNzOiG2JDatyxfJQzkUTgKu01aWY/GJeAUJNHUgalBDf92d52/CSDGYxCBmcnwF6iwnBVnTjCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T19:55:07.367430Z","bundle_sha256":"fcb258f5e30739c57b772b4d8e26dd865514ce60136f01ad3463afcf76aca483"}}