{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:JOQHAD57KOHTXZRTSW6VHM57QC","short_pith_number":"pith:JOQHAD57","canonical_record":{"source":{"id":"2301.02784","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2023-01-07T05:40:34Z","cross_cats_sorted":["cs.SY"],"title_canon_sha256":"f432bdc2d57da456c6c6bfe4938eeabb618a4b99a7bece2f4324f94174e15566","abstract_canon_sha256":"31aea20c039eb1a6f51f507f1632d417ee7f928bfd3b2accee3dcfd53a04d099"},"schema_version":"1.0"},"canonical_sha256":"4ba0700fbf538f3be63395bd53b3bf808a1bd62b7b7d6efb1f67fc3a22956ac3","source":{"kind":"arxiv","id":"2301.02784","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2301.02784","created_at":"2026-07-05T05:31:21Z"},{"alias_kind":"arxiv_version","alias_value":"2301.02784v1","created_at":"2026-07-05T05:31:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2301.02784","created_at":"2026-07-05T05:31:21Z"},{"alias_kind":"pith_short_12","alias_value":"JOQHAD57KOHT","created_at":"2026-07-05T05:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"JOQHAD57KOHTXZRT","created_at":"2026-07-05T05:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"JOQHAD57","created_at":"2026-07-05T05:31:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:JOQHAD57KOHTXZRTSW6VHM57QC","target":"record","payload":{"canonical_record":{"source":{"id":"2301.02784","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2023-01-07T05:40:34Z","cross_cats_sorted":["cs.SY"],"title_canon_sha256":"f432bdc2d57da456c6c6bfe4938eeabb618a4b99a7bece2f4324f94174e15566","abstract_canon_sha256":"31aea20c039eb1a6f51f507f1632d417ee7f928bfd3b2accee3dcfd53a04d099"},"schema_version":"1.0"},"canonical_sha256":"4ba0700fbf538f3be63395bd53b3bf808a1bd62b7b7d6efb1f67fc3a22956ac3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:31:21.811482Z","signature_b64":"SRd2jStDJt6OBWm22NVuNefFhawhG0WGs6CCz5LIlZfTl2/RSfwcMsl4RcaZQPLLroQPpgvGzZrwAB2xNNQICw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4ba0700fbf538f3be63395bd53b3bf808a1bd62b7b7d6efb1f67fc3a22956ac3","last_reissued_at":"2026-07-05T05:31:21.811078Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:31:21.811078Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2301.02784","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":"2026-07-05T05:31:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9gk9G6Pd9aH1jg/TbQ1Hu5VJeBUfVF7peKjQ/ysnVRD+7sHLP4KNDQiPMDfES98VEz7QtydMdRfMmrjJZTYZCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T12:21:50.637968Z"},"content_sha256":"c32f6d2c3877a73412d5ff2914b5f6aa44140bf64e134418e228803c81d6f1c2","schema_version":"1.0","event_id":"sha256:c32f6d2c3877a73412d5ff2914b5f6aa44140bf64e134418e228803c81d6f1c2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:JOQHAD57KOHTXZRTSW6VHM57QC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Active Fault Isolation for Discrete Event Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SY"],"primary_cat":"eess.SY","authors_text":"Feng Lin, Lin Cao, Shaolong Shu","submitted_at":"2023-01-07T05:40:34Z","abstract_excerpt":"In practice, we can not only disable some events, but also enforce the occurrence of some events prior to the occurrence of other events by external control. In this paper, we combine these two control mechanisms to synthesize a more powerful supervisor. Here our control goal is to design an isolation supervisor which ensures in the closed-loop system, faults are isolatable in the sense that after a fault occurs, we can determine which type the fault belongs to by observing the output of the closed-loop system. The isolation supervisor starts to work when the occurrence of faults is detected. "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.02784","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2301.02784/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":"2026-07-05T05:31:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b+1GxFAAaisPG2j7/P/SCIuDZhZiWQnTa56iXXrMkBxlYDtkyiGkZrIlRdkaKlTFzlrmrCwuQ8qYcd/SxAI1AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T12:21:50.638354Z"},"content_sha256":"2a0991edb85007c79b9a0f0cb04c324498fbfeb9f67ca6a180203c765f9979e9","schema_version":"1.0","event_id":"sha256:2a0991edb85007c79b9a0f0cb04c324498fbfeb9f67ca6a180203c765f9979e9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JOQHAD57KOHTXZRTSW6VHM57QC/bundle.json","state_url":"https://pith.science/pith/JOQHAD57KOHTXZRTSW6VHM57QC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JOQHAD57KOHTXZRTSW6VHM57QC/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":"2026-07-07T12:21:50Z","links":{"resolver":"https://pith.science/pith/JOQHAD57KOHTXZRTSW6VHM57QC","bundle":"https://pith.science/pith/JOQHAD57KOHTXZRTSW6VHM57QC/bundle.json","state":"https://pith.science/pith/JOQHAD57KOHTXZRTSW6VHM57QC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JOQHAD57KOHTXZRTSW6VHM57QC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:JOQHAD57KOHTXZRTSW6VHM57QC","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":"31aea20c039eb1a6f51f507f1632d417ee7f928bfd3b2accee3dcfd53a04d099","cross_cats_sorted":["cs.SY"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2023-01-07T05:40:34Z","title_canon_sha256":"f432bdc2d57da456c6c6bfe4938eeabb618a4b99a7bece2f4324f94174e15566"},"schema_version":"1.0","source":{"id":"2301.02784","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2301.02784","created_at":"2026-07-05T05:31:21Z"},{"alias_kind":"arxiv_version","alias_value":"2301.02784v1","created_at":"2026-07-05T05:31:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2301.02784","created_at":"2026-07-05T05:31:21Z"},{"alias_kind":"pith_short_12","alias_value":"JOQHAD57KOHT","created_at":"2026-07-05T05:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"JOQHAD57KOHTXZRT","created_at":"2026-07-05T05:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"JOQHAD57","created_at":"2026-07-05T05:31:21Z"}],"graph_snapshots":[{"event_id":"sha256:2a0991edb85007c79b9a0f0cb04c324498fbfeb9f67ca6a180203c765f9979e9","target":"graph","created_at":"2026-07-05T05:31:21Z","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/2301.02784/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In practice, we can not only disable some events, but also enforce the occurrence of some events prior to the occurrence of other events by external control. In this paper, we combine these two control mechanisms to synthesize a more powerful supervisor. Here our control goal is to design an isolation supervisor which ensures in the closed-loop system, faults are isolatable in the sense that after a fault occurs, we can determine which type the fault belongs to by observing the output of the closed-loop system. The isolation supervisor starts to work when the occurrence of faults is detected. ","authors_text":"Feng Lin, Lin Cao, Shaolong Shu","cross_cats":["cs.SY"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2023-01-07T05:40:34Z","title":"Active Fault Isolation for Discrete Event Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.02784","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:c32f6d2c3877a73412d5ff2914b5f6aa44140bf64e134418e228803c81d6f1c2","target":"record","created_at":"2026-07-05T05:31:21Z","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":"31aea20c039eb1a6f51f507f1632d417ee7f928bfd3b2accee3dcfd53a04d099","cross_cats_sorted":["cs.SY"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2023-01-07T05:40:34Z","title_canon_sha256":"f432bdc2d57da456c6c6bfe4938eeabb618a4b99a7bece2f4324f94174e15566"},"schema_version":"1.0","source":{"id":"2301.02784","kind":"arxiv","version":1}},"canonical_sha256":"4ba0700fbf538f3be63395bd53b3bf808a1bd62b7b7d6efb1f67fc3a22956ac3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4ba0700fbf538f3be63395bd53b3bf808a1bd62b7b7d6efb1f67fc3a22956ac3","first_computed_at":"2026-07-05T05:31:21.811078Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:31:21.811078Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SRd2jStDJt6OBWm22NVuNefFhawhG0WGs6CCz5LIlZfTl2/RSfwcMsl4RcaZQPLLroQPpgvGzZrwAB2xNNQICw==","signature_status":"signed_v1","signed_at":"2026-07-05T05:31:21.811482Z","signed_message":"canonical_sha256_bytes"},"source_id":"2301.02784","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c32f6d2c3877a73412d5ff2914b5f6aa44140bf64e134418e228803c81d6f1c2","sha256:2a0991edb85007c79b9a0f0cb04c324498fbfeb9f67ca6a180203c765f9979e9"],"state_sha256":"671e44bd622a846ea4eb0b92c229070121d4559842a6023893400575a2ab7e83"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XO3qya2/SMXcd9KBry6kpXloXWrj79tiJBW62x5nPEnYGHWd9daMPphm76eYocihz4M9TfVD4c7jPAcPu3x3Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T12:21:50.640194Z","bundle_sha256":"a4e1730fc72839530f92eb89a9ca41c2cba162a1e3b7f1393cb9fc40585f6c3f"}}