{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:PNVMS3QXALXMFWLPDZNQVRPDU6","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":"4a79591e002fa11a7161a54f395015e671fb5a7e6d93d49321c21c0c7ce1d9e7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2020-04-09T09:29:20Z","title_canon_sha256":"ac37ae6b294995d6014b0463b3ec732c1fcbfd0fcb2afa4c3656593590a754de"},"schema_version":"1.0","source":{"id":"2004.04442","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2004.04442","created_at":"2026-07-05T00:54:34Z"},{"alias_kind":"arxiv_version","alias_value":"2004.04442v2","created_at":"2026-07-05T00:54:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.04442","created_at":"2026-07-05T00:54:34Z"},{"alias_kind":"pith_short_12","alias_value":"PNVMS3QXALXM","created_at":"2026-07-05T00:54:34Z"},{"alias_kind":"pith_short_16","alias_value":"PNVMS3QXALXMFWLP","created_at":"2026-07-05T00:54:34Z"},{"alias_kind":"pith_short_8","alias_value":"PNVMS3QX","created_at":"2026-07-05T00:54:34Z"}],"graph_snapshots":[{"event_id":"sha256:50aa79ff79c1cd71520fa8623d8024a9d22d8cb7f9341c37a05f7a779d2d7046","target":"graph","created_at":"2026-07-05T00:54:34Z","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/2004.04442/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"As the industrial cyber-infrastructure become increasingly important to realise the objectives of Industry~4.0, the consequence of disruption due to internal or external faults become increasingly severe. Thus there is a need for a resilient infrastructure. In this paper, we propose a contract-based methodology where components across layers of the cyber-infrastructure are associated with contracts and a light-weight resilience manager. This allows the system to detect faults (contract violation monitored using observers) and react (change contracts dynamically) effectively.","authors_text":"(2) Delta Electronics Inc., Arvind Easwaran (1), Daniel Jun Xian Ng (1), Karthik Thangamariappan (2) ((1) Nanyang Technological University, Sidharta Andalam (1), Singapore, Singapore)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2020-04-09T09:29:20Z","title":"Contract-based Methodology for Developing Resilient Cyber-Infrastructure in the Industry 4.0 Era"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.04442","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:e0365f5d013bc1cfdb7c4b6a0b3ea3f18232ec41abc8cd80474b1a98a36f4d4d","target":"record","created_at":"2026-07-05T00:54:34Z","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":"4a79591e002fa11a7161a54f395015e671fb5a7e6d93d49321c21c0c7ce1d9e7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2020-04-09T09:29:20Z","title_canon_sha256":"ac37ae6b294995d6014b0463b3ec732c1fcbfd0fcb2afa4c3656593590a754de"},"schema_version":"1.0","source":{"id":"2004.04442","kind":"arxiv","version":2}},"canonical_sha256":"7b6ac96e1702eec2d96f1e5b0ac5e3a79f9dbd4e1d2a63a7275ebcfa8da32c02","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7b6ac96e1702eec2d96f1e5b0ac5e3a79f9dbd4e1d2a63a7275ebcfa8da32c02","first_computed_at":"2026-07-05T00:54:34.052261Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:54:34.052261Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hbt7nNhRSu1lY0VmXmnIiIqgE2HPGmZ9Tc95ap/ED98NOgy6Q1JDDbVnBbx5LvocnPwX4WZMEeS+NouYwJDXCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:54:34.052712Z","signed_message":"canonical_sha256_bytes"},"source_id":"2004.04442","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e0365f5d013bc1cfdb7c4b6a0b3ea3f18232ec41abc8cd80474b1a98a36f4d4d","sha256:50aa79ff79c1cd71520fa8623d8024a9d22d8cb7f9341c37a05f7a779d2d7046"],"state_sha256":"73afcc845b200cd9476fe501534ccbc3a2a6476d8110d8faa324f2d65869ed10"}