{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:AK3DLQMV7CFPD2VJ67NRTBIMWB","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":"1e737f08639e36b26a0e169813d882ccffca86e67f882a77ec6b45874bf03bcd","cross_cats_sorted":["cs.SY","math.OC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2011-04-23T13:37:18Z","title_canon_sha256":"a19a625375812dc4d008287501aad4289b4713f461536f8eaca36f21cf2458ce"},"schema_version":"1.0","source":{"id":"1104.4558","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.4558","created_at":"2026-05-18T04:11:39Z"},{"alias_kind":"arxiv_version","alias_value":"1104.4558v2","created_at":"2026-05-18T04:11:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.4558","created_at":"2026-05-18T04:11:39Z"},{"alias_kind":"pith_short_12","alias_value":"AK3DLQMV7CFP","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_16","alias_value":"AK3DLQMV7CFPD2VJ","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_8","alias_value":"AK3DLQMV","created_at":"2026-05-18T12:26:24Z"}],"graph_snapshots":[{"event_id":"sha256:a582690a145f71b4f0fc659bff24d92827031d7b374de19da943db1ec3124739","target":"graph","created_at":"2026-05-18T04:11:39Z","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":"We study the evolution of fast blackout cascades in the model of the Polish (transmission) power grid (2700 nodes and 3504 transmission lines). The cascade is initiated by a sufficiently severe initial contingency tripping. It propagates via sequential trippings of many more overheated lines, islanding loads and generators and eventually arriving at a fixed point with the surviving part of the system being power-flow-balanced and the rest of the system being outaged. Utilizing an improved form of the quasi-static model for cascade propagation introduced in our earlier study (Statistical Classi","authors_text":"Konstantin Turitsyn, Michael Chertkov, Ren\\'e Pfitzner","cross_cats":["cs.SY","math.OC"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2011-04-23T13:37:18Z","title":"Controlled Tripping of Overheated Lines Mitigates Power Outages"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.4558","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":"sha256:7378afc5c7ea18a47808797df5bd96df292097169972d87a0cf0da4dcba90dee","target":"record","created_at":"2026-05-18T04:11:39Z","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":"1e737f08639e36b26a0e169813d882ccffca86e67f882a77ec6b45874bf03bcd","cross_cats_sorted":["cs.SY","math.OC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2011-04-23T13:37:18Z","title_canon_sha256":"a19a625375812dc4d008287501aad4289b4713f461536f8eaca36f21cf2458ce"},"schema_version":"1.0","source":{"id":"1104.4558","kind":"arxiv","version":2}},"canonical_sha256":"02b635c195f88af1eaa9f7db19850cb06c66ec22e681e6733cc6d8d8cdb1f338","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"02b635c195f88af1eaa9f7db19850cb06c66ec22e681e6733cc6d8d8cdb1f338","first_computed_at":"2026-05-18T04:11:39.558010Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:11:39.558010Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MhTgDuc0Bl4c4KedIbWnkh8lNWf8+HLiPd+5COzMdQcRGTqAn3FPon6t3iLmeOXoowVl/eyb7R9L5/FEm8GgAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:11:39.558499Z","signed_message":"canonical_sha256_bytes"},"source_id":"1104.4558","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7378afc5c7ea18a47808797df5bd96df292097169972d87a0cf0da4dcba90dee","sha256:a582690a145f71b4f0fc659bff24d92827031d7b374de19da943db1ec3124739"],"state_sha256":"192bd97ed6a4bb7d3f750c5a601b7ee224fd4a95d92a51b25b392b80cfe0c0ad"}