{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:R6QDEQFYK3OEC6POEIOX7HSTGP","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":"115eb93cec614a29dc0987a7927178ad65161b42d488f3ca36cc57d0aee4a3d6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2019-02-14T03:39:19Z","title_canon_sha256":"9096af65b261af9916b9cb129b1382155532d311a783915891250f778a88add9"},"schema_version":"1.0","source":{"id":"1902.05204","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.05204","created_at":"2026-05-17T23:54:01Z"},{"alias_kind":"arxiv_version","alias_value":"1902.05204v1","created_at":"2026-05-17T23:54:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.05204","created_at":"2026-05-17T23:54:01Z"},{"alias_kind":"pith_short_12","alias_value":"R6QDEQFYK3OE","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"R6QDEQFYK3OEC6PO","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"R6QDEQFY","created_at":"2026-05-18T12:33:27Z"}],"graph_snapshots":[{"event_id":"sha256:ced323b98905ab037e22f6cf8c8b13087a711aca4c53e3ae1ecf58bb719a0bfa","target":"graph","created_at":"2026-05-17T23:54:01Z","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":"This paper presents TIRA, a Matlab library gathering several methods for the computation of interval over-approximations of the reachable sets for both continuous- and discrete-time nonlinear systems. Unlike other existing tools, the main strength of interval-based reachability analysis is its simplicity and scalability, rather than the accuracy of the over-approximations. The current implementation of TIRA contains four reachability methods covering wide classes of nonlinear systems, handled with recent results relying on contraction/growth bounds and monotonicity concepts. TIRA's architectur","authors_text":"Alex Devonport, Murat Arcak, Pierre-Jean Meyer","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2019-02-14T03:39:19Z","title":"TIRA: Toolbox for Interval Reachability Analysis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.05204","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:cc1f8d8d707d4c212bd9b2b9622a5ab083d34da99662ceed43cc711af18af828","target":"record","created_at":"2026-05-17T23:54:01Z","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":"115eb93cec614a29dc0987a7927178ad65161b42d488f3ca36cc57d0aee4a3d6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SY","submitted_at":"2019-02-14T03:39:19Z","title_canon_sha256":"9096af65b261af9916b9cb129b1382155532d311a783915891250f778a88add9"},"schema_version":"1.0","source":{"id":"1902.05204","kind":"arxiv","version":1}},"canonical_sha256":"8fa03240b856dc4179ee221d7f9e5333fcf77e1299dd0a3560af0d37aae4e64b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8fa03240b856dc4179ee221d7f9e5333fcf77e1299dd0a3560af0d37aae4e64b","first_computed_at":"2026-05-17T23:54:01.595512Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:54:01.595512Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CyoDem8JEo+5qlbTpuJrlf0boVmVxg4v8lCi3K6clLRw48/FATeuVNfdXuWDSvY2ATvHSd3LCwlnYsY70M00Bg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:54:01.596158Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.05204","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cc1f8d8d707d4c212bd9b2b9622a5ab083d34da99662ceed43cc711af18af828","sha256:ced323b98905ab037e22f6cf8c8b13087a711aca4c53e3ae1ecf58bb719a0bfa"],"state_sha256":"731122cf39c1469d07dc945ad4c8f4b30ac1ef8d615fed1bbc9d8c1c2d1645a5"}