{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:DPVOPZFPKHX6JXSAD7XVZOYT2G","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":"09ac3fe1526652a2195301670649d916b2e9547e2382f7edd78b60ca277fab98","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2011-07-06T15:52:36Z","title_canon_sha256":"d06729391a99484d33255f9f696df91534b01814d3a1b3cd88b2d79a04c710bd"},"schema_version":"1.0","source":{"id":"1107.1166","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.1166","created_at":"2026-05-18T04:18:45Z"},{"alias_kind":"arxiv_version","alias_value":"1107.1166v1","created_at":"2026-05-18T04:18:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.1166","created_at":"2026-05-18T04:18:45Z"},{"alias_kind":"pith_short_12","alias_value":"DPVOPZFPKHX6","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_16","alias_value":"DPVOPZFPKHX6JXSA","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_8","alias_value":"DPVOPZFP","created_at":"2026-05-18T12:26:26Z"}],"graph_snapshots":[{"event_id":"sha256:0bd680fb90b1026d33578271549e13c94772138ce4fe870a2a7a6339073e361a","target":"graph","created_at":"2026-05-18T04:18:45Z","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":"We introduce a technique for reachability analysis of Time-Basic (TB) Petri nets, a powerful formalism for real- time systems where time constraints are expressed as intervals, representing possible transition firing times, whose bounds are functions of marking's time description. The technique consists of building a symbolic reachability graph relying on a sort of time coverage, and overcomes the limitations of the only available analyzer for TB nets, based in turn on a time-bounded inspection of a (possibly infinite) reachability-tree. The graph construction algorithm has been automated by a","authors_text":"Carlo Bellettini, Lorenzo Capra","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2011-07-06T15:52:36Z","title":"Reachability Analysis of Time Basic Petri Nets: a Time Coverage Approach"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.1166","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:e5dd72091de073e8bbcd3c07c247dcfaf3ad3b00fb3de69f98888d9bb3afb15f","target":"record","created_at":"2026-05-18T04:18:45Z","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":"09ac3fe1526652a2195301670649d916b2e9547e2382f7edd78b60ca277fab98","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2011-07-06T15:52:36Z","title_canon_sha256":"d06729391a99484d33255f9f696df91534b01814d3a1b3cd88b2d79a04c710bd"},"schema_version":"1.0","source":{"id":"1107.1166","kind":"arxiv","version":1}},"canonical_sha256":"1beae7e4af51efe4de401fef5cbb13d18f980f65859375d1c31883cf8f3c46b6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1beae7e4af51efe4de401fef5cbb13d18f980f65859375d1c31883cf8f3c46b6","first_computed_at":"2026-05-18T04:18:45.442478Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:18:45.442478Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Gski+946zzdBPW39Z7I/1aaVx7OBWclmd/g2akIL/1nuimkI5v9aocCnEKwenLCMdcHP1JA8vU/O+jzByaMCDw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:18:45.443582Z","signed_message":"canonical_sha256_bytes"},"source_id":"1107.1166","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e5dd72091de073e8bbcd3c07c247dcfaf3ad3b00fb3de69f98888d9bb3afb15f","sha256:0bd680fb90b1026d33578271549e13c94772138ce4fe870a2a7a6339073e361a"],"state_sha256":"b2f76ce88c3d776678a3efb1607e4e810fabef10a01e0929531fd5349c223a56"}