{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:BCUAVW2N5UIQEKS7AMXIKH75IN","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":"f9aee0ad4f33f6b6cb4bcc1e336e1af57ff4f159251b58edd6997032447e3f01","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2014-09-24T12:04:07Z","title_canon_sha256":"62a35d456402316b1e1642a0c365706aad0ad79c5138c95a7e3f7fdf28f27882"},"schema_version":"1.0","source":{"id":"1409.6917","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.6917","created_at":"2026-05-18T02:42:00Z"},{"alias_kind":"arxiv_version","alias_value":"1409.6917v1","created_at":"2026-05-18T02:42:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.6917","created_at":"2026-05-18T02:42:00Z"},{"alias_kind":"pith_short_12","alias_value":"BCUAVW2N5UIQ","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_16","alias_value":"BCUAVW2N5UIQEKS7","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_8","alias_value":"BCUAVW2N","created_at":"2026-05-18T12:28:22Z"}],"graph_snapshots":[{"event_id":"sha256:7f1feca43602474428ea2b87eff4bfd62d0d1abfb289827e3ce33d19e2fdac5b","target":"graph","created_at":"2026-05-18T02:42:00Z","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":"The Unified Modelling Language is emerging as a de-facto standard for modelling object-oriented systems. However, the semantics document that a part of the standard definition primarily provides a description of the language's syntax and well-formedness rules. The meaning of the language, which is mainly described in English, is too informal and unstructured to provide a foundation for developing formal analysis and development techniques. This paper outlines a formalisation strategy for making precise the core semantics of UML. This is achieved by strengthening the denotational semantics of t","authors_text":"Andy Evans, Bernhard Rumpe, Kevin Lano, Robert France","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2014-09-24T12:04:07Z","title":"Meta-Modeling Semantics of UML"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.6917","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:c30bac0c15d3203f5bfa0f33e0d47613bc31609f3df94cd26914b782366b5ad1","target":"record","created_at":"2026-05-18T02:42:00Z","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":"f9aee0ad4f33f6b6cb4bcc1e336e1af57ff4f159251b58edd6997032447e3f01","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2014-09-24T12:04:07Z","title_canon_sha256":"62a35d456402316b1e1642a0c365706aad0ad79c5138c95a7e3f7fdf28f27882"},"schema_version":"1.0","source":{"id":"1409.6917","kind":"arxiv","version":1}},"canonical_sha256":"08a80adb4ded11022a5f032e851ffd434efc0a59f69499893ffb27e8aaf759fd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"08a80adb4ded11022a5f032e851ffd434efc0a59f69499893ffb27e8aaf759fd","first_computed_at":"2026-05-18T02:42:00.220342Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:42:00.220342Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6+onuQO6CKtV9bezhIcaPT2FFzKZQ5/l8TN4483ANcLl+MkFvxGhdB609dxPKLHmnmznbkTmiySCrJgi8munDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:42:00.220708Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.6917","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c30bac0c15d3203f5bfa0f33e0d47613bc31609f3df94cd26914b782366b5ad1","sha256:7f1feca43602474428ea2b87eff4bfd62d0d1abfb289827e3ce33d19e2fdac5b"],"state_sha256":"61efff51c52ff0f48cbbd7249ceb647f15d858814c22d37e0dabbe93083be5e3"}