{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:OIQOWPOJFHQXTYRY7BUSQZYU3G","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":"e5342da0c08ba0fb39e77674823b0b1eb1f229cfac2bb3f49f934631cc81d43c","cross_cats_sorted":["cs.LO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2016-04-27T18:01:36Z","title_canon_sha256":"f1736503507561ecea2c504642181864d77d9a8a19b94fe07afa82e5b6628123"},"schema_version":"1.0","source":{"id":"1604.08155","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.08155","created_at":"2026-05-18T01:16:07Z"},{"alias_kind":"arxiv_version","alias_value":"1604.08155v1","created_at":"2026-05-18T01:16:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.08155","created_at":"2026-05-18T01:16:07Z"},{"alias_kind":"pith_short_12","alias_value":"OIQOWPOJFHQX","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"OIQOWPOJFHQXTYRY","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"OIQOWPOJ","created_at":"2026-05-18T12:30:36Z"}],"graph_snapshots":[{"event_id":"sha256:32e60e5503b63bb11accdf3e5efe7cf26f3e4874a4dcc9844255215a3f495e85","target":"graph","created_at":"2026-05-18T01:16:07Z","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":"English language requirements are often used to specify the behavior of complex cyber-physical systems. The process of transforming these requirements to a formal specification language is often challenging, especially if the specification language does not contain constructs analogous to those used in the original requirements. For example, requirements often contain real-time constraints, but many specification languages for model checkers have discrete time semantics. Work in specification patterns helps to bridge these gaps, allowing straightforward expression of common requirements patter","authors_text":"Andrew Gacek, John D. Backes, John Komp, Michael W. Whalen","cross_cats":["cs.LO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2016-04-27T18:01:36Z","title":"On Implementing Real-time Specification Patterns Using Observers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.08155","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:e6fef3365db040f65b6a130b0e94bacbcba8e744e9e484279fbb251c3b65356b","target":"record","created_at":"2026-05-18T01:16:07Z","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":"e5342da0c08ba0fb39e77674823b0b1eb1f229cfac2bb3f49f934631cc81d43c","cross_cats_sorted":["cs.LO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2016-04-27T18:01:36Z","title_canon_sha256":"f1736503507561ecea2c504642181864d77d9a8a19b94fe07afa82e5b6628123"},"schema_version":"1.0","source":{"id":"1604.08155","kind":"arxiv","version":1}},"canonical_sha256":"7220eb3dc929e179e238f869286714d990d1bbe817d15074cf7aa89bd01d0c32","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7220eb3dc929e179e238f869286714d990d1bbe817d15074cf7aa89bd01d0c32","first_computed_at":"2026-05-18T01:16:07.944348Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:16:07.944348Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xYUwqOtdo9Y6NxvrLiR48fJYZPXxD2CJ0oR/zr1eaYZM9tQtXmkqS+T8yoT8qERo1oGbsslQmvHBhd4Mhml7BA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:16:07.944874Z","signed_message":"canonical_sha256_bytes"},"source_id":"1604.08155","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e6fef3365db040f65b6a130b0e94bacbcba8e744e9e484279fbb251c3b65356b","sha256:32e60e5503b63bb11accdf3e5efe7cf26f3e4874a4dcc9844255215a3f495e85"],"state_sha256":"243f5dcb09513c3230df386d2734cd739d4447c3040f110a5a6ddea7299749ac"}