{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:236YL6ZRQIDTEGJ7BCNZCN2G5P","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":"f1a76310e4ea1184d3783fc605173f709ed4ec98483f304145087453d3bf133a","cross_cats_sorted":["math.CT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2012-03-13T19:21:55Z","title_canon_sha256":"dd49a28b667fb876b505612ec596977145db66ccddc39c406c58d78416cfe920"},"schema_version":"1.0","source":{"id":"1203.2900","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.2900","created_at":"2026-05-18T04:00:13Z"},{"alias_kind":"arxiv_version","alias_value":"1203.2900v1","created_at":"2026-05-18T04:00:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.2900","created_at":"2026-05-18T04:00:13Z"},{"alias_kind":"pith_short_12","alias_value":"236YL6ZRQIDT","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"236YL6ZRQIDTEGJ7","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"236YL6ZR","created_at":"2026-05-18T12:26:50Z"}],"graph_snapshots":[{"event_id":"sha256:349ddfca444e7646973e9cc2c62bc847a0b1ef142a860ad1ea8aa113492d2f3a","target":"graph","created_at":"2026-05-18T04:00:13Z","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 define a proof system for exceptions which is close to the syntax for exceptions, in the sense that the exceptions do not appear explicitly in the type of any expression. This proof system is sound with respect to the intended denotational semantics of exceptions. With this inference system we prove several properties of exceptions.","authors_text":"Dominique Duval (LJK), Jean-Claude Reynaud (RC), Jean-Guillaume Dumas (LJK), Laurent Fousse (LJK)","cross_cats":["math.CT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2012-03-13T19:21:55Z","title":"Decorated proofs for computational effects: Exceptions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.2900","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":"sha256:8e7cfbeb7d8f8f73be3fdda03fe78445d89b2170d21486e5ce3d0f62157d9bb7","target":"record","created_at":"2026-05-18T04:00:13Z","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":"f1a76310e4ea1184d3783fc605173f709ed4ec98483f304145087453d3bf133a","cross_cats_sorted":["math.CT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2012-03-13T19:21:55Z","title_canon_sha256":"dd49a28b667fb876b505612ec596977145db66ccddc39c406c58d78416cfe920"},"schema_version":"1.0","source":{"id":"1203.2900","kind":"arxiv","version":1}},"canonical_sha256":"d6fd85fb31820732193f089b913746ebda6d02ee6eb41de4c5d1fafe46089135","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d6fd85fb31820732193f089b913746ebda6d02ee6eb41de4c5d1fafe46089135","first_computed_at":"2026-05-18T04:00:13.092837Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:00:13.092837Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SAtxcXuikVcuKB/YVdXMBLaqeKBow/anUBWrB8B4oN0SYkpndwvPVxAIv7OejAXf/mbe/Tpyv0zE5g4ZmGriCg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:00:13.093456Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.2900","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8e7cfbeb7d8f8f73be3fdda03fe78445d89b2170d21486e5ce3d0f62157d9bb7","sha256:349ddfca444e7646973e9cc2c62bc847a0b1ef142a860ad1ea8aa113492d2f3a"],"state_sha256":"abe235b5ce618fb12c13b75dc0141a5277005981b63f3ec0724e0969d128cc42"}