{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:5JDRBHLHGZZD5PXF2ALMCHXBXO","short_pith_number":"pith:5JDRBHLH","canonical_record":{"source":{"id":"1212.6844","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2012-12-31T09:20:05Z","cross_cats_sorted":[],"title_canon_sha256":"4878d42abc708fdf4ca3feaea929fdf7c32bc95912b6e3fa852bf5a33e027406","abstract_canon_sha256":"5d7fe2e5bee7816d632ddade8beda7f8497820f5100386cb295df8c9daa09874"},"schema_version":"1.0"},"canonical_sha256":"ea47109d6736723ebee5d016c11ee1bbb2403442a109dd7090363fb970f0ed00","source":{"kind":"arxiv","id":"1212.6844","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.6844","created_at":"2026-05-18T01:52:22Z"},{"alias_kind":"arxiv_version","alias_value":"1212.6844v1","created_at":"2026-05-18T01:52:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.6844","created_at":"2026-05-18T01:52:22Z"},{"alias_kind":"pith_short_12","alias_value":"5JDRBHLHGZZD","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"5JDRBHLHGZZD5PXF","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"5JDRBHLH","created_at":"2026-05-18T12:26:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:5JDRBHLHGZZD5PXF2ALMCHXBXO","target":"record","payload":{"canonical_record":{"source":{"id":"1212.6844","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2012-12-31T09:20:05Z","cross_cats_sorted":[],"title_canon_sha256":"4878d42abc708fdf4ca3feaea929fdf7c32bc95912b6e3fa852bf5a33e027406","abstract_canon_sha256":"5d7fe2e5bee7816d632ddade8beda7f8497820f5100386cb295df8c9daa09874"},"schema_version":"1.0"},"canonical_sha256":"ea47109d6736723ebee5d016c11ee1bbb2403442a109dd7090363fb970f0ed00","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:52:22.671261Z","signature_b64":"PBGi6821jXnws21kcpg+O+m1mP2mkOq559CfvJM71TeDjBgcgEG5t64SPnZY9pDcjjvqcm+LRsYU8WYsAs/fCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ea47109d6736723ebee5d016c11ee1bbb2403442a109dd7090363fb970f0ed00","last_reissued_at":"2026-05-18T01:52:22.670876Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:52:22.670876Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1212.6844","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:52:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lYm+DCoY5A+VTNtEBIzv0JuLQb12kLc4exiSuCsMKe1aYTp3Q/63DsnNIqg9/WHFsphJQl603rdNUUU0eEMEAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T17:12:24.469513Z"},"content_sha256":"f89be3be37569bec72497333ff0738c2bad9dacde748a12f812f0db25219beb3","schema_version":"1.0","event_id":"sha256:f89be3be37569bec72497333ff0738c2bad9dacde748a12f812f0db25219beb3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:5JDRBHLHGZZD5PXF2ALMCHXBXO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Improving Robustness via Disjunctive Statements in Imperative Programming","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.PL","authors_text":"Keehang Kwon, Mi-Young Park, Sungwoo Hur","submitted_at":"2012-12-31T09:20:05Z","abstract_excerpt":"To deal with failures as simply as possible, we propose a new foun- dation for the core (untyped) C, which is based on a new logic called task logic or imperative logic. We then introduce a sequential-disjunctive statement of the form S : R. This statement has the following semantics: execute S and R sequentially. It is considered a success if at least one of S;R is a success. This statement is useful for dealing with inessential errors without explicitly catching them."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.6844","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:52:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CS6hvzMFfYbsO0AAoL3D5SUu000QxT5mbqkGT6DZFyoTmW6SJ0BmuEUf98dhloQgsFvPMWOzinA/7K9/w96dBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T17:12:24.470231Z"},"content_sha256":"26a5862ad66e3f07228e589cc841eb9d2741cbaf19553c4efb3036c3ef76d742","schema_version":"1.0","event_id":"sha256:26a5862ad66e3f07228e589cc841eb9d2741cbaf19553c4efb3036c3ef76d742"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5JDRBHLHGZZD5PXF2ALMCHXBXO/bundle.json","state_url":"https://pith.science/pith/5JDRBHLHGZZD5PXF2ALMCHXBXO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5JDRBHLHGZZD5PXF2ALMCHXBXO/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-30T17:12:24Z","links":{"resolver":"https://pith.science/pith/5JDRBHLHGZZD5PXF2ALMCHXBXO","bundle":"https://pith.science/pith/5JDRBHLHGZZD5PXF2ALMCHXBXO/bundle.json","state":"https://pith.science/pith/5JDRBHLHGZZD5PXF2ALMCHXBXO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5JDRBHLHGZZD5PXF2ALMCHXBXO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:5JDRBHLHGZZD5PXF2ALMCHXBXO","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":"5d7fe2e5bee7816d632ddade8beda7f8497820f5100386cb295df8c9daa09874","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2012-12-31T09:20:05Z","title_canon_sha256":"4878d42abc708fdf4ca3feaea929fdf7c32bc95912b6e3fa852bf5a33e027406"},"schema_version":"1.0","source":{"id":"1212.6844","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.6844","created_at":"2026-05-18T01:52:22Z"},{"alias_kind":"arxiv_version","alias_value":"1212.6844v1","created_at":"2026-05-18T01:52:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.6844","created_at":"2026-05-18T01:52:22Z"},{"alias_kind":"pith_short_12","alias_value":"5JDRBHLHGZZD","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"5JDRBHLHGZZD5PXF","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"5JDRBHLH","created_at":"2026-05-18T12:26:53Z"}],"graph_snapshots":[{"event_id":"sha256:26a5862ad66e3f07228e589cc841eb9d2741cbaf19553c4efb3036c3ef76d742","target":"graph","created_at":"2026-05-18T01:52:22Z","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":"To deal with failures as simply as possible, we propose a new foun- dation for the core (untyped) C, which is based on a new logic called task logic or imperative logic. We then introduce a sequential-disjunctive statement of the form S : R. This statement has the following semantics: execute S and R sequentially. It is considered a success if at least one of S;R is a success. This statement is useful for dealing with inessential errors without explicitly catching them.","authors_text":"Keehang Kwon, Mi-Young Park, Sungwoo Hur","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2012-12-31T09:20:05Z","title":"Improving Robustness via Disjunctive Statements in Imperative Programming"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.6844","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:f89be3be37569bec72497333ff0738c2bad9dacde748a12f812f0db25219beb3","target":"record","created_at":"2026-05-18T01:52:22Z","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":"5d7fe2e5bee7816d632ddade8beda7f8497820f5100386cb295df8c9daa09874","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2012-12-31T09:20:05Z","title_canon_sha256":"4878d42abc708fdf4ca3feaea929fdf7c32bc95912b6e3fa852bf5a33e027406"},"schema_version":"1.0","source":{"id":"1212.6844","kind":"arxiv","version":1}},"canonical_sha256":"ea47109d6736723ebee5d016c11ee1bbb2403442a109dd7090363fb970f0ed00","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ea47109d6736723ebee5d016c11ee1bbb2403442a109dd7090363fb970f0ed00","first_computed_at":"2026-05-18T01:52:22.670876Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:52:22.670876Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PBGi6821jXnws21kcpg+O+m1mP2mkOq559CfvJM71TeDjBgcgEG5t64SPnZY9pDcjjvqcm+LRsYU8WYsAs/fCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:52:22.671261Z","signed_message":"canonical_sha256_bytes"},"source_id":"1212.6844","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f89be3be37569bec72497333ff0738c2bad9dacde748a12f812f0db25219beb3","sha256:26a5862ad66e3f07228e589cc841eb9d2741cbaf19553c4efb3036c3ef76d742"],"state_sha256":"dac16c8e29c90fe47d0dbf4697578649ef56c1ba6e2412932b87021b88780fab"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HuAoc73B7ZFMhSS1QNSycSiA6Uaa1/j7vyZJrFh8qrQtftzx1TPagt+a2Io1bAPITHO6ZZjGMDEu/Um2HBp+CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T17:12:24.473609Z","bundle_sha256":"afd18c4e9345a298a4faf43e49d07ec20226329835eee1d69474a0c260c8d450"}}