{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:GTFVNJMP6ZSTKQU27HSQT7N3KV","short_pith_number":"pith:GTFVNJMP","canonical_record":{"source":{"id":"2605.26527","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DC","submitted_at":"2026-05-26T04:19:20Z","cross_cats_sorted":["cs.PL"],"title_canon_sha256":"aa46ff970c9fcff7f4fc4c134d7aaa9f6e6f2e04b778b4749f6364f5de262e60","abstract_canon_sha256":"7f19aa6a27f71f627ea26d61493fcd1b618c18a83883da44326c7f6b3df7a7fa"},"schema_version":"1.0"},"canonical_sha256":"34cb56a58ff66535429af9e509fdbb55641910d102d90b1b692cb9f3b581066e","source":{"kind":"arxiv","id":"2605.26527","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.26527","created_at":"2026-05-27T01:05:25Z"},{"alias_kind":"arxiv_version","alias_value":"2605.26527v1","created_at":"2026-05-27T01:05:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.26527","created_at":"2026-05-27T01:05:25Z"},{"alias_kind":"pith_short_12","alias_value":"GTFVNJMP6ZST","created_at":"2026-05-27T01:05:25Z"},{"alias_kind":"pith_short_16","alias_value":"GTFVNJMP6ZSTKQU2","created_at":"2026-05-27T01:05:25Z"},{"alias_kind":"pith_short_8","alias_value":"GTFVNJMP","created_at":"2026-05-27T01:05:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:GTFVNJMP6ZSTKQU27HSQT7N3KV","target":"record","payload":{"canonical_record":{"source":{"id":"2605.26527","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DC","submitted_at":"2026-05-26T04:19:20Z","cross_cats_sorted":["cs.PL"],"title_canon_sha256":"aa46ff970c9fcff7f4fc4c134d7aaa9f6e6f2e04b778b4749f6364f5de262e60","abstract_canon_sha256":"7f19aa6a27f71f627ea26d61493fcd1b618c18a83883da44326c7f6b3df7a7fa"},"schema_version":"1.0"},"canonical_sha256":"34cb56a58ff66535429af9e509fdbb55641910d102d90b1b692cb9f3b581066e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-27T01:05:25.304396Z","signature_b64":"jePBhW32LbKI5z0gZABj51Lp0j39evWRRbYRUd66+ED5qcqDCZmz8gybyb7i+RpyJ2qxXA8bbz9z8AelI40XDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"34cb56a58ff66535429af9e509fdbb55641910d102d90b1b692cb9f3b581066e","last_reissued_at":"2026-05-27T01:05:25.303888Z","signature_status":"signed_v1","first_computed_at":"2026-05-27T01:05:25.303888Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.26527","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":"2026-05-27T01:05:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gb3JdtEBpt+qRf9bHSOyZCcB4VDjUngTWGuGhNAsnESdLQl8+w65SmK90T/YD1bj9WH4oVlcL6PYvLiM7YiZCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T22:20:33.867367Z"},"content_sha256":"daec6d9459684ac4239a4f514c3dcdf837963b06c82d8ef7239489aba3442ab0","schema_version":"1.0","event_id":"sha256:daec6d9459684ac4239a4f514c3dcdf837963b06c82d8ef7239489aba3442ab0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:GTFVNJMP6ZSTKQU27HSQT7N3KV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Formal Semantics of C with OpenMP Parallelism","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.PL"],"primary_cat":"cs.DC","authors_text":"Anshu Sharma, Ke Du, Liyi Li, William Mansky","submitted_at":"2026-05-26T04:19:20Z","abstract_excerpt":"OpenMP is a popular parallelization framework that lets users transform sequential code into parallel code with a few simple annotations. Unfortunately, it is also easy to inadvertently introduce errors by adding OpenMP pragmas into otherwise correct programs, including both logic errors and race conditions. We present a formal semantics for C code with OpenMP directives, building on the C semantics of the CompCert verified compiler and its extension to concurrency. Our semantics captures subtle interactions between OpenMP directives and variable state that have been obscured by previous OpenM"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.26527","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.26527/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-05-27T01:05:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fD80ewUjvwdqjUnm4oIOu4t59eofocOVIamYFpN6djvAkqqLESFNGBi2st1zJJzlyoDu70JSb73alfXRJ9ZlBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T22:20:33.867752Z"},"content_sha256":"ff663faf14c85f08f6d0c08baea28b502040580b25b1b53f45f99bdb4df3b688","schema_version":"1.0","event_id":"sha256:ff663faf14c85f08f6d0c08baea28b502040580b25b1b53f45f99bdb4df3b688"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GTFVNJMP6ZSTKQU27HSQT7N3KV/bundle.json","state_url":"https://pith.science/pith/GTFVNJMP6ZSTKQU27HSQT7N3KV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GTFVNJMP6ZSTKQU27HSQT7N3KV/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":"2026-06-26T22:20:33Z","links":{"resolver":"https://pith.science/pith/GTFVNJMP6ZSTKQU27HSQT7N3KV","bundle":"https://pith.science/pith/GTFVNJMP6ZSTKQU27HSQT7N3KV/bundle.json","state":"https://pith.science/pith/GTFVNJMP6ZSTKQU27HSQT7N3KV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GTFVNJMP6ZSTKQU27HSQT7N3KV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:GTFVNJMP6ZSTKQU27HSQT7N3KV","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":"7f19aa6a27f71f627ea26d61493fcd1b618c18a83883da44326c7f6b3df7a7fa","cross_cats_sorted":["cs.PL"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DC","submitted_at":"2026-05-26T04:19:20Z","title_canon_sha256":"aa46ff970c9fcff7f4fc4c134d7aaa9f6e6f2e04b778b4749f6364f5de262e60"},"schema_version":"1.0","source":{"id":"2605.26527","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.26527","created_at":"2026-05-27T01:05:25Z"},{"alias_kind":"arxiv_version","alias_value":"2605.26527v1","created_at":"2026-05-27T01:05:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.26527","created_at":"2026-05-27T01:05:25Z"},{"alias_kind":"pith_short_12","alias_value":"GTFVNJMP6ZST","created_at":"2026-05-27T01:05:25Z"},{"alias_kind":"pith_short_16","alias_value":"GTFVNJMP6ZSTKQU2","created_at":"2026-05-27T01:05:25Z"},{"alias_kind":"pith_short_8","alias_value":"GTFVNJMP","created_at":"2026-05-27T01:05:25Z"}],"graph_snapshots":[{"event_id":"sha256:ff663faf14c85f08f6d0c08baea28b502040580b25b1b53f45f99bdb4df3b688","target":"graph","created_at":"2026-05-27T01:05:25Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2605.26527/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"OpenMP is a popular parallelization framework that lets users transform sequential code into parallel code with a few simple annotations. Unfortunately, it is also easy to inadvertently introduce errors by adding OpenMP pragmas into otherwise correct programs, including both logic errors and race conditions. We present a formal semantics for C code with OpenMP directives, building on the C semantics of the CompCert verified compiler and its extension to concurrency. Our semantics captures subtle interactions between OpenMP directives and variable state that have been obscured by previous OpenM","authors_text":"Anshu Sharma, Ke Du, Liyi Li, William Mansky","cross_cats":["cs.PL"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DC","submitted_at":"2026-05-26T04:19:20Z","title":"A Formal Semantics of C with OpenMP Parallelism"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.26527","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:daec6d9459684ac4239a4f514c3dcdf837963b06c82d8ef7239489aba3442ab0","target":"record","created_at":"2026-05-27T01:05:25Z","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":"7f19aa6a27f71f627ea26d61493fcd1b618c18a83883da44326c7f6b3df7a7fa","cross_cats_sorted":["cs.PL"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DC","submitted_at":"2026-05-26T04:19:20Z","title_canon_sha256":"aa46ff970c9fcff7f4fc4c134d7aaa9f6e6f2e04b778b4749f6364f5de262e60"},"schema_version":"1.0","source":{"id":"2605.26527","kind":"arxiv","version":1}},"canonical_sha256":"34cb56a58ff66535429af9e509fdbb55641910d102d90b1b692cb9f3b581066e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"34cb56a58ff66535429af9e509fdbb55641910d102d90b1b692cb9f3b581066e","first_computed_at":"2026-05-27T01:05:25.303888Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-27T01:05:25.303888Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jePBhW32LbKI5z0gZABj51Lp0j39evWRRbYRUd66+ED5qcqDCZmz8gybyb7i+RpyJ2qxXA8bbz9z8AelI40XDQ==","signature_status":"signed_v1","signed_at":"2026-05-27T01:05:25.304396Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.26527","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:daec6d9459684ac4239a4f514c3dcdf837963b06c82d8ef7239489aba3442ab0","sha256:ff663faf14c85f08f6d0c08baea28b502040580b25b1b53f45f99bdb4df3b688"],"state_sha256":"1947cade1d0b73640b769fce9bf58a2b35a1bf8544ad00bb200264c01e1c7246"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cXbIXUsSBz3F3psgS9Atz1MpS56MIQA2JbVwejKlZZ2yOGAaN7hYWAJMO8kW0Z8fnj1nCEGxrlD9DMAwrEY0CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-26T22:20:33.869714Z","bundle_sha256":"ec582dacf12735ab3515a1ab97f3dedd12b9a79639b32b2403f213de8b9314c1"}}