{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:BGNMNUWG5APVV64ZR2S65DNHRC","short_pith_number":"pith:BGNMNUWG","schema_version":"1.0","canonical_sha256":"099ac6d2c6e81f5afb998ea5ee8da788ac131820749d5f503d10723e20bcd1e1","source":{"kind":"arxiv","id":"1902.02816","version":1},"attestation_state":"computed","paper":{"title":"Revec: Program Rejuvenation through Revectorization","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.PF"],"primary_cat":"cs.PL","authors_text":"Ajay Jain, Charith Mendis, Paras Jain, Saman Amarasinghe","submitted_at":"2019-02-07T19:37:45Z","abstract_excerpt":"Modern microprocessors are equipped with Single Instruction Multiple Data (SIMD) or vector instructions which expose data level parallelism at a fine granularity. Programmers exploit this parallelism by using low-level vector intrinsics in their code. However, once programs are written using vector intrinsics of a specific instruction set, the code becomes non-portable. Modern compilers are unable to analyze and retarget the code to newer vector instruction sets. Hence, programmers have to manually rewrite the same code using vector intrinsics of a newer generation to exploit higher data width"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1902.02816","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.PL","submitted_at":"2019-02-07T19:37:45Z","cross_cats_sorted":["cs.PF"],"title_canon_sha256":"5f01645bd4723d28edf86c4e45f7b94a4a67eb38baccd872be29550ad84c86e9","abstract_canon_sha256":"36a94711112ecd0b72ffd4774bdfc9db7fd6d08781da77f2a779cb37a448b4ba"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:54:29.167381Z","signature_b64":"Z6HtG8RzsbP0n0se8JqpSurYqTi65UnqzeIZam42ElEQD4jmC5QXA2eHf95toruRvu20XIns5OygvEZ3lNiPCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"099ac6d2c6e81f5afb998ea5ee8da788ac131820749d5f503d10723e20bcd1e1","last_reissued_at":"2026-05-17T23:54:29.166691Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:54:29.166691Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Revec: Program Rejuvenation through Revectorization","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.PF"],"primary_cat":"cs.PL","authors_text":"Ajay Jain, Charith Mendis, Paras Jain, Saman Amarasinghe","submitted_at":"2019-02-07T19:37:45Z","abstract_excerpt":"Modern microprocessors are equipped with Single Instruction Multiple Data (SIMD) or vector instructions which expose data level parallelism at a fine granularity. Programmers exploit this parallelism by using low-level vector intrinsics in their code. However, once programs are written using vector intrinsics of a specific instruction set, the code becomes non-portable. Modern compilers are unable to analyze and retarget the code to newer vector instruction sets. Hence, programmers have to manually rewrite the same code using vector intrinsics of a newer generation to exploit higher data width"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.02816","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1902.02816","created_at":"2026-05-17T23:54:29.166790+00:00"},{"alias_kind":"arxiv_version","alias_value":"1902.02816v1","created_at":"2026-05-17T23:54:29.166790+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.02816","created_at":"2026-05-17T23:54:29.166790+00:00"},{"alias_kind":"pith_short_12","alias_value":"BGNMNUWG5APV","created_at":"2026-05-18T12:33:12.712433+00:00"},{"alias_kind":"pith_short_16","alias_value":"BGNMNUWG5APVV64Z","created_at":"2026-05-18T12:33:12.712433+00:00"},{"alias_kind":"pith_short_8","alias_value":"BGNMNUWG","created_at":"2026-05-18T12:33:12.712433+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/BGNMNUWG5APVV64ZR2S65DNHRC","json":"https://pith.science/pith/BGNMNUWG5APVV64ZR2S65DNHRC.json","graph_json":"https://pith.science/api/pith-number/BGNMNUWG5APVV64ZR2S65DNHRC/graph.json","events_json":"https://pith.science/api/pith-number/BGNMNUWG5APVV64ZR2S65DNHRC/events.json","paper":"https://pith.science/paper/BGNMNUWG"},"agent_actions":{"view_html":"https://pith.science/pith/BGNMNUWG5APVV64ZR2S65DNHRC","download_json":"https://pith.science/pith/BGNMNUWG5APVV64ZR2S65DNHRC.json","view_paper":"https://pith.science/paper/BGNMNUWG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1902.02816&json=true","fetch_graph":"https://pith.science/api/pith-number/BGNMNUWG5APVV64ZR2S65DNHRC/graph.json","fetch_events":"https://pith.science/api/pith-number/BGNMNUWG5APVV64ZR2S65DNHRC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/BGNMNUWG5APVV64ZR2S65DNHRC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/BGNMNUWG5APVV64ZR2S65DNHRC/action/storage_attestation","attest_author":"https://pith.science/pith/BGNMNUWG5APVV64ZR2S65DNHRC/action/author_attestation","sign_citation":"https://pith.science/pith/BGNMNUWG5APVV64ZR2S65DNHRC/action/citation_signature","submit_replication":"https://pith.science/pith/BGNMNUWG5APVV64ZR2S65DNHRC/action/replication_record"}},"created_at":"2026-05-17T23:54:29.166790+00:00","updated_at":"2026-05-17T23:54:29.166790+00:00"}