{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:HT6LO7UTAPF26ZB3SGP4RTJ2A6","short_pith_number":"pith:HT6LO7UT","canonical_record":{"source":{"id":"1408.5925","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2014-08-25T20:50:08Z","cross_cats_sorted":["cs.MS","physics.comp-ph"],"title_canon_sha256":"ed85b4bbde54cccf3dab78c18320b465a59ccaba6e54945684bebfae3b729683","abstract_canon_sha256":"f7d3577d9926d1fadea70690862dc9958d73a92957460b1c595594644a119557"},"schema_version":"1.0"},"canonical_sha256":"3cfcb77e9303cbaf643b919fc8cd3a07961ed7d7b4058aefd02393beefc9071a","source":{"kind":"arxiv","id":"1408.5925","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.5925","created_at":"2026-05-18T02:44:15Z"},{"alias_kind":"arxiv_version","alias_value":"1408.5925v1","created_at":"2026-05-18T02:44:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.5925","created_at":"2026-05-18T02:44:15Z"},{"alias_kind":"pith_short_12","alias_value":"HT6LO7UTAPF2","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"HT6LO7UTAPF26ZB3","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"HT6LO7UT","created_at":"2026-05-18T12:28:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:HT6LO7UTAPF26ZB3SGP4RTJ2A6","target":"record","payload":{"canonical_record":{"source":{"id":"1408.5925","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2014-08-25T20:50:08Z","cross_cats_sorted":["cs.MS","physics.comp-ph"],"title_canon_sha256":"ed85b4bbde54cccf3dab78c18320b465a59ccaba6e54945684bebfae3b729683","abstract_canon_sha256":"f7d3577d9926d1fadea70690862dc9958d73a92957460b1c595594644a119557"},"schema_version":"1.0"},"canonical_sha256":"3cfcb77e9303cbaf643b919fc8cd3a07961ed7d7b4058aefd02393beefc9071a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:44:15.844432Z","signature_b64":"WHcj6JVbMvkkA4vUH47ZhlK0/JmHIVRrgudqa4zEh7dqaTLfkJmz1nAxmhVnnBYbe7Nmiwq2uOFmcZQuWh03DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3cfcb77e9303cbaf643b919fc8cd3a07961ed7d7b4058aefd02393beefc9071a","last_reissued_at":"2026-05-18T02:44:15.843867Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:44:15.843867Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1408.5925","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":"2026-05-18T02:44:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wM2q6QAvt6iGu3ncJsxqoX/fDgfD4dFdE2vJqwJ4QgLxkAkKiV9pjMHstqwqMSNW0QTP+1k/dh7d20IKXafLAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T17:19:39.343609Z"},"content_sha256":"8a231cc707d06133b0e5282ea9329eabc303330ed5e12e9b31c081facd515399","schema_version":"1.0","event_id":"sha256:8a231cc707d06133b0e5282ea9329eabc303330ed5e12e9b31c081facd515399"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:HT6LO7UTAPF26ZB3SGP4RTJ2A6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Framework for Lattice QCD Calculations on GPUs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.MS","physics.comp-ph"],"primary_cat":"hep-lat","authors_text":"B. Jo\\'o, F. T. Winter, M. A. Clark, R. G. Edwards","submitted_at":"2014-08-25T20:50:08Z","abstract_excerpt":"Computing platforms equipped with accelerators like GPUs have proven to provide great computational power. However, exploiting such platforms for existing scientific applications is not a trivial task. Current GPU programming frameworks such as CUDA C/C++ require low-level programming from the developer in order to achieve high performance code. As a result porting of applications to GPUs is typically limited to time-dominant algorithms and routines, leaving the remainder not accelerated which can open a serious Amdahl's law issue. The lattice QCD application Chroma allows to explore a differe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.5925","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":"2026-05-18T02:44:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"78jJxFyz6enpeEVNJiwwZfqLdqateoCKIs78p6NJnZ0gdoowg/S6dzF3qYn2QwyQ2jZK3/hY+ccwDaGiYcg0Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T17:19:39.344241Z"},"content_sha256":"59e76eb11ffca37eb8144efd1c9f28eb7d28a7deba226bd5112c10ba5dc6596b","schema_version":"1.0","event_id":"sha256:59e76eb11ffca37eb8144efd1c9f28eb7d28a7deba226bd5112c10ba5dc6596b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HT6LO7UTAPF26ZB3SGP4RTJ2A6/bundle.json","state_url":"https://pith.science/pith/HT6LO7UTAPF26ZB3SGP4RTJ2A6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HT6LO7UTAPF26ZB3SGP4RTJ2A6/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":"2026-06-09T17:19:39Z","links":{"resolver":"https://pith.science/pith/HT6LO7UTAPF26ZB3SGP4RTJ2A6","bundle":"https://pith.science/pith/HT6LO7UTAPF26ZB3SGP4RTJ2A6/bundle.json","state":"https://pith.science/pith/HT6LO7UTAPF26ZB3SGP4RTJ2A6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HT6LO7UTAPF26ZB3SGP4RTJ2A6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:HT6LO7UTAPF26ZB3SGP4RTJ2A6","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":"f7d3577d9926d1fadea70690862dc9958d73a92957460b1c595594644a119557","cross_cats_sorted":["cs.MS","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2014-08-25T20:50:08Z","title_canon_sha256":"ed85b4bbde54cccf3dab78c18320b465a59ccaba6e54945684bebfae3b729683"},"schema_version":"1.0","source":{"id":"1408.5925","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.5925","created_at":"2026-05-18T02:44:15Z"},{"alias_kind":"arxiv_version","alias_value":"1408.5925v1","created_at":"2026-05-18T02:44:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.5925","created_at":"2026-05-18T02:44:15Z"},{"alias_kind":"pith_short_12","alias_value":"HT6LO7UTAPF2","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"HT6LO7UTAPF26ZB3","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"HT6LO7UT","created_at":"2026-05-18T12:28:30Z"}],"graph_snapshots":[{"event_id":"sha256:59e76eb11ffca37eb8144efd1c9f28eb7d28a7deba226bd5112c10ba5dc6596b","target":"graph","created_at":"2026-05-18T02:44:15Z","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":"Computing platforms equipped with accelerators like GPUs have proven to provide great computational power. However, exploiting such platforms for existing scientific applications is not a trivial task. Current GPU programming frameworks such as CUDA C/C++ require low-level programming from the developer in order to achieve high performance code. As a result porting of applications to GPUs is typically limited to time-dominant algorithms and routines, leaving the remainder not accelerated which can open a serious Amdahl's law issue. The lattice QCD application Chroma allows to explore a differe","authors_text":"B. Jo\\'o, F. T. Winter, M. A. Clark, R. G. Edwards","cross_cats":["cs.MS","physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2014-08-25T20:50:08Z","title":"A Framework for Lattice QCD Calculations on GPUs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.5925","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":"sha256:8a231cc707d06133b0e5282ea9329eabc303330ed5e12e9b31c081facd515399","target":"record","created_at":"2026-05-18T02:44:15Z","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":"f7d3577d9926d1fadea70690862dc9958d73a92957460b1c595594644a119557","cross_cats_sorted":["cs.MS","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2014-08-25T20:50:08Z","title_canon_sha256":"ed85b4bbde54cccf3dab78c18320b465a59ccaba6e54945684bebfae3b729683"},"schema_version":"1.0","source":{"id":"1408.5925","kind":"arxiv","version":1}},"canonical_sha256":"3cfcb77e9303cbaf643b919fc8cd3a07961ed7d7b4058aefd02393beefc9071a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3cfcb77e9303cbaf643b919fc8cd3a07961ed7d7b4058aefd02393beefc9071a","first_computed_at":"2026-05-18T02:44:15.843867Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:44:15.843867Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WHcj6JVbMvkkA4vUH47ZhlK0/JmHIVRrgudqa4zEh7dqaTLfkJmz1nAxmhVnnBYbe7Nmiwq2uOFmcZQuWh03DA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:44:15.844432Z","signed_message":"canonical_sha256_bytes"},"source_id":"1408.5925","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8a231cc707d06133b0e5282ea9329eabc303330ed5e12e9b31c081facd515399","sha256:59e76eb11ffca37eb8144efd1c9f28eb7d28a7deba226bd5112c10ba5dc6596b"],"state_sha256":"f2c9626e213bf42a71ed17f8dc1bf9d7b7ace0a1b0ed5ea0fdc86508c6bfc722"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BQGUO+3t/dt1TNyoYeFgEGBPhu+LjLsHRhfvsoJucfKVYbwwMykGNlI0856+nitRk05f0x3uUM7A0LhqSuYvAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T17:19:39.347899Z","bundle_sha256":"2539b9596532800108887f129d53c6df298433988115024d8ad79d8b9948bd0d"}}