{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:5HR7AUQQDY7HVMQ2FHGZJBTHNV","short_pith_number":"pith:5HR7AUQQ","canonical_record":{"source":{"id":"1612.02750","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2016-12-08T18:17:03Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"92ee82a831b98c75981d3d445ad750fbaec68f2e4f47ab6229ba859c8f212df8","abstract_canon_sha256":"599e33641cfc4fecd33b5960d838723568d47e77f09303ab4566460d68c50e81"},"schema_version":"1.0"},"canonical_sha256":"e9e3f052101e3e7ab21a29cd9486676d78bb4e5d29c58dd53ee199cbfc88a6d7","source":{"kind":"arxiv","id":"1612.02750","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.02750","created_at":"2026-05-18T00:55:29Z"},{"alias_kind":"arxiv_version","alias_value":"1612.02750v1","created_at":"2026-05-18T00:55:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.02750","created_at":"2026-05-18T00:55:29Z"},{"alias_kind":"pith_short_12","alias_value":"5HR7AUQQDY7H","created_at":"2026-05-18T12:30:01Z"},{"alias_kind":"pith_short_16","alias_value":"5HR7AUQQDY7HVMQ2","created_at":"2026-05-18T12:30:01Z"},{"alias_kind":"pith_short_8","alias_value":"5HR7AUQQ","created_at":"2026-05-18T12:30:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:5HR7AUQQDY7HVMQ2FHGZJBTHNV","target":"record","payload":{"canonical_record":{"source":{"id":"1612.02750","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2016-12-08T18:17:03Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"92ee82a831b98c75981d3d445ad750fbaec68f2e4f47ab6229ba859c8f212df8","abstract_canon_sha256":"599e33641cfc4fecd33b5960d838723568d47e77f09303ab4566460d68c50e81"},"schema_version":"1.0"},"canonical_sha256":"e9e3f052101e3e7ab21a29cd9486676d78bb4e5d29c58dd53ee199cbfc88a6d7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:55:29.219614Z","signature_b64":"lnvw8DCVjrxOFv0N3TPF/JbmvwXPZk/ERiRWX1oeAjhmpamP6bI04Zs2+8Zw8XN6uUZHFNpigmSfGwxVtZlxBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e9e3f052101e3e7ab21a29cd9486676d78bb4e5d29c58dd53ee199cbfc88a6d7","last_reissued_at":"2026-05-18T00:55:29.218993Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:55:29.218993Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1612.02750","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":"2026-05-18T00:55:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n2QMlPpqPoU5EBQfdwCSWDZMyI5YdZa8a6nTyKGsKCX/a3vD7Jvn7t2d/Ute9tXqyDnAJalM+fzGTnrtq1vAAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T08:50:32.809021Z"},"content_sha256":"7b34b3a2cd7b9e06620b65c584c65310a2686b0ee9157bcae933506ed798c4b3","schema_version":"1.0","event_id":"sha256:7b34b3a2cd7b9e06620b65c584c65310a2686b0ee9157bcae933506ed798c4b3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:5HR7AUQQDY7HVMQ2FHGZJBTHNV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"QEX: a framework for lattice field theories","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.comp-ph"],"primary_cat":"hep-lat","authors_text":"James C. Osborn, Xiao-Yong Jin","submitted_at":"2016-12-08T18:17:03Z","abstract_excerpt":"We present a new software framework for simulating lattice field theories. It features an intuitive programming interface, while simultaneously achieving high performance supercomputing, all in one programming language, Nim. With a macro system based on its abstract syntax tree, the language enables us to check and optimize our code at compile time. It also allows us to code intrinsics that map directly to machine instructions, and generates efficient native code. We show how we use Nim's metaprogramming features in our code, and present the current status of the code and future plans."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.02750","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":"2026-05-18T00:55:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YipIDn0h3cRNTCaeHvYE5N7gC+QESmOtiK15xS3Ers92RmZIm4X543hcOrE7u2h9M5yU+Ozwb2udFrGYdeaVAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T08:50:32.809774Z"},"content_sha256":"7dbb4ea9a132d1a99e5400dce629d453f43519acb1b513bc06991849fa4dfd36","schema_version":"1.0","event_id":"sha256:7dbb4ea9a132d1a99e5400dce629d453f43519acb1b513bc06991849fa4dfd36"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5HR7AUQQDY7HVMQ2FHGZJBTHNV/bundle.json","state_url":"https://pith.science/pith/5HR7AUQQDY7HVMQ2FHGZJBTHNV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5HR7AUQQDY7HVMQ2FHGZJBTHNV/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":"2026-06-11T08:50:32Z","links":{"resolver":"https://pith.science/pith/5HR7AUQQDY7HVMQ2FHGZJBTHNV","bundle":"https://pith.science/pith/5HR7AUQQDY7HVMQ2FHGZJBTHNV/bundle.json","state":"https://pith.science/pith/5HR7AUQQDY7HVMQ2FHGZJBTHNV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5HR7AUQQDY7HVMQ2FHGZJBTHNV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:5HR7AUQQDY7HVMQ2FHGZJBTHNV","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":"599e33641cfc4fecd33b5960d838723568d47e77f09303ab4566460d68c50e81","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2016-12-08T18:17:03Z","title_canon_sha256":"92ee82a831b98c75981d3d445ad750fbaec68f2e4f47ab6229ba859c8f212df8"},"schema_version":"1.0","source":{"id":"1612.02750","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.02750","created_at":"2026-05-18T00:55:29Z"},{"alias_kind":"arxiv_version","alias_value":"1612.02750v1","created_at":"2026-05-18T00:55:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.02750","created_at":"2026-05-18T00:55:29Z"},{"alias_kind":"pith_short_12","alias_value":"5HR7AUQQDY7H","created_at":"2026-05-18T12:30:01Z"},{"alias_kind":"pith_short_16","alias_value":"5HR7AUQQDY7HVMQ2","created_at":"2026-05-18T12:30:01Z"},{"alias_kind":"pith_short_8","alias_value":"5HR7AUQQ","created_at":"2026-05-18T12:30:01Z"}],"graph_snapshots":[{"event_id":"sha256:7dbb4ea9a132d1a99e5400dce629d453f43519acb1b513bc06991849fa4dfd36","target":"graph","created_at":"2026-05-18T00:55:29Z","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 present a new software framework for simulating lattice field theories. It features an intuitive programming interface, while simultaneously achieving high performance supercomputing, all in one programming language, Nim. With a macro system based on its abstract syntax tree, the language enables us to check and optimize our code at compile time. It also allows us to code intrinsics that map directly to machine instructions, and generates efficient native code. We show how we use Nim's metaprogramming features in our code, and present the current status of the code and future plans.","authors_text":"James C. Osborn, Xiao-Yong Jin","cross_cats":["physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2016-12-08T18:17:03Z","title":"QEX: a framework for lattice field theories"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.02750","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":"sha256:7b34b3a2cd7b9e06620b65c584c65310a2686b0ee9157bcae933506ed798c4b3","target":"record","created_at":"2026-05-18T00:55:29Z","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":"599e33641cfc4fecd33b5960d838723568d47e77f09303ab4566460d68c50e81","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2016-12-08T18:17:03Z","title_canon_sha256":"92ee82a831b98c75981d3d445ad750fbaec68f2e4f47ab6229ba859c8f212df8"},"schema_version":"1.0","source":{"id":"1612.02750","kind":"arxiv","version":1}},"canonical_sha256":"e9e3f052101e3e7ab21a29cd9486676d78bb4e5d29c58dd53ee199cbfc88a6d7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e9e3f052101e3e7ab21a29cd9486676d78bb4e5d29c58dd53ee199cbfc88a6d7","first_computed_at":"2026-05-18T00:55:29.218993Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:55:29.218993Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lnvw8DCVjrxOFv0N3TPF/JbmvwXPZk/ERiRWX1oeAjhmpamP6bI04Zs2+8Zw8XN6uUZHFNpigmSfGwxVtZlxBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:55:29.219614Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.02750","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7b34b3a2cd7b9e06620b65c584c65310a2686b0ee9157bcae933506ed798c4b3","sha256:7dbb4ea9a132d1a99e5400dce629d453f43519acb1b513bc06991849fa4dfd36"],"state_sha256":"783becad051940caead3531f2317c91d49da61e860dd7b28df435f0d27d93d31"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+MVp+WKgVgsLhBG664RJThx/83HEnF3sdAgOHS2Q9PxhKCMcK62NnWtlSoXuxCKPWQ6PwHcVYLp9+onKB+fOCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T08:50:32.814088Z","bundle_sha256":"bcffe4fd1fc981c88ab119f0810e63462770f99ea6c1d8bc57a8c90a3f41dcb6"}}