{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:XDLNUUSAXHFC262LTYD66D4HQZ","short_pith_number":"pith:XDLNUUSA","canonical_record":{"source":{"id":"2212.12569","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-lat","submitted_at":"2022-12-23T19:52:14Z","cross_cats_sorted":["hep-ex","hep-ph","nucl-ex","nucl-th"],"title_canon_sha256":"107e5ac80f7fd0b5c2016164e10c2c7c249d29259f4027b835b093e71c96ba12","abstract_canon_sha256":"13e08d41208f46472c3e36725b8b579a08d09c1293eaefbeed4072d052da3fb0"},"schema_version":"1.0"},"canonical_sha256":"b8d6da5240b9ca2d7b4b9e07ef0f8786632885130db5c8dc6218d1745ea33ee8","source":{"kind":"arxiv","id":"2212.12569","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2212.12569","created_at":"2026-07-05T06:08:16Z"},{"alias_kind":"arxiv_version","alias_value":"2212.12569v2","created_at":"2026-07-05T06:08:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.12569","created_at":"2026-07-05T06:08:16Z"},{"alias_kind":"pith_short_12","alias_value":"XDLNUUSAXHFC","created_at":"2026-07-05T06:08:16Z"},{"alias_kind":"pith_short_16","alias_value":"XDLNUUSAXHFC262L","created_at":"2026-07-05T06:08:16Z"},{"alias_kind":"pith_short_8","alias_value":"XDLNUUSA","created_at":"2026-07-05T06:08:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:XDLNUUSAXHFC262LTYD66D4HQZ","target":"record","payload":{"canonical_record":{"source":{"id":"2212.12569","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-lat","submitted_at":"2022-12-23T19:52:14Z","cross_cats_sorted":["hep-ex","hep-ph","nucl-ex","nucl-th"],"title_canon_sha256":"107e5ac80f7fd0b5c2016164e10c2c7c249d29259f4027b835b093e71c96ba12","abstract_canon_sha256":"13e08d41208f46472c3e36725b8b579a08d09c1293eaefbeed4072d052da3fb0"},"schema_version":"1.0"},"canonical_sha256":"b8d6da5240b9ca2d7b4b9e07ef0f8786632885130db5c8dc6218d1745ea33ee8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:08:16.350973Z","signature_b64":"P6hhF4zpXyJ7IVCxKw64tlAM2OvPm81skf40jb98PLtUcIJTuW0bOgZFNzxHGwLymYJ5iiN3/1fLddmdi79zAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b8d6da5240b9ca2d7b4b9e07ef0f8786632885130db5c8dc6218d1745ea33ee8","last_reissued_at":"2026-07-05T06:08:16.350476Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:08:16.350476Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2212.12569","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T06:08:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5xnv0Zx1/OuuzrvV376uhKsQUewKOF/CgVVGTvwr2v60zWbSMpcj54ZhFTrBRD7FFpMtOpNmKcchYNmvjDX3BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T09:15:44.675242Z"},"content_sha256":"53c83a12639582bbedc7cf68766de5153188dac16a55e190b75c966f8448aa18","schema_version":"1.0","event_id":"sha256:53c83a12639582bbedc7cf68766de5153188dac16a55e190b75c966f8448aa18"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:XDLNUUSAXHFC262LTYD66D4HQZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Unpolarized proton PDF at NNLO from lattice QCD with physical quark masses","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex","hep-ph","nucl-ex","nucl-th"],"primary_cat":"hep-lat","authors_text":"Andrew D. Hanlon, Jack Holligan, Nikhil Karthik, Peter Petreczky, Sergey Syritsyn, Swagato Mukherjee, Xiang Gao, Yong Zhao","submitted_at":"2022-12-23T19:52:14Z","abstract_excerpt":"We present a lattice QCD calculation of the unpolarized isovector quark parton distribution function (PDF) of the proton utilizing a perturbative matching at next-to-next-to-leading-order (NNLO). The calculations are carried out using a single ensemble of gauge configurations generated with $N_f = 2 + 1$ highly-improved staggered quarks with physical masses and a lattice spacing of $a = 0.076$ fm. We use one iteration of hypercubic smearing on these gauge configurations, and the resulting smeared configurations are then used for all aspects of the subsequent calculation. For the valence quarks"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.12569","kind":"arxiv","version":2},"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/2212.12569/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":"2026-07-05T06:08:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MOM04lqK8AR3HR08OMSYF1dc0LS2J0qHSspOWhdE7N+Xiq9hjGORFXmEgkotQv2QrpN5lWsvon8bqNKZ6Z8GCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T09:15:44.675575Z"},"content_sha256":"c40692be733dcd2a94ea8e517c6fc298c8300ac104b8e9f8130a1dce5db78fbf","schema_version":"1.0","event_id":"sha256:c40692be733dcd2a94ea8e517c6fc298c8300ac104b8e9f8130a1dce5db78fbf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XDLNUUSAXHFC262LTYD66D4HQZ/bundle.json","state_url":"https://pith.science/pith/XDLNUUSAXHFC262LTYD66D4HQZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XDLNUUSAXHFC262LTYD66D4HQZ/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":"2026-08-21T09:15:44Z","links":{"resolver":"https://pith.science/pith/XDLNUUSAXHFC262LTYD66D4HQZ","bundle":"https://pith.science/pith/XDLNUUSAXHFC262LTYD66D4HQZ/bundle.json","state":"https://pith.science/pith/XDLNUUSAXHFC262LTYD66D4HQZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XDLNUUSAXHFC262LTYD66D4HQZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:XDLNUUSAXHFC262LTYD66D4HQZ","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":"13e08d41208f46472c3e36725b8b579a08d09c1293eaefbeed4072d052da3fb0","cross_cats_sorted":["hep-ex","hep-ph","nucl-ex","nucl-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-lat","submitted_at":"2022-12-23T19:52:14Z","title_canon_sha256":"107e5ac80f7fd0b5c2016164e10c2c7c249d29259f4027b835b093e71c96ba12"},"schema_version":"1.0","source":{"id":"2212.12569","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2212.12569","created_at":"2026-07-05T06:08:16Z"},{"alias_kind":"arxiv_version","alias_value":"2212.12569v2","created_at":"2026-07-05T06:08:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.12569","created_at":"2026-07-05T06:08:16Z"},{"alias_kind":"pith_short_12","alias_value":"XDLNUUSAXHFC","created_at":"2026-07-05T06:08:16Z"},{"alias_kind":"pith_short_16","alias_value":"XDLNUUSAXHFC262L","created_at":"2026-07-05T06:08:16Z"},{"alias_kind":"pith_short_8","alias_value":"XDLNUUSA","created_at":"2026-07-05T06:08:16Z"}],"graph_snapshots":[{"event_id":"sha256:c40692be733dcd2a94ea8e517c6fc298c8300ac104b8e9f8130a1dce5db78fbf","target":"graph","created_at":"2026-07-05T06:08:16Z","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/2212.12569/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a lattice QCD calculation of the unpolarized isovector quark parton distribution function (PDF) of the proton utilizing a perturbative matching at next-to-next-to-leading-order (NNLO). The calculations are carried out using a single ensemble of gauge configurations generated with $N_f = 2 + 1$ highly-improved staggered quarks with physical masses and a lattice spacing of $a = 0.076$ fm. We use one iteration of hypercubic smearing on these gauge configurations, and the resulting smeared configurations are then used for all aspects of the subsequent calculation. For the valence quarks","authors_text":"Andrew D. Hanlon, Jack Holligan, Nikhil Karthik, Peter Petreczky, Sergey Syritsyn, Swagato Mukherjee, Xiang Gao, Yong Zhao","cross_cats":["hep-ex","hep-ph","nucl-ex","nucl-th"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-lat","submitted_at":"2022-12-23T19:52:14Z","title":"Unpolarized proton PDF at NNLO from lattice QCD with physical quark masses"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.12569","kind":"arxiv","version":2},"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":"sha256:53c83a12639582bbedc7cf68766de5153188dac16a55e190b75c966f8448aa18","target":"record","created_at":"2026-07-05T06:08:16Z","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":"13e08d41208f46472c3e36725b8b579a08d09c1293eaefbeed4072d052da3fb0","cross_cats_sorted":["hep-ex","hep-ph","nucl-ex","nucl-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-lat","submitted_at":"2022-12-23T19:52:14Z","title_canon_sha256":"107e5ac80f7fd0b5c2016164e10c2c7c249d29259f4027b835b093e71c96ba12"},"schema_version":"1.0","source":{"id":"2212.12569","kind":"arxiv","version":2}},"canonical_sha256":"b8d6da5240b9ca2d7b4b9e07ef0f8786632885130db5c8dc6218d1745ea33ee8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b8d6da5240b9ca2d7b4b9e07ef0f8786632885130db5c8dc6218d1745ea33ee8","first_computed_at":"2026-07-05T06:08:16.350476Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:08:16.350476Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"P6hhF4zpXyJ7IVCxKw64tlAM2OvPm81skf40jb98PLtUcIJTuW0bOgZFNzxHGwLymYJ5iiN3/1fLddmdi79zAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T06:08:16.350973Z","signed_message":"canonical_sha256_bytes"},"source_id":"2212.12569","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:53c83a12639582bbedc7cf68766de5153188dac16a55e190b75c966f8448aa18","sha256:c40692be733dcd2a94ea8e517c6fc298c8300ac104b8e9f8130a1dce5db78fbf"],"state_sha256":"5471a3dca49362d56c31629dad74772651bb6c7631ae24405c56add37100d20e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m++0dXAZZVDK/5Bd49/FMdHj7mLbzqVs+Q9FnkmPjQMv+NV/PBrWH03lxwjk6PE4uSNZzbnCiyiRI1NfpPZ6Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T09:15:44.680050Z","bundle_sha256":"e91fb5c4ccf61853cb4135ee400c59ec25932d3202960e4f16450128b390a5eb"}}