{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:66O34YGQJOPJ27QT2UWPRBF4JI","short_pith_number":"pith:66O34YGQ","canonical_record":{"source":{"id":"2011.00009","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-10-30T18:00:01Z","cross_cats_sorted":["hep-ex","nucl-th"],"title_canon_sha256":"56ec3a225cc945c514e23da935b01b966e53d0b71b842d1fb9651bcbdc00a03a","abstract_canon_sha256":"866b18b2c32b057beb497e90c78138fe0995bda01a1461b4b8029f916fab47ce"},"schema_version":"1.0"},"canonical_sha256":"f79dbe60d04b9e9d7e13d52cf884bc4a35411985e1f23f50e6f9a6a87c05a13d","source":{"kind":"arxiv","id":"2011.00009","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2011.00009","created_at":"2026-07-05T02:12:10Z"},{"alias_kind":"arxiv_version","alias_value":"2011.00009v2","created_at":"2026-07-05T02:12:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2011.00009","created_at":"2026-07-05T02:12:10Z"},{"alias_kind":"pith_short_12","alias_value":"66O34YGQJOPJ","created_at":"2026-07-05T02:12:10Z"},{"alias_kind":"pith_short_16","alias_value":"66O34YGQJOPJ27QT","created_at":"2026-07-05T02:12:10Z"},{"alias_kind":"pith_short_8","alias_value":"66O34YGQ","created_at":"2026-07-05T02:12:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:66O34YGQJOPJ27QT2UWPRBF4JI","target":"record","payload":{"canonical_record":{"source":{"id":"2011.00009","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-10-30T18:00:01Z","cross_cats_sorted":["hep-ex","nucl-th"],"title_canon_sha256":"56ec3a225cc945c514e23da935b01b966e53d0b71b842d1fb9651bcbdc00a03a","abstract_canon_sha256":"866b18b2c32b057beb497e90c78138fe0995bda01a1461b4b8029f916fab47ce"},"schema_version":"1.0"},"canonical_sha256":"f79dbe60d04b9e9d7e13d52cf884bc4a35411985e1f23f50e6f9a6a87c05a13d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:12:10.809003Z","signature_b64":"/Wr67FzWFVT0HhNWF/ECnz90CoVepTZuNkxX2iTXVneYthTmDJjVlZrFB7e8EeyIBVoZhYU1d0RI/avSzoUHDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f79dbe60d04b9e9d7e13d52cf884bc4a35411985e1f23f50e6f9a6a87c05a13d","last_reissued_at":"2026-07-05T02:12:10.808642Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:12:10.808642Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2011.00009","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":"2026-07-05T02:12:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2oBuCibr1NCxC8/U/w5bKvex7uSj7+b7GaPLirsWoQq/HaIEJzvIhbPWnyLfofhu0h6fAZLcxOO0qOCb9dSsBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T17:17:02.363301Z"},"content_sha256":"d1089c60de096e7edf0a855a11d44fedfd969fa3d85dff9997d03e26a766c0f1","schema_version":"1.0","event_id":"sha256:d1089c60de096e7edf0a855a11d44fedfd969fa3d85dff9997d03e26a766c0f1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:66O34YGQJOPJ27QT2UWPRBF4JI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Deuteron Uncertainties in the Determination of Proton PDFs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"Emanuele R. Nocera, Richard D. Ball, Rosalyn L. Pearson","submitted_at":"2020-10-30T18:00:01Z","abstract_excerpt":"We evaluate the uncertainties due to nuclear effects in global fits of proton parton distribution functions (PDFs) that utilise deep-inelastic scattering and Drell-Yan data on deuterium targets. To do this we use an iterative procedure to determine proton and deuteron PDFs simultaneously, each including the uncertainties in the other. We apply this procedure to determine the nuclear uncertainties in the SLAC, BCDMS, NMC and DYE866/NuSea fixed target deuteron data included in the NNPDF3.1 global fit. We show that the effect of the nuclear uncertainty on the proton PDFs is small, and that the in"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2011.00009","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/2011.00009/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":"2026-07-05T02:12:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S5qUvc7YKGwLV3U0tT0/jDyhWh4Vvo3fWBpE4y4uj84uzUPLEe5zTGzqeR5edHiT0B3uMXsn5XjjQnZBa/UPBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T17:17:02.364187Z"},"content_sha256":"e93886febb4cf1caae3d2b90865e655b7b52749350b9ee62dd02fef423bb9fb5","schema_version":"1.0","event_id":"sha256:e93886febb4cf1caae3d2b90865e655b7b52749350b9ee62dd02fef423bb9fb5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/66O34YGQJOPJ27QT2UWPRBF4JI/bundle.json","state_url":"https://pith.science/pith/66O34YGQJOPJ27QT2UWPRBF4JI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/66O34YGQJOPJ27QT2UWPRBF4JI/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":"2026-08-09T17:17:02Z","links":{"resolver":"https://pith.science/pith/66O34YGQJOPJ27QT2UWPRBF4JI","bundle":"https://pith.science/pith/66O34YGQJOPJ27QT2UWPRBF4JI/bundle.json","state":"https://pith.science/pith/66O34YGQJOPJ27QT2UWPRBF4JI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/66O34YGQJOPJ27QT2UWPRBF4JI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:66O34YGQJOPJ27QT2UWPRBF4JI","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":"866b18b2c32b057beb497e90c78138fe0995bda01a1461b4b8029f916fab47ce","cross_cats_sorted":["hep-ex","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-10-30T18:00:01Z","title_canon_sha256":"56ec3a225cc945c514e23da935b01b966e53d0b71b842d1fb9651bcbdc00a03a"},"schema_version":"1.0","source":{"id":"2011.00009","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2011.00009","created_at":"2026-07-05T02:12:10Z"},{"alias_kind":"arxiv_version","alias_value":"2011.00009v2","created_at":"2026-07-05T02:12:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2011.00009","created_at":"2026-07-05T02:12:10Z"},{"alias_kind":"pith_short_12","alias_value":"66O34YGQJOPJ","created_at":"2026-07-05T02:12:10Z"},{"alias_kind":"pith_short_16","alias_value":"66O34YGQJOPJ27QT","created_at":"2026-07-05T02:12:10Z"},{"alias_kind":"pith_short_8","alias_value":"66O34YGQ","created_at":"2026-07-05T02:12:10Z"}],"graph_snapshots":[{"event_id":"sha256:e93886febb4cf1caae3d2b90865e655b7b52749350b9ee62dd02fef423bb9fb5","target":"graph","created_at":"2026-07-05T02:12:10Z","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/2011.00009/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We evaluate the uncertainties due to nuclear effects in global fits of proton parton distribution functions (PDFs) that utilise deep-inelastic scattering and Drell-Yan data on deuterium targets. To do this we use an iterative procedure to determine proton and deuteron PDFs simultaneously, each including the uncertainties in the other. We apply this procedure to determine the nuclear uncertainties in the SLAC, BCDMS, NMC and DYE866/NuSea fixed target deuteron data included in the NNPDF3.1 global fit. We show that the effect of the nuclear uncertainty on the proton PDFs is small, and that the in","authors_text":"Emanuele R. Nocera, Richard D. Ball, Rosalyn L. Pearson","cross_cats":["hep-ex","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-10-30T18:00:01Z","title":"Deuteron Uncertainties in the Determination of Proton PDFs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2011.00009","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:d1089c60de096e7edf0a855a11d44fedfd969fa3d85dff9997d03e26a766c0f1","target":"record","created_at":"2026-07-05T02:12:10Z","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":"866b18b2c32b057beb497e90c78138fe0995bda01a1461b4b8029f916fab47ce","cross_cats_sorted":["hep-ex","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-10-30T18:00:01Z","title_canon_sha256":"56ec3a225cc945c514e23da935b01b966e53d0b71b842d1fb9651bcbdc00a03a"},"schema_version":"1.0","source":{"id":"2011.00009","kind":"arxiv","version":2}},"canonical_sha256":"f79dbe60d04b9e9d7e13d52cf884bc4a35411985e1f23f50e6f9a6a87c05a13d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f79dbe60d04b9e9d7e13d52cf884bc4a35411985e1f23f50e6f9a6a87c05a13d","first_computed_at":"2026-07-05T02:12:10.808642Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:12:10.808642Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/Wr67FzWFVT0HhNWF/ECnz90CoVepTZuNkxX2iTXVneYthTmDJjVlZrFB7e8EeyIBVoZhYU1d0RI/avSzoUHDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:12:10.809003Z","signed_message":"canonical_sha256_bytes"},"source_id":"2011.00009","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d1089c60de096e7edf0a855a11d44fedfd969fa3d85dff9997d03e26a766c0f1","sha256:e93886febb4cf1caae3d2b90865e655b7b52749350b9ee62dd02fef423bb9fb5"],"state_sha256":"0e2ba70887ff657d25d7b87a44fae64d5605943f2f0bc352f3b3cfa41130a66f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"95gbdM5X214rI8ko9mTHFNSOZ6iU9ElzBaQnl7CUA0CNgpZMZZ1dWhXm8MgW2bJ5J6WuIUs9bZEB3GFX4ElWCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T17:17:02.371178Z","bundle_sha256":"e286d18e9e9dd55c23a8776990075d37a2459b7b28311bf380eb6cca7b401f7f"}}