{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:MNFVEJFWFEKDZ4A3N4DLC3JORA","short_pith_number":"pith:MNFVEJFW","canonical_record":{"source":{"id":"1205.6108","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-05-28T13:24:49Z","cross_cats_sorted":[],"title_canon_sha256":"e1c218efd9b86077201b2d41043d173b10673732e0f3d975759b14a4bb258f92","abstract_canon_sha256":"a5862d4afbdcf97b11a2033024e8f04ced4ad9e6622c9d8b2d0931ca4f56eb42"},"schema_version":"1.0"},"canonical_sha256":"634b5224b629143cf01b6f06b16d2e880e029ffa19de345ea5c863d46f786137","source":{"kind":"arxiv","id":"1205.6108","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1205.6108","created_at":"2026-05-18T01:57:16Z"},{"alias_kind":"arxiv_version","alias_value":"1205.6108v1","created_at":"2026-05-18T01:57:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.6108","created_at":"2026-05-18T01:57:16Z"},{"alias_kind":"pith_short_12","alias_value":"MNFVEJFWFEKD","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"MNFVEJFWFEKDZ4A3","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"MNFVEJFW","created_at":"2026-05-18T12:27:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:MNFVEJFWFEKDZ4A3N4DLC3JORA","target":"record","payload":{"canonical_record":{"source":{"id":"1205.6108","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-05-28T13:24:49Z","cross_cats_sorted":[],"title_canon_sha256":"e1c218efd9b86077201b2d41043d173b10673732e0f3d975759b14a4bb258f92","abstract_canon_sha256":"a5862d4afbdcf97b11a2033024e8f04ced4ad9e6622c9d8b2d0931ca4f56eb42"},"schema_version":"1.0"},"canonical_sha256":"634b5224b629143cf01b6f06b16d2e880e029ffa19de345ea5c863d46f786137","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:57:16.603480Z","signature_b64":"jundaean0aAldpAXUu8ypToKK3fUb9eRrIg7ic69CHPpaxnEtJSB4kDAH/m/28tQK05Fgs+H1TkLYvUbXeSyCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"634b5224b629143cf01b6f06b16d2e880e029ffa19de345ea5c863d46f786137","last_reissued_at":"2026-05-18T01:57:16.602912Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:57:16.602912Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1205.6108","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":"2026-05-18T01:57:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MuSWx7UfPcpEeCBvIZoCoFkYchjbLQQ1u9AJycj3BMdE7LWTLVUJQ/KgdVSgckUg97a4piZzcMnvk43JWea0DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T14:31:05.729857Z"},"content_sha256":"5282a566100efdda041fc52917ad22477445338459aa122164ff8227f6faa5b9","schema_version":"1.0","event_id":"sha256:5282a566100efdda041fc52917ad22477445338459aa122164ff8227f6faa5b9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:MNFVEJFWFEKDZ4A3N4DLC3JORA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Drell-Yan as a probe of small x partons at the LHC","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A. D. Martin, E. G. de Oliveira, M. G. Ryskin","submitted_at":"2012-05-28T13:24:49Z","abstract_excerpt":"The predictions of Drell-Yan production of low-mass, lepton-pairs, at high rapidity at the LHC, are known to depend sensitively on the choice of factorization and renormalization scales. We show how this sensitivity can be greatly reduced by fixing the factorization scale of the LO contribution based on the known NLO matrix element, so that observations of this process at the LHC can make direct measurements of parton distribution functions in the low x domain; x less than about 10^{-4}."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.6108","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":"2026-05-18T01:57:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r8tVZwb7+WQKGb92ZFsvV+gT+JzeUlDzwJSEzsKwE9vuP4GsnTwdz8KG6Ib/S+ypyHna5xuPRkaE/dTF80EhAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T14:31:05.730501Z"},"content_sha256":"df3834251506d81cf427adaa9b528deaf8e2e76b03c9c9be1c1a82273002cdc6","schema_version":"1.0","event_id":"sha256:df3834251506d81cf427adaa9b528deaf8e2e76b03c9c9be1c1a82273002cdc6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MNFVEJFWFEKDZ4A3N4DLC3JORA/bundle.json","state_url":"https://pith.science/pith/MNFVEJFWFEKDZ4A3N4DLC3JORA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MNFVEJFWFEKDZ4A3N4DLC3JORA/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":"2026-06-02T14:31:05Z","links":{"resolver":"https://pith.science/pith/MNFVEJFWFEKDZ4A3N4DLC3JORA","bundle":"https://pith.science/pith/MNFVEJFWFEKDZ4A3N4DLC3JORA/bundle.json","state":"https://pith.science/pith/MNFVEJFWFEKDZ4A3N4DLC3JORA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MNFVEJFWFEKDZ4A3N4DLC3JORA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:MNFVEJFWFEKDZ4A3N4DLC3JORA","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":"a5862d4afbdcf97b11a2033024e8f04ced4ad9e6622c9d8b2d0931ca4f56eb42","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-05-28T13:24:49Z","title_canon_sha256":"e1c218efd9b86077201b2d41043d173b10673732e0f3d975759b14a4bb258f92"},"schema_version":"1.0","source":{"id":"1205.6108","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1205.6108","created_at":"2026-05-18T01:57:16Z"},{"alias_kind":"arxiv_version","alias_value":"1205.6108v1","created_at":"2026-05-18T01:57:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.6108","created_at":"2026-05-18T01:57:16Z"},{"alias_kind":"pith_short_12","alias_value":"MNFVEJFWFEKD","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"MNFVEJFWFEKDZ4A3","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"MNFVEJFW","created_at":"2026-05-18T12:27:14Z"}],"graph_snapshots":[{"event_id":"sha256:df3834251506d81cf427adaa9b528deaf8e2e76b03c9c9be1c1a82273002cdc6","target":"graph","created_at":"2026-05-18T01:57:16Z","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"},"paper":{"abstract_excerpt":"The predictions of Drell-Yan production of low-mass, lepton-pairs, at high rapidity at the LHC, are known to depend sensitively on the choice of factorization and renormalization scales. We show how this sensitivity can be greatly reduced by fixing the factorization scale of the LO contribution based on the known NLO matrix element, so that observations of this process at the LHC can make direct measurements of parton distribution functions in the low x domain; x less than about 10^{-4}.","authors_text":"A. D. Martin, E. G. de Oliveira, M. G. Ryskin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-05-28T13:24:49Z","title":"Drell-Yan as a probe of small x partons at the LHC"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.6108","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":"sha256:5282a566100efdda041fc52917ad22477445338459aa122164ff8227f6faa5b9","target":"record","created_at":"2026-05-18T01:57:16Z","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":"a5862d4afbdcf97b11a2033024e8f04ced4ad9e6622c9d8b2d0931ca4f56eb42","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-05-28T13:24:49Z","title_canon_sha256":"e1c218efd9b86077201b2d41043d173b10673732e0f3d975759b14a4bb258f92"},"schema_version":"1.0","source":{"id":"1205.6108","kind":"arxiv","version":1}},"canonical_sha256":"634b5224b629143cf01b6f06b16d2e880e029ffa19de345ea5c863d46f786137","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"634b5224b629143cf01b6f06b16d2e880e029ffa19de345ea5c863d46f786137","first_computed_at":"2026-05-18T01:57:16.602912Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:57:16.602912Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jundaean0aAldpAXUu8ypToKK3fUb9eRrIg7ic69CHPpaxnEtJSB4kDAH/m/28tQK05Fgs+H1TkLYvUbXeSyCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:57:16.603480Z","signed_message":"canonical_sha256_bytes"},"source_id":"1205.6108","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5282a566100efdda041fc52917ad22477445338459aa122164ff8227f6faa5b9","sha256:df3834251506d81cf427adaa9b528deaf8e2e76b03c9c9be1c1a82273002cdc6"],"state_sha256":"575918f9b36a3c36dc634b99b27ce66e27adf03c4ba51699e9844bfc3f4367b2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HZiojXUWxh0tc/WNdMbfYJiCNQCLtLXXfsYdxpQ8sVFcJYQkRoYH0VAAPPfR8pNnNSd78AORxF6M2dV135IYCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T14:31:05.733609Z","bundle_sha256":"fd23e749a5313fbf1c6a2e69259925ea6adab5e702f799d47ad2011ec41916ef"}}