{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:USTMP6SGNMYKMBSZVNMB2EUKKD","short_pith_number":"pith:USTMP6SG","canonical_record":{"source":{"id":"1508.06621","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-08-26T19:38:24Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"6f4e12e95d75a0925af6e8df2e95f165997f2211f93e97eace5fdc0926b91ace","abstract_canon_sha256":"6ab43c3bcf47ded8340f214ea14517ea06cc528e8497ebaf1bd6ff0ac66a8c21"},"schema_version":"1.0"},"canonical_sha256":"a4a6c7fa466b30a60659ab581d128a50f46eafd484b59f0fc1b2d2bbc04986c2","source":{"kind":"arxiv","id":"1508.06621","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.06621","created_at":"2026-05-18T01:34:42Z"},{"alias_kind":"arxiv_version","alias_value":"1508.06621v1","created_at":"2026-05-18T01:34:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.06621","created_at":"2026-05-18T01:34:42Z"},{"alias_kind":"pith_short_12","alias_value":"USTMP6SGNMYK","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"USTMP6SGNMYKMBSZ","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"USTMP6SG","created_at":"2026-05-18T12:29:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:USTMP6SGNMYKMBSZVNMB2EUKKD","target":"record","payload":{"canonical_record":{"source":{"id":"1508.06621","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-08-26T19:38:24Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"6f4e12e95d75a0925af6e8df2e95f165997f2211f93e97eace5fdc0926b91ace","abstract_canon_sha256":"6ab43c3bcf47ded8340f214ea14517ea06cc528e8497ebaf1bd6ff0ac66a8c21"},"schema_version":"1.0"},"canonical_sha256":"a4a6c7fa466b30a60659ab581d128a50f46eafd484b59f0fc1b2d2bbc04986c2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:34:42.530209Z","signature_b64":"lmWn/w2l7v1SxdfQP9OPILhHZHo6C30t1xBK1488AQeMo987k7R1A+m2VBnhVIU9lDOA8rXQioO7XZNk9Z34Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a4a6c7fa466b30a60659ab581d128a50f46eafd484b59f0fc1b2d2bbc04986c2","last_reissued_at":"2026-05-18T01:34:42.529624Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:34:42.529624Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1508.06621","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":"2026-05-18T01:34:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uPOeJ7xPV4w2QF3SK9YTJtXMWzuVOZUGIiVdEFMErHoAX1xHEVsunxR99j2TjMuuKlBPpDfyH6IICvx/6TgADQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T11:00:35.046936Z"},"content_sha256":"d9f4ede13376a74a2397e208572834ea7e3d254611cee23c8e6fc3dce9c9a580","schema_version":"1.0","event_id":"sha256:d9f4ede13376a74a2397e208572834ea7e3d254611cee23c8e6fc3dce9c9a580"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:USTMP6SGNMYKMBSZVNMB2EUKKD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Effect of Final HERA inclusive Cross Section Data on MMHT2014 PDFs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"A.D. Martin, L.A. Harland-Lang, P. Motylinski, R.S. Thorne","submitted_at":"2015-08-26T19:38:24Z","abstract_excerpt":"We investigate the effect of including the HERA run I + II combined cross section data on the MMHT2014 PDFs. We present the fit quality within the context of the global fit and when only the HERA data are included. We examine the changes in both the central values and uncertainties in the PDFs. We find that the prediction for the data is good, and only relatively small improvements in $\\chi^2$ and changes in the PDFs are obtained with a refit at both NLO and NNLO. PDF uncertainties are slightly reduced. There is a small dependence of the fit quality on the value of $Q^2_{\\min}$."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.06621","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":"2026-05-18T01:34:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"o2X+ggE6N/+1A8YnbP0u1VHb628Jvd+GeEg8AjWI3I9HeO9fNLZH/CaREKHfw44Af+Xd/ChuQABFLPGBEgSzDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T11:00:35.047623Z"},"content_sha256":"b33a3bf7314f069edfa8b2dc096a5fe530adae6a4a3efaeb8674cc52f94f9cbd","schema_version":"1.0","event_id":"sha256:b33a3bf7314f069edfa8b2dc096a5fe530adae6a4a3efaeb8674cc52f94f9cbd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/USTMP6SGNMYKMBSZVNMB2EUKKD/bundle.json","state_url":"https://pith.science/pith/USTMP6SGNMYKMBSZVNMB2EUKKD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/USTMP6SGNMYKMBSZVNMB2EUKKD/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":"2026-05-25T11:00:35Z","links":{"resolver":"https://pith.science/pith/USTMP6SGNMYKMBSZVNMB2EUKKD","bundle":"https://pith.science/pith/USTMP6SGNMYKMBSZVNMB2EUKKD/bundle.json","state":"https://pith.science/pith/USTMP6SGNMYKMBSZVNMB2EUKKD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/USTMP6SGNMYKMBSZVNMB2EUKKD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:USTMP6SGNMYKMBSZVNMB2EUKKD","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":"6ab43c3bcf47ded8340f214ea14517ea06cc528e8497ebaf1bd6ff0ac66a8c21","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-08-26T19:38:24Z","title_canon_sha256":"6f4e12e95d75a0925af6e8df2e95f165997f2211f93e97eace5fdc0926b91ace"},"schema_version":"1.0","source":{"id":"1508.06621","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.06621","created_at":"2026-05-18T01:34:42Z"},{"alias_kind":"arxiv_version","alias_value":"1508.06621v1","created_at":"2026-05-18T01:34:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.06621","created_at":"2026-05-18T01:34:42Z"},{"alias_kind":"pith_short_12","alias_value":"USTMP6SGNMYK","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"USTMP6SGNMYKMBSZ","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"USTMP6SG","created_at":"2026-05-18T12:29:44Z"}],"graph_snapshots":[{"event_id":"sha256:b33a3bf7314f069edfa8b2dc096a5fe530adae6a4a3efaeb8674cc52f94f9cbd","target":"graph","created_at":"2026-05-18T01:34:42Z","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 investigate the effect of including the HERA run I + II combined cross section data on the MMHT2014 PDFs. We present the fit quality within the context of the global fit and when only the HERA data are included. We examine the changes in both the central values and uncertainties in the PDFs. We find that the prediction for the data is good, and only relatively small improvements in $\\chi^2$ and changes in the PDFs are obtained with a refit at both NLO and NNLO. PDF uncertainties are slightly reduced. There is a small dependence of the fit quality on the value of $Q^2_{\\min}$.","authors_text":"A.D. Martin, L.A. Harland-Lang, P. Motylinski, R.S. Thorne","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-08-26T19:38:24Z","title":"The Effect of Final HERA inclusive Cross Section Data on MMHT2014 PDFs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.06621","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:d9f4ede13376a74a2397e208572834ea7e3d254611cee23c8e6fc3dce9c9a580","target":"record","created_at":"2026-05-18T01:34:42Z","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":"6ab43c3bcf47ded8340f214ea14517ea06cc528e8497ebaf1bd6ff0ac66a8c21","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-08-26T19:38:24Z","title_canon_sha256":"6f4e12e95d75a0925af6e8df2e95f165997f2211f93e97eace5fdc0926b91ace"},"schema_version":"1.0","source":{"id":"1508.06621","kind":"arxiv","version":1}},"canonical_sha256":"a4a6c7fa466b30a60659ab581d128a50f46eafd484b59f0fc1b2d2bbc04986c2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a4a6c7fa466b30a60659ab581d128a50f46eafd484b59f0fc1b2d2bbc04986c2","first_computed_at":"2026-05-18T01:34:42.529624Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:34:42.529624Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lmWn/w2l7v1SxdfQP9OPILhHZHo6C30t1xBK1488AQeMo987k7R1A+m2VBnhVIU9lDOA8rXQioO7XZNk9Z34Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:34:42.530209Z","signed_message":"canonical_sha256_bytes"},"source_id":"1508.06621","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d9f4ede13376a74a2397e208572834ea7e3d254611cee23c8e6fc3dce9c9a580","sha256:b33a3bf7314f069edfa8b2dc096a5fe530adae6a4a3efaeb8674cc52f94f9cbd"],"state_sha256":"cd41c45fbda7404c6f92607c0e5535a520b63faa9fb2ef525c06c660ab382ae1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DarfNdFEOpvAo8sbiqsZNNs7/tkU3AfmL2/euhD/wv143E8r01LFurGub03ia7ltc++KkVI2AFMpzA60MrrvDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T11:00:35.051659Z","bundle_sha256":"81209800479137e05497aa1e15a6c3556937122fcc6b3063b95499494dc40ad2"}}