{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:P5TJGEEXAJ2NGCZEKKV6RY2JYP","short_pith_number":"pith:P5TJGEEX","canonical_record":{"source":{"id":"1903.09832","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-03-23T15:18:48Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"5f93f18836335b2ff0ee343d2ae1b29d1a835481e64d1566a4939471bb45b97b","abstract_canon_sha256":"c5b219a7480a9dc411999e6dfe4aa20c197e39cb3655e875a721c3bba391d9c0"},"schema_version":"1.0"},"canonical_sha256":"7f669310970274d30b2452abe8e349c3f17827394f6541893babcddb0d1a7ea0","source":{"kind":"arxiv","id":"1903.09832","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.09832","created_at":"2026-07-05T00:07:22Z"},{"alias_kind":"arxiv_version","alias_value":"1903.09832v2","created_at":"2026-07-05T00:07:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.09832","created_at":"2026-07-05T00:07:22Z"},{"alias_kind":"pith_short_12","alias_value":"P5TJGEEXAJ2N","created_at":"2026-07-05T00:07:22Z"},{"alias_kind":"pith_short_16","alias_value":"P5TJGEEXAJ2NGCZE","created_at":"2026-07-05T00:07:22Z"},{"alias_kind":"pith_short_8","alias_value":"P5TJGEEX","created_at":"2026-07-05T00:07:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:P5TJGEEXAJ2NGCZEKKV6RY2JYP","target":"record","payload":{"canonical_record":{"source":{"id":"1903.09832","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-03-23T15:18:48Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"5f93f18836335b2ff0ee343d2ae1b29d1a835481e64d1566a4939471bb45b97b","abstract_canon_sha256":"c5b219a7480a9dc411999e6dfe4aa20c197e39cb3655e875a721c3bba391d9c0"},"schema_version":"1.0"},"canonical_sha256":"7f669310970274d30b2452abe8e349c3f17827394f6541893babcddb0d1a7ea0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:07:22.729257Z","signature_b64":"yoE6Ka+fltwpJxZZ8T383Mhfpnsf3RzVkpRDtcQpNui5Ai2VZcUBfMt4iryuFyRu+i4hVxWjppjwkG3v9QbiCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7f669310970274d30b2452abe8e349c3f17827394f6541893babcddb0d1a7ea0","last_reissued_at":"2026-07-05T00:07:22.728781Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:07:22.728781Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.09832","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":"2026-07-05T00:07:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iXx0t9bLHIZpWYaYS40pCXf+ralw/C4BP4JzwFb/JmMFvQLwSVtMwzg4e3naUUaHTDEE6drUQ4jkiKGeOnuaBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T06:19:12.966092Z"},"content_sha256":"9a530e801ec35c6678b933bce550366215ef93d062464e392ed46a486ec92789","schema_version":"1.0","event_id":"sha256:9a530e801ec35c6678b933bce550366215ef93d062464e392ed46a486ec92789"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:P5TJGEEXAJ2NGCZEKKV6RY2JYP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Non-quadratic improved Hessian PDF reweighting and application to CMS dijet measurements at 5.02 TeV","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-ph","authors_text":"Hannu Paukkunen, Kari J. Eskola, Petja Paakkinen","submitted_at":"2019-03-23T15:18:48Z","abstract_excerpt":"Hessian PDF reweighting, or \"profiling\", has become a widely used way to study the impact of a new data set on parton distribution functions (PDFs) with Hessian error sets. The available implementations of this method have resorted to a perfectly quadratic approximation of the initial $\\chi^2$ function before inclusion of the new data. We demonstrate how one can take into account the first non-quadratic components of the original fit in the reweighting, provided that the necessary information is available. We then apply this method to the CMS measurement of dijet pseudorapidity spectra in prot"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.09832","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/1903.09832/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":"2026-07-05T00:07:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uVH97UX6sCOxbc6GqGhD1DWXR68oZj4g3Nt8QOYJlBynwA+DzdUlME+lH6M8KfN962g4+sqj60OC1Ze4jaWjCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T06:19:12.966578Z"},"content_sha256":"1c9a9d5613b8ef172f595a7fd8439c91506496f90ef63a28b4540ce48b41a460","schema_version":"1.0","event_id":"sha256:1c9a9d5613b8ef172f595a7fd8439c91506496f90ef63a28b4540ce48b41a460"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P5TJGEEXAJ2NGCZEKKV6RY2JYP/bundle.json","state_url":"https://pith.science/pith/P5TJGEEXAJ2NGCZEKKV6RY2JYP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P5TJGEEXAJ2NGCZEKKV6RY2JYP/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":"2026-08-05T06:19:12Z","links":{"resolver":"https://pith.science/pith/P5TJGEEXAJ2NGCZEKKV6RY2JYP","bundle":"https://pith.science/pith/P5TJGEEXAJ2NGCZEKKV6RY2JYP/bundle.json","state":"https://pith.science/pith/P5TJGEEXAJ2NGCZEKKV6RY2JYP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P5TJGEEXAJ2NGCZEKKV6RY2JYP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:P5TJGEEXAJ2NGCZEKKV6RY2JYP","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":"c5b219a7480a9dc411999e6dfe4aa20c197e39cb3655e875a721c3bba391d9c0","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-03-23T15:18:48Z","title_canon_sha256":"5f93f18836335b2ff0ee343d2ae1b29d1a835481e64d1566a4939471bb45b97b"},"schema_version":"1.0","source":{"id":"1903.09832","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.09832","created_at":"2026-07-05T00:07:22Z"},{"alias_kind":"arxiv_version","alias_value":"1903.09832v2","created_at":"2026-07-05T00:07:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.09832","created_at":"2026-07-05T00:07:22Z"},{"alias_kind":"pith_short_12","alias_value":"P5TJGEEXAJ2N","created_at":"2026-07-05T00:07:22Z"},{"alias_kind":"pith_short_16","alias_value":"P5TJGEEXAJ2NGCZE","created_at":"2026-07-05T00:07:22Z"},{"alias_kind":"pith_short_8","alias_value":"P5TJGEEX","created_at":"2026-07-05T00:07:22Z"}],"graph_snapshots":[{"event_id":"sha256:1c9a9d5613b8ef172f595a7fd8439c91506496f90ef63a28b4540ce48b41a460","target":"graph","created_at":"2026-07-05T00:07:22Z","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/1903.09832/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Hessian PDF reweighting, or \"profiling\", has become a widely used way to study the impact of a new data set on parton distribution functions (PDFs) with Hessian error sets. The available implementations of this method have resorted to a perfectly quadratic approximation of the initial $\\chi^2$ function before inclusion of the new data. We demonstrate how one can take into account the first non-quadratic components of the original fit in the reweighting, provided that the necessary information is available. We then apply this method to the CMS measurement of dijet pseudorapidity spectra in prot","authors_text":"Hannu Paukkunen, Kari J. Eskola, Petja Paakkinen","cross_cats":["nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-03-23T15:18:48Z","title":"Non-quadratic improved Hessian PDF reweighting and application to CMS dijet measurements at 5.02 TeV"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.09832","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":"sha256:9a530e801ec35c6678b933bce550366215ef93d062464e392ed46a486ec92789","target":"record","created_at":"2026-07-05T00:07:22Z","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":"c5b219a7480a9dc411999e6dfe4aa20c197e39cb3655e875a721c3bba391d9c0","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-03-23T15:18:48Z","title_canon_sha256":"5f93f18836335b2ff0ee343d2ae1b29d1a835481e64d1566a4939471bb45b97b"},"schema_version":"1.0","source":{"id":"1903.09832","kind":"arxiv","version":2}},"canonical_sha256":"7f669310970274d30b2452abe8e349c3f17827394f6541893babcddb0d1a7ea0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7f669310970274d30b2452abe8e349c3f17827394f6541893babcddb0d1a7ea0","first_computed_at":"2026-07-05T00:07:22.728781Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:07:22.728781Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yoE6Ka+fltwpJxZZ8T383Mhfpnsf3RzVkpRDtcQpNui5Ai2VZcUBfMt4iryuFyRu+i4hVxWjppjwkG3v9QbiCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:07:22.729257Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.09832","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9a530e801ec35c6678b933bce550366215ef93d062464e392ed46a486ec92789","sha256:1c9a9d5613b8ef172f595a7fd8439c91506496f90ef63a28b4540ce48b41a460"],"state_sha256":"548b8b58dd31d7d6258514f0067e24e84dd8ac41445d0acb4f69967e9f12064e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8+BOjekfwLM7V+GO8BaqFSnJEfnSZsl6lNts6mjmq8nAP4K6f4HFx73hZhEiw1wvPVL2QxYU+p2st7cULW7ABQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T06:19:12.970440Z","bundle_sha256":"b9af4e5a282530f1c467a937a1d942371df07308c62dc594720007fc7824e51d"}}