{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:4NLVFHIL6GAC3AEGWVZTDHL5KF","short_pith_number":"pith:4NLVFHIL","canonical_record":{"source":{"id":"hep-ph/0001157","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2000-01-17T11:20:48Z","cross_cats_sorted":[],"title_canon_sha256":"5fe73e50ace1ccb2542217482af911d42601af01e1063ba3bb72e85bb1026c44","abstract_canon_sha256":"4d0021f5000a06a987e9374446d4251d41dd3003b19f59fcb81174d4e974478b"},"schema_version":"1.0"},"canonical_sha256":"e357529d0bf1802d8086b573319d7d514d8a4b478087b1de0739e5581c7a042a","source":{"kind":"arxiv","id":"hep-ph/0001157","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0001157","created_at":"2026-07-04T14:27:27Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0001157v1","created_at":"2026-07-04T14:27:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0001157","created_at":"2026-07-04T14:27:27Z"},{"alias_kind":"pith_short_12","alias_value":"4NLVFHIL6GAC","created_at":"2026-07-04T14:27:27Z"},{"alias_kind":"pith_short_16","alias_value":"4NLVFHIL6GAC3AEG","created_at":"2026-07-04T14:27:27Z"},{"alias_kind":"pith_short_8","alias_value":"4NLVFHIL","created_at":"2026-07-04T14:27:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:4NLVFHIL6GAC3AEGWVZTDHL5KF","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/0001157","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2000-01-17T11:20:48Z","cross_cats_sorted":[],"title_canon_sha256":"5fe73e50ace1ccb2542217482af911d42601af01e1063ba3bb72e85bb1026c44","abstract_canon_sha256":"4d0021f5000a06a987e9374446d4251d41dd3003b19f59fcb81174d4e974478b"},"schema_version":"1.0"},"canonical_sha256":"e357529d0bf1802d8086b573319d7d514d8a4b478087b1de0739e5581c7a042a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:27:27.880596Z","signature_b64":"JaVyiWo4E7rYkNBwGeJrQRkrQbcQ7BtVqsj7W6ea/CHXuBUmQRxxjOEDjYsMQX8DFB7tymZjaqVul015G0oLDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e357529d0bf1802d8086b573319d7d514d8a4b478087b1de0739e5581c7a042a","last_reissued_at":"2026-07-04T14:27:27.880182Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:27:27.880182Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/0001157","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":"2026-07-04T14:27:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vQ3nUt7ShYJhLqCSNlrJyLZtd+Nqc2/dmtdGECVUC/YHbJ7mep6+MNMRCs6Etl3F2t29keyTBO8suDdjpdC+BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T13:00:54.616881Z"},"content_sha256":"2b2bf3bce5294d52f1acce44adaab52930630a05cdf29ebf550c57987afd3138","schema_version":"1.0","event_id":"sha256:2b2bf3bce5294d52f1acce44adaab52930630a05cdf29ebf550c57987afd3138"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:4NLVFHIL6GAC3AEGWVZTDHL5KF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Singlet parton evolution at small x: a theoretical update","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Guido Altarelli, Richard D. Ball, Stefano Forte","submitted_at":"2000-01-17T11:20:48Z","abstract_excerpt":"This is an extended and pedagogically oriented version of our recent work, in which we proposed an improvement of the splitting functions at small x which overcomes the apparent problems encountered by the BFKL approach."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0001157","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-ph/0001157/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":"2026-07-04T14:27:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gIInYXmhiBE1v/wEStp21j6j6LTtFFIHXWD3ciKVtenITDObcGcrGpBKgL5cfG7IwXwufZD0ddXIRiiq+Z+WBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T13:00:54.617199Z"},"content_sha256":"2b47f5b53cf1de26ae1d84b887756f94aed24cdbaf69e119816ca9c9f9dd9e16","schema_version":"1.0","event_id":"sha256:2b47f5b53cf1de26ae1d84b887756f94aed24cdbaf69e119816ca9c9f9dd9e16"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4NLVFHIL6GAC3AEGWVZTDHL5KF/bundle.json","state_url":"https://pith.science/pith/4NLVFHIL6GAC3AEGWVZTDHL5KF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4NLVFHIL6GAC3AEGWVZTDHL5KF/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":"2026-08-14T13:00:54Z","links":{"resolver":"https://pith.science/pith/4NLVFHIL6GAC3AEGWVZTDHL5KF","bundle":"https://pith.science/pith/4NLVFHIL6GAC3AEGWVZTDHL5KF/bundle.json","state":"https://pith.science/pith/4NLVFHIL6GAC3AEGWVZTDHL5KF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4NLVFHIL6GAC3AEGWVZTDHL5KF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:4NLVFHIL6GAC3AEGWVZTDHL5KF","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":"4d0021f5000a06a987e9374446d4251d41dd3003b19f59fcb81174d4e974478b","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2000-01-17T11:20:48Z","title_canon_sha256":"5fe73e50ace1ccb2542217482af911d42601af01e1063ba3bb72e85bb1026c44"},"schema_version":"1.0","source":{"id":"hep-ph/0001157","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0001157","created_at":"2026-07-04T14:27:27Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0001157v1","created_at":"2026-07-04T14:27:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0001157","created_at":"2026-07-04T14:27:27Z"},{"alias_kind":"pith_short_12","alias_value":"4NLVFHIL6GAC","created_at":"2026-07-04T14:27:27Z"},{"alias_kind":"pith_short_16","alias_value":"4NLVFHIL6GAC3AEG","created_at":"2026-07-04T14:27:27Z"},{"alias_kind":"pith_short_8","alias_value":"4NLVFHIL","created_at":"2026-07-04T14:27:27Z"}],"graph_snapshots":[{"event_id":"sha256:2b47f5b53cf1de26ae1d84b887756f94aed24cdbaf69e119816ca9c9f9dd9e16","target":"graph","created_at":"2026-07-04T14:27:27Z","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/hep-ph/0001157/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This is an extended and pedagogically oriented version of our recent work, in which we proposed an improvement of the splitting functions at small x which overcomes the apparent problems encountered by the BFKL approach.","authors_text":"Guido Altarelli, Richard D. Ball, Stefano Forte","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2000-01-17T11:20:48Z","title":"Singlet parton evolution at small x: a theoretical update"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0001157","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":"sha256:2b2bf3bce5294d52f1acce44adaab52930630a05cdf29ebf550c57987afd3138","target":"record","created_at":"2026-07-04T14:27:27Z","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":"4d0021f5000a06a987e9374446d4251d41dd3003b19f59fcb81174d4e974478b","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2000-01-17T11:20:48Z","title_canon_sha256":"5fe73e50ace1ccb2542217482af911d42601af01e1063ba3bb72e85bb1026c44"},"schema_version":"1.0","source":{"id":"hep-ph/0001157","kind":"arxiv","version":1}},"canonical_sha256":"e357529d0bf1802d8086b573319d7d514d8a4b478087b1de0739e5581c7a042a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e357529d0bf1802d8086b573319d7d514d8a4b478087b1de0739e5581c7a042a","first_computed_at":"2026-07-04T14:27:27.880182Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:27:27.880182Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JaVyiWo4E7rYkNBwGeJrQRkrQbcQ7BtVqsj7W6ea/CHXuBUmQRxxjOEDjYsMQX8DFB7tymZjaqVul015G0oLDw==","signature_status":"signed_v1","signed_at":"2026-07-04T14:27:27.880596Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/0001157","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2b2bf3bce5294d52f1acce44adaab52930630a05cdf29ebf550c57987afd3138","sha256:2b47f5b53cf1de26ae1d84b887756f94aed24cdbaf69e119816ca9c9f9dd9e16"],"state_sha256":"610bc4dd3cfbbfe3353ace7e612628e4226ae92609ebda271910b1759d035fcf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v7poXnpkSV+GQLymclJa/Pfdhvx5FU6zPRTWTBTaKY26/FvQu6roP7zDKav+dOoWC8Xss+eL6URYP1KNOf20BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T13:00:54.620339Z","bundle_sha256":"431dc60b3a55a48c152d88f4af9437952f1a88cc40d81f36b4d834a397890eea"}}