{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1999:EQPJKXLRGB2RCC2C2Q4KR35XY3","short_pith_number":"pith:EQPJKXLR","canonical_record":{"source":{"id":"hep-ph/9907245","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1999-07-06T08:46:10Z","cross_cats_sorted":[],"title_canon_sha256":"6ae25f4c7e2e9a4356b07b57e2f3ad708922cfd2c3b56d5aca779fda584188a9","abstract_canon_sha256":"1da5bb2c291f9c6368fb33fe99e064df8acdfaf61599e0ddd693b61cbd069709"},"schema_version":"1.0"},"canonical_sha256":"241e955d713075110b42d438a8efb7c6c7ec5e82d63a38c91219fa7d227a17cb","source":{"kind":"arxiv","id":"hep-ph/9907245","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9907245","created_at":"2026-05-18T04:28:46Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9907245v1","created_at":"2026-05-18T04:28:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9907245","created_at":"2026-05-18T04:28:46Z"},{"alias_kind":"pith_short_12","alias_value":"EQPJKXLRGB2R","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"EQPJKXLRGB2RCC2C","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"EQPJKXLR","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1999:EQPJKXLRGB2RCC2C2Q4KR35XY3","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/9907245","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1999-07-06T08:46:10Z","cross_cats_sorted":[],"title_canon_sha256":"6ae25f4c7e2e9a4356b07b57e2f3ad708922cfd2c3b56d5aca779fda584188a9","abstract_canon_sha256":"1da5bb2c291f9c6368fb33fe99e064df8acdfaf61599e0ddd693b61cbd069709"},"schema_version":"1.0"},"canonical_sha256":"241e955d713075110b42d438a8efb7c6c7ec5e82d63a38c91219fa7d227a17cb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:28:46.052418Z","signature_b64":"g2wx0NhSidt5E26GHo4ENF+Jnw/5ltISUuRkgFaEvDAEpbljcyhVAUl8yk2WqyNN66AKaQjIQl7k7IuZd33oCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"241e955d713075110b42d438a8efb7c6c7ec5e82d63a38c91219fa7d227a17cb","last_reissued_at":"2026-05-18T04:28:46.051918Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:28:46.051918Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/9907245","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":"2026-05-18T04:28:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hBRdmGa3LMI/tduX81OA3Bua7/f0oqYs7d/vjqQPV1jrmSme+2wFTlt5l/GdCR7c7hM0PR+i62Ams5dbg12zCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T14:55:33.478890Z"},"content_sha256":"e7086b17d7b907a0c882377469fc973195ad4510284e5ac749c3d2ba32498874","schema_version":"1.0","event_id":"sha256:e7086b17d7b907a0c882377469fc973195ad4510284e5ac749c3d2ba32498874"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1999:EQPJKXLRGB2RCC2C2Q4KR35XY3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Jet Production by Virtual Photons","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Christer Friberg, Sweden), Torbj\\\"orn Sj\\\"ostrand (Lund university","submitted_at":"1999-07-06T08:46:10Z","abstract_excerpt":"The production of jets is studied in collisions of virtual photons, gamma*-p and gamma*-gamma*, specifically for applications at HERA and LEP2. Photon flux factors are convoluted with matrix elements involving either direct or resolved photons and, for the latter, with parton distributions of the photon. Special emphasis is put on the range of uncertainty in the modeling of the resolved component. The resulting model is compared with existing data."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9907245","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":"2026-05-18T04:28:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"adKeGw5JjdBGCJDAr2hAHS1sjmSuXmh/sq5zRATcM/r+e4V31PgSO0PnZXRcfkSsoHUD5cYxvv4wnSbGycw8Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T14:55:33.479234Z"},"content_sha256":"75fcf4babc52745d468d24e6ff0d508de94156d231871d93eafbdd35b60a6965","schema_version":"1.0","event_id":"sha256:75fcf4babc52745d468d24e6ff0d508de94156d231871d93eafbdd35b60a6965"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EQPJKXLRGB2RCC2C2Q4KR35XY3/bundle.json","state_url":"https://pith.science/pith/EQPJKXLRGB2RCC2C2Q4KR35XY3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EQPJKXLRGB2RCC2C2Q4KR35XY3/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":"2026-06-03T14:55:33Z","links":{"resolver":"https://pith.science/pith/EQPJKXLRGB2RCC2C2Q4KR35XY3","bundle":"https://pith.science/pith/EQPJKXLRGB2RCC2C2Q4KR35XY3/bundle.json","state":"https://pith.science/pith/EQPJKXLRGB2RCC2C2Q4KR35XY3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EQPJKXLRGB2RCC2C2Q4KR35XY3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:EQPJKXLRGB2RCC2C2Q4KR35XY3","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":"1da5bb2c291f9c6368fb33fe99e064df8acdfaf61599e0ddd693b61cbd069709","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1999-07-06T08:46:10Z","title_canon_sha256":"6ae25f4c7e2e9a4356b07b57e2f3ad708922cfd2c3b56d5aca779fda584188a9"},"schema_version":"1.0","source":{"id":"hep-ph/9907245","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9907245","created_at":"2026-05-18T04:28:46Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9907245v1","created_at":"2026-05-18T04:28:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9907245","created_at":"2026-05-18T04:28:46Z"},{"alias_kind":"pith_short_12","alias_value":"EQPJKXLRGB2R","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"EQPJKXLRGB2RCC2C","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"EQPJKXLR","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:75fcf4babc52745d468d24e6ff0d508de94156d231871d93eafbdd35b60a6965","target":"graph","created_at":"2026-05-18T04:28:46Z","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 production of jets is studied in collisions of virtual photons, gamma*-p and gamma*-gamma*, specifically for applications at HERA and LEP2. Photon flux factors are convoluted with matrix elements involving either direct or resolved photons and, for the latter, with parton distributions of the photon. Special emphasis is put on the range of uncertainty in the modeling of the resolved component. The resulting model is compared with existing data.","authors_text":"Christer Friberg, Sweden), Torbj\\\"orn Sj\\\"ostrand (Lund university","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"1999-07-06T08:46:10Z","title":"Jet Production by Virtual Photons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9907245","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:e7086b17d7b907a0c882377469fc973195ad4510284e5ac749c3d2ba32498874","target":"record","created_at":"2026-05-18T04:28:46Z","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":"1da5bb2c291f9c6368fb33fe99e064df8acdfaf61599e0ddd693b61cbd069709","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1999-07-06T08:46:10Z","title_canon_sha256":"6ae25f4c7e2e9a4356b07b57e2f3ad708922cfd2c3b56d5aca779fda584188a9"},"schema_version":"1.0","source":{"id":"hep-ph/9907245","kind":"arxiv","version":1}},"canonical_sha256":"241e955d713075110b42d438a8efb7c6c7ec5e82d63a38c91219fa7d227a17cb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"241e955d713075110b42d438a8efb7c6c7ec5e82d63a38c91219fa7d227a17cb","first_computed_at":"2026-05-18T04:28:46.051918Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:28:46.051918Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"g2wx0NhSidt5E26GHo4ENF+Jnw/5ltISUuRkgFaEvDAEpbljcyhVAUl8yk2WqyNN66AKaQjIQl7k7IuZd33oCA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:28:46.052418Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/9907245","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e7086b17d7b907a0c882377469fc973195ad4510284e5ac749c3d2ba32498874","sha256:75fcf4babc52745d468d24e6ff0d508de94156d231871d93eafbdd35b60a6965"],"state_sha256":"68f5c6336f938d0e04b5a4a1bd50139d493ed87af8c5ceddba826d13a0710205"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jbwNS9I1wavziaR+ak874khEABWTCNVahBCOZixAdstsf0TVO4vEVAmDHiOF0XDAjCP9t8zIhSTBAchDyUiVCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T14:55:33.481249Z","bundle_sha256":"c7f0ca94dd53a398c9938ab5878c4c0382bd99f19d171c27df125c4742dd5e71"}}