{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:G65B64WV2K7DZUV6UV5HECZ65X","short_pith_number":"pith:G65B64WV","canonical_record":{"source":{"id":"hep-ph/0609048","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2006-09-05T14:34:47Z","cross_cats_sorted":[],"title_canon_sha256":"f04136753cab0180ad9e3da984279b28fd7e3b00321d260b0ecf7910c990637b","abstract_canon_sha256":"92d4685a5e0e7165e6481b03a6080b4d41e2232b2e4044b8c2e65d5b5224b9e4"},"schema_version":"1.0"},"canonical_sha256":"37ba1f72d5d2be3cd2bea57a720b3eede3fd5a41be5b0d252a631685f70b45bc","source":{"kind":"arxiv","id":"hep-ph/0609048","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0609048","created_at":"2026-05-18T00:37:10Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0609048v1","created_at":"2026-05-18T00:37:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0609048","created_at":"2026-05-18T00:37:10Z"},{"alias_kind":"pith_short_12","alias_value":"G65B64WV2K7D","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"G65B64WV2K7DZUV6","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"G65B64WV","created_at":"2026-05-18T12:25:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:G65B64WV2K7DZUV6UV5HECZ65X","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/0609048","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2006-09-05T14:34:47Z","cross_cats_sorted":[],"title_canon_sha256":"f04136753cab0180ad9e3da984279b28fd7e3b00321d260b0ecf7910c990637b","abstract_canon_sha256":"92d4685a5e0e7165e6481b03a6080b4d41e2232b2e4044b8c2e65d5b5224b9e4"},"schema_version":"1.0"},"canonical_sha256":"37ba1f72d5d2be3cd2bea57a720b3eede3fd5a41be5b0d252a631685f70b45bc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:37:10.914998Z","signature_b64":"7EwM67LrTYi4hl6i+pVuBpAOFFcPpjk+q4dqa2i+c/JqE6wu7VlqIqN1ovxn8RlppGGOPcWTdr8dmxHxSRQyDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"37ba1f72d5d2be3cd2bea57a720b3eede3fd5a41be5b0d252a631685f70b45bc","last_reissued_at":"2026-05-18T00:37:10.914426Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:37:10.914426Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/0609048","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":"2026-05-18T00:37:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jIyyBe5tf8E2WtezKmam/QyAaNIiNPdVcDxsIt748071iq/gPYOpJdlLFRZqTWPW8+ag1L9wNKPsoPks+kwjBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T15:50:17.301107Z"},"content_sha256":"c9ef7169eb3b5c9f7865cc574c7ce5a7137f467ade8d1627e4b771096298f4aa","schema_version":"1.0","event_id":"sha256:c9ef7169eb3b5c9f7865cc574c7ce5a7137f467ade8d1627e4b771096298f4aa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:G65B64WV2K7DZUV6UV5HECZ65X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Selected Topics in Top Quark Physics","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"J.G. K\\\"orner","submitted_at":"2006-09-05T14:34:47Z","abstract_excerpt":"I discuss three different selected topics in top quark physics. The first topic concerns the next-to-next-to-leading order calculation of the hadroproduction of top quark pairs and the role of multiple polylogarithms in this calculation. I report on an ongoing next-to-next-to-leading order calculation of heavy quark pair production in hadron collisions where the loop--by--loop part of the calculation is about to be completed. Calculating the loop-by-loop part allows one to take a glimpse at the mathematical structure of the full NNLO calculation. The loop-by-loop contributions bring in a new c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0609048","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":"2026-05-18T00:37:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GgKmAnwwWTMoUVfzVhSUO9/cTDJnP4D7CUeqi4xEJpkm0oRSNBXBG6qPcGhksAeIY5EToi06EKSXsbyYBhqtDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T15:50:17.301965Z"},"content_sha256":"1dda2444ceef681b9ef787eef0b6cca3752795a15d9e10ece7e94b30a5742444","schema_version":"1.0","event_id":"sha256:1dda2444ceef681b9ef787eef0b6cca3752795a15d9e10ece7e94b30a5742444"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/G65B64WV2K7DZUV6UV5HECZ65X/bundle.json","state_url":"https://pith.science/pith/G65B64WV2K7DZUV6UV5HECZ65X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/G65B64WV2K7DZUV6UV5HECZ65X/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":"2026-05-26T15:50:17Z","links":{"resolver":"https://pith.science/pith/G65B64WV2K7DZUV6UV5HECZ65X","bundle":"https://pith.science/pith/G65B64WV2K7DZUV6UV5HECZ65X/bundle.json","state":"https://pith.science/pith/G65B64WV2K7DZUV6UV5HECZ65X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/G65B64WV2K7DZUV6UV5HECZ65X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:G65B64WV2K7DZUV6UV5HECZ65X","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":"92d4685a5e0e7165e6481b03a6080b4d41e2232b2e4044b8c2e65d5b5224b9e4","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2006-09-05T14:34:47Z","title_canon_sha256":"f04136753cab0180ad9e3da984279b28fd7e3b00321d260b0ecf7910c990637b"},"schema_version":"1.0","source":{"id":"hep-ph/0609048","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0609048","created_at":"2026-05-18T00:37:10Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0609048v1","created_at":"2026-05-18T00:37:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0609048","created_at":"2026-05-18T00:37:10Z"},{"alias_kind":"pith_short_12","alias_value":"G65B64WV2K7D","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"G65B64WV2K7DZUV6","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"G65B64WV","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:1dda2444ceef681b9ef787eef0b6cca3752795a15d9e10ece7e94b30a5742444","target":"graph","created_at":"2026-05-18T00:37:10Z","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":"I discuss three different selected topics in top quark physics. The first topic concerns the next-to-next-to-leading order calculation of the hadroproduction of top quark pairs and the role of multiple polylogarithms in this calculation. I report on an ongoing next-to-next-to-leading order calculation of heavy quark pair production in hadron collisions where the loop--by--loop part of the calculation is about to be completed. Calculating the loop-by-loop part allows one to take a glimpse at the mathematical structure of the full NNLO calculation. The loop-by-loop contributions bring in a new c","authors_text":"J.G. K\\\"orner","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2006-09-05T14:34:47Z","title":"Selected Topics in Top Quark Physics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0609048","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:c9ef7169eb3b5c9f7865cc574c7ce5a7137f467ade8d1627e4b771096298f4aa","target":"record","created_at":"2026-05-18T00:37:10Z","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":"92d4685a5e0e7165e6481b03a6080b4d41e2232b2e4044b8c2e65d5b5224b9e4","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2006-09-05T14:34:47Z","title_canon_sha256":"f04136753cab0180ad9e3da984279b28fd7e3b00321d260b0ecf7910c990637b"},"schema_version":"1.0","source":{"id":"hep-ph/0609048","kind":"arxiv","version":1}},"canonical_sha256":"37ba1f72d5d2be3cd2bea57a720b3eede3fd5a41be5b0d252a631685f70b45bc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"37ba1f72d5d2be3cd2bea57a720b3eede3fd5a41be5b0d252a631685f70b45bc","first_computed_at":"2026-05-18T00:37:10.914426Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:37:10.914426Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7EwM67LrTYi4hl6i+pVuBpAOFFcPpjk+q4dqa2i+c/JqE6wu7VlqIqN1ovxn8RlppGGOPcWTdr8dmxHxSRQyDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:37:10.914998Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/0609048","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c9ef7169eb3b5c9f7865cc574c7ce5a7137f467ade8d1627e4b771096298f4aa","sha256:1dda2444ceef681b9ef787eef0b6cca3752795a15d9e10ece7e94b30a5742444"],"state_sha256":"7fdee3bea6469d91fb77fefefb8b42f224b2d4ae74f517457f58fd85efde767e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s+EB7zxLjTR8TE/o8nyvv2wHLBC3iXeqKBIMs7LuCIo9PGPUlpnEzfO1ii7m8DFUgjHcymYZsW8lhnu8mr2tDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T15:50:17.305820Z","bundle_sha256":"f96be9f0d7c91eb93d029f474bce72fb8d3cba0dedbb0b835daa3e218aa7e1e0"}}