{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:32N6CKYU4MR5WFDSOWO7KB5IJR","short_pith_number":"pith:32N6CKYU","canonical_record":{"source":{"id":"1204.1513","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-04-06T16:40:27Z","cross_cats_sorted":[],"title_canon_sha256":"530819e4abbca5b5e35b5bc890bac8fbc8281e49518470a46ed72d1cb427daa0","abstract_canon_sha256":"e61ed4f9f5fd99ac833011f0fa4e72c4baa83cac48ba17fe30219c2b7ab49101"},"schema_version":"1.0"},"canonical_sha256":"de9be12b14e323db1472759df507a84c58c47fb8a39de6fdbf4615c6847d40f2","source":{"kind":"arxiv","id":"1204.1513","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.1513","created_at":"2026-05-18T03:58:25Z"},{"alias_kind":"arxiv_version","alias_value":"1204.1513v1","created_at":"2026-05-18T03:58:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.1513","created_at":"2026-05-18T03:58:25Z"},{"alias_kind":"pith_short_12","alias_value":"32N6CKYU4MR5","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"32N6CKYU4MR5WFDS","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"32N6CKYU","created_at":"2026-05-18T12:26:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:32N6CKYU4MR5WFDSOWO7KB5IJR","target":"record","payload":{"canonical_record":{"source":{"id":"1204.1513","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-04-06T16:40:27Z","cross_cats_sorted":[],"title_canon_sha256":"530819e4abbca5b5e35b5bc890bac8fbc8281e49518470a46ed72d1cb427daa0","abstract_canon_sha256":"e61ed4f9f5fd99ac833011f0fa4e72c4baa83cac48ba17fe30219c2b7ab49101"},"schema_version":"1.0"},"canonical_sha256":"de9be12b14e323db1472759df507a84c58c47fb8a39de6fdbf4615c6847d40f2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:58:25.328417Z","signature_b64":"DQ5LdXGIDc05UTFCforSvQCsJarTXTZAzPl28Wj8MieycxHiqFgJa8UqTYjgSl1w0wzPHwDlyP4EuLfvzGtfDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"de9be12b14e323db1472759df507a84c58c47fb8a39de6fdbf4615c6847d40f2","last_reissued_at":"2026-05-18T03:58:25.327361Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:58:25.327361Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1204.1513","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":"2026-05-18T03:58:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AkFSHqQs3OgGLbEDkVPy+q7+9zjE41j6Nhhgiq/Q759jnjtScq4n7h9em5x22rSYUwftmEO7whC8DzMRgMenDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T21:50:33.987158Z"},"content_sha256":"71c8fcd12afb300c80bb0dc90051f4afa0bae7814514318ece84ef4ba0a6e528","schema_version":"1.0","event_id":"sha256:71c8fcd12afb300c80bb0dc90051f4afa0bae7814514318ece84ef4ba0a6e528"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:32N6CKYU4MR5WFDSOWO7KB5IJR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Top-quark processes at NLO in production and decay","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"John M. Campbell, R. Keith Ellis","submitted_at":"2012-04-06T16:40:27Z","abstract_excerpt":"We describe the implementation of top production and decay processes in the parton-level Monte Carlo program MCFM. By treating the top quark as being on-shell, we can factorize the amplitudes for top-pair production, s-channel single-top production, and t-channel single-top production into the product of an amplitude for production and an amplitude for decay. In this way we can retain all spin correlations. Both the production and the decay amplitudes are calculated consistently at next-to-leading order in alpha_s. The full dependence on the b-quark mass is also kept. Phenomenological results "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.1513","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":"2026-05-18T03:58:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RaP+BwGG/Wl0SZa9x8SoAdJ3kYh/UGj+57Po4AdrJtVV4UIyNaNY41fUq8S8tTATO64oYF4hLxu92m2itXu3CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T21:50:33.987466Z"},"content_sha256":"361f1b6ed11f3949fa069caf0890a097e86ea533999cea06fe113ba6c7147891","schema_version":"1.0","event_id":"sha256:361f1b6ed11f3949fa069caf0890a097e86ea533999cea06fe113ba6c7147891"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/32N6CKYU4MR5WFDSOWO7KB5IJR/bundle.json","state_url":"https://pith.science/pith/32N6CKYU4MR5WFDSOWO7KB5IJR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/32N6CKYU4MR5WFDSOWO7KB5IJR/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":"2026-08-20T21:50:33Z","links":{"resolver":"https://pith.science/pith/32N6CKYU4MR5WFDSOWO7KB5IJR","bundle":"https://pith.science/pith/32N6CKYU4MR5WFDSOWO7KB5IJR/bundle.json","state":"https://pith.science/pith/32N6CKYU4MR5WFDSOWO7KB5IJR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/32N6CKYU4MR5WFDSOWO7KB5IJR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:32N6CKYU4MR5WFDSOWO7KB5IJR","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":"e61ed4f9f5fd99ac833011f0fa4e72c4baa83cac48ba17fe30219c2b7ab49101","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-04-06T16:40:27Z","title_canon_sha256":"530819e4abbca5b5e35b5bc890bac8fbc8281e49518470a46ed72d1cb427daa0"},"schema_version":"1.0","source":{"id":"1204.1513","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.1513","created_at":"2026-05-18T03:58:25Z"},{"alias_kind":"arxiv_version","alias_value":"1204.1513v1","created_at":"2026-05-18T03:58:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.1513","created_at":"2026-05-18T03:58:25Z"},{"alias_kind":"pith_short_12","alias_value":"32N6CKYU4MR5","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"32N6CKYU4MR5WFDS","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"32N6CKYU","created_at":"2026-05-18T12:26:50Z"}],"graph_snapshots":[{"event_id":"sha256:361f1b6ed11f3949fa069caf0890a097e86ea533999cea06fe113ba6c7147891","target":"graph","created_at":"2026-05-18T03:58:25Z","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 describe the implementation of top production and decay processes in the parton-level Monte Carlo program MCFM. By treating the top quark as being on-shell, we can factorize the amplitudes for top-pair production, s-channel single-top production, and t-channel single-top production into the product of an amplitude for production and an amplitude for decay. In this way we can retain all spin correlations. Both the production and the decay amplitudes are calculated consistently at next-to-leading order in alpha_s. The full dependence on the b-quark mass is also kept. Phenomenological results ","authors_text":"John M. Campbell, R. Keith Ellis","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-04-06T16:40:27Z","title":"Top-quark processes at NLO in production and decay"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.1513","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":"sha256:71c8fcd12afb300c80bb0dc90051f4afa0bae7814514318ece84ef4ba0a6e528","target":"record","created_at":"2026-05-18T03:58:25Z","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":"e61ed4f9f5fd99ac833011f0fa4e72c4baa83cac48ba17fe30219c2b7ab49101","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-04-06T16:40:27Z","title_canon_sha256":"530819e4abbca5b5e35b5bc890bac8fbc8281e49518470a46ed72d1cb427daa0"},"schema_version":"1.0","source":{"id":"1204.1513","kind":"arxiv","version":1}},"canonical_sha256":"de9be12b14e323db1472759df507a84c58c47fb8a39de6fdbf4615c6847d40f2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"de9be12b14e323db1472759df507a84c58c47fb8a39de6fdbf4615c6847d40f2","first_computed_at":"2026-05-18T03:58:25.327361Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:58:25.327361Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DQ5LdXGIDc05UTFCforSvQCsJarTXTZAzPl28Wj8MieycxHiqFgJa8UqTYjgSl1w0wzPHwDlyP4EuLfvzGtfDw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:58:25.328417Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.1513","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:71c8fcd12afb300c80bb0dc90051f4afa0bae7814514318ece84ef4ba0a6e528","sha256:361f1b6ed11f3949fa069caf0890a097e86ea533999cea06fe113ba6c7147891"],"state_sha256":"fc4e6e3b00096ff77524cf24cbe49469365d54e3fbb90ad33964242c6a930c46"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b0o8KatHXv8j3z+78qNyd+vYAHJHrX2omciM653lGoBw5WKLmJohRbUf9lyo2lW1WV2VYpGZjOq4M9GO2rDYBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T21:50:33.990768Z","bundle_sha256":"71a26f02d702cd026086915a4185d016315416e10e1683d296149b5ba72db868"}}