{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:V72WWBAT2ELK7ESWTXBE4YCF3V","short_pith_number":"pith:V72WWBAT","canonical_record":{"source":{"id":"1105.4319","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-05-22T09:06:27Z","cross_cats_sorted":[],"title_canon_sha256":"bfc7045512d856fd095c4b6f9cc6340cf27618328038f96df6cf38a780f8de47","abstract_canon_sha256":"c0321f606e96360846d26b4b8a7ef816228fb5beabfdbe6c1ead2082bd491319"},"schema_version":"1.0"},"canonical_sha256":"aff56b0413d116af92569dc24e6045dd7f78999355b192b8a45e99edf2605a6a","source":{"kind":"arxiv","id":"1105.4319","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.4319","created_at":"2026-05-18T02:01:53Z"},{"alias_kind":"arxiv_version","alias_value":"1105.4319v4","created_at":"2026-05-18T02:01:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.4319","created_at":"2026-05-18T02:01:53Z"},{"alias_kind":"pith_short_12","alias_value":"V72WWBAT2ELK","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_16","alias_value":"V72WWBAT2ELK7ESW","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_8","alias_value":"V72WWBAT","created_at":"2026-05-18T12:26:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:V72WWBAT2ELK7ESWTXBE4YCF3V","target":"record","payload":{"canonical_record":{"source":{"id":"1105.4319","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-05-22T09:06:27Z","cross_cats_sorted":[],"title_canon_sha256":"bfc7045512d856fd095c4b6f9cc6340cf27618328038f96df6cf38a780f8de47","abstract_canon_sha256":"c0321f606e96360846d26b4b8a7ef816228fb5beabfdbe6c1ead2082bd491319"},"schema_version":"1.0"},"canonical_sha256":"aff56b0413d116af92569dc24e6045dd7f78999355b192b8a45e99edf2605a6a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:01:53.027878Z","signature_b64":"v79ci/NJaritiXiF4QcF6PcT0+KyEMdevbX/F9UHhLL5CkYoJjVdubtsE9IxUCx55eV7f+IghTykvFbassHcCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aff56b0413d116af92569dc24e6045dd7f78999355b192b8a45e99edf2605a6a","last_reissued_at":"2026-05-18T02:01:53.027223Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:01:53.027223Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1105.4319","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:01:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a2WaDeK8XYwqQoMRFz9Lk/BgHlFEC3/O14Uk0NUXKWwUW8/dcE6XvsWi04qqUlWhkucQjQc7g7sOlVWe+3hqDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T10:14:49.681546Z"},"content_sha256":"67efebc20f95a223be211e11fd8e048914c483c606049f84d3b9e3ecb3c6c057","schema_version":"1.0","event_id":"sha256:67efebc20f95a223be211e11fd8e048914c483c606049f84d3b9e3ecb3c6c057"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:V72WWBAT2ELK7ESWTXBE4YCF3V","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"One-loop calculations in quantum field theory: from Feynman diagrams to unitarity cuts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Giulia Zanderighi, Kirill Melnikov, R. Keith Ellis, Zoltan Kunszt","submitted_at":"2011-05-22T09:06:27Z","abstract_excerpt":"The success of the experimental program at the Tevatron re-inforced the idea that precision physics at hadron colliders is desirable and, indeed, possible. The Tevatron data strongly suggests that one-loop computations in QCD describe hard scattering well. Extrapolating this observation to the LHC, we conclude that knowledge of many short-distance processes at next-to-leading order may be required to describe the physics of hard scattering. While the field of one-loop computations is quite mature, parton multiplicities in hard LHC events are so high that traditional computational techniques be"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.4319","kind":"arxiv","version":4},"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":"2026-05-18T02:01:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zqRHW0CYqKtABusOX89JMfrNJRYsyxhUl4u9ByOR/8o8zR1JfjO9lBA+4SNVZyRIjTfHWPDoU3baNjGFq5jNDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T10:14:49.681889Z"},"content_sha256":"ac1b22f77ea7175b055550ca44901ccfc2674a7eb1f23b94dfe09c8028f4b1d4","schema_version":"1.0","event_id":"sha256:ac1b22f77ea7175b055550ca44901ccfc2674a7eb1f23b94dfe09c8028f4b1d4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/V72WWBAT2ELK7ESWTXBE4YCF3V/bundle.json","state_url":"https://pith.science/pith/V72WWBAT2ELK7ESWTXBE4YCF3V/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/V72WWBAT2ELK7ESWTXBE4YCF3V/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":"2026-07-04T10:14:49Z","links":{"resolver":"https://pith.science/pith/V72WWBAT2ELK7ESWTXBE4YCF3V","bundle":"https://pith.science/pith/V72WWBAT2ELK7ESWTXBE4YCF3V/bundle.json","state":"https://pith.science/pith/V72WWBAT2ELK7ESWTXBE4YCF3V/state.json","well_known_bundle":"https://pith.science/.well-known/pith/V72WWBAT2ELK7ESWTXBE4YCF3V/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:V72WWBAT2ELK7ESWTXBE4YCF3V","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":"c0321f606e96360846d26b4b8a7ef816228fb5beabfdbe6c1ead2082bd491319","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-05-22T09:06:27Z","title_canon_sha256":"bfc7045512d856fd095c4b6f9cc6340cf27618328038f96df6cf38a780f8de47"},"schema_version":"1.0","source":{"id":"1105.4319","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.4319","created_at":"2026-05-18T02:01:53Z"},{"alias_kind":"arxiv_version","alias_value":"1105.4319v4","created_at":"2026-05-18T02:01:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.4319","created_at":"2026-05-18T02:01:53Z"},{"alias_kind":"pith_short_12","alias_value":"V72WWBAT2ELK","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_16","alias_value":"V72WWBAT2ELK7ESW","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_8","alias_value":"V72WWBAT","created_at":"2026-05-18T12:26:42Z"}],"graph_snapshots":[{"event_id":"sha256:ac1b22f77ea7175b055550ca44901ccfc2674a7eb1f23b94dfe09c8028f4b1d4","target":"graph","created_at":"2026-05-18T02:01:53Z","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 success of the experimental program at the Tevatron re-inforced the idea that precision physics at hadron colliders is desirable and, indeed, possible. The Tevatron data strongly suggests that one-loop computations in QCD describe hard scattering well. Extrapolating this observation to the LHC, we conclude that knowledge of many short-distance processes at next-to-leading order may be required to describe the physics of hard scattering. While the field of one-loop computations is quite mature, parton multiplicities in hard LHC events are so high that traditional computational techniques be","authors_text":"Giulia Zanderighi, Kirill Melnikov, R. Keith Ellis, Zoltan Kunszt","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-05-22T09:06:27Z","title":"One-loop calculations in quantum field theory: from Feynman diagrams to unitarity cuts"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.4319","kind":"arxiv","version":4},"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":"sha256:67efebc20f95a223be211e11fd8e048914c483c606049f84d3b9e3ecb3c6c057","target":"record","created_at":"2026-05-18T02:01:53Z","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":"c0321f606e96360846d26b4b8a7ef816228fb5beabfdbe6c1ead2082bd491319","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-05-22T09:06:27Z","title_canon_sha256":"bfc7045512d856fd095c4b6f9cc6340cf27618328038f96df6cf38a780f8de47"},"schema_version":"1.0","source":{"id":"1105.4319","kind":"arxiv","version":4}},"canonical_sha256":"aff56b0413d116af92569dc24e6045dd7f78999355b192b8a45e99edf2605a6a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aff56b0413d116af92569dc24e6045dd7f78999355b192b8a45e99edf2605a6a","first_computed_at":"2026-05-18T02:01:53.027223Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:53.027223Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"v79ci/NJaritiXiF4QcF6PcT0+KyEMdevbX/F9UHhLL5CkYoJjVdubtsE9IxUCx55eV7f+IghTykvFbassHcCg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:53.027878Z","signed_message":"canonical_sha256_bytes"},"source_id":"1105.4319","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:67efebc20f95a223be211e11fd8e048914c483c606049f84d3b9e3ecb3c6c057","sha256:ac1b22f77ea7175b055550ca44901ccfc2674a7eb1f23b94dfe09c8028f4b1d4"],"state_sha256":"f419d130c2c5773e811b8f3c8fdf62824249f87cc4a7a652effff73b39c447f4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IB0xJuVzkw/3fENteZZAkRmN1A1KlSLUE8zK+HfIl8f/jBTrFsq+RuR0lXqdE81phb0xCECD/+E57PXSe3grBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-04T10:14:49.683828Z","bundle_sha256":"aab0ef7f2983923b83d4ef682df4b27a77449623c711e6ec68ea309d85ec0fcd"}}