{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:SOA7NRWISRMJKH7ZCABWZJQ2TD","short_pith_number":"pith:SOA7NRWI","canonical_record":{"source":{"id":"0704.2798","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2007-04-20T21:48:53Z","cross_cats_sorted":[],"title_canon_sha256":"586184333cf6518d24e3d90caa4c2c1e2accbd41329f93763164774f1ad81dda","abstract_canon_sha256":"01fd96fd5857f1e3f65bdb89174f1f13952febda36478fc555c14c5e008899c2"},"schema_version":"1.0"},"canonical_sha256":"9381f6c6c89458951ff910036ca61a98e6e305144abcda00019b8e7516dd0053","source":{"kind":"arxiv","id":"0704.2798","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0704.2798","created_at":"2026-05-18T04:36:09Z"},{"alias_kind":"arxiv_version","alias_value":"0704.2798v2","created_at":"2026-05-18T04:36:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0704.2798","created_at":"2026-05-18T04:36:09Z"},{"alias_kind":"pith_short_12","alias_value":"SOA7NRWISRMJ","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"SOA7NRWISRMJKH7Z","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"SOA7NRWI","created_at":"2026-05-18T12:25:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:SOA7NRWISRMJKH7ZCABWZJQ2TD","target":"record","payload":{"canonical_record":{"source":{"id":"0704.2798","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2007-04-20T21:48:53Z","cross_cats_sorted":[],"title_canon_sha256":"586184333cf6518d24e3d90caa4c2c1e2accbd41329f93763164774f1ad81dda","abstract_canon_sha256":"01fd96fd5857f1e3f65bdb89174f1f13952febda36478fc555c14c5e008899c2"},"schema_version":"1.0"},"canonical_sha256":"9381f6c6c89458951ff910036ca61a98e6e305144abcda00019b8e7516dd0053","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:36:09.174045Z","signature_b64":"HOxhJu/IVMhWyzmJt5r0/oHA264/Cfvjeajtz+pdoE0OCQNh7XPmWYEdjUx3sxYatyxn5g6lWQzHEExVG/K/DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9381f6c6c89458951ff910036ca61a98e6e305144abcda00019b8e7516dd0053","last_reissued_at":"2026-05-18T04:36:09.173390Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:36:09.173390Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0704.2798","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:36:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bUq9tF/PaiihUbTYMoZFCUd5krlXH/iz0x3+cZdAWGvUsX6gQwEbDRPR8N9gd4ZLRW44wt8/wNBFxGUW53uuDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T02:50:07.479793Z"},"content_sha256":"4efb8fb4b2877c35d902eba8fde42d80d918a18455934243c0ec3189da9f4d8b","schema_version":"1.0","event_id":"sha256:4efb8fb4b2877c35d902eba8fde42d80d918a18455934243c0ec3189da9f4d8b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:SOA7NRWISRMJKH7ZCABWZJQ2TD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On-Shell Methods in Perturbative QCD","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"David A. Kosower, Lance J. Dixon, Zvi Bern","submitted_at":"2007-04-20T21:48:53Z","abstract_excerpt":"We review on-shell methods for computing multi-parton scattering amplitudes in perturbative QCD, utilizing their unitarity and factorization properties. We focus on aspects which are useful for the construction of one-loop amplitudes needed for phenomenological studies at the Large Hadron Collider."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0704.2798","kind":"arxiv","version":2},"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":"2026-05-18T04:36:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OylNLZnM7Pnrmc5CqZ+bMJqJxo3I1DxPHdZR7c4i+OtHUFP0kR4StF2+X+IYB55/W3trlnQRxd5BzzU31MUhBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T02:50:07.480139Z"},"content_sha256":"d4dbce59065b52e28724b3b041d31d11c98062a397033764146659cf12e50afc","schema_version":"1.0","event_id":"sha256:d4dbce59065b52e28724b3b041d31d11c98062a397033764146659cf12e50afc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SOA7NRWISRMJKH7ZCABWZJQ2TD/bundle.json","state_url":"https://pith.science/pith/SOA7NRWISRMJKH7ZCABWZJQ2TD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SOA7NRWISRMJKH7ZCABWZJQ2TD/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":"2026-06-30T02:50:07Z","links":{"resolver":"https://pith.science/pith/SOA7NRWISRMJKH7ZCABWZJQ2TD","bundle":"https://pith.science/pith/SOA7NRWISRMJKH7ZCABWZJQ2TD/bundle.json","state":"https://pith.science/pith/SOA7NRWISRMJKH7ZCABWZJQ2TD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SOA7NRWISRMJKH7ZCABWZJQ2TD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:SOA7NRWISRMJKH7ZCABWZJQ2TD","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":"01fd96fd5857f1e3f65bdb89174f1f13952febda36478fc555c14c5e008899c2","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2007-04-20T21:48:53Z","title_canon_sha256":"586184333cf6518d24e3d90caa4c2c1e2accbd41329f93763164774f1ad81dda"},"schema_version":"1.0","source":{"id":"0704.2798","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0704.2798","created_at":"2026-05-18T04:36:09Z"},{"alias_kind":"arxiv_version","alias_value":"0704.2798v2","created_at":"2026-05-18T04:36:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0704.2798","created_at":"2026-05-18T04:36:09Z"},{"alias_kind":"pith_short_12","alias_value":"SOA7NRWISRMJ","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"SOA7NRWISRMJKH7Z","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"SOA7NRWI","created_at":"2026-05-18T12:25:56Z"}],"graph_snapshots":[{"event_id":"sha256:d4dbce59065b52e28724b3b041d31d11c98062a397033764146659cf12e50afc","target":"graph","created_at":"2026-05-18T04:36:09Z","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 review on-shell methods for computing multi-parton scattering amplitudes in perturbative QCD, utilizing their unitarity and factorization properties. We focus on aspects which are useful for the construction of one-loop amplitudes needed for phenomenological studies at the Large Hadron Collider.","authors_text":"David A. Kosower, Lance J. Dixon, Zvi Bern","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2007-04-20T21:48:53Z","title":"On-Shell Methods in Perturbative QCD"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0704.2798","kind":"arxiv","version":2},"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":"sha256:4efb8fb4b2877c35d902eba8fde42d80d918a18455934243c0ec3189da9f4d8b","target":"record","created_at":"2026-05-18T04:36:09Z","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":"01fd96fd5857f1e3f65bdb89174f1f13952febda36478fc555c14c5e008899c2","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2007-04-20T21:48:53Z","title_canon_sha256":"586184333cf6518d24e3d90caa4c2c1e2accbd41329f93763164774f1ad81dda"},"schema_version":"1.0","source":{"id":"0704.2798","kind":"arxiv","version":2}},"canonical_sha256":"9381f6c6c89458951ff910036ca61a98e6e305144abcda00019b8e7516dd0053","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9381f6c6c89458951ff910036ca61a98e6e305144abcda00019b8e7516dd0053","first_computed_at":"2026-05-18T04:36:09.173390Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:36:09.173390Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HOxhJu/IVMhWyzmJt5r0/oHA264/Cfvjeajtz+pdoE0OCQNh7XPmWYEdjUx3sxYatyxn5g6lWQzHEExVG/K/DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:36:09.174045Z","signed_message":"canonical_sha256_bytes"},"source_id":"0704.2798","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4efb8fb4b2877c35d902eba8fde42d80d918a18455934243c0ec3189da9f4d8b","sha256:d4dbce59065b52e28724b3b041d31d11c98062a397033764146659cf12e50afc"],"state_sha256":"a0982911f94e5ffa31e41a301395bed7a591f265a0c6d392d79c8d37f41d41c7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wxjiwcUOYvUm2WAw+EsshprvDEeKXo0uK+0yEZiPypbsaALUckZQruY8Sn51wmoFxPURl5R7Q4A2M+RWWptDAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-30T02:50:07.482651Z","bundle_sha256":"409de4fe21c7335ec6b94e95c4750db91614bffba763c67da18e7ddbeea460af"}}