{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:QMQBR4NG656CYDDKEEH4VK5TMP","short_pith_number":"pith:QMQBR4NG","canonical_record":{"source":{"id":"1812.04373","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-12-11T13:05:03Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"538f1f78bb7102f39a1fe56c2036fb0027150bb3a17aa03a2bd8af7e2f0af5af","abstract_canon_sha256":"bbecac969da86e0e90b6a0a6c9b15ae3e7c7274c7af38185ac0bd6b1ac4e4f98"},"schema_version":"1.0"},"canonical_sha256":"832018f1a6f77c2c0c6a210fcaabb363d11ef2b747784a44981247a0bdbfebec","source":{"kind":"arxiv","id":"1812.04373","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.04373","created_at":"2026-05-17T23:53:04Z"},{"alias_kind":"arxiv_version","alias_value":"1812.04373v3","created_at":"2026-05-17T23:53:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.04373","created_at":"2026-05-17T23:53:04Z"},{"alias_kind":"pith_short_12","alias_value":"QMQBR4NG656C","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"QMQBR4NG656CYDDK","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"QMQBR4NG","created_at":"2026-05-18T12:32:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:QMQBR4NG656CYDDKEEH4VK5TMP","target":"record","payload":{"canonical_record":{"source":{"id":"1812.04373","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-12-11T13:05:03Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"538f1f78bb7102f39a1fe56c2036fb0027150bb3a17aa03a2bd8af7e2f0af5af","abstract_canon_sha256":"bbecac969da86e0e90b6a0a6c9b15ae3e7c7274c7af38185ac0bd6b1ac4e4f98"},"schema_version":"1.0"},"canonical_sha256":"832018f1a6f77c2c0c6a210fcaabb363d11ef2b747784a44981247a0bdbfebec","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:53:04.273891Z","signature_b64":"Mqp7POenA9AaWWZFDEQzy5RsRj4d+ssq/AjxAnN5+8yaGFoyML4TmR4oqLkWeyL60MZVARCCWXVH9u8mvugSCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"832018f1a6f77c2c0c6a210fcaabb363d11ef2b747784a44981247a0bdbfebec","last_reissued_at":"2026-05-17T23:53:04.273447Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:53:04.273447Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1812.04373","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:53:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4pMHkfsA9nrW9bKr55U4FS/5jeFAllbQ9vtwrERIlL/cvPNM0VJcyleqa4yC9MpvWPNKl5d06mmTj+o+CMqICA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T12:33:47.069875Z"},"content_sha256":"fb97b87dbea39484e0985048112b9f4c3a077723a0e417154a6c8b1f622eeb20","schema_version":"1.0","event_id":"sha256:fb97b87dbea39484e0985048112b9f4c3a077723a0e417154a6c8b1f622eeb20"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:QMQBR4NG656CYDDKEEH4VK5TMP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High-Energy Expansion of Two-Loop Massive Four-Point Diagrams","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"hep-ph","authors_text":"Go Mishima","submitted_at":"2018-12-11T13:05:03Z","abstract_excerpt":"We apply the method of regions to the massive two-loop integrals appearing in the Higgs pair production cross section at the next-to-leading order, in the high energy limit. For the non-planar integrals, a subtle problem arises because of the indefinite sign of the second Symanzik polynomial. We solve this problem by performing an analytic continuation of the Mandelstam variables such that the second Symanzik polynomial has a definite sign. Furthermore, we formulate the procedure of applying the method of regions systematically. As a by-product of the analytic continuation of the Mandelstam va"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.04373","kind":"arxiv","version":3},"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":"2026-05-17T23:53:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yaByG6C1LolaeRvA4SsSrl0RWml4lO6ke9n3bP3vVJMrANQRg68wk4iKMZI9sXLZsjWcn793WlWlujKbWqTvCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T12:33:47.070597Z"},"content_sha256":"8dc88751876afa27e79bdd7490420aa1e5f1c5c945c9a0c872f015b597fc0d6d","schema_version":"1.0","event_id":"sha256:8dc88751876afa27e79bdd7490420aa1e5f1c5c945c9a0c872f015b597fc0d6d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QMQBR4NG656CYDDKEEH4VK5TMP/bundle.json","state_url":"https://pith.science/pith/QMQBR4NG656CYDDKEEH4VK5TMP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QMQBR4NG656CYDDKEEH4VK5TMP/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":"2026-05-31T12:33:47Z","links":{"resolver":"https://pith.science/pith/QMQBR4NG656CYDDKEEH4VK5TMP","bundle":"https://pith.science/pith/QMQBR4NG656CYDDKEEH4VK5TMP/bundle.json","state":"https://pith.science/pith/QMQBR4NG656CYDDKEEH4VK5TMP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QMQBR4NG656CYDDKEEH4VK5TMP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:QMQBR4NG656CYDDKEEH4VK5TMP","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":"bbecac969da86e0e90b6a0a6c9b15ae3e7c7274c7af38185ac0bd6b1ac4e4f98","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-12-11T13:05:03Z","title_canon_sha256":"538f1f78bb7102f39a1fe56c2036fb0027150bb3a17aa03a2bd8af7e2f0af5af"},"schema_version":"1.0","source":{"id":"1812.04373","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.04373","created_at":"2026-05-17T23:53:04Z"},{"alias_kind":"arxiv_version","alias_value":"1812.04373v3","created_at":"2026-05-17T23:53:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.04373","created_at":"2026-05-17T23:53:04Z"},{"alias_kind":"pith_short_12","alias_value":"QMQBR4NG656C","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"QMQBR4NG656CYDDK","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"QMQBR4NG","created_at":"2026-05-18T12:32:46Z"}],"graph_snapshots":[{"event_id":"sha256:8dc88751876afa27e79bdd7490420aa1e5f1c5c945c9a0c872f015b597fc0d6d","target":"graph","created_at":"2026-05-17T23:53:04Z","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 apply the method of regions to the massive two-loop integrals appearing in the Higgs pair production cross section at the next-to-leading order, in the high energy limit. For the non-planar integrals, a subtle problem arises because of the indefinite sign of the second Symanzik polynomial. We solve this problem by performing an analytic continuation of the Mandelstam variables such that the second Symanzik polynomial has a definite sign. Furthermore, we formulate the procedure of applying the method of regions systematically. As a by-product of the analytic continuation of the Mandelstam va","authors_text":"Go Mishima","cross_cats":["hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-12-11T13:05:03Z","title":"High-Energy Expansion of Two-Loop Massive Four-Point Diagrams"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.04373","kind":"arxiv","version":3},"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:fb97b87dbea39484e0985048112b9f4c3a077723a0e417154a6c8b1f622eeb20","target":"record","created_at":"2026-05-17T23:53:04Z","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":"bbecac969da86e0e90b6a0a6c9b15ae3e7c7274c7af38185ac0bd6b1ac4e4f98","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-12-11T13:05:03Z","title_canon_sha256":"538f1f78bb7102f39a1fe56c2036fb0027150bb3a17aa03a2bd8af7e2f0af5af"},"schema_version":"1.0","source":{"id":"1812.04373","kind":"arxiv","version":3}},"canonical_sha256":"832018f1a6f77c2c0c6a210fcaabb363d11ef2b747784a44981247a0bdbfebec","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"832018f1a6f77c2c0c6a210fcaabb363d11ef2b747784a44981247a0bdbfebec","first_computed_at":"2026-05-17T23:53:04.273447Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:53:04.273447Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Mqp7POenA9AaWWZFDEQzy5RsRj4d+ssq/AjxAnN5+8yaGFoyML4TmR4oqLkWeyL60MZVARCCWXVH9u8mvugSCQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:53:04.273891Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.04373","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fb97b87dbea39484e0985048112b9f4c3a077723a0e417154a6c8b1f622eeb20","sha256:8dc88751876afa27e79bdd7490420aa1e5f1c5c945c9a0c872f015b597fc0d6d"],"state_sha256":"6bc6bc05fc4fbf049cfd9105c12f976c911204b2081793bdecce3c45ed93d690"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4sHq8PrwQnpNaTKDduRhF2iD7a6ILFZdvwBTtTrlme9GxP2pCiWhRmUUXGv1DG37shqt7VitPB441E7uc3NDDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T12:33:47.074688Z","bundle_sha256":"1ad92f549d154dde425f681bec4efb74bb54e1711feee6b1b779725f976205be"}}