{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:WZYZ7VFBP4Z4GFK25FAAFFDKCM","short_pith_number":"pith:WZYZ7VFB","canonical_record":{"source":{"id":"1903.04320","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-03-11T14:21:57Z","cross_cats_sorted":[],"title_canon_sha256":"16e7d8e6163501b49b42da06afaedd48c4c777d65397a44128514186155a58f8","abstract_canon_sha256":"7d5ac5bddf9e3238d50ae953dc33310151ecad5018d9a4b0f0a53e28f3f0cafc"},"schema_version":"1.0"},"canonical_sha256":"b6719fd4a17f33c3155ae94002946a132e4f2a6ad33aabcbeba015c9f351147c","source":{"kind":"arxiv","id":"1903.04320","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.04320","created_at":"2026-05-17T23:50:07Z"},{"alias_kind":"arxiv_version","alias_value":"1903.04320v1","created_at":"2026-05-17T23:50:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.04320","created_at":"2026-05-17T23:50:07Z"},{"alias_kind":"pith_short_12","alias_value":"WZYZ7VFBP4Z4","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"WZYZ7VFBP4Z4GFK2","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"WZYZ7VFB","created_at":"2026-05-18T12:33:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:WZYZ7VFBP4Z4GFK25FAAFFDKCM","target":"record","payload":{"canonical_record":{"source":{"id":"1903.04320","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-03-11T14:21:57Z","cross_cats_sorted":[],"title_canon_sha256":"16e7d8e6163501b49b42da06afaedd48c4c777d65397a44128514186155a58f8","abstract_canon_sha256":"7d5ac5bddf9e3238d50ae953dc33310151ecad5018d9a4b0f0a53e28f3f0cafc"},"schema_version":"1.0"},"canonical_sha256":"b6719fd4a17f33c3155ae94002946a132e4f2a6ad33aabcbeba015c9f351147c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:50:07.882926Z","signature_b64":"qLf8NiSBEttltGYNKQVN2cmSnB6t6gDEFwI358fhvpbh3/P3AYNoM0C8naByVqqPfEtBaDO9pKZbXXOcUN4LAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b6719fd4a17f33c3155ae94002946a132e4f2a6ad33aabcbeba015c9f351147c","last_reissued_at":"2026-05-17T23:50:07.882300Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:50:07.882300Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.04320","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":"2026-05-17T23:50:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xs4zDvZMs961IcyUEl7PP4h/dMi2VGtvxm0/C+VTzttXB2nvFjUKU6BKvCTiGJAp+iklsN2LaapJwOy/XScRDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T15:27:25.282169Z"},"content_sha256":"bccc0e918f8c982e24c25bab3400154e204588f11c3a1e4b803f2f218691e708","schema_version":"1.0","event_id":"sha256:bccc0e918f8c982e24c25bab3400154e204588f11c3a1e4b803f2f218691e708"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:WZYZ7VFBP4Z4GFK25FAAFFDKCM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Master integrals of a planar double-box family for top-quark pair production","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Jian Wang, Long-Bin Chen","submitted_at":"2019-03-11T14:21:57Z","abstract_excerpt":"We calculate analytically the master integrals of a planar double-box family for top-quark pair production using the method of differential equations. With a proper choice of the bases, the differential equations can be transformed to the $d$-log form. The square roots of the kinematic variables in the differential equations can be rationalized by defining two dimensionless variables. We find that all the boundary conditions can be fully fixed either by simple integrals or regularity conditions at some special kinematic points. The analytic results for thirty-three master integrals at general "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.04320","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":"2026-05-17T23:50:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tQMc4ym7rZG2wdkZway96D9Q0MsU4/+5QRKgBHVSNfVxhBpXu6IgM/5TrMNtbrEjQRUDksR5ivRrn2JLhF/EAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T15:27:25.282876Z"},"content_sha256":"499278e6483e9c257c51c13fb4d40437f9ab0aee8fb95e82299250f962f229c6","schema_version":"1.0","event_id":"sha256:499278e6483e9c257c51c13fb4d40437f9ab0aee8fb95e82299250f962f229c6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WZYZ7VFBP4Z4GFK25FAAFFDKCM/bundle.json","state_url":"https://pith.science/pith/WZYZ7VFBP4Z4GFK25FAAFFDKCM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WZYZ7VFBP4Z4GFK25FAAFFDKCM/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":"2026-05-25T15:27:25Z","links":{"resolver":"https://pith.science/pith/WZYZ7VFBP4Z4GFK25FAAFFDKCM","bundle":"https://pith.science/pith/WZYZ7VFBP4Z4GFK25FAAFFDKCM/bundle.json","state":"https://pith.science/pith/WZYZ7VFBP4Z4GFK25FAAFFDKCM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WZYZ7VFBP4Z4GFK25FAAFFDKCM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:WZYZ7VFBP4Z4GFK25FAAFFDKCM","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":"7d5ac5bddf9e3238d50ae953dc33310151ecad5018d9a4b0f0a53e28f3f0cafc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-03-11T14:21:57Z","title_canon_sha256":"16e7d8e6163501b49b42da06afaedd48c4c777d65397a44128514186155a58f8"},"schema_version":"1.0","source":{"id":"1903.04320","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.04320","created_at":"2026-05-17T23:50:07Z"},{"alias_kind":"arxiv_version","alias_value":"1903.04320v1","created_at":"2026-05-17T23:50:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.04320","created_at":"2026-05-17T23:50:07Z"},{"alias_kind":"pith_short_12","alias_value":"WZYZ7VFBP4Z4","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"WZYZ7VFBP4Z4GFK2","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"WZYZ7VFB","created_at":"2026-05-18T12:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:499278e6483e9c257c51c13fb4d40437f9ab0aee8fb95e82299250f962f229c6","target":"graph","created_at":"2026-05-17T23:50:07Z","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 calculate analytically the master integrals of a planar double-box family for top-quark pair production using the method of differential equations. With a proper choice of the bases, the differential equations can be transformed to the $d$-log form. The square roots of the kinematic variables in the differential equations can be rationalized by defining two dimensionless variables. We find that all the boundary conditions can be fully fixed either by simple integrals or regularity conditions at some special kinematic points. The analytic results for thirty-three master integrals at general ","authors_text":"Jian Wang, Long-Bin Chen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-03-11T14:21:57Z","title":"Master integrals of a planar double-box family for top-quark pair production"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.04320","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:bccc0e918f8c982e24c25bab3400154e204588f11c3a1e4b803f2f218691e708","target":"record","created_at":"2026-05-17T23:50:07Z","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":"7d5ac5bddf9e3238d50ae953dc33310151ecad5018d9a4b0f0a53e28f3f0cafc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-03-11T14:21:57Z","title_canon_sha256":"16e7d8e6163501b49b42da06afaedd48c4c777d65397a44128514186155a58f8"},"schema_version":"1.0","source":{"id":"1903.04320","kind":"arxiv","version":1}},"canonical_sha256":"b6719fd4a17f33c3155ae94002946a132e4f2a6ad33aabcbeba015c9f351147c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b6719fd4a17f33c3155ae94002946a132e4f2a6ad33aabcbeba015c9f351147c","first_computed_at":"2026-05-17T23:50:07.882300Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:50:07.882300Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qLf8NiSBEttltGYNKQVN2cmSnB6t6gDEFwI358fhvpbh3/P3AYNoM0C8naByVqqPfEtBaDO9pKZbXXOcUN4LAA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:50:07.882926Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.04320","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bccc0e918f8c982e24c25bab3400154e204588f11c3a1e4b803f2f218691e708","sha256:499278e6483e9c257c51c13fb4d40437f9ab0aee8fb95e82299250f962f229c6"],"state_sha256":"429cbb73cc95abf003dc31c03a558b7468fa8db976e1b0765c5f5c3bab0c1c38"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c//bBPFfsqCQr9mhJ3Csi6X7089jjEvz5K/8/rHyGNbOKXYiA3RAa96rlQUKhVSItEiTL+fgHbwxcbkhoPyqDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T15:27:25.286447Z","bundle_sha256":"515455f7c4e68d69f4964680d27e41140ca6d12925a74eae5da45270587900ec"}}