{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:SDTJWB42QURFFRFT5VFGTAKLET","short_pith_number":"pith:SDTJWB42","canonical_record":{"source":{"id":"1807.07319","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-07-19T09:52:12Z","cross_cats_sorted":[],"title_canon_sha256":"bbeba652ebf8bbd561a36b7d0b9e5f9b9725bdaf78eb1c65e1db3dc03e2a241e","abstract_canon_sha256":"6a83ec121b84c2e5c94a9d242374bdbe5aa64410d580fcab6fa8acf8c17ff29b"},"schema_version":"1.0"},"canonical_sha256":"90e69b079a852252c4b3ed4a69814b24ec2689f08fa6e6408778dce516af39c1","source":{"kind":"arxiv","id":"1807.07319","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.07319","created_at":"2026-05-17T23:50:45Z"},{"alias_kind":"arxiv_version","alias_value":"1807.07319v2","created_at":"2026-05-17T23:50:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.07319","created_at":"2026-05-17T23:50:45Z"},{"alias_kind":"pith_short_12","alias_value":"SDTJWB42QURF","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"SDTJWB42QURFFRFT","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"SDTJWB42","created_at":"2026-05-18T12:32:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:SDTJWB42QURFFRFT5VFGTAKLET","target":"record","payload":{"canonical_record":{"source":{"id":"1807.07319","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-07-19T09:52:12Z","cross_cats_sorted":[],"title_canon_sha256":"bbeba652ebf8bbd561a36b7d0b9e5f9b9725bdaf78eb1c65e1db3dc03e2a241e","abstract_canon_sha256":"6a83ec121b84c2e5c94a9d242374bdbe5aa64410d580fcab6fa8acf8c17ff29b"},"schema_version":"1.0"},"canonical_sha256":"90e69b079a852252c4b3ed4a69814b24ec2689f08fa6e6408778dce516af39c1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:50:45.054092Z","signature_b64":"H9K40/YKsuyensZ9NFI+0ekmQVh54C5/hC34nliE0oHJvVWJEHxEXUbH/l3i5dU9q7UxJ4Xx4H9Qp+kAed17Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"90e69b079a852252c4b3ed4a69814b24ec2689f08fa6e6408778dce516af39c1","last_reissued_at":"2026-05-17T23:50:45.053474Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:50:45.053474Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.07319","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":"2026-05-17T23:50:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pa1pvkR7j01RTHs8pxvBX1W8LxROsOfobKh6xgejyAshIjyaOt0WcYvfPYgk5pPLdUf/y1XLKQv31T6PXnR/CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T03:53:57.363567Z"},"content_sha256":"d00d472bb84f724264643ef9be3137acb4ffa4041ddb23fad27c1c4178d8f8fb","schema_version":"1.0","event_id":"sha256:d00d472bb84f724264643ef9be3137acb4ffa4041ddb23fad27c1c4178d8f8fb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:SDTJWB42QURFFRFT5VFGTAKLET","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Model-independent constraints on the CKM matrix elements $|V_{tb}|$, $|V_{ts}|$ and $|V_{td}|$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Andrea Giammanco, Barbara Clerbaux, Reza Goldouzian, Wenxing Fang","submitted_at":"2018-07-19T09:52:12Z","abstract_excerpt":"Single top quark production cross sections at hadron colliders are traditionally used to extract the modulus of the $V_{tb}$ element of the Cabibbo-Kobayashi-Maskawa matrix under the following assumption: $|V_{tb}| \\gg |V_{td}|, |V_{ts}|$. For the first time, direct limits on $|V_{td}|$ and $|V_{ts}|$ are obtained using experimental data without the assumption of the unitarity of the CKM matrix. Limits on the $|V_{td}|$, $|V_{ts}|$ and $|V_{tb}|$ are extracted from differential measurements of single top quark cross sections in $t$-channel as a function of the rapidity and transverse momentum "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.07319","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":"2026-05-17T23:50:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"88F1G70tZ+376DUxzz67u/GmO4S6JKbchcJKN/kxmCxjeC3KVOcOtDQ/8d0JPWQ4F57FZYXKQ2j/0iLaTXHoDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T03:53:57.363912Z"},"content_sha256":"259996fbe501f64cd9e88a81b61b7fb0a47e4ea333f5c805259e4b1859bbf384","schema_version":"1.0","event_id":"sha256:259996fbe501f64cd9e88a81b61b7fb0a47e4ea333f5c805259e4b1859bbf384"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SDTJWB42QURFFRFT5VFGTAKLET/bundle.json","state_url":"https://pith.science/pith/SDTJWB42QURFFRFT5VFGTAKLET/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SDTJWB42QURFFRFT5VFGTAKLET/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":"2026-06-02T03:53:57Z","links":{"resolver":"https://pith.science/pith/SDTJWB42QURFFRFT5VFGTAKLET","bundle":"https://pith.science/pith/SDTJWB42QURFFRFT5VFGTAKLET/bundle.json","state":"https://pith.science/pith/SDTJWB42QURFFRFT5VFGTAKLET/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SDTJWB42QURFFRFT5VFGTAKLET/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:SDTJWB42QURFFRFT5VFGTAKLET","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":"6a83ec121b84c2e5c94a9d242374bdbe5aa64410d580fcab6fa8acf8c17ff29b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-07-19T09:52:12Z","title_canon_sha256":"bbeba652ebf8bbd561a36b7d0b9e5f9b9725bdaf78eb1c65e1db3dc03e2a241e"},"schema_version":"1.0","source":{"id":"1807.07319","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.07319","created_at":"2026-05-17T23:50:45Z"},{"alias_kind":"arxiv_version","alias_value":"1807.07319v2","created_at":"2026-05-17T23:50:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.07319","created_at":"2026-05-17T23:50:45Z"},{"alias_kind":"pith_short_12","alias_value":"SDTJWB42QURF","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"SDTJWB42QURFFRFT","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"SDTJWB42","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:259996fbe501f64cd9e88a81b61b7fb0a47e4ea333f5c805259e4b1859bbf384","target":"graph","created_at":"2026-05-17T23:50:45Z","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":"Single top quark production cross sections at hadron colliders are traditionally used to extract the modulus of the $V_{tb}$ element of the Cabibbo-Kobayashi-Maskawa matrix under the following assumption: $|V_{tb}| \\gg |V_{td}|, |V_{ts}|$. For the first time, direct limits on $|V_{td}|$ and $|V_{ts}|$ are obtained using experimental data without the assumption of the unitarity of the CKM matrix. Limits on the $|V_{td}|$, $|V_{ts}|$ and $|V_{tb}|$ are extracted from differential measurements of single top quark cross sections in $t$-channel as a function of the rapidity and transverse momentum ","authors_text":"Andrea Giammanco, Barbara Clerbaux, Reza Goldouzian, Wenxing Fang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-07-19T09:52:12Z","title":"Model-independent constraints on the CKM matrix elements $|V_{tb}|$, $|V_{ts}|$ and $|V_{td}|$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.07319","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:d00d472bb84f724264643ef9be3137acb4ffa4041ddb23fad27c1c4178d8f8fb","target":"record","created_at":"2026-05-17T23:50:45Z","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":"6a83ec121b84c2e5c94a9d242374bdbe5aa64410d580fcab6fa8acf8c17ff29b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-07-19T09:52:12Z","title_canon_sha256":"bbeba652ebf8bbd561a36b7d0b9e5f9b9725bdaf78eb1c65e1db3dc03e2a241e"},"schema_version":"1.0","source":{"id":"1807.07319","kind":"arxiv","version":2}},"canonical_sha256":"90e69b079a852252c4b3ed4a69814b24ec2689f08fa6e6408778dce516af39c1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"90e69b079a852252c4b3ed4a69814b24ec2689f08fa6e6408778dce516af39c1","first_computed_at":"2026-05-17T23:50:45.053474Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:50:45.053474Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"H9K40/YKsuyensZ9NFI+0ekmQVh54C5/hC34nliE0oHJvVWJEHxEXUbH/l3i5dU9q7UxJ4Xx4H9Qp+kAed17Cg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:50:45.054092Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.07319","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d00d472bb84f724264643ef9be3137acb4ffa4041ddb23fad27c1c4178d8f8fb","sha256:259996fbe501f64cd9e88a81b61b7fb0a47e4ea333f5c805259e4b1859bbf384"],"state_sha256":"9e31102666b0e8f2533bbdc00b3cbdf9ae4777dc498a2062af1435a07f4109a9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7Ej0a/kHO3nCRiHDmRW7msGsSyLY1BcQsd81zpoK22f7UNtGXzyA/p1i0isX2JdPXVzubQ5/VxYHsszeWVNSAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T03:53:57.365870Z","bundle_sha256":"0d97e628e9f89c623b6f20352f72f11c0d482736b7ce368507382ca5eddcacfc"}}