{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1998:5IM4MZBYLI4EH4OJ4ZHGPBZMFB","short_pith_number":"pith:5IM4MZBY","canonical_record":{"source":{"id":"hep-ph/9812384","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1998-12-16T12:00:51Z","cross_cats_sorted":[],"title_canon_sha256":"62df90a9d81c36f6586f9dad3b2b0078485045c13585205d5bc99eebc8f1f363","abstract_canon_sha256":"765097ee07581187b3176d1aa9865e79e4106b3ddfb078e947d36d5588e2c6ef"},"schema_version":"1.0"},"canonical_sha256":"ea19c664385a3843f1c9e64e67872c2859d07b6bd792f926e744a6fb7de59125","source":{"kind":"arxiv","id":"hep-ph/9812384","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9812384","created_at":"2026-05-18T02:36:56Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9812384v2","created_at":"2026-05-18T02:36:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9812384","created_at":"2026-05-18T02:36:56Z"},{"alias_kind":"pith_short_12","alias_value":"5IM4MZBYLI4E","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"5IM4MZBYLI4EH4OJ","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"5IM4MZBY","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1998:5IM4MZBYLI4EH4OJ4ZHGPBZMFB","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/9812384","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1998-12-16T12:00:51Z","cross_cats_sorted":[],"title_canon_sha256":"62df90a9d81c36f6586f9dad3b2b0078485045c13585205d5bc99eebc8f1f363","abstract_canon_sha256":"765097ee07581187b3176d1aa9865e79e4106b3ddfb078e947d36d5588e2c6ef"},"schema_version":"1.0"},"canonical_sha256":"ea19c664385a3843f1c9e64e67872c2859d07b6bd792f926e744a6fb7de59125","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:36:56.921745Z","signature_b64":"1xE/UR4V30pSkRCnNRp/fhbvfn4eCLw5nQEhCod8d2MfeTEeKi/BEZWx0pQ1GZC395pDHVE05+/OoNWXIw0rBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ea19c664385a3843f1c9e64e67872c2859d07b6bd792f926e744a6fb7de59125","last_reissued_at":"2026-05-18T02:36:56.920841Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:36:56.920841Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/9812384","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":"2026-05-18T02:36:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fvoUAWJqkCtczRCb/vsdd2g1uHxIGhKSpq6fFPUvVN0lS8PnuSf9ZPyoP6u1rHKh2ZHPKaziYsOCe36LIXFxDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T10:38:17.139178Z"},"content_sha256":"1fef57776b5b6dee56dbe9d2ee958fa892604cdbb48d0d08b2e408ddcf7d3e44","schema_version":"1.0","event_id":"sha256:1fef57776b5b6dee56dbe9d2ee958fa892604cdbb48d0d08b2e408ddcf7d3e44"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1998:5IM4MZBYLI4EH4OJ4ZHGPBZMFB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Precise tests of a quark mass texture","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Andrea Romanino, Lawrence J. Hall, Riccardo Barbieri","submitted_at":"1998-12-16T12:00:51Z","abstract_excerpt":"The relations $|V_{ub}/V_{cb}|=(m_u/m_c)^{1/2}$ and $|V_{td}/V_{ts}|=(m_d/m_s)^{1/2}$ between the CKM matrix elements and the quark masses are shown to imply a remarkably precise determination of the CKM unitarity triangle or of the Wolfenstein parameters $\\rho$, $\\eta$ consistent with the data so far. We view this as a clean test of a quark mass texture neatly arising from a hierarchical breaking of a U(2) flavour symmetry."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9812384","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":"2026-05-18T02:36:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ir8v9tM6I6w1TjjuVJnPZ51v8v5Lj93TVM3J321kjQrUZl29hRHmiRjYBGheuroeLGm3ma4RY9dt76qA6lppCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T10:38:17.139564Z"},"content_sha256":"22561e82a820873425c15caf6daedfb2803aac22c7a0f382fe5547d8635a2835","schema_version":"1.0","event_id":"sha256:22561e82a820873425c15caf6daedfb2803aac22c7a0f382fe5547d8635a2835"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5IM4MZBYLI4EH4OJ4ZHGPBZMFB/bundle.json","state_url":"https://pith.science/pith/5IM4MZBYLI4EH4OJ4ZHGPBZMFB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5IM4MZBYLI4EH4OJ4ZHGPBZMFB/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":"2026-05-26T10:38:17Z","links":{"resolver":"https://pith.science/pith/5IM4MZBYLI4EH4OJ4ZHGPBZMFB","bundle":"https://pith.science/pith/5IM4MZBYLI4EH4OJ4ZHGPBZMFB/bundle.json","state":"https://pith.science/pith/5IM4MZBYLI4EH4OJ4ZHGPBZMFB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5IM4MZBYLI4EH4OJ4ZHGPBZMFB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:5IM4MZBYLI4EH4OJ4ZHGPBZMFB","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":"765097ee07581187b3176d1aa9865e79e4106b3ddfb078e947d36d5588e2c6ef","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1998-12-16T12:00:51Z","title_canon_sha256":"62df90a9d81c36f6586f9dad3b2b0078485045c13585205d5bc99eebc8f1f363"},"schema_version":"1.0","source":{"id":"hep-ph/9812384","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9812384","created_at":"2026-05-18T02:36:56Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9812384v2","created_at":"2026-05-18T02:36:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9812384","created_at":"2026-05-18T02:36:56Z"},{"alias_kind":"pith_short_12","alias_value":"5IM4MZBYLI4E","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"5IM4MZBYLI4EH4OJ","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"5IM4MZBY","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:22561e82a820873425c15caf6daedfb2803aac22c7a0f382fe5547d8635a2835","target":"graph","created_at":"2026-05-18T02:36:56Z","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 relations $|V_{ub}/V_{cb}|=(m_u/m_c)^{1/2}$ and $|V_{td}/V_{ts}|=(m_d/m_s)^{1/2}$ between the CKM matrix elements and the quark masses are shown to imply a remarkably precise determination of the CKM unitarity triangle or of the Wolfenstein parameters $\\rho$, $\\eta$ consistent with the data so far. We view this as a clean test of a quark mass texture neatly arising from a hierarchical breaking of a U(2) flavour symmetry.","authors_text":"Andrea Romanino, Lawrence J. Hall, Riccardo Barbieri","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"1998-12-16T12:00:51Z","title":"Precise tests of a quark mass texture"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9812384","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":"sha256:1fef57776b5b6dee56dbe9d2ee958fa892604cdbb48d0d08b2e408ddcf7d3e44","target":"record","created_at":"2026-05-18T02:36:56Z","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":"765097ee07581187b3176d1aa9865e79e4106b3ddfb078e947d36d5588e2c6ef","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1998-12-16T12:00:51Z","title_canon_sha256":"62df90a9d81c36f6586f9dad3b2b0078485045c13585205d5bc99eebc8f1f363"},"schema_version":"1.0","source":{"id":"hep-ph/9812384","kind":"arxiv","version":2}},"canonical_sha256":"ea19c664385a3843f1c9e64e67872c2859d07b6bd792f926e744a6fb7de59125","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ea19c664385a3843f1c9e64e67872c2859d07b6bd792f926e744a6fb7de59125","first_computed_at":"2026-05-18T02:36:56.920841Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:36:56.920841Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1xE/UR4V30pSkRCnNRp/fhbvfn4eCLw5nQEhCod8d2MfeTEeKi/BEZWx0pQ1GZC395pDHVE05+/OoNWXIw0rBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:36:56.921745Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/9812384","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1fef57776b5b6dee56dbe9d2ee958fa892604cdbb48d0d08b2e408ddcf7d3e44","sha256:22561e82a820873425c15caf6daedfb2803aac22c7a0f382fe5547d8635a2835"],"state_sha256":"29a648b29fc4e02fb43ec5996d7b65758221239af1304b2f8176335539539f7d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oDuaDTHT8YT8ZNFXAS9vMUxwyZOAOi3bp6KM6XTTODoUt9QsY68ZU1erCStZ2+vODZw2HTj3Dhgrlxtv5KZ6Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T10:38:17.142005Z","bundle_sha256":"e55723923dbd9efe6b7e0e053004f03bd49229c7f8dce65ee3e5357034a9193a"}}