{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:O5JSLVYOBCDZ7PRKEXVAJDSLC7","short_pith_number":"pith:O5JSLVYO","canonical_record":{"source":{"id":"hep-ph/0002173","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2000-02-16T11:46:37Z","cross_cats_sorted":[],"title_canon_sha256":"3e3098c701f2890792b050290c116fe0c30aba1d7f09e582c02283fed619278a","abstract_canon_sha256":"1ccc879354d724abf5bcf9514bf1d9ca197322b0fff8204de9f2b196263ed3d9"},"schema_version":"1.0"},"canonical_sha256":"775325d70e08879fbe2a25ea048e4b17cb9c910389f6c93dbc313d2a6f718b03","source":{"kind":"arxiv","id":"hep-ph/0002173","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0002173","created_at":"2026-05-18T00:57:06Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0002173v1","created_at":"2026-05-18T00:57:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0002173","created_at":"2026-05-18T00:57:06Z"},{"alias_kind":"pith_short_12","alias_value":"O5JSLVYOBCDZ","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"O5JSLVYOBCDZ7PRK","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"O5JSLVYO","created_at":"2026-05-18T12:25:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:O5JSLVYOBCDZ7PRKEXVAJDSLC7","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/0002173","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2000-02-16T11:46:37Z","cross_cats_sorted":[],"title_canon_sha256":"3e3098c701f2890792b050290c116fe0c30aba1d7f09e582c02283fed619278a","abstract_canon_sha256":"1ccc879354d724abf5bcf9514bf1d9ca197322b0fff8204de9f2b196263ed3d9"},"schema_version":"1.0"},"canonical_sha256":"775325d70e08879fbe2a25ea048e4b17cb9c910389f6c93dbc313d2a6f718b03","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:57:06.165354Z","signature_b64":"ZUOOrS8DJTNSgzdxePW0v6iV2ZGy/W/fGgVryj+/VRWjYUbn6ob1uhBJTNMonHPB2zYxkbAs0djODMVQcb8TAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"775325d70e08879fbe2a25ea048e4b17cb9c910389f6c93dbc313d2a6f718b03","last_reissued_at":"2026-05-18T00:57:06.164698Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:57:06.164698Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/0002173","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":"2026-05-18T00:57:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZhBvK28jGeHfhjSs+tDfy/5kI8nBdSq2S5TFgoBmPZUQxzJHk0o/DIvmec8CRx47itWpMtVnb9K1xeO/0Y78DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T07:24:50.062415Z"},"content_sha256":"215cda4364f55d61ff007b54659e4796b1d21bfca6b749a30d461012f82f978e","schema_version":"1.0","event_id":"sha256:215cda4364f55d61ff007b54659e4796b1d21bfca6b749a30d461012f82f978e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:O5JSLVYOBCDZ7PRKEXVAJDSLC7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Is it possible to Measure the Weak Phase of a Penguin Diagram?","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"D. London, N. Sinha, R. Sinha","submitted_at":"2000-02-16T11:46:37Z","abstract_excerpt":"The $b\\to d$ penguin amplitude receives contributions from internal $u$, $c$ and $t$-quarks. We show that it is impossible to measure the weak phase of any of these penguin contributions without theoretical input. However, a single assumption involving the hadronic parameters makes it possible to obtain the weak phase and test for the presence of new physics in the $b\\to d$ flavour-changing neutral current."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0002173","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":"2026-05-18T00:57:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pnkuRyZMpO0hvN8dRlBohIj4379GHWocb31Z5PZjM7CCRKgkfayYaJL0H/grYSGLH+yF9T+519MruWemivywBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T07:24:50.063085Z"},"content_sha256":"4c5e203400755e9fb45a5829d832dd49fda3a794ec2e6a0c1bb926a7c9ffa3a8","schema_version":"1.0","event_id":"sha256:4c5e203400755e9fb45a5829d832dd49fda3a794ec2e6a0c1bb926a7c9ffa3a8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/O5JSLVYOBCDZ7PRKEXVAJDSLC7/bundle.json","state_url":"https://pith.science/pith/O5JSLVYOBCDZ7PRKEXVAJDSLC7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/O5JSLVYOBCDZ7PRKEXVAJDSLC7/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":"2026-05-26T07:24:50Z","links":{"resolver":"https://pith.science/pith/O5JSLVYOBCDZ7PRKEXVAJDSLC7","bundle":"https://pith.science/pith/O5JSLVYOBCDZ7PRKEXVAJDSLC7/bundle.json","state":"https://pith.science/pith/O5JSLVYOBCDZ7PRKEXVAJDSLC7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/O5JSLVYOBCDZ7PRKEXVAJDSLC7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:O5JSLVYOBCDZ7PRKEXVAJDSLC7","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":"1ccc879354d724abf5bcf9514bf1d9ca197322b0fff8204de9f2b196263ed3d9","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2000-02-16T11:46:37Z","title_canon_sha256":"3e3098c701f2890792b050290c116fe0c30aba1d7f09e582c02283fed619278a"},"schema_version":"1.0","source":{"id":"hep-ph/0002173","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0002173","created_at":"2026-05-18T00:57:06Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0002173v1","created_at":"2026-05-18T00:57:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0002173","created_at":"2026-05-18T00:57:06Z"},{"alias_kind":"pith_short_12","alias_value":"O5JSLVYOBCDZ","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"O5JSLVYOBCDZ7PRK","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"O5JSLVYO","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:4c5e203400755e9fb45a5829d832dd49fda3a794ec2e6a0c1bb926a7c9ffa3a8","target":"graph","created_at":"2026-05-18T00:57:06Z","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 $b\\to d$ penguin amplitude receives contributions from internal $u$, $c$ and $t$-quarks. We show that it is impossible to measure the weak phase of any of these penguin contributions without theoretical input. However, a single assumption involving the hadronic parameters makes it possible to obtain the weak phase and test for the presence of new physics in the $b\\to d$ flavour-changing neutral current.","authors_text":"D. London, N. Sinha, R. Sinha","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2000-02-16T11:46:37Z","title":"Is it possible to Measure the Weak Phase of a Penguin Diagram?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0002173","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":"sha256:215cda4364f55d61ff007b54659e4796b1d21bfca6b749a30d461012f82f978e","target":"record","created_at":"2026-05-18T00:57:06Z","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":"1ccc879354d724abf5bcf9514bf1d9ca197322b0fff8204de9f2b196263ed3d9","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2000-02-16T11:46:37Z","title_canon_sha256":"3e3098c701f2890792b050290c116fe0c30aba1d7f09e582c02283fed619278a"},"schema_version":"1.0","source":{"id":"hep-ph/0002173","kind":"arxiv","version":1}},"canonical_sha256":"775325d70e08879fbe2a25ea048e4b17cb9c910389f6c93dbc313d2a6f718b03","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"775325d70e08879fbe2a25ea048e4b17cb9c910389f6c93dbc313d2a6f718b03","first_computed_at":"2026-05-18T00:57:06.164698Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:57:06.164698Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZUOOrS8DJTNSgzdxePW0v6iV2ZGy/W/fGgVryj+/VRWjYUbn6ob1uhBJTNMonHPB2zYxkbAs0djODMVQcb8TAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:57:06.165354Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/0002173","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:215cda4364f55d61ff007b54659e4796b1d21bfca6b749a30d461012f82f978e","sha256:4c5e203400755e9fb45a5829d832dd49fda3a794ec2e6a0c1bb926a7c9ffa3a8"],"state_sha256":"bf4aa2c47f5d27df42237b0d7f28e41e84b623d7e5924a9ebd7196940b0d09bd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Hr3HAYzIpoMSeRcVCgHQiO+g0QsiBsLZd71ZSmZi84Zv9hBAbfrlBXApGxMBqIm4OCoQEyoVC4eQ4j5vtIKfBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T07:24:50.066974Z","bundle_sha256":"ae762533bcbb9c75f1adbdbf3e7ff4e352adcf5122fb4b44d64333c415b39d89"}}