{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:QCWIAAHEIY6T3YCIDV2H6PAKZM","short_pith_number":"pith:QCWIAAHE","canonical_record":{"source":{"id":"2005.05978","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-05-12T18:00:02Z","cross_cats_sorted":["hep-ex","hep-lat"],"title_canon_sha256":"eab32559872483c5d0c6b0bca2cb763959bc0add7195a9e4ddf3fa7a5137710d","abstract_canon_sha256":"1e2747d4f2136f7dab4a51a55000711f6715322e7427b56d0a1498eb7de6f337"},"schema_version":"1.0"},"canonical_sha256":"80ac8000e4463d3de0481d747f3c0acb20cd7f241777bc4b63b51bf339dc0880","source":{"kind":"arxiv","id":"2005.05978","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2005.05978","created_at":"2026-07-05T01:30:03Z"},{"alias_kind":"arxiv_version","alias_value":"2005.05978v2","created_at":"2026-07-05T01:30:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.05978","created_at":"2026-07-05T01:30:03Z"},{"alias_kind":"pith_short_12","alias_value":"QCWIAAHEIY6T","created_at":"2026-07-05T01:30:03Z"},{"alias_kind":"pith_short_16","alias_value":"QCWIAAHEIY6T3YCI","created_at":"2026-07-05T01:30:03Z"},{"alias_kind":"pith_short_8","alias_value":"QCWIAAHE","created_at":"2026-07-05T01:30:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:QCWIAAHEIY6T3YCIDV2H6PAKZM","target":"record","payload":{"canonical_record":{"source":{"id":"2005.05978","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-05-12T18:00:02Z","cross_cats_sorted":["hep-ex","hep-lat"],"title_canon_sha256":"eab32559872483c5d0c6b0bca2cb763959bc0add7195a9e4ddf3fa7a5137710d","abstract_canon_sha256":"1e2747d4f2136f7dab4a51a55000711f6715322e7427b56d0a1498eb7de6f337"},"schema_version":"1.0"},"canonical_sha256":"80ac8000e4463d3de0481d747f3c0acb20cd7f241777bc4b63b51bf339dc0880","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:30:03.479556Z","signature_b64":"4TtkpydkF6++2GI1OW22xlSSCedwxA4k24xxUpvDunSyjba2uqfG544qJfjw/fUw5XTpH3a6wxWE0xB9fOfwCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"80ac8000e4463d3de0481d747f3c0acb20cd7f241777bc4b63b51bf339dc0880","last_reissued_at":"2026-07-05T01:30:03.479092Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:30:03.479092Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2005.05978","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":"2026-07-05T01:30:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dynZt1c/EGYK77dAd58LyoP1p8jQmLQGCSX54UPWFw6md/rddskirPT7iNAiymIFXknjlLyeSZa//Ra/mwViBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T02:31:57.968340Z"},"content_sha256":"8badf89249516f794bb034071b3ab3e70f91187df305c43e04d6a98d614d7e4b","schema_version":"1.0","event_id":"sha256:8badf89249516f794bb034071b3ab3e70f91187df305c43e04d6a98d614d7e4b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:QCWIAAHEIY6T3YCIDV2H6PAKZM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"$\\varepsilon'/\\varepsilon$ in the Standard Model at the Dawn of the 2020s","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","hep-lat"],"primary_cat":"hep-ph","authors_text":"Andrzej J. Buras, Christoph Bobeth, Jason Aebischer","submitted_at":"2020-05-12T18:00:02Z","abstract_excerpt":"We reanalyse the ratio $\\varepsilon'/\\varepsilon$ in the Standard Model (SM) using most recent hadronic matrix elements from the RBC-UKQCD collaboration in combination with most important NNLO QCD corrections to electroweak penguin contributions and the isospin-breaking corrections. We illustrate the importance of the latter by using their latest estimate from chiral perturbation theory (ChPT) based on the $octet$ approximation for lowest-lying mesons and a very recent estimate in the $nonet$ scheme that takes into account the contribution of $\\eta_0$. We find $(\\varepsilon'/\\varepsilon)^{(8)}"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.05978","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2005.05978/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T01:30:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PuW5rGFY2sTqLwOsaY3gI3aTr0jDcygJQfvEVnYhQWqvYpzuJUZ88PXOwJHTIgzuasbcjM9XcaNxSwsEyBCwAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T02:31:57.968935Z"},"content_sha256":"585c6d906c06b6e1a85fd9d1f303bfb4215af602e74bd21af1c9238cc07ad431","schema_version":"1.0","event_id":"sha256:585c6d906c06b6e1a85fd9d1f303bfb4215af602e74bd21af1c9238cc07ad431"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QCWIAAHEIY6T3YCIDV2H6PAKZM/bundle.json","state_url":"https://pith.science/pith/QCWIAAHEIY6T3YCIDV2H6PAKZM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QCWIAAHEIY6T3YCIDV2H6PAKZM/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":"2026-08-07T02:31:57Z","links":{"resolver":"https://pith.science/pith/QCWIAAHEIY6T3YCIDV2H6PAKZM","bundle":"https://pith.science/pith/QCWIAAHEIY6T3YCIDV2H6PAKZM/bundle.json","state":"https://pith.science/pith/QCWIAAHEIY6T3YCIDV2H6PAKZM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QCWIAAHEIY6T3YCIDV2H6PAKZM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:QCWIAAHEIY6T3YCIDV2H6PAKZM","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":"1e2747d4f2136f7dab4a51a55000711f6715322e7427b56d0a1498eb7de6f337","cross_cats_sorted":["hep-ex","hep-lat"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-05-12T18:00:02Z","title_canon_sha256":"eab32559872483c5d0c6b0bca2cb763959bc0add7195a9e4ddf3fa7a5137710d"},"schema_version":"1.0","source":{"id":"2005.05978","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2005.05978","created_at":"2026-07-05T01:30:03Z"},{"alias_kind":"arxiv_version","alias_value":"2005.05978v2","created_at":"2026-07-05T01:30:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.05978","created_at":"2026-07-05T01:30:03Z"},{"alias_kind":"pith_short_12","alias_value":"QCWIAAHEIY6T","created_at":"2026-07-05T01:30:03Z"},{"alias_kind":"pith_short_16","alias_value":"QCWIAAHEIY6T3YCI","created_at":"2026-07-05T01:30:03Z"},{"alias_kind":"pith_short_8","alias_value":"QCWIAAHE","created_at":"2026-07-05T01:30:03Z"}],"graph_snapshots":[{"event_id":"sha256:585c6d906c06b6e1a85fd9d1f303bfb4215af602e74bd21af1c9238cc07ad431","target":"graph","created_at":"2026-07-05T01:30:03Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2005.05978/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We reanalyse the ratio $\\varepsilon'/\\varepsilon$ in the Standard Model (SM) using most recent hadronic matrix elements from the RBC-UKQCD collaboration in combination with most important NNLO QCD corrections to electroweak penguin contributions and the isospin-breaking corrections. We illustrate the importance of the latter by using their latest estimate from chiral perturbation theory (ChPT) based on the $octet$ approximation for lowest-lying mesons and a very recent estimate in the $nonet$ scheme that takes into account the contribution of $\\eta_0$. We find $(\\varepsilon'/\\varepsilon)^{(8)}","authors_text":"Andrzej J. Buras, Christoph Bobeth, Jason Aebischer","cross_cats":["hep-ex","hep-lat"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-05-12T18:00:02Z","title":"$\\varepsilon'/\\varepsilon$ in the Standard Model at the Dawn of the 2020s"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.05978","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":"sha256:8badf89249516f794bb034071b3ab3e70f91187df305c43e04d6a98d614d7e4b","target":"record","created_at":"2026-07-05T01:30:03Z","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":"1e2747d4f2136f7dab4a51a55000711f6715322e7427b56d0a1498eb7de6f337","cross_cats_sorted":["hep-ex","hep-lat"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-05-12T18:00:02Z","title_canon_sha256":"eab32559872483c5d0c6b0bca2cb763959bc0add7195a9e4ddf3fa7a5137710d"},"schema_version":"1.0","source":{"id":"2005.05978","kind":"arxiv","version":2}},"canonical_sha256":"80ac8000e4463d3de0481d747f3c0acb20cd7f241777bc4b63b51bf339dc0880","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"80ac8000e4463d3de0481d747f3c0acb20cd7f241777bc4b63b51bf339dc0880","first_computed_at":"2026-07-05T01:30:03.479092Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:30:03.479092Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4TtkpydkF6++2GI1OW22xlSSCedwxA4k24xxUpvDunSyjba2uqfG544qJfjw/fUw5XTpH3a6wxWE0xB9fOfwCg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:30:03.479556Z","signed_message":"canonical_sha256_bytes"},"source_id":"2005.05978","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8badf89249516f794bb034071b3ab3e70f91187df305c43e04d6a98d614d7e4b","sha256:585c6d906c06b6e1a85fd9d1f303bfb4215af602e74bd21af1c9238cc07ad431"],"state_sha256":"915e23150c2cd8794e84c4d33d5c5eaad191c280dfee32bc6840c1fef780e3fd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ll0AOnDS+Ccot9R1fctaIAvWIiKflHomwsTIJVC79KCvwSeP/XN6N81KtnQ2Da9BZAPJoj3ZEE6xnr3+YwvIDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T02:31:57.981158Z","bundle_sha256":"a20db556eb29032af87b3fddd54ba7c1331b8d3b351d33a911e6c3c7761b247b"}}