{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:7G6KZT52I36LOCJC4AIFL6DI23","short_pith_number":"pith:7G6KZT52","canonical_record":{"source":{"id":"1402.0827","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2014-02-04T18:46:57Z","cross_cats_sorted":[],"title_canon_sha256":"67dc42f385b28640a819565650d5bc5f1153c46754e6388a64c46174c24b2b00","abstract_canon_sha256":"66e0964e34f99e301d31d2351165dfed50e9c24a0dc7967fcc1de61a7291c153"},"schema_version":"1.0"},"canonical_sha256":"f9bcaccfba46fcb70922e01055f868d6f322fec9be4fb1e9aeb4757eb7bdae84","source":{"kind":"arxiv","id":"1402.0827","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.0827","created_at":"2026-05-18T01:11:25Z"},{"alias_kind":"arxiv_version","alias_value":"1402.0827v2","created_at":"2026-05-18T01:11:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.0827","created_at":"2026-05-18T01:11:25Z"},{"alias_kind":"pith_short_12","alias_value":"7G6KZT52I36L","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"7G6KZT52I36LOCJC","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"7G6KZT52","created_at":"2026-05-18T12:28:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:7G6KZT52I36LOCJC4AIFL6DI23","target":"record","payload":{"canonical_record":{"source":{"id":"1402.0827","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2014-02-04T18:46:57Z","cross_cats_sorted":[],"title_canon_sha256":"67dc42f385b28640a819565650d5bc5f1153c46754e6388a64c46174c24b2b00","abstract_canon_sha256":"66e0964e34f99e301d31d2351165dfed50e9c24a0dc7967fcc1de61a7291c153"},"schema_version":"1.0"},"canonical_sha256":"f9bcaccfba46fcb70922e01055f868d6f322fec9be4fb1e9aeb4757eb7bdae84","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:11:25.487636Z","signature_b64":"TR7SkY1Ne+I5u+TGmSc5wHnx/Ziw6AeNPBew+X6f8UnhytVIsbTcsxOKBLgwHnjglxTYW922Ea5ct+BPExPTDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f9bcaccfba46fcb70922e01055f868d6f322fec9be4fb1e9aeb4757eb7bdae84","last_reissued_at":"2026-05-18T01:11:25.487203Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:11:25.487203Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1402.0827","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":"2026-05-18T01:11:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XyNGJI972uNgNLOF2Y7X91WcdE57x/Pmh7qPZdVCmuly75KjazWhSECsJy0cgs6fwPOKZ06+p6xNj89vh/kzCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T10:46:42.472662Z"},"content_sha256":"8911e051d5cce248a63646a8a8c94fa4dc0769cea9e91b47f617dfa5222d8b16","schema_version":"1.0","event_id":"sha256:8911e051d5cce248a63646a8a8c94fa4dc0769cea9e91b47f617dfa5222d8b16"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:7G6KZT52I36LOCJC4AIFL6DI23","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Exploring the role of the charm quark in the $\\Delta I=1/2$ rule","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-lat","authors_text":"Carlos Pena, Eric Endress","submitted_at":"2014-02-04T18:46:57Z","abstract_excerpt":"We study the dependence on the charm quark mass of the leading-order low-energy constants of the $\\Delta S=1$ effective Hamiltonian, with the aim of elucidating the role of the charm mass scale in the $\\Delta I=1/2$ rule for $K\\to\\pi\\pi$ decay. To that purpose, finite-volume Chiral Perturbation Theory predictions are matched to QCD simulations, performed in the quenched approximation with overlap fermions and $m_u=m_d=m_s$. Light quark masses range between a few MeV up to around one third of the physical strange mass, while charm masses range between $m_u$ and a few hundred MeV. Novel variance"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.0827","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":"2026-05-18T01:11:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DfqsYVGo1oFfT9buYMbTd/YXI9ruNohGIy9RPso644Uy2K3ROZjXoeT29Y2NWHfi13VJ5Pkocw2kYAwrwS6NCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T10:46:42.473008Z"},"content_sha256":"7f3d00145995646210b7126b37a920739c3c2d619384abb8bcaa1b44212cf1b6","schema_version":"1.0","event_id":"sha256:7f3d00145995646210b7126b37a920739c3c2d619384abb8bcaa1b44212cf1b6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7G6KZT52I36LOCJC4AIFL6DI23/bundle.json","state_url":"https://pith.science/pith/7G6KZT52I36LOCJC4AIFL6DI23/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7G6KZT52I36LOCJC4AIFL6DI23/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":"2026-06-22T10:46:42Z","links":{"resolver":"https://pith.science/pith/7G6KZT52I36LOCJC4AIFL6DI23","bundle":"https://pith.science/pith/7G6KZT52I36LOCJC4AIFL6DI23/bundle.json","state":"https://pith.science/pith/7G6KZT52I36LOCJC4AIFL6DI23/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7G6KZT52I36LOCJC4AIFL6DI23/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:7G6KZT52I36LOCJC4AIFL6DI23","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":"66e0964e34f99e301d31d2351165dfed50e9c24a0dc7967fcc1de61a7291c153","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2014-02-04T18:46:57Z","title_canon_sha256":"67dc42f385b28640a819565650d5bc5f1153c46754e6388a64c46174c24b2b00"},"schema_version":"1.0","source":{"id":"1402.0827","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.0827","created_at":"2026-05-18T01:11:25Z"},{"alias_kind":"arxiv_version","alias_value":"1402.0827v2","created_at":"2026-05-18T01:11:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.0827","created_at":"2026-05-18T01:11:25Z"},{"alias_kind":"pith_short_12","alias_value":"7G6KZT52I36L","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"7G6KZT52I36LOCJC","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"7G6KZT52","created_at":"2026-05-18T12:28:16Z"}],"graph_snapshots":[{"event_id":"sha256:7f3d00145995646210b7126b37a920739c3c2d619384abb8bcaa1b44212cf1b6","target":"graph","created_at":"2026-05-18T01:11:25Z","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 study the dependence on the charm quark mass of the leading-order low-energy constants of the $\\Delta S=1$ effective Hamiltonian, with the aim of elucidating the role of the charm mass scale in the $\\Delta I=1/2$ rule for $K\\to\\pi\\pi$ decay. To that purpose, finite-volume Chiral Perturbation Theory predictions are matched to QCD simulations, performed in the quenched approximation with overlap fermions and $m_u=m_d=m_s$. Light quark masses range between a few MeV up to around one third of the physical strange mass, while charm masses range between $m_u$ and a few hundred MeV. Novel variance","authors_text":"Carlos Pena, Eric Endress","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2014-02-04T18:46:57Z","title":"Exploring the role of the charm quark in the $\\Delta I=1/2$ rule"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.0827","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":"sha256:8911e051d5cce248a63646a8a8c94fa4dc0769cea9e91b47f617dfa5222d8b16","target":"record","created_at":"2026-05-18T01:11:25Z","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":"66e0964e34f99e301d31d2351165dfed50e9c24a0dc7967fcc1de61a7291c153","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2014-02-04T18:46:57Z","title_canon_sha256":"67dc42f385b28640a819565650d5bc5f1153c46754e6388a64c46174c24b2b00"},"schema_version":"1.0","source":{"id":"1402.0827","kind":"arxiv","version":2}},"canonical_sha256":"f9bcaccfba46fcb70922e01055f868d6f322fec9be4fb1e9aeb4757eb7bdae84","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f9bcaccfba46fcb70922e01055f868d6f322fec9be4fb1e9aeb4757eb7bdae84","first_computed_at":"2026-05-18T01:11:25.487203Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:11:25.487203Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TR7SkY1Ne+I5u+TGmSc5wHnx/Ziw6AeNPBew+X6f8UnhytVIsbTcsxOKBLgwHnjglxTYW922Ea5ct+BPExPTDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:11:25.487636Z","signed_message":"canonical_sha256_bytes"},"source_id":"1402.0827","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8911e051d5cce248a63646a8a8c94fa4dc0769cea9e91b47f617dfa5222d8b16","sha256:7f3d00145995646210b7126b37a920739c3c2d619384abb8bcaa1b44212cf1b6"],"state_sha256":"e46fefbdcdf89070b2d6385262eecfc27dbbe6cd9142fa71489d855b4b5a6450"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BTOGiDW/DLaaV8Zl4OVxVPLwpoqH7qfUJcgqrgDce/O5zkRXKvsj/ozbbHJAOA/mmR9c+ypwil8iX38ZjjxxBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-22T10:46:42.474971Z","bundle_sha256":"5b3e986045903a75b8cd4b16493119b73130326151189aa091a3137f29601598"}}