{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:WGR7D7GAITG2UJCPNLKBGNLVHP","short_pith_number":"pith:WGR7D7GA","canonical_record":{"source":{"id":"0812.2030","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2008-12-10T21:10:48Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"4dd15dd95daee525108e5186dff4c49491dccc0d3989fef8d39e3d75588a8796","abstract_canon_sha256":"d815da9128bae26c3aa28804c4609d00cc79f71103b5f4cd8a28d60de8311cf6"},"schema_version":"1.0"},"canonical_sha256":"b1a3f1fcc044cdaa244f6ad41335753bf591ddfd95eb98794353ed1787e31354","source":{"kind":"arxiv","id":"0812.2030","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0812.2030","created_at":"2026-07-04T15:37:23Z"},{"alias_kind":"arxiv_version","alias_value":"0812.2030v1","created_at":"2026-07-04T15:37:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0812.2030","created_at":"2026-07-04T15:37:23Z"},{"alias_kind":"pith_short_12","alias_value":"WGR7D7GAITG2","created_at":"2026-07-04T15:37:23Z"},{"alias_kind":"pith_short_16","alias_value":"WGR7D7GAITG2UJCP","created_at":"2026-07-04T15:37:23Z"},{"alias_kind":"pith_short_8","alias_value":"WGR7D7GA","created_at":"2026-07-04T15:37:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:WGR7D7GAITG2UJCPNLKBGNLVHP","target":"record","payload":{"canonical_record":{"source":{"id":"0812.2030","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2008-12-10T21:10:48Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"4dd15dd95daee525108e5186dff4c49491dccc0d3989fef8d39e3d75588a8796","abstract_canon_sha256":"d815da9128bae26c3aa28804c4609d00cc79f71103b5f4cd8a28d60de8311cf6"},"schema_version":"1.0"},"canonical_sha256":"b1a3f1fcc044cdaa244f6ad41335753bf591ddfd95eb98794353ed1787e31354","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:37:23.872298Z","signature_b64":"5CK/uPQLXResv1SKbWRzoVECia1qidjzh0GBOey3MbMsfRJf0xZ421yfPNO0II5b2F5DH02u6xzWl2FVKv6rAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b1a3f1fcc044cdaa244f6ad41335753bf591ddfd95eb98794353ed1787e31354","last_reissued_at":"2026-07-04T15:37:23.871845Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:37:23.871845Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0812.2030","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":"2026-07-04T15:37:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7V5+d+hYZ7Sk89pg5vLXLpqFJBepsGph94a40GhgA8f9uRkRY/Q8EEEGDbA0C8vC1KXpqSYsMC6zcXFal76FCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T18:56:24.259763Z"},"content_sha256":"be6059eb399553e9d0650e2aa9141916f93deea4a50014d80f2f1920eb0c6392","schema_version":"1.0","event_id":"sha256:be6059eb399553e9d0650e2aa9141916f93deea4a50014d80f2f1920eb0c6392"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:WGR7D7GAITG2UJCPNLKBGNLVHP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Non-Standard Physics in Leptonic and Semileptonic Decays of Charmed Mesons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-lat","authors_text":"Andreas S. Kronfeld","submitted_at":"2008-12-10T21:10:48Z","abstract_excerpt":"Recent measurements of the branching fraction for D_s -> l nu disagree with the Standard Model expectation, which relies on calculations of $f_{D_s}$ from lattice QCD. This paper uses recent preliminary measurements from CLEO and a new preliminary lattice-QCD result from this conference to update the significance of the discrepancy. The \"f_{D_s} puzzle\" stands now at 3.5sigma, with sigma predominantly from the statistical uncertainty of the experiments. New physics scenarios that could solve the puzzle would also lead to non-Standard amplitudes mediating the semileptonic decays D -> K l nu. Th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0812.2030","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0812.2030/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":"2026-07-04T15:37:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hc8fnsB08WiOgiRrnyUinoU3gFXzGinvSUHdvQBVeDyk1bqrN6au1oksBHE/tJWhIehM9WebXk9pp1KeWo/eBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T18:56:24.260907Z"},"content_sha256":"1943cc9fc800234bf11474d7df272937392b777b9025ca1d65dc3b0afd43c74e","schema_version":"1.0","event_id":"sha256:1943cc9fc800234bf11474d7df272937392b777b9025ca1d65dc3b0afd43c74e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WGR7D7GAITG2UJCPNLKBGNLVHP/bundle.json","state_url":"https://pith.science/pith/WGR7D7GAITG2UJCPNLKBGNLVHP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WGR7D7GAITG2UJCPNLKBGNLVHP/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":"2026-08-06T18:56:24Z","links":{"resolver":"https://pith.science/pith/WGR7D7GAITG2UJCPNLKBGNLVHP","bundle":"https://pith.science/pith/WGR7D7GAITG2UJCPNLKBGNLVHP/bundle.json","state":"https://pith.science/pith/WGR7D7GAITG2UJCPNLKBGNLVHP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WGR7D7GAITG2UJCPNLKBGNLVHP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:WGR7D7GAITG2UJCPNLKBGNLVHP","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":"d815da9128bae26c3aa28804c4609d00cc79f71103b5f4cd8a28d60de8311cf6","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2008-12-10T21:10:48Z","title_canon_sha256":"4dd15dd95daee525108e5186dff4c49491dccc0d3989fef8d39e3d75588a8796"},"schema_version":"1.0","source":{"id":"0812.2030","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0812.2030","created_at":"2026-07-04T15:37:23Z"},{"alias_kind":"arxiv_version","alias_value":"0812.2030v1","created_at":"2026-07-04T15:37:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0812.2030","created_at":"2026-07-04T15:37:23Z"},{"alias_kind":"pith_short_12","alias_value":"WGR7D7GAITG2","created_at":"2026-07-04T15:37:23Z"},{"alias_kind":"pith_short_16","alias_value":"WGR7D7GAITG2UJCP","created_at":"2026-07-04T15:37:23Z"},{"alias_kind":"pith_short_8","alias_value":"WGR7D7GA","created_at":"2026-07-04T15:37:23Z"}],"graph_snapshots":[{"event_id":"sha256:1943cc9fc800234bf11474d7df272937392b777b9025ca1d65dc3b0afd43c74e","target":"graph","created_at":"2026-07-04T15:37:23Z","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/0812.2030/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Recent measurements of the branching fraction for D_s -> l nu disagree with the Standard Model expectation, which relies on calculations of $f_{D_s}$ from lattice QCD. This paper uses recent preliminary measurements from CLEO and a new preliminary lattice-QCD result from this conference to update the significance of the discrepancy. The \"f_{D_s} puzzle\" stands now at 3.5sigma, with sigma predominantly from the statistical uncertainty of the experiments. New physics scenarios that could solve the puzzle would also lead to non-Standard amplitudes mediating the semileptonic decays D -> K l nu. Th","authors_text":"Andreas S. Kronfeld","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2008-12-10T21:10:48Z","title":"Non-Standard Physics in Leptonic and Semileptonic Decays of Charmed Mesons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0812.2030","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:be6059eb399553e9d0650e2aa9141916f93deea4a50014d80f2f1920eb0c6392","target":"record","created_at":"2026-07-04T15:37:23Z","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":"d815da9128bae26c3aa28804c4609d00cc79f71103b5f4cd8a28d60de8311cf6","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2008-12-10T21:10:48Z","title_canon_sha256":"4dd15dd95daee525108e5186dff4c49491dccc0d3989fef8d39e3d75588a8796"},"schema_version":"1.0","source":{"id":"0812.2030","kind":"arxiv","version":1}},"canonical_sha256":"b1a3f1fcc044cdaa244f6ad41335753bf591ddfd95eb98794353ed1787e31354","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b1a3f1fcc044cdaa244f6ad41335753bf591ddfd95eb98794353ed1787e31354","first_computed_at":"2026-07-04T15:37:23.871845Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:37:23.871845Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5CK/uPQLXResv1SKbWRzoVECia1qidjzh0GBOey3MbMsfRJf0xZ421yfPNO0II5b2F5DH02u6xzWl2FVKv6rAQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:37:23.872298Z","signed_message":"canonical_sha256_bytes"},"source_id":"0812.2030","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:be6059eb399553e9d0650e2aa9141916f93deea4a50014d80f2f1920eb0c6392","sha256:1943cc9fc800234bf11474d7df272937392b777b9025ca1d65dc3b0afd43c74e"],"state_sha256":"8490f671921206e1dd8683572da7f92edb8adbb47f8dee33d1d6bf8cc7016ef8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0x7xTCGyYRG5GkEOila4khI6dmuD54AkuPIANsxHj4LreHDQygzvfUqkzXhv8C3WU2Q2RsLF6zS732D4rnSUAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T18:56:24.275191Z","bundle_sha256":"0f0b6bbe597be0bfccf9959732ee1d8210e85e9d6dd278197f55c1d4d6bc93da"}}