{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:QFFF4TAT2PBGYWGNAVV5QTA7B4","short_pith_number":"pith:QFFF4TAT","canonical_record":{"source":{"id":"1503.01367","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-03-04T16:27:27Z","cross_cats_sorted":["hep-ph","nucl-th"],"title_canon_sha256":"ce5ceff355d3c8b37779128961ca238aacc8fab9856a9b8e7f89350d47cfe694","abstract_canon_sha256":"2a7c6211529654ec478a821b4e82dde187ce84108699bf311663b7e529625740"},"schema_version":"1.0"},"canonical_sha256":"814a5e4c13d3c26c58cd056bd84c1f0f0d69394fd7f634db4a502a946a9a0f5c","source":{"kind":"arxiv","id":"1503.01367","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.01367","created_at":"2026-05-18T02:25:34Z"},{"alias_kind":"arxiv_version","alias_value":"1503.01367v1","created_at":"2026-05-18T02:25:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.01367","created_at":"2026-05-18T02:25:34Z"},{"alias_kind":"pith_short_12","alias_value":"QFFF4TAT2PBG","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_16","alias_value":"QFFF4TAT2PBGYWGN","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_8","alias_value":"QFFF4TAT","created_at":"2026-05-18T12:29:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:QFFF4TAT2PBGYWGNAVV5QTA7B4","target":"record","payload":{"canonical_record":{"source":{"id":"1503.01367","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-03-04T16:27:27Z","cross_cats_sorted":["hep-ph","nucl-th"],"title_canon_sha256":"ce5ceff355d3c8b37779128961ca238aacc8fab9856a9b8e7f89350d47cfe694","abstract_canon_sha256":"2a7c6211529654ec478a821b4e82dde187ce84108699bf311663b7e529625740"},"schema_version":"1.0"},"canonical_sha256":"814a5e4c13d3c26c58cd056bd84c1f0f0d69394fd7f634db4a502a946a9a0f5c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:25:34.694712Z","signature_b64":"r/hxFdEZGXDKV5vik/yxnH8dR+d9bLDudJ9GW8y+JKjVDJc0cowq+cMIaPIh0hqhbI+kST5KD/NFsJBj4ohSAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"814a5e4c13d3c26c58cd056bd84c1f0f0d69394fd7f634db4a502a946a9a0f5c","last_reissued_at":"2026-05-18T02:25:34.694102Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:25:34.694102Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1503.01367","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":"2026-05-18T02:25:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t+JLJfy88RNo9Ktb1xwf6Prb7C3pLi1juhJA8zhnxfXusCjxCGOJUwIAB7WUiJiRX0DINpyVfTVBGNax+RaPAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T03:39:31.074445Z"},"content_sha256":"34a2ec93717ba003f13030c5dd86379b87a07a727acbb6bd9795b5202e3726b4","schema_version":"1.0","event_id":"sha256:34a2ec93717ba003f13030c5dd86379b87a07a727acbb6bd9795b5202e3726b4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:QFFF4TAT2PBGYWGNAVV5QTA7B4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Precise measurement of branching ratios in the beta decay of 38Ca","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph","nucl-th"],"primary_cat":"nucl-ex","authors_text":"B. T. Roeder, E. McCleskey, H. I. Park, I. S. Towner, J. C. Hardy, L. Chen, M. Bencomo, N. Nica, R. E. Tribble, V. E. Iacob, V. Horvat","submitted_at":"2015-03-04T16:27:27Z","abstract_excerpt":"We present the full description of a measurement of the branching ratios for the beta-decay of 38Ca. This decay includes five allowed 0+ --> 1+ branches and a superallowed 0+ --> 0+ one. With our new result for the latter, we determine its ft value to be 3062.3(68) s, a result whose precision (0.2%) is comparable to the precision of the thirteen well known 0+ --> 0+ transitions used up till now for the determination of Vud, the up-down quark-mixing element of the CKM matrix. The 38Ca superallowed transition thus becomes the first addition to this set of transitions in nearly a decade and the f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.01367","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":"2026-05-18T02:25:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AAeWQnFNTY20R7RANkeqD9R8RIipQXl6O+MOr3baHG+zL0uSVyHbxOCrj3JFxNRRAZBKVzFWzITgs6VWcaExBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T03:39:31.075116Z"},"content_sha256":"95b58886ffdca1483259949bb306df3545c6fc77dc44b5b5d674f3f0990a7135","schema_version":"1.0","event_id":"sha256:95b58886ffdca1483259949bb306df3545c6fc77dc44b5b5d674f3f0990a7135"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QFFF4TAT2PBGYWGNAVV5QTA7B4/bundle.json","state_url":"https://pith.science/pith/QFFF4TAT2PBGYWGNAVV5QTA7B4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QFFF4TAT2PBGYWGNAVV5QTA7B4/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":"2026-05-27T03:39:31Z","links":{"resolver":"https://pith.science/pith/QFFF4TAT2PBGYWGNAVV5QTA7B4","bundle":"https://pith.science/pith/QFFF4TAT2PBGYWGNAVV5QTA7B4/bundle.json","state":"https://pith.science/pith/QFFF4TAT2PBGYWGNAVV5QTA7B4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QFFF4TAT2PBGYWGNAVV5QTA7B4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:QFFF4TAT2PBGYWGNAVV5QTA7B4","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":"2a7c6211529654ec478a821b4e82dde187ce84108699bf311663b7e529625740","cross_cats_sorted":["hep-ph","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-03-04T16:27:27Z","title_canon_sha256":"ce5ceff355d3c8b37779128961ca238aacc8fab9856a9b8e7f89350d47cfe694"},"schema_version":"1.0","source":{"id":"1503.01367","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.01367","created_at":"2026-05-18T02:25:34Z"},{"alias_kind":"arxiv_version","alias_value":"1503.01367v1","created_at":"2026-05-18T02:25:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.01367","created_at":"2026-05-18T02:25:34Z"},{"alias_kind":"pith_short_12","alias_value":"QFFF4TAT2PBG","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_16","alias_value":"QFFF4TAT2PBGYWGN","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_8","alias_value":"QFFF4TAT","created_at":"2026-05-18T12:29:37Z"}],"graph_snapshots":[{"event_id":"sha256:95b58886ffdca1483259949bb306df3545c6fc77dc44b5b5d674f3f0990a7135","target":"graph","created_at":"2026-05-18T02:25:34Z","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 present the full description of a measurement of the branching ratios for the beta-decay of 38Ca. This decay includes five allowed 0+ --> 1+ branches and a superallowed 0+ --> 0+ one. With our new result for the latter, we determine its ft value to be 3062.3(68) s, a result whose precision (0.2%) is comparable to the precision of the thirteen well known 0+ --> 0+ transitions used up till now for the determination of Vud, the up-down quark-mixing element of the CKM matrix. The 38Ca superallowed transition thus becomes the first addition to this set of transitions in nearly a decade and the f","authors_text":"B. T. Roeder, E. McCleskey, H. I. Park, I. S. Towner, J. C. Hardy, L. Chen, M. Bencomo, N. Nica, R. E. Tribble, V. E. Iacob, V. Horvat","cross_cats":["hep-ph","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-03-04T16:27:27Z","title":"Precise measurement of branching ratios in the beta decay of 38Ca"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.01367","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":"sha256:34a2ec93717ba003f13030c5dd86379b87a07a727acbb6bd9795b5202e3726b4","target":"record","created_at":"2026-05-18T02:25:34Z","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":"2a7c6211529654ec478a821b4e82dde187ce84108699bf311663b7e529625740","cross_cats_sorted":["hep-ph","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-03-04T16:27:27Z","title_canon_sha256":"ce5ceff355d3c8b37779128961ca238aacc8fab9856a9b8e7f89350d47cfe694"},"schema_version":"1.0","source":{"id":"1503.01367","kind":"arxiv","version":1}},"canonical_sha256":"814a5e4c13d3c26c58cd056bd84c1f0f0d69394fd7f634db4a502a946a9a0f5c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"814a5e4c13d3c26c58cd056bd84c1f0f0d69394fd7f634db4a502a946a9a0f5c","first_computed_at":"2026-05-18T02:25:34.694102Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:25:34.694102Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"r/hxFdEZGXDKV5vik/yxnH8dR+d9bLDudJ9GW8y+JKjVDJc0cowq+cMIaPIh0hqhbI+kST5KD/NFsJBj4ohSAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:25:34.694712Z","signed_message":"canonical_sha256_bytes"},"source_id":"1503.01367","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:34a2ec93717ba003f13030c5dd86379b87a07a727acbb6bd9795b5202e3726b4","sha256:95b58886ffdca1483259949bb306df3545c6fc77dc44b5b5d674f3f0990a7135"],"state_sha256":"428bf19f4ed09dae894cd8c51c04ccfcb3aa4d01251d4e567f80b1e43de84e69"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pp+PBbIYjOjHYvkJlszlwq0uaeeFQUHzIDAlJ35UNpLaDliiPcJDTWgNiZe3XF2+mm01YZ1inhbqZ4TIxQRkCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T03:39:31.078702Z","bundle_sha256":"f02c989a477da24598cffa9cacec60e7ec3979f8c34a3a8a5b1525337771373b"}}