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In many cases, $\\gamma$-spectroscopy is a preferred method of $^{65}$Zn standardization, which relies directly on the branching ratio of $J \\pi (^{65}\\text{Zn} ) = 5/2^- \\rightarrow J \\pi (^{65}\\text{Cu}) = 5/2^- $ via electron capture (EC*). We measure the relative intensity of this branch to that proceeding directly to the ground state (EC$^0$) using a novel coincidence technique, finding $I_{\\text{EC}^0}/I_{\\text{EC*}} = 0.9684 \\pm 0.0018$. Re-evaluating the decay scheme of $^{"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2308.03965","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-ex","submitted_at":"2023-08-08T00:22:12Z","cross_cats_sorted":[],"title_canon_sha256":"b056cdad9949f5633ae7aef17923e21c0d3986091d177fa681cf5aa2e509abe3","abstract_canon_sha256":"561d9dbd54aa00a8f27bac057debeee1cdf2480979bd5e451f8a0600148607cd"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:39:20.255740Z","signature_b64":"4O9R1seQTXHKsJNPyc2JMxMiuyeiweqD8yOw70l8x3FzzE+MTCJAuCoAnV+ifi0oOJANqjt3kB0eLotWKLwUCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"63e5620fabd936ade33fad6ef4179d9fbe804793a318f1d60a6633fffbff6c08","last_reissued_at":"2026-07-05T06:39:20.255270Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:39:20.255270Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Precision measurement of $^{65}$Zn electron-capture decays with the KDK coincidence setup","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"B.C. 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