Pith Number
pith:TXNLJFAW
pith:2026:TXNLJFAWMMSCKZCWR5R5JGMBXU
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First observation of single beta decay of $^{96}$Zr
The single beta decay half-life of zirconium-96 is measured for the first time at 2.27 × 10^20 years.
arxiv:2605.18344 v1 · 2026-05-18 · nucl-ex
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\usepackage{pith}
\pithnumber{TXNLJFAWMMSCKZCWR5R5JGMBXU}
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The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same
current state with the deterministic merge algorithm.
Claims
C1strongest claim
The half-life of the single beta decay of 96Zr is measured to be T_{1/2} = [2.27^{+0.53}_{-0.36}(stat) ± 0.27(syst)]×10^{20} yr.
C2weakest assumption
The detected gamma-ray cascade originates specifically from the beta decay of 96Zr to 96Nb followed by 96Nb decay to excited states of 96Mo, rather than from unrelated background processes or other isotopes.
C3one line summary
First observation and half-life measurement of single beta decay in 96Zr at T1/2 ≈ 2.27 × 10^20 years via gamma-ray cascade from daughter 96Nb.
References
[1] First observation of single beta decay of $^{96}$Zr
[2] Agostini et al., Toward the discovery of matter cre- ation with neutrinoless double-beta decay, Rev
[3] J.J. Gomez-Cadenas, J. Martin-Albo, J. Menendez, M. Mezzetto, F. Monrabal, and M. Sorel, The search for neutrinoless doublebeta decay, Riv. Nuovo Cim.46, 619 (2023)
[4] Adams et al., Neutrinoless double beta decay, arXiv:2212.11099
[5] Simkovic, Neutrino masses and interactions and neu- trino experiments in the laboratory, Phisics-Uspekhi,64, 1238-1260 (2021)
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Receipt and verification
| First computed | 2026-05-20T00:05:56.165842Z |
|---|---|
| Builder | pith-number-builder-2026-05-17-v1 |
| Signature | Pith Ed25519
(pith-v1-2026-05) · public key |
| Schema | pith-number/v1.0 |
Canonical hash
9ddab4941663242564568f63d49981bd0ad3d3a91f44dc4431babbd7ac718086
Aliases
· · · · ·Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/TXNLJFAWMMSCKZCWR5R5JGMBXU \
| jq -c '.canonical_record' \
| python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 9ddab4941663242564568f63d49981bd0ad3d3a91f44dc4431babbd7ac718086
Canonical record JSON
{
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"abstract_canon_sha256": "acc4c405b24248df7495ab6304c6429f2f1b09af44c64b8d14e229e38f49eeb7",
"cross_cats_sorted": [],
"license": "http://creativecommons.org/licenses/by/4.0/",
"primary_cat": "nucl-ex",
"submitted_at": "2026-05-18T12:57:01Z",
"title_canon_sha256": "24935f9a0fbdd7c395e718b549a0a2b2f7a8c015458d790ab9208e54dc903fab"
},
"schema_version": "1.0",
"source": {
"id": "2605.18344",
"kind": "arxiv",
"version": 1
}
}