Pith Number

pith:XVRRR6IQ

pith:2026:XVRRR6IQPCNDKJ4ZNYEEASF6TJ

not attested not anchored not stored refs pending

The X17 Existence Hinted at by Nuclear Reactor Neutrinos

Else Lytken, Joakim Cederk\"all, Johan Rathsman, Stefano Moretti, Yasar Hicyilmaz

Reactor neutrino scattering data supports the existence of the X17 particle

arxiv:2605.10689 v2 · 2026-05-11 · hep-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XVRRR6IQPCNDKJ4ZNYEEASF6TJ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

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

We show how, by exploiting the process of Coherent Elastic neutrino Nucleus Scattering (CEvNS), neutrinos produced by nuclear reactor experiments appear to corroborate the evidence of the so-called X17 particle, which has been invoked to explain the ATOMKI anomaly. ... single out a unique region of couplings to neutrinos and nuclei.

C2weakest assumption

That any deviations or signals in the CONUS+ and Dresden-II CEvNS data are attributable to X17 exchange rather than unaccounted systematics, backgrounds, or other new physics, and that the datasets can be combined without significant tension.

C3one line summary

Reactor neutrino CEvNS data corroborates the X17 particle by constraining its neutrino and nuclear couplings to a unique region when combined with other neutrino measurements.

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-28T02:04:49.322624Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd6318f910789a3527996e084048be9a4cf2dcea879910fd259087e8cab57707

Aliases

arxiv: 2605.10689 · arxiv_version: 2605.10689v2 · doi: 10.48550/arxiv.2605.10689 · pith_short_12: XVRRR6IQPCND · pith_short_16: XVRRR6IQPCNDKJ4Z · pith_short_8: XVRRR6IQ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/XVRRR6IQPCNDKJ4ZNYEEASF6TJ \
  | 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: bd6318f910789a3527996e084048be9a4cf2dcea879910fd259087e8cab57707

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd1c9cfeb5917c156449f8498cf9f3fe4bd487ce605d99901253741c6975366d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2026-05-11T15:02:49Z",
    "title_canon_sha256": "0618d0e6ab21947534578009256a6440f0b8feee65c0593dca322dcc63fe24e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.10689",
    "kind": "arxiv",
    "version": 2
  }
}