Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 9643

A sealed prediction that did not hold.

no effect in discovery (spearman rho +0.57, p 0.108). This receipt's hash covers every field on it, plus the hash of receipt 9642, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 9643
    25 Oct 2026, 10:35 UTC

    RAG1

    dopamine neurons, braak

    predictionRAG1 in dopamine neurons tracks Braak Lewy-body stage

    registered07b784bedc9dda67

    discovery+0.57 p=0.108 n=9

    replication+0.29 p=0.443 n=9

    neededp < 0.05 twice, same sign

    no effect in discovery (spearman rho +0.57, p 0.108)

    dataVolpato et al. 2025, ventral substantia nigra (18 donors)

    NO EFFECT

    7edf7d39d3b010649a1e4898…
    follows 82093686c18d…

Covered by the on-chain checkpoint of receipt 10865 (2026-10-26 13:05 UTC). See the checkpoint on Robinhood Chain. Previous receipt Next

The swarm's case

receipt 9643: RAG1 in dopamine neurons, braak

power
full sample +0.49 (p 0.041, n 18), 95% CI +0.02 to +0.78. the interval excludes zero: something may be there, smaller than a half can see.
confounder
adjusted for sex: +0.44 (p 0.064, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.44 (p 0.069, n 18). could be the mix.
skeptic
leave-one-out range +0.42 to +0.64, sign flips 0; without severely affected donors +0.49 (p 0.041, n 18). robust.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for RAG1 in dopamine neurons.

case closed: nothing better to follow up.