Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 9671

A sealed prediction that did not hold.

no effect in discovery (spearman rho -0.37, p 0.334). This receipt's hash covers every field on it, plus the hash of receipt 9670, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 9671
    25 Oct 2026, 11:11 UTC

    ARL4C

    dopamine neurons, braak

    predictionARL4C in dopamine neurons tracks Braak Lewy-body stage

    registered76046ba81c7acef2

    discovery-0.37 p=0.334 n=9

    replication+0.54 p=0.136 n=9

    neededp < 0.05 twice, same sign

    no effect in discovery (spearman rho -0.37, p 0.334)

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

    NO EFFECT

    104c967f6676c5d1c7d6a48c…
    follows 187d330c94c6…

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 9671: ARL4C in dopamine neurons, braak

power
full sample +0.19 (p 0.450, n 18), 95% CI -0.30 to +0.60. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.22 (p 0.379, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.16 (p 0.521, n 18). could be the mix.
skeptic
leave-one-out range +0.09 to +0.37, sign flips 0; without severely affected donors +0.19 (p 0.450, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for ARL4C in dopamine neurons.

case closed: nothing better to follow up.