Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 7213

A sealed prediction that did not hold.

no effect in discovery (spearman rho +0.29, p 0.456). This receipt's hash covers every field on it, plus the hash of receipt 7212, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 7213
    23 Oct 2026, 05:16 UTC

    CDH13

    dopamine neurons, braak

    predictionCDH13 in dopamine neurons tracks Braak Lewy-body stage

    registered174f0629ee323345

    discovery+0.29 p=0.456 n=9

    replication+0.19 p=0.623 n=9

    neededp < 0.05 twice, same sign

    no effect in discovery (spearman rho +0.29, p 0.456)

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

    NO EFFECT

    a2ef62dd60334f36f9834863…
    follows a990463ff362…

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 7213: CDH13 in dopamine neurons, braak

power
full sample +0.22 (p 0.374, n 18), 95% CI -0.27 to +0.62. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.18 (p 0.482, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.09 (p 0.735, n 18). could be the mix.
skeptic
leave-one-out range +0.13 to +0.37, sign flips 0; without severely affected donors +0.22 (p 0.374, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for CDH13 in dopamine neurons.

case closed: nothing better to follow up.