Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 2809

A sealed prediction that did not hold.

no effect in discovery (spearman rho +0.05, p 0.893). This receipt's hash covers every field on it, plus the hash of receipt 2808, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 2809
    19 Oct 2026, 05:49 UTC

    SLC7A11

    astrocytes, braak

    predictionSLC7A11 in astrocytes tracks Braak Lewy-body stage

    registeredd750f0af7f6c50fd

    discovery+0.05 p=0.893 n=9

    replication+0.58 p=0.102 n=9

    neededp < 0.05 twice, same sign

    no effect in discovery (spearman rho +0.05, p 0.893)

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

    NO EFFECT

    6ce8b9e63d026c82d9f9ff0e…
    follows eacf17ff2423…

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 2809: SLC7A11 in astrocytes, braak

power
full sample +0.26 (p 0.289, n 18), 95% CI -0.23 to +0.65. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.24 (p 0.332, n 18). does not hold up.
composition
astrocytes share of nuclei vs axis -0.21 (p 0.413); controlling for it: +0.39 (p 0.107, n 18). could be the mix.
skeptic
leave-one-out range +0.16 to +0.39, sign flips 0; without severely affected donors +0.26 (p 0.289, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for SLC7A11 in astrocytes.

case closed: nothing better to follow up.