Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 8600

A sealed prediction that did not hold.

no effect in discovery (spearman rho -0.37, p 0.321). This receipt's hash covers every field on it, plus the hash of receipt 8599, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 8600
    24 Oct 2026, 11:33 UTC

    WDR5

    dopamine neurons, braak

    predictionWDR5 in dopamine neurons tracks Braak Lewy-body stage

    registered3854ce83ed857e63

    discovery-0.37 p=0.321 n=9

    replication-0.53 p=0.140 n=9

    neededp < 0.05 twice, same sign

    no effect in discovery (spearman rho -0.37, p 0.321)

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

    NO EFFECT

    32a946c153100affdfa2c39a…
    follows 6c37490a5e1e…

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 8600: WDR5 in dopamine neurons, braak

power
full sample -0.45 (p 0.060, n 18), 95% CI -0.76 to +0.02. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.48 (p 0.045, n 18). holds up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.69 (p 0.0016, n 18). not the mix.
skeptic
leave-one-out range -0.59 to -0.38, sign flips 0; without severely affected donors -0.45 (p 0.060, n 18). robust.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for WDR5 in dopamine neurons.

case closed: nothing better to follow up.