Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 0070

A sealed prediction that did not hold.

no effect in discovery (spearman rho +0.05, p 0.755). This receipt's hash covers every field on it, plus the hash of receipt 69, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 0070
    16 Oct 2026, 15:52 UTC

    KIF5A

    dopamine neurons, braak

    predictionKIF5A in dopamine neurons tracks Braak Lewy-body stage

    registered41ed0f91eebadc68

    discovery+0.05 p=0.755 n=42

    replication+0.12 p=0.463 n=42

    neededp < 0.05 twice, same sign

    no effect in discovery (spearman rho +0.05, p 0.755)

    datasimulated substantia nigra cohort (84 donors)

    NO EFFECT

    9134baf0a478bb07e9f7e922…
    follows ac74a368599a…

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 0070: KIF5A in dopamine neurons, braak

power
full sample +0.07 (p 0.537, n 84), 95% CI -0.15 to +0.28. the interval sits on zero: probably nothing there.
confounder
adjusted for age, sex and PMI: +0.05 (p 0.663, n 84). does not hold up.
composition
dopamine neurons share of nuclei vs axis -0.72 (p 1.8e-14); controlling for it: -0.01 (p 0.943, n 84). could be the mix.
skeptic
leave-one-out range +0.04 to +0.10, sign flips 0; without severely affected donors -0.00 (p 0.985, n 75). fragile.
cell type
strongest in astrocytes: +0.30 (p 0.0059, n 84) vs +0.07 in dopamine neurons. proposing astrocytes.
axis
no measure beats "tracks Braak Lewy-body stage" for KIF5A in dopamine neurons.

follow-up registered; not confirmed in ventral tegmental area.
follow-up KIF5A · astrocytes · braak: ventral tegmental area +0.25 p 0.025 (needs p < 0.0045)