Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 4455

A sealed prediction that did not hold.

no effect in discovery (spearman rho -0.22, p 0.563). This receipt's hash covers every field on it, plus the hash of receipt 4454, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 4455
    20 Oct 2026, 17:53 UTC

    GNPTAB

    dopamine neurons, braak

    predictionGNPTAB in dopamine neurons tracks Braak Lewy-body stage

    registered42df4297a7d0d6b2

    discovery-0.22 p=0.563 n=9

    replication+0.12 p=0.759 n=9

    neededp < 0.05 twice, same sign

    no effect in discovery (spearman rho -0.22, p 0.563)

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

    NO EFFECT

    8f9f6b959e48002b5508bc53…
    follows 6af1b7dc33ef…

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 4455: GNPTAB in dopamine neurons, braak

power
full sample -0.03 (p 0.908, n 18), 95% CI -0.49 to +0.44. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.05 (p 0.854, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.02 (p 0.935, n 18). could be the mix.
skeptic
leave-one-out range -0.13 to +0.08, sign flips 4; without severely affected donors -0.03 (p 0.908, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for GNPTAB in dopamine neurons.

case closed: nothing better to follow up.