Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 9591

A sealed prediction that did not hold.

no effect in discovery (spearman rho -0.26, p 0.498). This receipt's hash covers every field on it, plus the hash of receipt 9590, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 9591
    25 Oct 2026, 09:26 UTC

    FXYD5

    dopamine neurons, braak

    predictionFXYD5 in dopamine neurons tracks Braak Lewy-body stage

    registered9e5a14ea89d63273

    discovery-0.26 p=0.498 n=9

    replication-0.40 p=0.292 n=9

    neededp < 0.05 twice, same sign

    no effect in discovery (spearman rho -0.26, p 0.498)

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

    NO EFFECT

    55ac8e1bf40e5fd1b3b5002d…
    follows 236668ecac6d…

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 9591: FXYD5 in dopamine neurons, braak

power
full sample -0.26 (p 0.289, n 18), 95% CI -0.65 to +0.23. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.28 (p 0.265, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.44 (p 0.066, n 18). could be the mix.
skeptic
leave-one-out range -0.42 to -0.18, 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 FXYD5 in dopamine neurons.

case closed: nothing better to follow up.