Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 9541

A sealed prediction that did not hold.

no effect in discovery (spearman rho -0.23, p 0.545). This receipt's hash covers every field on it, plus the hash of receipt 9540, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 9541
    25 Oct 2026, 08:23 UTC

    SLC25A30

    dopamine neurons, braak

    predictionSLC25A30 in dopamine neurons tracks Braak Lewy-body stage

    registered4c6e86399e9fa7d7

    discovery-0.23 p=0.545 n=9

    replication-0.03 p=0.946 n=9

    neededp < 0.05 twice, same sign

    no effect in discovery (spearman rho -0.23, p 0.545)

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

    NO EFFECT

    63e54161f53e41b2c4c2b6ea…
    follows 38b409eaeb6f…

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 9541: SLC25A30 in dopamine neurons, braak

power
full sample -0.16 (p 0.521, n 18), 95% CI -0.58 to +0.33. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.14 (p 0.573, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.13 (p 0.621, n 18). could be the mix.
skeptic
leave-one-out range -0.34 to -0.06, sign flips 0; without severely affected donors -0.16 (p 0.521, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for SLC25A30 in dopamine neurons.

case closed: nothing better to follow up.