Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 6418

A sealed prediction that did not hold.

no effect in discovery (spearman rho -0.32, p 0.407). This receipt's hash covers every field on it, plus the hash of receipt 6417, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 6418
    22 Oct 2026, 12:11 UTC

    AIM2

    dopamine neurons, braak

    predictionAIM2 in dopamine neurons tracks Braak Lewy-body stage

    registered3dd08a8e9ffa2bc4

    discovery-0.32 p=0.407 n=9

    replication+0.45 p=0.227 n=9

    neededp < 0.05 twice, same sign

    no effect in discovery (spearman rho -0.32, p 0.407)

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

    NO EFFECT

    90b3ab48b083059d5573cae7…
    follows 90ef1d1fc11f…

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 6418: AIM2 in dopamine neurons, braak

power
full sample +0.12 (p 0.640, n 18), 95% CI -0.37 to +0.55. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.14 (p 0.591, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.09 (p 0.715, n 18). could be the mix.
skeptic
leave-one-out range -0.01 to +0.23, sign flips 1; without severely affected donors +0.12 (p 0.640, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for AIM2 in dopamine neurons.

case closed: nothing better to follow up.