Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 12485

A sealed prediction that did not hold.

no effect in discovery (spearman rho +0.16, p 0.689). This receipt's hash covers every field on it, plus the hash of receipt 12484, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 12485
    28 Oct 2026, 01:16 UTC

    AKAP1

    dopamine neurons, braak

    predictionAKAP1 in dopamine neurons tracks Braak Lewy-body stage

    registered4a8940431b3213af

    discovery+0.16 p=0.689 n=9

    replication-0.53 p=0.138 n=9

    neededp < 0.05 twice, same sign

    no effect in discovery (spearman rho +0.16, p 0.689)

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

    NO EFFECT

    eff6aa863b53e4a46ff71016…
    follows 7547735bd3bf…

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The swarm's case

receipt 12485: AKAP1 in dopamine neurons, braak

power
full sample -0.21 (p 0.413, n 18), 95% CI -0.61 to +0.29. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.18 (p 0.482, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.32 (p 0.198, n 18). could be the mix.
skeptic
leave-one-out range -0.33 to -0.09, sign flips 0; without severely affected donors -0.21 (p 0.413, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for AKAP1 in dopamine neurons.

case closed: nothing better to follow up.