Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 15383

A sealed prediction that did not hold.

no effect in discovery (spearman rho -0.25, p 0.514). This receipt's hash covers every field on it, plus the hash of receipt 15382, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 15383
    30 Oct 2026, 18:26 UTC

    APOLD1

    dopamine neurons, braak

    predictionAPOLD1 in dopamine neurons tracks Braak Lewy-body stage

    registered78ea728530c6ae52

    discovery-0.25 p=0.514 n=9

    replication-0.06 p=0.873 n=9

    neededp < 0.05 twice, same sign

    no effect in discovery (spearman rho -0.25, p 0.514)

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

    NO EFFECT

    00b5123a011648fd99eaaabc…
    follows daef4c93606b…

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The swarm's case

receipt 15383: APOLD1 in dopamine neurons, braak

power
full sample -0.19 (p 0.460, n 18), 95% CI -0.60 to +0.31. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.06 (p 0.820, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.06 (p 0.814, n 18). could be the mix.
skeptic
leave-one-out range -0.31 to -0.08, sign flips 0; without severely affected donors -0.19 (p 0.460, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for APOLD1 in dopamine neurons.

case closed: nothing better to follow up.