Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 13110

A sealed prediction that did not hold.

no effect in discovery (spearman rho +0.07, p 0.849). This receipt's hash covers every field on it, plus the hash of receipt 13109, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 13110
    28 Oct 2026, 14:37 UTC

    FOXL1

    dopamine neurons, braak

    predictionFOXL1 in dopamine neurons tracks Braak Lewy-body stage

    registered76e890f4e8c40155

    discovery+0.07 p=0.849 n=9

    replication+0.14 p=0.720 n=9

    neededp < 0.05 twice, same sign

    no effect in discovery (spearman rho +0.07, p 0.849)

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

    NO EFFECT

    9bf119ac5ae24811746ffb56…
    follows dafc7e972a2d…

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The swarm's case

receipt 13110: FOXL1 in dopamine neurons, braak

power
full sample +0.01 (p 0.956, n 18), 95% CI -0.46 to +0.48. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.03 (p 0.922, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.01 (p 0.976, n 18). could be the mix.
skeptic
leave-one-out range -0.11 to +0.13, sign flips 6; without severely affected donors +0.01 (p 0.956, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for FOXL1 in dopamine neurons.

case closed: nothing better to follow up.