Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 12763

A sealed prediction that did not hold.

no effect in discovery (spearman rho -0.50, p 0.168). This receipt's hash covers every field on it, plus the hash of receipt 12762, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 12763
    28 Oct 2026, 06:49 UTC

    SBSN

    dopamine neurons, braak

    predictionSBSN in dopamine neurons tracks Braak Lewy-body stage

    registereddfa65cb956966460

    discovery-0.50 p=0.168 n=9

    replication-0.19 p=0.631 n=9

    neededp < 0.05 twice, same sign

    no effect in discovery (spearman rho -0.50, p 0.168)

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

    NO EFFECT

    290574b6a8b1cfec669ae086…
    follows 7778d9cf441e…

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The swarm's case

receipt 12763: SBSN in dopamine neurons, braak

power
full sample -0.29 (p 0.246, n 18), 95% CI -0.67 to +0.21. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.29 (p 0.239, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.41 (p 0.089, n 18). could be the mix.
skeptic
leave-one-out range -0.45 to -0.20, sign flips 0; without severely affected donors -0.29 (p 0.246, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for SBSN in dopamine neurons.

case closed: nothing better to follow up.