Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 6586

A sealed prediction that did not hold.

no effect in discovery (spearman rho -0.05, p 0.894). This receipt's hash covers every field on it, plus the hash of receipt 6585, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 6586
    22 Oct 2026, 15:57 UTC

    SLC30A7

    dopamine neurons, braak

    predictionSLC30A7 in dopamine neurons tracks Braak Lewy-body stage

    registeredd97d5627e5809209

    discovery-0.05 p=0.894 n=9

    replication+0.56 p=0.116 n=9

    neededp < 0.05 twice, same sign

    no effect in discovery (spearman rho -0.05, p 0.894)

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

    NO EFFECT

    75c6f86b76c807d6a93e5c83…
    follows 699ef9fb676c…

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 6586: SLC30A7 in dopamine neurons, braak

power
full sample +0.25 (p 0.319, n 18), 95% CI -0.25 to +0.64. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.28 (p 0.269, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.25 (p 0.310, n 18). could be the mix.
skeptic
leave-one-out range +0.17 to +0.41, sign flips 0; without severely affected donors +0.25 (p 0.319, n 18). fragile.
cell type
strongest in oligodendrocytes: +0.72 (p 7.8e-4, n 18) vs +0.25 in dopamine neurons. proposing oligodendrocytes.
axis
no measure beats "tracks Braak Lewy-body stage" for SLC30A7 in dopamine neurons.

follow-up registered; not confirmed in substantia nigra, an independent cohort.
follow-up SLC30A7 · oligodendrocytes · braak: substantia nigra, an independent cohort (Parkinson's or LBD vs controls) +0.65 p 0.021 (needs p < 3.1e-4)