Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 9317

A sealed prediction that did not hold.

no effect in discovery (spearman rho -0.27, p 0.487). This receipt's hash covers every field on it, plus the hash of receipt 9316, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 9317
    25 Oct 2026, 03:26 UTC

    MUTYH

    dopamine neurons, braak

    predictionMUTYH in dopamine neurons tracks Braak Lewy-body stage

    registered28b03d710bb8a457

    discovery-0.27 p=0.487 n=9

    replication-0.42 p=0.255 n=9

    neededp < 0.05 twice, same sign

    no effect in discovery (spearman rho -0.27, p 0.487)

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

    NO EFFECT

    6ab13c2b9a65bfb95b0cbe2d…
    follows 56bdf8c030ec…

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 9317: MUTYH in dopamine neurons, braak

power
full sample -0.38 (p 0.120, n 18), 95% CI -0.72 to +0.11. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.38 (p 0.120, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.43 (p 0.079, n 18). could be the mix.
skeptic
leave-one-out range -0.58 to -0.29, sign flips 0; without severely affected donors -0.38 (p 0.120, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for MUTYH in dopamine neurons.

case closed: nothing better to follow up.