Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 4087

A sealed prediction that did not hold.

no effect in discovery (spearman rho +0.55, p 0.122). This receipt's hash covers every field on it, plus the hash of receipt 4086, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 4087
    20 Oct 2026, 09:35 UTC

    MTMR2

    dopamine neurons, braak

    predictionMTMR2 in dopamine neurons tracks Braak Lewy-body stage

    registered895936dde05ea399

    discovery+0.55 p=0.122 n=9

    replication+0.58 p=0.101 n=9

    neededp < 0.05 twice, same sign

    no effect in discovery (spearman rho +0.55, p 0.122)

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

    NO EFFECT

    8a57ee32884708dd534f86ca…
    follows a2f39543a97b…

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 4087: MTMR2 in dopamine neurons, braak

power
full sample +0.45 (p 0.060, n 18), 95% CI -0.02 to +0.76. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.44 (p 0.067, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.51 (p 0.030, n 18). not the mix.
skeptic
leave-one-out range +0.38 to +0.55, sign flips 0; without severely affected donors +0.45 (p 0.060, n 18). robust.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for MTMR2 in dopamine neurons.

case closed: nothing better to follow up.