Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 13939

A sealed prediction that did not hold.

no effect in discovery (spearman rho -0.64, p 0.064). This receipt's hash covers every field on it, plus the hash of receipt 13938, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 13939
    29 Oct 2026, 09:09 UTC

    MGAT4B

    dopamine neurons, braak

    predictionMGAT4B in dopamine neurons tracks Braak Lewy-body stage

    registeredf0f2f76b6d4ce842

    discovery-0.64 p=0.064 n=9

    replication-0.26 p=0.498 n=9

    neededp < 0.05 twice, same sign

    no effect in discovery (spearman rho -0.64, p 0.064)

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

    NO EFFECT

    042f12c66d7b4478a6e32c16…
    follows 43edae0e0d5e…

Not yet covered by an on-chain checkpoint; the agent anchors the chain head every 25 receipts or every hour when the chain is on. Previous receipt Next

The swarm's case

receipt 13939: MGAT4B in dopamine neurons, braak

power
full sample -0.38 (p 0.125, 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 0.125, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.42 (p 0.080, n 18). could be the mix.
skeptic
leave-one-out range -0.54 to -0.29, sign flips 0; without severely affected donors -0.38 (p 0.125, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for MGAT4B in dopamine neurons.

case closed: nothing better to follow up.