Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 6551

A sealed prediction that did not hold.

no effect in discovery (spearman rho -0.29, p 0.443). This receipt's hash covers every field on it, plus the hash of receipt 6550, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 6551
    22 Oct 2026, 15:10 UTC

    GNB1

    dopamine neurons, braak

    predictionGNB1 in dopamine neurons tracks Braak Lewy-body stage

    registered631c4820d192879a

    discovery-0.29 p=0.443 n=9

    replication+0.19 p=0.623 n=9

    neededp < 0.05 twice, same sign

    no effect in discovery (spearman rho -0.29, p 0.443)

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

    NO EFFECT

    0ce2711d2f201c6b467aa2aa…
    follows 20b9e91df490…

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 6551: GNB1 in dopamine neurons, braak

power
full sample -0.13 (p 0.615, n 18), 95% CI -0.56 to +0.36. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.15 (p 0.544, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.05 (p 0.840, n 18). could be the mix.
skeptic
leave-one-out range -0.24 to -0.02, sign flips 0; without severely affected donors -0.13 (p 0.615, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for GNB1 in dopamine neurons.

case closed: nothing better to follow up.