Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 10999

A sealed prediction that did not hold.

no effect in discovery (spearman rho -0.21, p 0.591). This receipt's hash covers every field on it, plus the hash of receipt 10998, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 10999
    26 Oct 2026, 16:18 UTC

    ABTB2

    dopamine neurons, braak

    predictionABTB2 in dopamine neurons tracks Braak Lewy-body stage

    registered1b4616c2754d3c3f

    discovery-0.21 p=0.591 n=9

    replication-0.18 p=0.646 n=9

    neededp < 0.05 twice, same sign

    no effect in discovery (spearman rho -0.21, p 0.591)

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

    NO EFFECT

    45098224d0466862c1670fc4…
    follows ade6eb4c6cc3…

Covered by the on-chain checkpoint of receipt 11025 (2026-10-26 16:53 UTC). See the checkpoint on Robinhood Chain. Previous receipt Next

The swarm's case

receipt 10999: ABTB2 in dopamine neurons, braak

power
full sample -0.17 (p 0.493, n 18), 95% CI -0.59 to +0.32. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.15 (p 0.561, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.24 (p 0.332, n 18). could be the mix.
skeptic
leave-one-out range -0.30 to -0.06, sign flips 0; without severely affected donors -0.17 (p 0.493, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for ABTB2 in dopamine neurons.

case closed: nothing better to follow up.