Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 7870

A sealed prediction that did not hold.

no effect in discovery (spearman rho -0.39, p 0.297). This receipt's hash covers every field on it, plus the hash of receipt 7869, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 7870
    23 Oct 2026, 19:57 UTC

    ANGPT2

    dopamine neurons, braak

    predictionANGPT2 in dopamine neurons tracks Braak Lewy-body stage

    registeredc597f12d2b745552

    discovery-0.39 p=0.297 n=9

    replication+0.21 p=0.591 n=9

    neededp < 0.05 twice, same sign

    no effect in discovery (spearman rho -0.39, p 0.297)

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

    NO EFFECT

    06e28a6c908f6aebcd661567…
    follows 73af65075d4a…

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 7870: ANGPT2 in dopamine neurons, braak

power
full sample -0.02 (p 0.949, n 18), 95% CI -0.48 to +0.45. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.07 (p 0.774, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.07 (p 0.774, n 18). could be the mix.
skeptic
leave-one-out range -0.14 to +0.08, sign flips 6; without severely affected donors -0.02 (p 0.949, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for ANGPT2 in dopamine neurons.

case closed: nothing better to follow up.