Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 8871

A sealed prediction that did not hold.

did not replicate (discovery -0.84 p 0.0046; held-out -0.17 p 0.663). This receipt's hash covers every field on it, plus the hash of receipt 8870, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 8871
    24 Oct 2026, 17:44 UTC

    ZFPM1

    dopamine neurons, braak

    predictionZFPM1 in dopamine neurons tracks Braak Lewy-body stage

    registered7b8113720bc10056

    discovery-0.84 p=0.0046 n=9

    replication-0.17 p=0.663 n=9

    neededp < 0.05 twice, same sign

    did not replicate (discovery -0.84 p 0.0046; held-out -0.17 p 0.663)

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

    DID NOT REPLICATE

    06a26f7998e615d67f69dbb5…
    follows 1ae5cbd32df3…

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 8871: ZFPM1 in dopamine neurons, braak

power
full sample -0.49 (p 0.039, n 18), 95% CI -0.78 to -0.03. the interval excludes zero: something may be there, smaller than a half can see.
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: -0.66 (p 0.0028, n 18). not the mix.
skeptic
leave-one-out range -0.62 to -0.42, sign flips 0; without severely affected donors -0.49 (p 0.039, n 18). robust.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for ZFPM1 in dopamine neurons.

case closed: nothing better to follow up.