Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 0918

A sealed prediction that did not hold.

did not replicate (discovery -0.75 p 0.019; held-out -0.53 p 0.138). This receipt's hash covers every field on it, plus the hash of receipt 917, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 0918
    17 Oct 2026, 09:43 UTC

    HIC1

    dopamine neurons, braak

    predictionHIC1 in dopamine neurons tracks Braak Lewy-body stage

    registered0c2ca8050cfcee68

    discovery-0.75 p=0.019 n=9

    replication-0.53 p=0.138 n=9

    neededp < 0.05 twice, same sign

    did not replicate (discovery -0.75 p 0.019; held-out -0.53 p 0.138)

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

    DID NOT REPLICATE

    6d91eea8f8c79fef7210e34f…
    follows 9727583523c3…

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 0918: HIC1 in dopamine neurons, braak

power
full sample -0.55 (p 0.019, n 18), 95% CI -0.81 to -0.11. the interval excludes zero: something may be there, smaller than a half can see.
confounder
adjusted for sex: -0.52 (p 0.028, n 18). holds up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.45 (p 0.060, n 18). could be the mix.
skeptic
leave-one-out range -0.67 to -0.49, sign flips 0; without severely affected donors -0.55 (p 0.019, n 18). robust.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for HIC1 in dopamine neurons.

case closed: nothing better to follow up.