Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 9213

A sealed prediction that did not hold.

did not replicate (discovery +0.83 p 0.0061; held-out -0.32 p 0.407). This receipt's hash covers every field on it, plus the hash of receipt 9212, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 9213
    25 Oct 2026, 01:46 UTC

    NLGN4X

    dopamine neurons, braak

    predictionNLGN4X in dopamine neurons tracks Braak Lewy-body stage

    registered90de6e3552fe5e01

    discovery+0.83 p=0.0061 n=9

    replication-0.32 p=0.407 n=9

    neededp < 0.05 twice, same sign

    did not replicate (discovery +0.83 p 0.0061; held-out -0.32 p 0.407)

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

    DID NOT REPLICATE

    f3060a6becb749bae9139e0b…
    follows d8d0620d6f07…

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 9213: NLGN4X in dopamine neurons, braak

power
full sample +0.28 (p 0.269, n 18), 95% CI -0.22 to +0.66. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.31 (p 0.207, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.33 (p 0.176, n 18). could be the mix.
skeptic
leave-one-out range +0.17 to +0.38, sign flips 0; without severely affected donors +0.28 (p 0.269, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for NLGN4X in dopamine neurons.

case closed: nothing better to follow up.