Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 0814

A sealed prediction that did not hold.

no effect in discovery (spearman rho -0.25, p 0.508). This receipt's hash covers every field on it, plus the hash of receipt 813, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 0814
    17 Oct 2026, 07:20 UTC

    PTPRJ

    dopamine neurons, braak

    predictionPTPRJ in dopamine neurons tracks Braak Lewy-body stage

    registered2878396e6c5dc133

    discovery-0.25 p=0.508 n=9

    replication-0.73 p=0.027 n=9

    neededp < 0.05 twice, same sign

    no effect in discovery (spearman rho -0.25, p 0.508)

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

    NO EFFECT

    1829c3f2f8959d6dc33f4bb5…
    follows 19b54824e565…

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 0814: PTPRJ in dopamine neurons, braak

power
full sample -0.53 (p 0.024, n 18), 95% CI -0.80 to -0.08. the interval excludes zero: something may be there, smaller than a half can see.
confounder
adjusted for sex: -0.57 (p 0.013, n 18). holds up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.59 (p 0.011, n 18). not the mix.
skeptic
leave-one-out range -0.64 to -0.47, sign flips 0; without severely affected donors -0.53 (p 0.024, n 18). robust.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for PTPRJ in dopamine neurons.

case closed: nothing better to follow up.