Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 17236

A sealed prediction that did not hold.

no effect in discovery (spearman rho -0.05, p 0.891). This receipt's hash covers every field on it, plus the hash of receipt 17235, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 17236
    01 Nov 2026, 10:17 UTC

    TDRD9

    dopamine neurons, braak

    predictionTDRD9 in dopamine neurons tracks Braak Lewy-body stage

    registered6f5a7f14a372edc3

    discovery-0.05 p=0.891 n=9

    replication-0.06 p=0.877 n=9

    neededp < 0.05 twice, same sign

    no effect in discovery (spearman rho -0.05, p 0.891)

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

    NO EFFECT

    7f73406cc11e11fc52668d5c…
    follows 9c0b25c99e94…

Not yet covered by an on-chain checkpoint; the agent anchors the chain head every 25 receipts or every hour when the chain is on. Previous receipt Next

The swarm's case

receipt 17236: TDRD9 in dopamine neurons, braak

power
full sample -0.06 (p 0.807, n 18), 95% CI -0.51 to +0.42. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.20 (p 0.418, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.09 (p 0.728, n 18). could be the mix.
skeptic
leave-one-out range -0.17 to +0.05, sign flips 3; without severely affected donors -0.06 (p 0.807, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for TDRD9 in dopamine neurons.

case closed: nothing better to follow up.