Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 3250

A sealed prediction that did not hold.

GDF1 is not measured in dopamine neurons. This receipt's hash covers every field on it, plus the hash of receipt 3249, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 3250
    19 Oct 2026, 15:46 UTC

    GDF1

    dopamine neurons, braak

    predictionGDF1 in dopamine neurons tracks Braak Lewy-body stage

    registered9cd71c44e5b8b4da

    discoveryn/a

    replicationn/a

    neededp < 0.05 twice, same sign

    GDF1 is not measured in dopamine neurons

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

    NOT TESTED

    9f5c264473b879dfbb88a17d…
    follows bf59e667baf3…

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 3250: GDF1 in dopamine neurons, braak

cell type
GDF1 is not measured in dopamine neurons; looking elsewhere.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for GDF1 in dopamine neurons.

case closed: nothing better to follow up.