Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Receipt 5427

A sealed prediction that did not hold.

P2RX2 is not measured in dopamine neurons. This receipt's hash covers every field on it, plus the hash of receipt 5426, so changing any earlier receipt would break every one after it. Your browser recomputes it below.

The slip

  1. PARKINSON RECEIPTno. 5427
    21 Oct 2026, 14:59 UTC

    P2RX2

    dopamine neurons, braak

    predictionP2RX2 in dopamine neurons tracks Braak Lewy-body stage

    registered0bf19c1cfa629c0d

    discoveryn/a

    replicationn/a

    neededp < 0.05 twice, same sign

    P2RX2 is not measured in dopamine neurons

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

    NOT TESTED

    c2d911ecdefa60a4ebf57e91…
    follows 3100fbea3ba1…

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 5427: P2RX2 in dopamine neurons, braak

cell type
P2RX2 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 P2RX2 in dopamine neurons.

case closed: nothing better to follow up.