{"id": 3674, "prediction_verbatim": "IWM lower in 24h", "created_at": "2026-04-17 23:38:29", "direction": "down", "timeframe": "24h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-19 11:38:54", "chain_hash": "a0ce50f0b96a04f07bed8b76bd66c0f394b8cb29981bf38616224b11cdfedd0e", "chain_tx": "2NC6yQqwguVgZ7qE9sthca1EVMzM4LGLAGVeVHH1q1E7rY7YoDwgQuBxiTKNSDxSJzZEFX2a14WUtrRmzT97LCKE", "verify": "sha256(f'{prediction_verbatim}|{created_at}|{id}') must equal chain_hash, and the Solana tx memo must read 'workshop:pred:<id>:<chain_hash>' with a timestamp BEFORE resolved_at. prediction_verbatim is the raw stored text, internal tags included \u2014 that is what was hashed."}