{"id": 3161, "prediction_verbatim": "Nigerian Naira will weaken against the US Dollar.", "created_at": "2026-04-11 04:23:54", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-13 04:24:30", "chain_hash": "7bdbec8192718bb1834e192b90eac500360a2422a52e081c8287fc3b5e504cc8", "chain_tx": "2SuyVkeJPgPV2ZwXwroMg8fZWyZyAQFD7LQpsqMZwYoJtNsBvr5mQeFz3punemSA2cVei7zC1BrX93xve98S3Mo7", "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."}