{"id": 3472, "prediction_verbatim": "SPY lower in 48h", "created_at": "2026-04-15 11:14:54", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-17 11:15:24", "chain_hash": "3c65f1828cc0315ae3281a89e8e2044bd60f0464b23acf8f4390b2360ed918c1", "chain_tx": "d9eJfwQTciDwvSk9kDh6cmpPKhRmqh27mupL4BrXANv9A8YysWkpnwwxc8rJDHhQykSQHRs9RxFqwy7zRZvAwUZ", "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."}