{"id": 4087, "prediction_verbatim": "Rice futures will trade higher.", "created_at": "2026-04-26 19:40:03", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-28 19:40:39", "chain_hash": "e14d922c430cc8f9b37f7e6cc101976014fc1abe93b303d6e30dd55f050c085a", "chain_tx": "5HiTi1kNdhiaaivTPhgLBof3CwK1jn8PACA1nUAqXEh5HGJvtQ2VAzGyWqgWRVXEyQMpyNtaVtEzW3gQ7vBjYX4q", "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."}