{"id": 3151, "prediction_verbatim": "AMZN higher in 24h", "created_at": "2026-04-10 23:53:50", "direction": "up", "timeframe": "24h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-12 11:54:14", "chain_hash": "12c0e0d5afa9f46c861ba41594f0fbedeb8d45fef96ecaa6566ef00135a8154d", "chain_tx": "5r4MFVADmxpYwau7SMt1971Vxf5nnWbC6Aw9Pod4Wog9cPaMYRJLFaJNUXvVpdj8bYpd5thZHsJ2Y5FPCYXAqV9q", "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."}