{"id": 3739, "prediction_verbatim": "BTC lower in 24h", "created_at": "2026-04-19 04:08:46", "direction": "down", "timeframe": "24h", "score": 0.77, "outcome": "Correct \u2014 bitcoin moved -1.4% ($75,631 \u2192 $74,567)", "resolved_at": "2026-04-20 04:09:20", "chain_hash": "a3d782ed69a2a540a730850f968398e876451c9ed0cffe24dbccbea2130891a7", "chain_tx": "3qKKa9hy9BnAC4M7CWAthtNAEuPTPnd7wAwRSJKXKsaD4XwkNkHVLHCjAr2Gyfj1Nrbv37qTapGftyng8dbVHxS", "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."}