{"id": 3781, "prediction_verbatim": "BTC lower in 24h", "created_at": "2026-04-19 15:38:52", "direction": "down", "timeframe": "24h", "score": 0.28, "outcome": "Wrong \u2014 bitcoin moved +0.8% ($75,635 \u2192 $76,207)", "resolved_at": "2026-04-20 20:03:22", "chain_hash": "50ee027cff49319c973967cd33dd25c780797d9f095ddda1cb0814c1b382411a", "chain_tx": "djR5gdif5PgSHcfSyg871wKa19KTQMNt6i8kBq9MqkvwREynjJeig7bfca1mazWorKF2Sxzvt9aToDFg2WTprwN", "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."}