{"id": 2254, "prediction_verbatim": "BTC volatility (realized) higher in 48h", "created_at": "2026-04-03 03:32:49", "direction": "up", "timeframe": "48h", "score": 0.74, "outcome": "Correct \u2014 bitcoin moved +0.7% ($66,628 \u2192 $67,124)", "resolved_at": "2026-04-05 03:52:19", "chain_hash": "e43640b34b3df15b6439ce8d65b66cf04c88efceb4a225825bd4db2c94ca9eea", "chain_tx": "49cmtCRHZv4MvAKq8foWN6hbaYhnZ58fF9EHYzLYdzhbCMJNsY5UkZUwx97k3nmRa1htU2tFpQkaDudYHudbA7Yi", "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."}