{"id": 5262, "prediction_verbatim": "Bitcoin volatility (30-day realized vol) increases above 65% within 48h", "created_at": "2026-05-18 07:41:11", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-20 07:50:41", "chain_hash": "75aaf33ff3366ad80d4db61a560241d48102cec44fdbccff54793e11f98585eb", "chain_tx": "5vohJNoxGh42HfNg1Y4xdWz8iLSCLTNaftSxt88fW215g3Le8TtXqAVJCSuHfiv9prGNWZwE7j8gQFTxsdHRD9xG", "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."}