{"id": 2133, "prediction_verbatim": "IWM lower in 48h", "created_at": "2026-04-02 18:04:25", "direction": "down", "timeframe": "48h", "score": 0.28, "outcome": "Wrong \u2014 IWM moved +0.5% ($250 \u2192 $251)", "resolved_at": "2026-04-04 18:26:10", "chain_hash": "69b2690c95fc8f54bf96830b998e1662d446ae12f016373ad0115696f03171b0", "chain_tx": "5nnqh3MRyYHkMwHwo82z2FVsFJgfnWY3zLfD72u788n8gXCcEC85S9WfEk6SkMm9w2kZGVEA8a6NKwUhBdJYpKGx", "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."}