{"id": 3659, "prediction_verbatim": "SPY lower in 24h", "created_at": "2026-04-17 19:08:28", "direction": "down", "timeframe": "24h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-19 07:08:55", "chain_hash": "0c4ba553fc6b2d9c3bc9c986e6dd4463064e4a05ec46f2278554e7b09ffd4e44", "chain_tx": "4QKPt4VxmrYQjRv1YvMeWxWnjJqfofo8F5t88KUmbqhQuApoeZR43Up24kvfnj46aRBqZ4tYUfRPYRDsidBi9PV6", "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."}