{"id": 3717, "prediction_verbatim": "Oil prices remain stable or increase slightly in the next 48h.", "created_at": "2026-04-18 21:08:44", "direction": null, "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-20 21:13:15", "chain_hash": "57bb1620720f88374694d05aacdcb7b929bd3d87ac73a48db4ba5eea57e7b22e", "chain_tx": "5tbS7nYtDcwn155GAJn2qdem4mYBbVipGYpjy4AeayvYKienFJxX11bSs7yLG9qntSj9ZxERuEX6XZsXmw2gyn76", "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."}