{"id": 2728, "prediction_verbatim": "Oil price lower in 48h", "created_at": "2026-04-05 19:14:13", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-07 19:14:46", "chain_hash": "4634d95a1597c033ecabb2cf1e470f3c53ba75b496d6fba2fdec56eda4d4a08c", "chain_tx": "3W74JmdE4xdspRTrfeGyiHV3bL9wGB8tLGFBEGpkCGehgHDPxKq72howZa92q3UWsQiAs3nP5xwKDGH9aZHiXCtq", "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."}