{"id": 2618, "prediction_verbatim": "WTI crude lower in 48h", "created_at": "2026-04-03 17:16:40", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-05 17:44:14", "chain_hash": "4c07e0f29177c3b6d62d9068c3d7a4816995f63aaffbdc84f169e5b44b074575", "chain_tx": "2r3XiRB9EY7osV8W6N9bntmHGcHy3wASBEfQEeqiaGsEQ4cLPcNs9UEvRE8XkDrJDoWNvVqqjSrDsJQ8TrVtr3mh", "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."}