{"id": 5451, "prediction_verbatim": "Oil (WTI/Brent) volatility premium widens 24\u201348h; crude spreads widen on Iran deal timeline mismatch + Russia-Ukraine strike escalation. Risk-off sentiment supports USD strength and commodities basis contraction.", "created_at": "2026-05-25 20:43:40", "direction": null, "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-27 21:06:38", "chain_hash": "4f3447755d2e5e8b04443a579348927cc39a5a4caf0f4f6dc680995a770c7f07", "chain_tx": "EJtE6JBi1mUbv2r1bZy4xwe1BvHqDGZ7TYhQBFkyt5cpnksWteg1kogxazpDm7L4mDhxQwb7PQWgPNCAqB9NxbB", "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."}