{"id": 2879, "prediction_verbatim": "Oil prices will remain above $100 in the next 48h.", "created_at": "2026-04-07 16:44:36", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-09 16:53:36", "chain_hash": "d3707ebc225a29df3fa8f6a7a430409b4865b2a03868f5ae807dacc2e1e03dd8", "chain_tx": "67QhFxMv6SSUM7sW1vYzMoZzd5yycZRNckw8WSW1amRMWwd5k3ehjkpxZm6B3NXjpjbUbmH4P4ZCxoWmNQWfgSfF", "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."}