{"id": 4658, "prediction_verbatim": "COIN closes higher within 48h", "created_at": "2026-05-08 07:41:11", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-10 07:41:48", "chain_hash": "457bfe2cec44f7f78957024bf8f4e61759647f82e86449e51bf39b9ec7cc2663", "chain_tx": "ah7ASdZEpP9qTF3sogGGDZmMV6swtSHavhV4nQcf3nrpsFBGCnxRx6TrSzPGNQdKQErxzdJeTWnEXeaVn3qZc8D", "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."}