{"id": 4744, "prediction_verbatim": "BTC closes lower than previous close within 48h", "created_at": "2026-05-09 18:41:34", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-11 18:59:08", "chain_hash": "d8172260aa0d8066f84d9142aca0601f41c9368bb6bf667347cd1c9d67451d12", "chain_tx": "2Y34uRTcmiP6airHA3KVAdDCyiA2KkHHAXn1KoAcFEwCb6ZctCrngLUAVUoefpUPh37g6yLnG6fD8fvf3HHbKoGy", "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."}