{"id": 4767, "prediction_verbatim": "BTC declines >2% within 48h", "created_at": "2026-05-10 02:41:40", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-12 03:02:19", "chain_hash": "2ad00d7d56e65079bc50b1405d2870d4f6d5479414f506fa407668fcba692a4b", "chain_tx": "4oUk7BS1jWHPwn7kr3jdedyGP49qb8wfsqPGxys4yHfqZUxe6o3o37E5UX7ZKBHTee9EUSL77hWTJjm6mU6be5Ck", "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."}