{"id": 4585, "prediction_verbatim": "Coinbase stock (COIN) closes higher in 48h as market reprices the regulatory clarity + margin expansion narrative.", "created_at": "2026-05-06 23:40:43", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-08 23:41:36", "chain_hash": "b7661db92f03aa6c1e4f6bb5aec22cc536c99affdede23941a5b59db66e91b47", "chain_tx": "Ykvu9WhJZWuESYkunKezk45syoKJeKyPShdtgSwciFj39MZazbcjXi7GbES13u1jCC3qconwq8KCDKCPjZAhABt", "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."}