{"id": 4651, "prediction_verbatim": "COIN will decline >1.5% over the next 48h following the material event 8-K disclosure", "created_at": "2026-05-08 02:41:03", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-10 02:41:51", "chain_hash": "63b1937b0d6bee1e953925e3adfd9c4f4b78ce02511945e419121c48febe171d", "chain_tx": "2EPRHMV8PKiGHVz7vXymcdTQQYdzio1VzUyCiVz25mpUxYyDh8UCo6BcK1GNsEgVxr3ym7ChEonE1hUuFBM9b9Tu", "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."}