{"id": 2688, "prediction_verbatim": "SPY will close higher in 48h than current level ($655.83)", "created_at": "2026-04-03 20:01:18", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-05 20:14:14", "chain_hash": "0551408c7aa32724fbea202d1d1310c66568162544b561a6f6d4383e559c65bf", "chain_tx": "3jrCX9eBFDiR7M4ccStFUA4rDzdThaDaeJ64UyD25vXw2BmzVECoS4WP1Ku1bmW8Mc5RRiEKtPgFLdcGco8WTAa6", "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."}