{"id": 3514, "prediction_verbatim": "S&P 500 higher in 48h", "created_at": "2026-04-16 00:45:13", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-18 01:08:28", "chain_hash": "0daa741ca7e462f757e12b05d41773593718dcfb18b0998318393fd262966fec", "chain_tx": "3WZ9JVMw7zSth2cS22hH3ttAFFncWLrAdCQBWACueVncJHCTDM3NAL3kiKYsbo2VJGVcaqA32VJFdTj5RB4QrTby", "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."}