{"id": 3663, "prediction_verbatim": "TSLA underperforms SPY", "created_at": "2026-04-17 20:08:42", "direction": "down", "timeframe": "24h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-19 08:08:52", "chain_hash": "001a254d709330aa7c99f273a0e1c9ea9be59be1ccf2ed2f75f797afc3e50246", "chain_tx": "2aSUMuH1miHkikAtEVFBuJMCfbcYj64JGMHUKkcYVw25DV8LcNeDV72AsVWT86Tcq6Ndn7UyXYVDfTRjvkSWkxq5", "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."}