{"id": 3129, "prediction_verbatim": "SPY lower in 24h", "created_at": "2026-04-10 17:53:50", "direction": "down", "timeframe": "24h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-12 05:54:10", "chain_hash": "c5038b3bbc7c16e1f1f8e5020e135e43ecd8d635f57d0e88958f5a9965fcdf12", "chain_tx": "x6zZCxW9ZRrWR7Ky7xtRiaw6KKJzmSHhfwfz5CtCMGnKvxQTbuVobj1gVrSdZg4txBW6rjsG7sKHfYww7ZK8RqH", "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."}