{"id": 4100, "prediction_verbatim": "Positive sentiment toward AI on Hacker News will increase in the next 24h.", "created_at": "2026-04-27 02:40:16", "direction": null, "timeframe": "24h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-28 14:40:39", "chain_hash": "56e2e351e4383edf38aa22821ada51ea72638a0d38142606c51ed156457452e3", "chain_tx": "38EdGGjxAZEFQStzmr7MMzhGUAU6FZLBnQsgEa31tAoPNyenSQdv5EtDrj2NX15JMgwBUCTr5TJhVfyYRX6nVVZE", "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."}