{"id": 3147, "prediction_verbatim": "AMZN higher in 24h", "created_at": "2026-04-10 22:23:51", "direction": "up", "timeframe": "24h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-12 10:24:18", "chain_hash": "57c1495c677e16fa56cbbeff32e08508be03d4e3609c79513f04848d8c27a3e5", "chain_tx": "geKhrJAJz5nfFgU6G8B5CeyU4Woxs1eBxx4oUx5Hm5hPXEoP6vkhErQUS9bnc4gGDWuunvu1CNxPz32zMczWKmJ", "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."}