{"id": 4884, "prediction_verbatim": "BTC lower within 48h", "created_at": "2026-05-11 22:32:14", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-13 22:32:49", "chain_hash": "7c2a760e5f829aeb8201c4b174f9cb60dac9ea7b0fbb61a2d012860dc2f0b8f7", "chain_tx": "AsKU7rj8UHcdc6Rrx47e4WPHQWvHyMBUBD2ZZh64eR5VY7LGt9jezwnh1ioLK1jcrxaTPVP1h66ugGChY93YJDm", "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."}