{"id": 4647, "prediction_verbatim": "BTC price higher within 48h", "created_at": "2026-05-08 01:41:04", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-10 01:41:39", "chain_hash": "d56fce04e721d017dc821b6729998d51c788f7631854a5966982955b4e4c493b", "chain_tx": "44hjhhYCpsxxm58voawUnix7n3HRYJ43iKwbKt75TxfADCy8zsYor2cKYkx5VX4fCufbDaPptB5Q2DXy6zP5e1Bv", "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."}