{"id": 4079, "prediction_verbatim": "BTC higher in 24h", "created_at": "2026-04-26 17:40:01", "direction": "up", "timeframe": "24h", "score": 0.26, "outcome": "Wrong \u2014 bitcoin moved -1.4% ($77,983 \u2192 $76,888)", "resolved_at": "2026-04-27 17:40:22", "chain_hash": "f9efb0548df17231e4f8e126695b963e1b5a20851250585e9ca7a7aac28ddf35", "chain_tx": "3bVg4oURUWirQ6FCAkqj5nyh1B6Dh8L8YRQUwF2hDE6Bx5am9g1tscwEAtaB7oMCRVhfH6sgRDKbNe8vsjc4tGe2", "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."}