Bankman-colleague Fried's Caroline Ellison agreed to disguise the loans from FTX investors.
Alameda Research has secretly lent billions to FTX leaders including Sam Bankman-Fried.
Ellison and FTX cofounder Gary Wang pled guilty and agreed to cooperate with prosecutors.
Their sworn affidavits show how two of Bankman-former Fried's associates might testify as prosecution witnesses.
Bankman-Fried admitted risk-management failings at FTX but denied criminal culpability. He's yet to plead.
Bankman-Fried started FTX in 2019 and rode a Bitcoin boom.
other digital assets to become a multi-billionaire and important US political donor.