Since its launch in 2023, OKX Proof of Reserves has never 'missed an update,' driving healthy platform growth and ensuring the accuracy of user funds and net balance data—this is our unwavering commitment. OKX Proof of Reserves uses the 'zk-STARK' algorithm based on the 'Merkle Tree' system, so the lucky word for the 17th anniversary of the Bitcoin whitepaper is: Merkle Tree! Did you guess it right?