According to official news, OKX officially launched the packaging of Bitcoin asset xBTC on May 22, 2025, and simultaneously opened the charging and withdrawal services of the three major chains of Solana, Sui, and Aptos. Through xBTC, users can seamlessly participate in the multi-chain DeFi ecosystem, support on-chain functions such as lending and liquidity mining, and further realize the multi-chain liquidity and revenue expansion of BTC. In addition, OKX Wallet will also launch revenue products around xBTC one after another, connect to ecological head DeFi protocols such as Solana, Sui, and Aptos to enjoy additional ecological incentives. Users can easily participate in one-stop operations, so stay tuned. It is reported that xBTC is an encapsulated bitcoin issued by OKX. It strictly follows the 1:1 reserve mechanism. Users can withdraw BTC from the exchange to the target chain to obtain the equivalent value of xBTC; they can also recharge xBTC back to the exchange through the target chain and exchange it for BTC. The platform verifies asset transparency in real time through on-chain Proof of Reserves (PoR) to further ensure the security of user assets.