YC (Younkert Capitals) uses blockchain and smart contract technology to realize fiat currency exchange and transfer on the decentralized cross-border trading platform, and upload data such as clearing books to the chain, referring to the safety requirements of global regulatory laws and regulations and financial ISO International standards, based on blockchain technology, establish a public chain network protocol, establish an effective connection between financial institution ledgers and blockchain distributed ledgers, realize cross-chain transfers of inter-bank transactions and data, and support online Legal currency swap, transaction transfer and offline payment exchange meet the requirements of transaction processing efficiency and regulatory privacy protection, and realize the mutual cooperation of complex international financial services such as cross-border payment.