Bank of Korea (the country's central bank) is testing blockchain bonds. According to industry sources, the Bank of Korea has selected operating companies at the end of last year and has been developing a blockchain bond system. The difference between blockchain bonds and current bonds is that the records entrusted to the clearing house will be converted into a distributed ledger format and can be shared to multiple nodes at the same time through blockchain technology. However, it may take a long time to fully introduce blockchain bonds. Currently, the test is in the Proof of Concept (PoC) stage.