BoJ finds some CBDC designs suffer from bottlenecks

Digital currency

Some designs of central bank digital currency (CBDC) hit bottlenecks when dealing with high transaction volumes, a trial by the Bank of Japan finds.

The BoJ published findings from phase one of its CBDC proof of concept on May 26. The trial explored three possible ledger designs, testing each in an experimental environment built on a public cloud.

Design one involved the central bank operating the sole ledger on behalf of all participants. In design two, the central bank ran a ledger for

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