<prompt> Pheta-phetola polelo e latelang ka mantsoe a fokolang.Bitcoin ke chelete ea dijithale e arolelitsoeng.  <response>: Instruction in English: Reword the following sentence using fewer words. . Response in English: Bitcoin is a digital currency without a central authority. . Response in Sesotho: Bitcoin ke chelete ea dijithale ntle le bolaoli bo bohareng. 