Scheduling in a Blockchain

Sammanfattning: Fewer customers in Sweden are using cash in their everyday transactions than ever before. If this trend continues, then the Swedish payment system will, in a few years, be entirely controlled by private companies. Therefore the central bank needs a new digital asset trading platform that can replace the reliance on private companies with a system supplied by a government entity (central bank). This thesis revolves around the creation of a digital asset trading platform focused on the capital market, which can serve that role. The primary focus of the thesis is to investigate how time can be introduced to a blockchain so that events such as a coupon payment or a dividend can be scheduled to occur at a specific time. The digital trading platform created as part of this thesis was after creation tested to ascertain the best method of introducing time. The results presented in this thesis show that one of the methods has a higher accuracy, with a 1.3 seconds average between the desired execution time and the actual execution time. The platform was also used to evaluate the feasibility of a digital "currency" based on blockchains, as a replacement for credit cards supplied by Mastercard or Visa. The results indicate that a blockchain solution is a somewhat feasible replacement while suffering from some disadvantages, primarily in throughput.