Abstract: Disclosed is a mobility service platform including: a public transportation inquiry server for collecting traveling information for a public transportation; and a mobility service server for providing a mobility service for transporting a user via a rideshare vehicle traveling on a route based on a request from the user, and for providing a transfer service between the rideshare vehicle and the public transportation. The mobility service server may receive a starting location and a destination from a user terminal for providing the mobility service, receive the traveling information from the public transportation inquiry server, generate, based on the starting location, the destination, and the traveling information, at least one recommended route among a plurality of routes that are traveled by a combination of the rideshare vehicle and the public transportation, and reserve the mobility service based on the at least one recommended route.

Abstract: A mobility service apparatus receives a call for vehicle assignment from a user device, determines a vehicle to be assigned to the user device, determines a surcharge rate to be applied to a fare based on an estimated waiting time of the call from the user device when a predetermined condition is satisfied, and transmits an assignment acceptance request, including information related to the surcharge rate, to the user device.

Abstract: A method may achieve an agreement among a plurality of nodes executed by one or a plurality of processors of a blockchain system including a distributed network of the plurality of nodes. The method may comprise: receiving a candidate block in a N-th round (N is a positive integer) by an arbitrary node among the plurality of nodes able to be promoted to producer nodes having a block generation status at a predetermined time for each round, determining whether the received candidate block is a valid candidate block, determining whether the valid candidate block is an unapproved block, and determining whether to vote for approval of the unapproved block by determining whether the unapproved block is a first received candidate block which is a first received candidate block within the N-th round by the arbitrary node.

Abstract: A method may achieve an agreement among a plurality of nodes executed by one or a plurality of processors of a blockchain system including a distributed network of the plurality of nodes. The method may comprise: receiving a candidate block in a N-th round (N is a positive integer) by an arbitrary node among the plurality of nodes able to be promoted to producer nodes having a block generation status at a predetermined time for each round, determining whether the received candidate block is a valid candidate block, determining whether the valid candidate block is an unapproved block, and determining whether to vote for approval of the unapproved block by determining whether the unapproved block is a first received candidate block which is a first received candidate block within the N-th round by the arbitrary node.