Computer-readable recording medium storing blockchain management program, blockchain management device, and blockchain management method

A blockchain management device comprising:

• a memory;
• and
• a processor coupled to the memory and configured to:
• identify a specific group that includes a subject device among a plurality of groups that each includes a plurality of devices that holds a ledger, based on identification information that corresponds to the subject device, in a mining process to generate a block from a newly generated transaction and store the block as part of the ledger;
• determine whether a group that corresponds to a past block selected during the mining process is the specific group;
• and
• determine an incentive for success in the mining process to be a first incentive when the group that corresponds to the past block is determined to be a group other than the specific group, and determining an incentive for success in the mining process to be a second incentive that is a sum of the first incentive and an additional incentive when the group that corresponds to the past block is determined to be the specific group.

A blockchain management method comprising:

• identifying a specific group that includes a subject device among a plurality of groups that each includes a plurality of devices that holds a ledger, based on identification information that corresponds to the subject device, in a mining process to generate a block from a newly generated transaction and store the block as part of the ledger;
• determining whether a group that corresponds to a past block selected during the mining process is the specific group;
• and
• determining an incentive for success in the mining process to be a first incentive when the group that corresponds to the past block is determined to be a group other than the specific group, and determining an incentive for success in the mining process to be a second incentive that is a sum of the first incentive and an additional incentive when the group that corresponds to the past block is determined to be the specific group.