Management device, cryptocurrency system, and system

A management device connected to a plurality of user devices via a network, the management device comprising:

• an issued information storage area that stores a cryptocurrency ID of an issued cryptocurrency;
• an account information storage area that stores account information in association with one or a plurality of cryptocurrency IDs;
• and
• a history information storage area that stores history information of a cryptocurrency in association with a cryptocurrency ID,
• wherein, when receiving a sell order specifying account information from one of the user devices, the management device determines propriety of buying intervention conditions including conditions in which
• target price is a prescribed buying intervention setting price or less,
• the account information specified by the sell order is stored in the account information storage area,
• a cryptocurrency ID stored in the account information storage area in association with the account information specified by the sell order is stored in the issued information storage area, and the cryptocurrency ID stored in the account information storage area in association with the account information specified by the sell order is stored in the history information storage area in association with history information, and when the buying intervention conditions are met, the management device performs buying intervention processing with a determination that buying intervention for the cryptocurrency ID stored in the account information storage area in association with the account information specified by the sell order is established, and
• the buying intervention processing includes
• a step of deleting, from the account information storage area, the account information specified by the sell order and the cryptocurrency ID for which the buying intervention has been established, and storing account information of the management device and the cryptocurrency ID for which the buying intervention has been established in the account information storage area in association with each other, and
• a step of storing the cryptocurrency ID for which the buying intervention has been established and history information indicating that the buying intervention has been performed in the history information storage area in association with each other.

A cryptocurrency system comprising:

• a management device connected to a plurality of user devices via a network, the management device comprising:
• an issued information storage area that stores a cryptocurrency ID of an issued cryptocurrency;
• an account information storage area that stores account information in association with one or a plurality of cryptocurrency IDs;
• and
• a history information storage area that stores history information of a cryptocurrency in association with a cryptocurrency ID,
• wherein, when receiving a sell order specifying account information from one of the user devices and a buy order specifying account information from another of the user devices,
• the management device determines propriety of buying and selling mediating conditions including conditions in which the account information specified by the sell order is stored in the account information storage area,
• a cryptocurrency ID stored in the account information storage area in association with the account information specified by the sell order is stored in the issued information storage area, and
• the cryptocurrency ID stored in the account information storage area in association with the account information specified by the sell order is stored in the history information storage area in association with history information, and when the buying and selling mediating conditions are met, the management device performs buying and selling mediating processing with a determination that buying and selling for the cryptocurrency ID stored in the account information storage area in association with the account information specified by the sell order is established, and
• the buying and selling mediating processing includes
• a step of deleting, from the account information storage area, the account information specified by the sell order and the cryptocurrency ID for which the buying and selling has been established, and storing the account information specified by the buy order and the cryptocurrency ID for which the buying and selling has been established in the account information storage area in association with each other, and
• a step of storing the cryptocurrency ID for which the buying and selling has been established and history information indicating that the buying and selling of the cryptocurrency has been established in the history information storage area in association with each other;
• and
• a plurality of user devices connected to the management device via a network.

A cryptocurrency system comprising:

• a management device connected to a plurality of user devices via a network, the management device comprising:
• an issued information storage area that stores a cryptocurrency ID of an issued cryptocurrency;
• an account information storage area that stores account information in association with one or a plurality of cryptocurrency IDs;
• and
• a history information storage area that stores history information of a cryptocurrency in association with a cryptocurrency ID,
• wherein, when receiving a sell order specifying account information from one of the user devices and a buy order specifying account information from another of the user devices,
• the management device determines propriety of buying and selling mediating conditions including conditions in which the account information specified by the sell order is stored in the account information storage area,
• a cryptocurrency ID stored in the account information storage area in association with the account information specified by the sell order is stored in the issued information storage area, and
• the cryptocurrency ID stored in the account information storage area in association with the account information specified by the sell order is stored in the history information storage area in association with history information, and when the buying and selling mediating conditions are met, the management device performs buying and selling mediating processing with a determination that buying and selling for the cryptocurrency ID stored in the account information storage area in association with the account information specified by the sell order is established, and
• the buying and selling mediating processing includes
• a step of deleting, from the account information storage area, the account information specified by the sell order and the cryptocurrency ID for which the buying and selling has been established, and storing the account information specified by the buy order and the cryptocurrency ID for which the buying and selling has been established in the account information storage area in association with each other, and
• a step of storing the cryptocurrency ID for which the buying and selling has been established and history information indicating that the buying and selling of the cryptocurrency has been established in the history information storage area in association with each other is provided in plurality, the management devices being hierarchized in a tree form and connected to each other, and wherein
• the management devices belonging to one hierarchy include
• the respective issued information storage areas for the own devices, the respective account information storage areas for the own devices, and the respective history information storage areas for the own devices, and
• the respective issued information storage areas for other devices, the respective account information storage areas for other devices, and the respective history information storage areas for other devices, and
• the issued information storage areas for other devices, the account information storage areas for other devices, and the history information storage areas for other devices provided in the management devices belonging to the one hierarchy respectively store information stored in the issued information storage areas for the own devices, information stored in the account information storage areas for the own devices, and information stored in the history information storage areas for the own devices of the management devices belonging to a hierarchy immediately below the one hierarchy.