An image forming system includes a processor configured to: set a usage right corresponding to the time of a concluded usage contract period; cause the usage right to expire for the amount of time used out of the set usage right; and if the usage right has expired entirely, activate a use-prohibited state that prohibits use of at least some functions of the system.

In accordance with some embodiments herein, a method is provided. The method includes determining a first resource associated with a first farm, wherein the first resource is a first type of resource, generating a first token for the first type of resource, allocating the first token to the first farm, and/or determining a first contract between the first farm and a first pool. The method includes allocating the first resource to the first customer request based upon the first contract responsive to a first customer request associated with a first service performable by the first type of resource. The method includes determining, using a first decentralized consensus mechanism, a first value associated with fulfillment of the first customer request via performance of the first service by the first resource. The method includes executing a first transfer of a first asset to the first farm based upon the first value.

An ownership and copyright integrating non-fungible token (NFT) system based on blockchain in a metaverse platform includes an input unit configured to receive NFT information on content based on an NFT, a token management unit configured to generate an NFT matching the received NFT information and provide a history management service for the NFT, rights holder authentication unit configured to integrate ownership and copyright in an equal share ratio and providing the integrated ownership and copyright to a user corresponding to the generated NFT, and a token transaction unit configured to perform NFT transaction with other users on the metaverse platform by using transaction information input by a rights holder to whom the ownership and copyright are provided, generate transaction completion information when NFT transaction is completed, and broadcast the transaction completion information to a blockchain network.