A service providing method of the present invention includes receiving sound source information on a sound source to be registered to the music platform and issuing a blockchain-based NFT that represents an ownership for the sound source; receiving a request for using a service related to the sound source registered to the music platform from at least one at least one service use terminal connected to the blockchain-based network; and in response to the received request, providing a service related to the sound source based on the blockchain-based NFT issued in advance for the sound source to the at least one service use terminal.