Method for distributing certificate of right to use digital content, and computer program stored in medium in order to carry out method

A content management server comprising:

• a processor;
• a storage medium;
• and a communication unit, wherein the processor is configured to:
• determine an amount of issuance a certificate of right to use digital content corresponding to tangible goods;
• access a block chain system to generate blocks as many as the amount of issuance corresponding to the amount of issuance in accordance with the certificate of right to use the digital content through the block chain system and to add the blocks to the block chain system;
• receive data including key values of the generated blocks as many as the amount of issuance;
• generate authentication certificates including each key value as many as the amount of issuance in connection with the certificate of right to use the digital content;
• receive, from a first user terminal, a request to load a the digital content;
• receive first authentication certificate linked with the certificate of right to use digital content from the first user terminal such that the digital content is stored in a content folder of the first user terminal;
• transmit the first authentication certificate to the block chain system;
• receive information about whether first block corresponding to the first authentication certificate exists in the block chain system and determine a validity of the digital content stored in the first user terminal using the information;
• and
• provide a screen displaying a display area of digital content of the certificate of right to use when the first block exists or processing the digital content not to be played when the first block does not exist,
• wherein the digital content is in an electronic file format and includes at least one of picture, pictorial, sound source, webtoons, and web novel.

A non-transitory computer-readable storage medium storing instruction that, when executed by a processor, causes the processor to perform operations comprising:

• determining the amount of issuance of the certificate of right to use digital content corresponding to tangible goods;
• accessing a block chain system to generate blocks as many as the amount of issuance corresponding to the amount of issuance in accordance with the certificate of right to use the digital content through the block chain system and to add the blocks to the block chain system;
• receiving data including key values of the generated blocks as many as the amount of issuance;
• generating authentication certificates including each key value as many as the amount of issuance in connection with the digital content;
• receiving from a first user terminal a request to load a digital content;
• receiving first authentication certificate linked with the certificate of right to use digital content from the first user terminal;
• transmitting the first authentication certificate to the block chain system;
• receiving information about whether first block corresponding to the first authentication certificate exists in the block chain system and determining a validity of the digital content stored in the first user terminal using the information;
• and
• providing a screen displaying a display area of digital content of the certificate of right to use when the first block exists or processing the digital content not to be played when the first block does not exist,
• wherein the digital content is in an electronic file format and includes at least one of picture, pictorial, sound source, webtoons, and web novel.