Contents blockchain platform

A content right management method, comprising:

• receiving contents from an owner of the contents;
• generating a create key, which represents an ownership interest for the contents, by encrypting the contents using encryption information associated with the owner of the contents, wherein the create key includes a copyright of the contents and a creation right of the contents, and wherein the creation right of the contents includes a right to create encrypted contents and a right to create a coin;
• setting a number of copies of encrypted contents and a number of coins to be created for the create key;
• creating the encrypted contents in accordance with the number of copies of encrypted contents and the coin in accordance with the number of coins;
• distributing the encrypted contents to allow users to access the encrypted contents;
• and
• receiving one or more coins from a user among the users for using the encrypted contents based on information on a usage right option and a period of use of the contents, the information being included in the one or more coins.