Disclosed is a method for contesting a blockchain-based contest network system. The contest method of the blockchain-based contest network system according to the embodiment includes: (A) a consortium configuration step of requesting creation of a contest from a platform manager, a top node, which is a host of a higher competition that wants to hold a competition; (B) generating a private key-public key pair of candidates participating in the competition, and registering the candidates for the competition; (C) the administrator node registers voters who participate in the competition by generating a private key-public key pair and adding an account to the network only for authenticated users; (D) a voter node registered as a voter generates a voting transaction with the candidate's public key; And (E) a validator node generating an inquiry transaction, and checking the details of the transaction generated from the voter account to the candidate account through the generated inquiry transaction, and calculating a voting resu It includes.
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