Aspects of the disclosure relate to multicomputer systems and methods for data authentication and event execution. Any full node computing device in a network, including a data authentication and event execution computing platform, may receive a blockchain and a token associated with authenticating data included in the blockchain. The computing platform may analyze the data included in the blockchain to determine that another token must be received for data authentication. The computing platform may generate a request for the second token and transmit the request to the appropriate network device. The network device may then either approve or reject the request for an authentication token. If the appropriate number of devices authenticate the data in the blockchain by providing a token, then an associated event may be executed.