Block chain service platform and method applied to online government affair business

The invention provides a block chain service platform and method applied to online government affair businesses, and the platform comprises a service object information obtaining module which is used for obtaining the service object information of a service object based on a preset information obtaining template; the trusted library construction module is used for constructing a trusted library of the service object on a preset block chain based on the service object information; the online government affair business handling service module is used for providing online government affair business handling service for the service object based on the trusted library; the authorized use request monitoring module is used for monitoring an authorized use request for the trusted library; the request verification module is used for carrying out request verification on the authorized use request; and the request permission module is used for permitting the authorized use request when the verification is passed. Accord