Abstract: A blockchain-based workflow node certification method includes a certification party establishing a general workflow template. The general workflow template includes a plurality of workflow nodes each having an audit attribute for indicating whether the workflow node needs to be certified. The certification party establishes a general data template based on the general workflow template, and the general data template and the general workflow template are instantiated. A current workflow node is acquired in the instantiated general workflow template, and whether the current workflow node needs to be certified-is determined, based on the audit attribute. Certification, if needed, is performed by a centralized certification party, and users can create and modify transaction processes as needed to meet the needs of changeable transactions. By combining central certification with blockchain certification deposition, the security of workflow node process implementation and the privacy of specific data are ensured.

Abstract: A blockchain-based workflow node certification method and device. The method includes: a certification party establishing a general workflow template. the general workflow template including a plurality of workflow nodes cach having an audit attribute for indicating whether the workflow node needs to be certified: the certification party establishing a general data template based on the general workflow template: instantiating the general data template and the general workflow template: and acquiring a current workflow node in the instantiated general workflow template. determining. based on the audit attribute, whether the current workflow node needs to be certified. if yes. performing certification by a centralized certification party. and depositing certification by a blockchain. Users can create and modify transaction processes as needed to meet the needs of changeable transaction. By combining central certification with blockchain certification deposition.

Abstract: A computer-implemented method and device for implementing identity endorsement on a blockchain are provided. In some embodiments the method includes that: a user submits, as an applicant, certification information to a third-party certification authority, the third-party certification authority reviews and generates a certification statement, and the third-party certification authority deposits deposit information of the certification statement on the blockchain, and returns the certification statement including the deposition information to the user; an information requester requests for the certification statement from the user, and the user decrypts the certification statement and then sends the certification statement to the information requester; and the information requester checks in the blockchain, verifies validity of the certification statement and qualification of the third-party certification authority, and completes user identity certification after confirmation.