Abstract: One or more embodiments of the specification provide a blockchain-based relationship binding method, apparatus, and device. An exemplary method may include: receiving a user binding request including a binding tag, the binding tag includes (1) a binding type of a binding relationship, and (2) role information of the second user in the binding relationship; sending a confirmation request to a second user; retrieving a relationship table of the second user; in response to the binding type in the user binding request includes a one-to-one binding relationship: determining whether the one or more binding types in the relationship table of the second user include the binding type in the user binding request, and if yes, terminating the method; and generating a record of binding relationship; writing the record of binding relationship into a blockchain; and updating the relationship table in the local database.

Abstract: One or more embodiments of the specification provide a blockchain-based relationship binding method, apparatus, and device, wherein the method comprises: receiving a user binding request comprising a binding tag, the binding tag includes (1) a binding type of a binding relationship, and (2) role information of the second user in the binding relationship; sending a confirmation request to the user terminal of the second user; retrieving a relationship table of the second user from a local database of the blockchain node; in response to the binding type in the user binding request comprises a one-to-one binding relationship: determining whether the one or more binding types in the relationship table of the second user comprise the binding type in the user binding request, and if yes, terminating the method; and generating a record of binding relationship; writing the record of binding relationship into the blockchain; and updating the relationship table in the local database according to the user binding reques