We currently make use of three methods although more can be easily added according to the clients’ requirements. First, a domain name verification is used where our client proves ownership of a domain name that they are using. Second, Block.co provides a verification service that can also be used. And finally, a GitHub verification method can be used where the client uses their GitHub account to prove ownership of their identity.
Although, each one of the identity verification methods above are centralized, when used in conjunction ensure that there is no centralized point of failure.