A method for issuing a digital credential for an entity by an issuer computer system, wherein the method comprises: • receiving an issuing request for issuing the digital credential via a network from a requesting computer system, wherein the issuing request comprises a domain associated with the requesting entity, an email address of an official representative of the entity and a decentralized identifier, • sending a registry query for a registry entry as proof of the existence of the entity via the network to a registry computer system, • in response to sending the registry query, receiving a digital registry extract of the entity as proof of existence via the network from the registry computer system, • checking a link between the domain and the decentralized identifier, • sending an email with an invitation to establish an encrypted communication channel to the email address, • in response to sending the email, establishing an encrypted communication channel between the issuer computer system and an ID wallet of the official representative of the entity via the network, • sending a request for a digital ID credential of the official representative of the entity with personal attributes of the representative via the encrypted communication channel, • in response to sending the request, receiving the digital ID credential via the encrypted communication channel, • verifying the authenticity of the digital ID credential, • checking the representation authorization of the official representative of the entity using the personal attributes of the digital ID credential and the digital registry extract of the entity, • on successful verification of the representation authorization, issuing the digital credential with entity-related attributes using the digital registry extract, • sending the digital credential in response to the received issuing request via the network to the requesting computer system. • receiving an issuing request for issuing the digital credential via a network from a requesting computer system, wherein the issuing request comprises a domain associated with the requesting entity, an email address of an official representative of the entity and a decentralized identifier, • sending a registry query for a registry entry as proof of the existence of the entity via the network to a registry computer system, • in response to sending the registry query, receiving a digital registry extract of the entity as proof of existence via the network from the registry computer system, • checking a link between the domain and the decentralized identifier, • sending an email with an invitation to establish an encrypted communication channel to the email address, • in response to sending the email, establishing an encrypted communication channel between the issuer computer system and an ID wallet of the official representative of the entity via the network, • sending a request for a digital ID credential of the official representative of the entity with personal attributes of the representative via the encrypted communication channel, • in response to sending the request, receiving the digital ID credential via the encrypted communication channel, • verifying the authenticity of the digital ID credential, • checking the representation authorization of the official representative of the entity using the personal attributes of the digital ID credential and the digital registry extract of the entity, • on successful verification of the representation authorization, issuing the digital credential with entity-related attributes using the digital registry extract, • sending the digital credential in response to the received issuing request via the network to the requesting computer system.