Dealing with multi-step verification processes for certification issuance in universities

As in any institution, universities have processes defined in an unique way, involving many verification steps. Issuance of end-of-course certificates require multiple signatures from authorities, instructors and in some cases administrative staff. After an initial work of single signature certificates using blockchain for education purposes, we generate a prototype including more than one signature over the infrastructure generated for the Smart Ecosystem for Learning and Inclusion or SELI project. This prototype records certificates in a private non-monetary blockchain network, and is provided as an open source project. Countries like Ecuador, Turkey, Uruguay, and Finland can share certificates from the SELI platform through local nodes. This article provides relevant details about the implementation of the system, always with the aim of re-use existing software to reduce implementation time.