Blockcerts is an open standard designed by MIT Media Lab to digitally express a certificate and record it on a blockchain, so that it is always verifiable without any need to call for the issuing organization or platform.
The Blockcerts standard builds on the Open Badge 2.0 standard and connects it to blockchain technologies. Bestr writes its Blockcerts on the public Ethereum blockchain, using hashing and merkle-tree systems to ensure the lowest number of transactions and the highest level of privacy.