The Blockcerts standard provides extension to the Open Badges standard to store the verification information of the certificate using blockchain technologies to enforce the integrity and allow a distributed timestamping of the issued certificates.

Data model

The data model is the same as the Open Badges one, adding the required data so that certificates validation can be stored in a blockchain.


Details about the data model extensions are provided in the following document:


The only entity extended by Blockcerts which has no relation at all with storing and validating the certificates using blockchain technologies is the SignatureLine. A SignatureLine allows to place a handwritten signature picture in a certificate to improve its visualization.


In order to enforce the security of the certificate upon validating it, Blockcerts uses blockchain technologies as a way to store information to validate the certificate, including in it a hash and a digital signature.


Check this document for more information about the verification process: