This project allows an institution to issue digital certificates. It creates pdf certificate files (or uses existing ones) and issues a hash representing those files into the Bitcoin network's blockchain. Now also supports Litecoin.
More information on creating certificates:
https://github.com/verifiable-pdfs/blockchain-certificates/blob/master/docs/create_certificates.md
More information on issuing existing certificates:
https://github.com/verifiable-pdfs/blockchain-certificates/blob/master/docs/issue_certificates.md
More information on the CRED Protocol and it's implementation:
https://github.com/verifiable-pdfs/blockchain-certificates/wiki