The document is an honor code certificate from Osaka University through edX for Víctor Maestre Ramírez who successfully completed and received a passing grade in BIO101x: The Immune System: New Developments in Research. The certificate is signed by Toshio Hirano, the President of Osaka University and Director of the WPI Immunology Frontier Research Center at Osaka University, and Shizuo Akira, a Professor at Osaka University.