Cosigno app for iPhone and iPad

Use the Cosigno Mobile App on your smartphone to scan the QR-code on the Certificate of Origin and it will retrieve the original, so that you can visually compare it with the paper version. Use your web browser on your desktop or laptop computer to retrieve a Certificate of Origin with the hash value and the CO number.

Use your the Cosigno Mobile App to verify the authenticity of an e-CO. Cosigno guarantees a decentralized proof of existence using blockchain technology. Cosigno does not store the complete document in the blockchain, we only store a cryptographic digest of the file. The key advantages are anonymity, privacy and a proof that can’t be erased or modified by anyone. Your e-CO’s existence is permanently validated by the blockchain.