Reputaction uses blockchain technology to certify product traceability, in particular, in order to certify who contributes to the design, manufacture and marketing of products. All product information is certified by the employees themselves on the blockchain (currently NEO but we could move to another one). Nobody can cheat with false information without being detected, even Reputaction, because once saved, information can not be deleted due to the design of the open-source smart contract that has been deployed by Reputaction, which is used by the relational value marketplace and which prohibits any deletion. To continue the project, we are releasing a mobile app to certify that producers are really based in the country they claim to be and other claims in Web of trust decentralized way. The app is called Web of Certifiers as part of the DeFi For Good ecosystem. The first international DeFi For Good attracted more than 200 participants: https://www.defi-for-good.com/