This project will have several tokens. The tradable one is supposed to be an ETH token, and what will be the tokenization and notarization token? You cannot possibly use ETH for that, its way too unstable. Did you consider alternatives?
The ERC20 token is a membership token. As the project expands and we work to on the tokenization of documents, we some ideas for how to do this. We have on our team Peer Chemist, who heads the PPC project. You may see some work he has done with the Peer Asset Protocol on GitHub, which we find very interesting.