Thank you Jupiter13! I will explain how it works below;

The Silver Token will be traded against the ETH using the ethereum blockchain.  The Silver Token is like a convertible note ( https://www.seedinvest.com/blog/startup-investing/how-convertible-notes-work ), meaning the ones who holds the Silver Token at the release of the closed Gold Token sale will get a priority and a discount. You do not need to hold the Silver Token all the way to the closed Gold Token release, you could sell all the Silver Tokens after the ICO and buy again before the release of the Gold Token to get the discount and priority. The convertible Silver Token is to take the prototype to product, so that is why it is like a normal convertible note.

Given that our project revolves around the vulnerability of conventional cryptography faced with quantum computing, the Gold Token is based on Bitcoin and features quantum encryption, making it both a testament to the feasibility of our technology and proof against quantum powered attacks. Further on, Bitcoin has the most solid code in the crypto space and best dev support.

I could see you have the links of linkedin of the members of the team, does it appear there their experience or have I to consult this data in your site or whitepaper?

Thank you for your fast and complete answer. I have a doubt, why do you use ethereum blockchain in the Silver Token and later Gold Token is based in Bitcoin? Why don't you use bitcoin features also for Silver Token?

I want to know what is exactly a yellowpaper and why it is necessary that there were a yellowpaper apart if the white paper for this project

A White paper is a presentation of a problem and the solution. Basically to highlight the features of the solution, product and service. Easily said: A project/product presentation. A yellow paper however, is a more formal approach to the technical specification of the project. Easily said: A technical specification of the project/product.

Many ICO-projects have a very shallow white paper, not really specifying anything else than vaporware. For us it is important to be as transparent as possible with our investors (hence the white paper+yellow paper) as we have a finished working prototype.

In your roadmap I can see:

(Emphasis mine)

Would it be safe to assume you're going to be implementing the technology you're talking about on this token?

I've done some more resarch in to the project and team. Looks really solid. Is it possible to take part in a presale? Should I email to info@quantum1net.com for that?

 OK, then if I understand well yellowpaper is for technical part and doubts, isn't it?