I have accomplished anonymity in this respect (payment tracking) by purchasing visa gift cards with cash and registering a domain with said gift card.

I’m still sure I could be identified somehow.

Funny enough I was planning to do something along the lines of an ICO through this anonymous website/page and provide the ICO funds and transfer the domain itself to whoever identified me as the domain owner.

Surely Whois information does not include detailed information about past payments?

No, but as long as a payment to a CC is going through, then the registrar assumes you are "identified".