This is basically a BSD/MIT license plus a CLA/DCO style clause. Please don't create a new license; just use ones that already exist.
https://julien.ponge.org/blog/in-defense-of-contributor-lice... http://elinux.org/Developer_Certificate_Of_Origin
https://julien.ponge.org/blog/in-defense-of-contributor-lice... http://elinux.org/Developer_Certificate_Of_Origin