SAN aims to build a universal “Contribution Graph”: a verified, distributed & immutable register of projects & who contributed to them. Such a system can answer the following question: Who contributed what, where? e.g. “Linus Torvalds created the Linux Kernel” or “Brian Chesky co-founded AirBnB in 2008”. Such a register can be of tremendous value to the creative professions in the Open Source and Startup communities.