Ethereum co-founder Vitalik Buterin's new book, "Proof of Stake," will be published on September 27, compiling various articles he has written over the past 10 years, both physical and digital. Users can currently donate any amount of ETH to receive an NFT and a digital version of the book signed by Vitalik. For digital versions purchased on this website or anywhere, Vitalik Buterin promises to donate all proceeds to Gitcoin Grants. Additionally, pre-order the physical book and get a signed digital copy as well, with 90% of proceeds from book sales going to the Gitcoin Grants matching pool and 10% going to publishing partner Seven Stories Press to support independently published public products .