After a volatile election season where 100 million Americans cast ballots early, the U.S. Postal Service (USPS) has filed a patent for blockchain mail-in-voting. Some users on Reddit were quick to point out that the patent looks similar to a thorough report, "How Blockchain Technology Can Prevent Voter Fraud," written for the Investopedia website. Simply put, a blockchain is like public spreadsheet (or digital ledger) that records transactions. It takes a lot of energy to add or confirm even a single transaction on a digital ledger, making the entire network highly secure and incorruptible. But the most important feature of blockchains, as they pertain to voting, is that they are highly transparent networks that cannot be taken down or influenced by a single party because it doesn't exist in one place. Fortune 500 companies are already using blockchains to track products through complex supply chains, so it makes sense for USPS to be interested in blockchains, too. The USPS embraced mail-in voting for the first time in 1978, when California became the first state to allow voters to apply for an absentee ballot without having to provide an excuse, citing the higher level of security and convenience. This is a similar value proposition by blockchains. The patent states that the process begins when “a registered voter receives a computer readable code in the mail and confirms identity and confirms correct ballot information in an election. The system separates voter identification and votes to ensure vote anonymity, and stores votes on a distributed ledger in a blockchain.” Blockchain voting could eliminate concerns of double voting because the individual voters would be broadcasted everywhere on the blockchain network immediately. This method seems promising for the future of elections to come.