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Proof-of-stake is a mechanism for achieving consensus on a blockchain—a technology that records transactions that can’t be deleted or altered. It’s a decentralized database, or ledger, that is not controlled by any one person or organization. Since no one controls the database, consensus mechanisms such as proof-of-stake are needed to coordinate the operation of blockchain-based systems.

Scott Ruoti, assistant professor of computer science at the University of Tennessee, Knoxville, explains for The Conversation that while Bitcoin popularized the technology, blockchain is now a part of many different systems, enabling interesting applications such as decentralized finance platforms and non-fungible tokens, or NFTs. Read the full article on The Conversation.

UT is a member of The Conversation, an independent source for news articles and informed analysis written by the academic community and edited by journalists for the general public. Through our partnership, we seek to provide a better understanding of the important work of our faculty.


Lindsey Owen (865-974-6375,