Proof of StakeWhat is proof of stake in blockchain technology? The proof o... More Alliance (POSA) https://www.proofofstakealliance.org/about-us/ is an action-oriented industry alliance advocating for forward-thinking, innovation-friendly regulation of the growing proof-of-stake industry. POSA brings together industry leaders and legal experts to amplify the voices of proof-of-stake protocols, educate lawmakers about this emerging technology, and fight for fair regulation that allows the industry to flourish.