POSA Publishes Two White Papers The nonprofit cryptocurrency industry group Proof of Stake Alliance (POSA) has produced papers on receipt token legality. (Read More) Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Filed under: Bitcoin - @ February 25, 2023 9:49 am