Physical Bitcoin Projects Face Challenges in Usability

Physical Bitcoin projects aim to make Bitcoin function as a bearer asset, but they encounter significant challenges related to private-key security and hardware costs. According to NS3.AI, various initiatives such as Casascius coins, Opendimes, Satodime cards, OfflineCash bills, and Tapsigner cards represent different approaches to addressing these issues. Despite these efforts, the limitations in security and cost continue to hinder the widespread adoption of physical Bitcoin solutions.