While bitcoin continues to become more scarce every day, the most popular set of physical bitcoins, crafted by Mike Caldwell from 2011 to 2013, have become far scarcer than their digital counterparts. As of September 18, 2021, there are now less than 20,000 active bitcoins from the Casascius physical bitcoin collection.
Casascius Physical Bitcoin Collection Grows Scarcer
Bitcoin has become a well-known technology and in the early years a number of people and c