Casascius Coins

Casascius Coins, introduced in 2011 by Mike Caldwell, are physical representations of bitcoin designed to make the digital currency tangible. Each coin contains a private key concealed beneath a tamper-evident hologram, allowing holders to access the corresponding bitcoin value. These coins were produced in various denominations, including 1, 10, 25, 100, and 1,000 BTC, and were crafted from materials like brass and gold-plated alloys. The innovative design aimed to simplify bitcoin transactions and storage, especially for those new to the digital currency.

In 2013, the U.S. Financial Crimes Enforcement Network (FinCEN) classified the minting and sale of Casascius Coins as money transmission, requiring appropriate licensing. Consequently, Caldwell ceased production of loaded coins on November 27, 2013. Despite this, many unredeemed Casascius Coins remain in circulation, serving as both collectibles and functional bitcoin wallets. As of January 19, 2025, these coins collectively held 38,216.2 BTC, reflecting their enduring presence in the bitcoin ecosystem.

This page tracks still-active balances on Casascius Coins in circulation.