A physical Casascius 25 BTC coin was redeemed after 15 years, unlocking roughly $2 million in Bitcoin. Here's why these vintage tokens still matter.

The S1-COIN-25 physical bitcoin, part of Mike Caldwell's 2011-2013 mint, had its tamper-evident hologram peeled and the 25 BTC swept on-chain on Wednesday.

Physical Casascius coins were minted 15 years ago in the early days of Bitcoin—and the BTC held within is worth a whole lot more today.

A physical Casascius 25 BTC coin was redeemed after 15 years, unlocking roughly $2 million in Bitcoin. Here's why these vintage tokens still matter.