Galaxy Research(@glxyresearch):Casascius coins are physical coins containing a Bitcoin private key behind a hologram. If the hologram is peeled, the private key is revealed & BTC can be spent onchain. Roughly 28k coins were minted holding 91,469k BTC between 2011-2013. Only ~35.3k BTC are held on them today.

Galaxy Research

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Galaxy Research@glxyresearch

2026.06.30 10:45

Casascius coins are physical coins containing a Bitcoin private key behind a hologram. If the hologram is peeled, the private key is revealed & BTC can be spent onchain. Roughly 28k coins were minted holding 91,469k BTC between 2011-2013. Only ~35.3k BTC are held on them today.