Casascius Coin

Physical bitcoins named Casascius are first introduced in 2011 by Mike Caldwell for purchasing. The difference between the coins we know and the Casascius coins is that Casascius coins are a certain type of physical coins, rather than being digital BTC. In 2011, Caldwell said in his blog “You asked for a change, I gave you coins.”

How Does Casascius Coins Work?

Each Casascius coins are have a key for a digital value of bitcoin accounts that are assigned. Even though Casascius coins are seen as the reflection of the relative worth of accounts, they are indeed secure containers for digital information. In this way, they unlock the BTC’s value. Casascius coins have an eight-character code that corresponds to the first 8 characters of a BTC address. The BTC addresses are assigned only for each Casascius coin. In other words, each BTC account’s private keys are embedded in the Casascius coins.

We know that digital BTCs are located online and embedded in the blockchain. However, these digital coins that are connected with Casascius coins are only accessible to the people who have the private key.

Is Casascius Good?

Each Casascius coin is designed to have a special tamper-evident hologram that saves the private key. Someone needs to peel off the label if they want to access the key. However, when the label is peeled off it leaves a honeycomb pattern that says the Casascius coin has been used before.

These holograms are produced specifically and they are really hard to track. It is nearly impossible the peel off the hologram without making it not look peeled off. The tamper-evident pattern is highly sensitive and cannot be concealed. In this way, it is OK to say that Casascius are extremely reliable. It is known that in the process of preparing coins many holograms are ruined. They are that sensitive.