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Throughout the course of Bitcoin history, there have been some rather unique addresses. Some users resort to vanity generation solutions, which allow anyone to create an address with specific letter combinations that matter to them. In 2017, this process has become more complicated, as it takes days, or even weeks, to generate a vanity address. Some have spent a long time searching for those addresses, while others luckily stumbled upon them.

#5 The Longest Real-word Prefix

As most people are well aware of, some Bitcoin addresses are generated automatically yet seemingly contain a word that exists. Lightlord, a long-standing Bitcoin user, generated the world’s longest real-world prefix address known to date. Through a very thorough vanity generation process, he managed to find an address containing the word “Embarassable“. Even though the address contains upper and lower case letters, it is the longest word found in a single Bitcoin address so far.

#4 Longest Lowercase Prefix

One thing that makes Bitcoin addresses so difficult to remember and type in manually is the mix of lowercase and uppercase letters. RyanC successfully generated a Bitcoin address which contains no uppercase letter whatsoever. Even though this address does not contain sequence of words whatsoever, it is well worth noting. Under the current circumstances, generating such a password would take up a lot of time and computational resources.

#3 A Palindrome Address

Palindromes are quite intriguing in their own right, even though most people would never give them a second glance. The Bitcoin world has at least one palindrome address, which was generated by xhomerx10. To be more precise, it is an address that starts with 1234″ and ends with “4321:.

Having a Bitcoin address that begins with “1234” is rather unusual, to begin with, although not all of these wallet addresses are the product of vanity generation tools. So far, this is the only palindrome address most people are aware of, although it is not an unlikely multiple of these addresses exist. That said, it is quite an interesting vanity address, that much is certain.


#2 The Shortest Bitcoin Address

HugoTheSpider is the proud owner of the shortest Bitcoin address known to Man right now. His address contains a total of 31 characters, compared to the regular length of 34 characters. To some people, this may not seem all that significant, yet it goes to show Bitcoin addresses can be kind of interesting to take a closer look at.

#1 The All-Uppercase Address

One of the more unique Bitcoin wallet addresses ever discovered is one that has not been used since 2013. At the time of writing, the address had no remaining balance, and it is unclear how this was generated in the first place. It is uncommon to find an address with only uppercase letters, except for the obligatory “1” with which most older Bitcoin addresses begin.

A lot of Bitcoin addresses contain a fair amount of uppercase letters. However, they are usually mixed with lowercase letters and other numbers. This particular address is unique in this regard, although it is possible this not a result of vanity generation. No one knows who the address belongs to, which only adds more intrigue.

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