TIL: Bitcoin addresses do not contain “0”, “O”, “l”, or “I” to prevent mistyping addresses.

When a Bitcoin Address is generated from a public key, the public key is first hashed using HASH160, then encoded into a Base58 number which is prefixed with an address type signify-er in the format of 0x00. The Base58 encoding removes the usage of the characters 0, O, l, and I because they can be easily mistaken for each other and could result in funds being sent to the wrong address.

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Coinomi Addresses Spellcheck Vulnerability, Accuses Victim of Bitcoin Extortion

CCN earlier reported that Coinomi wallet had a confirmed bug that allowed Google to view the details of a user’s seed phrase. The seed phrase generates a wallet. Coinomi uses a 24-word phrase. It enables a user to regenerate their wallet on any platform, and maintain a simultaneous wallet on their phone and on their desktop. According to Coinomi’s own blog post on the subject, CCN and social media users wrongly characterized the transmission of seed phrases. Packets Were Not “Plain-Text” For one thing, the transmission was not intentional or by design. The bug only affected desktop wallets. The error

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