A bitcoin wallet backup using seed words, also known as a seed phrase or recovery phrase, is a method of backing up a bitcoin wallet that uses a sequence of words to represent the private keys of the wallet. This sequence of words is generated by the wallet software when the wallet is first created, and is typically 12 or 24 words long.
When a user creates a bitcoin wallet and is provided with a seed phrase, they are instructed to write down the sequence of words and store them in a safe and secure location. The seed phrase can be used to restore the wallet and access the bitcoin holdings stored in the wallet, even if the original wallet file is lost, damaged, or inaccessible.
The seed phrase is created using a process known as mnemonic code, which converts the private keys of the wallet into a series of words that are easy to remember and write down. Each word in the seed phrase represents a specific number, which is used to generate the private keys of the wallet.
When the user needs to restore their wallet, they simply enter the seed phrase into the wallet software and the software generates the private keys of the wallet based on the sequence of words. This allows the user to access their bitcoin holdings without the need for the original wallet file.
Backing up a bitcoin wallet using seed words is considered one of the most secure and reliable methods of backup, as it is easy to use, accessible, and can be used to recover the wallet from anywhere in the world. It is important to store the seed phrase in a safe and secure location, such as a fireproof safe or a safety deposit box, to protect against loss, theft, or damage.