seed phrase The key to your access to your money

 the phrase seed recovery phrase and backup seed is a list of words that stores all the information needed to recover Bitcoin money on the chain.

 phrase seed  money
phrase seed

Wallet usually creates seed phrase and asks the user to write it down on paper.
If the user’s computer crashes or its hard disk is damaged.
It can download the same wallet software again and use the paper backup to restore their bitcoins.
These phrases are an excellent way to back up and store Bitcoin currencies.
Thus it is used by almost all of their respectable wallets.
Seed phrases can only backup money on a block chain.
They cannot store the funds involved in off-chain transactions such as the Lightning Network or blind bearer certificates.
Although these technologies are still in their infancy as of 2019.
However, its possible initial expressions can be used to back up it.
It’s not safe to invent your own phrase phrase because humans are bad at generating randomness.
The best way is to allow the wallet program to create a sentence that you write.
How carefully chosen the word list from which the initial phrase words are extracted so that the first four letters of each word are sufficient to uniquely identify them.
This compares well with writing a raw private key as one unread or incorrect character can make the private key useless.

seed phrase, like all backups, can store any amount of bitcoins.

It is a worrying idea that you can have enough money to buy the entire building by simply sitting on a sheet of paper without any protection.
For this reason, many wallets allow encryption of an initial phrase with a password.
The password can be used to create an initial two-factor statement, where both “something you have” plus “something you know” is required to unlock bitcoins.
This works through the wallet to create an initial phrase and asks the user for a password.
Then both the phrase phrase and an additional word are required to retrieve the wallet.
Electrum and some other wallets call the passphrase “Initial Supplement”, “Extension Word” or “13th / 25 Password”. BIP39 standard defines a passphrase protection.
A similar scheme is also used in the Electrum standard. If there is no passphrase, an empty string is used instead.

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