What does «HD» in HD Wallet mean?

AT -

HD is short for Hierarchical Deterministic

Typically, bitcoin wallets generate each new bitcoin address from a unique random number, requiring you to make a new separate backup each time you create a new address. To avoid losses from lack of backups, such wallets tend to use a single bitcoin address for all transactions.

 

 

HD wallets instead use a «master seed» (a number based on the 12 random words in Mycelium's case), to derive all future bitcoin addresses sequentially, with each new address created by appending a counter to the end of the seed. In this way, all the bitcoin addresses created by such wallets are «hierarchically determined» from a single seed, only need to be backed up once, and can be fully restored at any time in the future just from the backup of that single master seed. When using a single address wallet, all your transactions will be associated with a single address, and because all bitcoin transactions are public, anyone can see what addresses you are sending funds to and how much money you have.

The Backup gives the wallet a "starting point" (a secret) from there it is able to reproduce everything else it needs as it always does it the same way. This way you also only need to back it up once and not every time you add an address to your wallet.

HD wallets greatly improve your privacy by being able to generate new addresses whenever you send and receive funds, making your transaction activity and total balance very hard to track.

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Comments

  • Avatar
    Gregory Huddleston

    How do I deposit $ into my account?

  • Avatar
    Whetsel wade

    How do I deposit money in my account

  • Avatar
    Edh

    How can I access a wallet inside the HD account? That is to say, can the master seed grant me access and the ability to restore a singled account under its control?

    This is an important feature given how some applications will use the public address you sent tokens to them for certain functions.

  • Avatar
    Corey Alexander

    Why is money just disappearing out of my account!?