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How can I create 50,000+ bitcoin addresses in my wallet?

I will need more than 50,000+ addresses in my main wallet. I use Bitcoin Armory, Bitcoin-Qt and I'm just trying out Blockchain.info.

Is it possible to generate 50,000+ addresses in my wallet? If I use bBitcoin-Qt or Armory I can create addresses manually, but I need something to automate this system.

Is it possible? Is there some API for this?

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You can have Bitcoin-Qt generate 50k addresses by starting it with the parameter -keypool=50000.

They will not all be visible in the client interface, most will be just hidden as unused backup addresses, but they will all be stored in your wallet.dat.

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The Satoshi Bitcoin client (bitcoin-qt or bitcoind) has an RPC API which is the most common way to interact with it programatically. You can use the getnewaddress command to create as many addresses as you like. I know of no reason why it shouldn't be able to handle 50,000 or more.

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  • Memory leaks (of temporary used memory)?
    – Peter Mortensen
    Commented Feb 23, 2014 at 11:58
  • @Peter: I'm not aware of the Satoshi client having such bugs, are you?
    – Nate Eldredge
    Commented Feb 23, 2014 at 15:45

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