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How to sign a message with your Bitcoin address

This is a way to prove you do possess a particular Bitcoin address, therefore rightful owner of the account. 

You can sign any message using your private key, creating an encrypted string - a signature. Once you have valid signature please follow this procedure on Security tab in order to unlock your payout address:

HINT: When signing message, please make clear what is and what isn't a part of the message, and be aware that every character, including spaces, tabs and line breaks, is a part of the message.

Depending on the wallet provider, please follow instructions how to sign a message on the links below.

This is a general information how to sign your message with your BTC address:


Bitcoin-Qt and MultiBit:


You can follow these instructions if you use some other wallets:

Choose files or drag and drop files
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  1. Matej (Support)

  2. Posted
  3. Updated


  1. Faqih Udin

    kalo di gimana cara dapatkan signature?

  2. Neli (Support)

    Staff –

    Hello Kuldeep, you can try link:

    the above link is not working. support please post new link want to sign a message.
  4. Muhammad ridha

    Sangat keren
  5. Martin

    Staff –

    Hi, I would recommend you to ask their support if it is possible. Find the support link below:

    Please i try doing the message signing on my xapo wallet but could not find the link. Is it possible with xapo?
  7. Martin

    Staff –

    Hi Raanan, there are many wallets out there. Feel free to try either hardware wallets like Trezor or wallets like CoPay, Mycelium, or
  8. Raanan Nevet

    is there an alternative way for wallets like greenaddress?
  9. Martin

    Staff –

    Hi Joao, is not a wallet, but if you mean then it is possible, please find out more on the link below: