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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:
https://slushpool.com/settings/security/

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:
https://bitcoinmagazine.com/articles/bitcoin-address-sign-1399914228

Trezor:
https://doc.satoshilabs.com/trezor-user/messages.html

Bitcoin-Qt and MultiBit:
http://support.bitcoin.cz/Knowledgebase/Article/View/36/2/how-to-sign-a-message-using-a-bitcoin-client
https://multibit.org/help/v0.5/help_signAndVerifyMessage.html

Coinbase:
https://support.coinbase.com/customer/portal/articles/1526413-how-do-i-sign-a-message-with-a-bitcoin-address-

Blockchain:
https://coins.newbium.com/post/1385-how-to-sign-message-your-bitcoin-address-and-verif

You can follow these instructions if you use some other wallets:
https://bitcointalk.org/index.php?topic=990345.0

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  1. Matej (Support)

  2. Posted
  3. Updated

Comments

  1. Faqih Udin

    kalo di vip.bitcoin.co.id gimana cara dapatkan signature?

  2. Neli (Support)

    Staff –

    Hello Kuldeep, you can try link: https://coins.newbium.com/post/1385-how-to-sign-message-your-bitcoin-address-and-verif
  3. aeroveneersandply@gmail.com

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

    Sangat keren
  5. Martin (Support)

    Staff –

    Hi, I would recommend you to ask their support if it is possible. Find the support link below: https://support.xapo.com/contact-us
  6. BLESSING SIMIRE

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

    Staff –

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

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

    Staff –

    Hi Joao, blockchain.org is not a wallet, but if you mean blockchain.info then it is possible, please find out more on the link below: https://support.blockchain.com/hc/en-us/articles/207744273-How-do-I-sign-a-message-from-a-bitcoin-address-
  10. Martin (Support)

    Staff –

    Hi Ridho, can you please be more specific? Do you need to unlock the wallet with signature obtained from Multibit or Bitcoin-Qt? Or another one?