Hi, this is very good guidance. How can I sign a message so that I can prove a certain email belongs to me?

thanks for your help

I don't think there is a way to do it to prove that you own an email address as such... signing only allows you to prove that you are in control of a private key/bitcoin address.


The simple answer is that (generally) you can not get the private key for addresses controlled by exchanges, thus you can not sign messages for exchange wallet addresses. Get a "proper" wallet where you can access the private keys

how to do it in new blockchain.info wallet the new version of block chain as i can see any option to do it .

Do we include the private key in message? If yes, is it not problem?
And where to post the signed message to proof my bitcointalk? So if get hack i can use it to proof.

Yup, i totally agree never put/give other people your private key, it is the only way to get your account back if you got hacked someday, and it's also the thing that convinces you as the real owner or not.

No. You don't own any of your Coins.ph addresses. And that's why you don't use a web/hosted wallet.

No, he meant that if you use coins.ph, it means that your keys are stored by third party so technically, you Don't own those coins.
Instead on depending and trusting a third party, you must setup your own wallet. It can be bitcoin core or electrum, which provides you with private keys.
You can use them to sign messages.

This is my trial run for signed messages with my Bitcoin Core 0.15.1 wallet:


Looking forward to your critiques!

Thanks. Now to click capcha tests for pennies to earn BTC since Coinbase doesnt like me ;<