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Author Topic: signing a message in blockchain.info  (Read 124 times)
Tyrantt
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December 06, 2017, 10:14:55 AM
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This may sound dumb but I'm having trouble signing a message with the updated blockchain.info wallet.

My current address is 1DT2ttQ7kxBiPZngRyXcwodKjZ8Q6oxCgG and it's not shown in settings > addresses and then on the bottom in archived addresses. I've found it in addresses > the chosen default one > manage and then on the bottom "used addresses" but there's no option to sign a message.

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Make sure you back up your wallet regularly! With Bitcoin-Qt, it needs to be backed up at least as often as every 100 transactions (both sends and receipts) or new addresses.
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December 06, 2017, 10:31:32 AM
 #2

As far I as know you can only be signed message on blockchain.info with your imported address. But as I tried to access my blockchain.info account and tried to find the signing message but it seems that they removed this feature now. But the verifying message is still there, dunno if what's the reason why they removed it without notifying their users.

EDIT: Okay I found it! Blockchain.info hide this feature. This might be complicated but working.
Must use a desktop/PC, Go to Settings > Addresses > Scroll Down > Choose the address you want to signed message, Click the "More Options" then Right click the "Spend" then click "Inspect Element"

You will see like this
Code:
<li>...</li>
<li>...</li>
<li>...</li>
<li>...</li>

Then click the 4th one, and you will see like this
Code:
<li><a translate="SIGN_MESSAGE" ng-hide="address.isWatchOnly" ng-click="signMessage()" class="ng-hide">Sign Message</a></li>
Then double click this "ng-hide" on the class and delete it, now click anywhere on the console and the "Sign Message" button will now appear on the dropdown. And you can try to signed message by clicking the button if it will work.

Tyrantt
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December 06, 2017, 10:37:17 AM
 #3





As you can see, it's on the bottom but there's no option to do anything besides editing a label.

Tyrantt
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December 06, 2017, 11:21:05 AM
 #4

As far I as know you can only be signed message on blockchain.info with your imported address. But as I tried to access my blockchain.info account and tried to find the signing message but it seems that they removed this feature now. But the verifying message is still there, dunno if what's the reason why they removed it without notifying their users.

EDIT: Okay I found it! Blockchain.info hide this feature. This might be complicated but working.
Must use a desktop/PC, Go to Settings > Addresses > Scroll Down > Choose the address you want to signed message, Click the "More Options" then Right click the "Spend" then click "Inspect Element"

You will see like this
Code:
<li>...</li>
<li>...</li>
<li>...</li>
<li>...</li>

Then click the 4th one, and you will see like this
Code:
<li><a translate="SIGN_MESSAGE" ng-hide="address.isWatchOnly" ng-click="signMessage()" class="ng-hide">Sign Message</a></li>
Then double click this "ng-hide" on the class and delete it, now click anywhere on the console and the "Sign Message" button will now appear on the dropdown. And you can try to signed message by clicking the button if it will work.




yeah, nice job. Would never think of going there. Tho, I can't click or rather it won't accept to sign the message when I press "sign". (screenshot below)



bL4nkcode
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December 06, 2017, 01:20:45 PM
 #5

As far I as know you can only be signed message on blockchain.info with your imported address. But as I tried to access my blockchain.info account and tried to find the signing message but it seems that they removed this feature now. But the verifying message is still there, dunno if what's the reason why they removed it without notifying their users.

EDIT: Okay I found it! Blockchain.info hide this feature. This might be complicated but working.
Must use a desktop/PC, Go to Settings > Addresses > Scroll Down > Choose the address you want to signed message, Click the "More Options" then Right click the "Spend" then click "Inspect Element"

You will see like this
Code:
<li>...</li>
<li>...</li>
<li>...</li>
<li>...</li>

Then click the 4th one, and you will see like this
Code:
<li><a translate="SIGN_MESSAGE" ng-hide="address.isWatchOnly" ng-click="signMessage()" class="ng-hide">Sign Message</a></li>
Then double click this "ng-hide" on the class and delete it, now click anywhere on the console and the "Sign Message" button will now appear on the dropdown. And you can try to signed message by clicking the button if it will work.




yeah, nice job. Would never think of going there. Tho, I can't click or rather it won't accept to sign the message when I press "sign". (screenshot below)




Ah okay it couldn't be helped, on that reason blockchain disabled this function on their backend already, you should use an alternatives for this if you want to make a signed message of your owned address. Electrum or mycelium will work for sure.

mobnepal
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December 06, 2017, 06:43:33 PM
 #6

Ok than only option you have is to import your whole blockchain.info wallet into electrum and sign message there.

https://bitcoinelectrum.com/restoring-your-standard-wallet-from-seed/  (guide of importing your blockchain.info backup seed in electrum with screenshots)
Don't forget to click the options button and tick the BIP39 Seed box.

You will find sign/verify message option on each of your addresses listed in that wallet. Good luck...

Zicadis
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December 06, 2017, 09:10:31 PM
 #7

Ok than only option you have is to import your whole blockchain.info wallet into electrum and sign message there.

https://bitcoinelectrum.com/restoring-your-standard-wallet-from-seed/  (guide of importing your blockchain.info backup seed in electrum with screenshots)
Don't forget to click the options button and tick the BIP39 Seed box.

You will find sign/verify message option on each of your addresses listed in that wallet. Good luck...
Considering OP just wants to sign a message, instead of  import exporting his current blockchain.info wallet to another wallet provider and I noticed you are able to sign from the 1DT2xxxxxxxxxx wallet just use the private key instead to make things much easier.

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