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Author Topic: How to sign a message?!  (Read 139561 times)
Roman_P
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January 25, 2018, 07:11:33 PM
 #641

-----BEGIN BITCOIN SIGNED MESSAGE-----
this is Roman_P from bitcointalk.org and today is  2018.01.25
------BEGIN SIGNATURE------
18QQn1UkKxCHebubqCA9EbLQYUtDHuL7tD
H0pMkatMVtGwHfW65xibNc1apK4BK+/UsBayN4H4OHiiHnckI7C0DPBYr5vnhqojAcPXslUxPooI3Mfu9678ffA=
------END BITCOIN SIGNED MESSAGE--------
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January 25, 2018, 10:08:58 PM
Merited by Roman_P (1)
 #642

-----BEGIN BITCOIN SIGNED MESSAGE-----
This is g4vinshreds from bitcointalk.org and today is January 25th, 2018.
-----BEGIN SIGNATURE-----
IIh1Q6cbR5oJbozTqJm2B4B7mFETIeDoyjUKxDz6+pPnZBYj8opo1hp2r5mNS/ATvXi2Y+aJ1JlJqt5PO6CD4n4=
-----END BITCOIN SIGNED MESSAGE-----
You forgot to add Bitcoin address to your message, so it's not possible to verify it.

-----BEGIN BITCOIN SIGNED MESSAGE-----
this is Roman_P from bitcointalk.org and today is  2018.01.25
------BEGIN SIGNATURE------
18QQn1UkKxCHebubqCA9EbLQYUtDHuL7tD
H0pMkatMVtGwHfW65xibNc1apK4BK+/UsBayN4H4OHiiHnckI7C0DPBYr5vnhqojAcPXslUxPooI3Mfu9678ffA=
------END BITCOIN SIGNED MESSAGE--------
Quoted and verified Wink
http://coinig.com/?adr=18QQn1UkKxCHebubqCA9EbLQYUtDHuL7tD&msg=this+is+Roman_P+from+bitcointalk.org+and+today+is++2018.01.25&sig=H0pMkatMVtGwHfW65xibNc1apK4BK%2B%2FUsBayN4H4OHiiHnckI7C0DPBYr5vnhqojAcPXslUxPooI3Mfu9678ffA%3D




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NEEDHELP6
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January 28, 2018, 06:25:39 PM
 #643

I Have a Coinbass bitcoin address added to my account. Can i signed and verify my address some how?
shorena
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January 28, 2018, 08:56:58 PM
 #644

I Have a Coinbass bitcoin address added to my account. Can i signed and verify my address some how?

AFAIK you cant.

Im not really here, its just your imagination.
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January 29, 2018, 05:26:59 AM
 #645

I Have a Coinbass bitcoin address added to my account. Can i signed and verify my address some how?

AFAIK you cant.
Sir, i have a ether address i have posted and added to my account. can i signed with it?


Edited: https://bitcointalk.org/index.php?topic=2192440.msg22624638#msg22624638
MKH
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February 07, 2018, 04:47:37 PM
 #646

How can I sign a message in the new blockchain?It seems I can't find a sign button there,I've only seen the verify one.It's not in the manage options.
By blockchain I assume you are referring to blockchain.info

To sign a message, go to the "Settings" tab on left, Click on "Addresses", Click on "More Options" in front of your required address, Choose "Sign Message" .

Does the new version allow signing messages? My last info is only the old wallet version does.
Yes it does allow signing.
I don't use blockchain.info much, but the steps above do work for latest version too ! I checked yesterday only.
It's here :
You may update the OP  Smiley

I import address and click on more options but its don't showing sign Message. It's showing Archive, Transfer, Spend.
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February 07, 2018, 05:56:32 PM
 #647

-----BEGIN BITCOIN SIGNED MESSAGE-----
Hi I'm MKH. I'm Signing This Message As a Test Message. and today is  2018.02.07
------BEGIN SIGNATURE------
14xE7pNigaxGdH2WmCp5NA3PnpvDWTXbWx
Hw0w5BhNb9E5uN1PIR/quKEXqxcjeVtwpCkziE0D3UVuUliVwfXUy+3uUdxEa88cfUfK7dPNLkj8gIjNgTRkDlQ=
------END BITCOIN SIGNED MESSAGE--------
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February 08, 2018, 01:23:38 PM
 #648

-snip-

As you was told in the other topic, you made a mistake when copying the text, i found an extra space between "is" and "2018" but even removing it doesn't help. Try to verify the message then post it again.

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February 10, 2018, 04:58:34 PM
 #649

-snip-

As you was told in the other topic, you made a mistake when copying the text, i found an extra space between "is" and "2018" but even removing it doesn't help. Try to verify the message then post it again.

Yes sir i Corrected This one. can you verify this one now.



Code:
-----BEGIN BITCOIN SIGNED MESSAGE-----
Hi I'm MKH. I'm Signing This Message As a Test Message.
------BEGIN SIGNATURE------
14xE7pNigaxGdH2WmCp5NA3PnpvDWTXbWx
Hw0w5BhNb9E5uN1PIR/quKEXqxcjeVtwpCkziE0D3UVuUliVwfXUy+3uUdxEa88cfUfK7dPNLkj8gIjNgTRkDlQ=
------END BITCOIN SIGNED MESSAGE--------
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February 10, 2018, 06:24:29 PM
Merited by shorena (1)
 #650

-snip-

As you was told in the other topic, you made a mistake when copying the text, i found an extra space between "is" and "2018" but even removing it doesn't help. Try to verify the message then post it again.

Yes sir i Corrected This one. can you verify this one now.



Code:
-----BEGIN BITCOIN SIGNED MESSAGE-----
Hi I'm MKH. I'm Signing This Message As a Test Message.
------BEGIN SIGNATURE------
14xE7pNigaxGdH2WmCp5NA3PnpvDWTXbWx
Hw0w5BhNb9E5uN1PIR/quKEXqxcjeVtwpCkziE0D3UVuUliVwfXUy+3uUdxEa88cfUfK7dPNLkj8gIjNgTRkDlQ=
------END BITCOIN SIGNED MESSAGE--------

Ok done . You only need to verify it once with the same Bitcoin address Smiley

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pandukelana2712
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February 16, 2018, 04:42:55 PM
Last edit: February 28, 2018, 04:31:52 PM by pandukelana2712
Merited by JeremyB (1)
 #651

~snip~

I import address and click on more options but its don't showing sign Message. It's showing Archive, Transfer, Spend.
Based my thread in my local sub https://bitcointalk.org/index.php?topic=2946861.0, I'll make this thread more completly with this, especially how to make sign messages bitcoin address at blockchain.info wallet


Question : If there is already a thread about that, why did you created this thread man? Are you wanted to spam or something?! Go away!
Answer : No dear, certainly I'm not. I did this because Shorena still didn't give detail a tutorial on how to sign a message with new version blockchain wallet.
Lucky me, I've already tried it and it was successfully verified!
Hi, please verify my address

Code:
----BITCOIN ADRESS ----
1N41sxCmuHe2uWVmL29aJc5KkkCVAVZ5AK
-----BEGIN BITCOIN SIGNED MESSAGE-----
Today is 13.02.2018 bitcointalk account pandukelana2712 (u=1304130) belongs to this address
-----BEGIN SIGNATURE-----
H+sS1GVZ0zmbcLq+qjRr6QIeMXWaTUFl2BfzOObkzEQqa0E6MCGFeGBNzNadoKBL7Ag2XKSYxBrXUBVtfFfKdQg=
-----END BITCOIN SIGNED MESSAGE-----

Thanks.

Quoted and verified!

Step 1
Login to your blokchain wallet just as usual blockchain.info.
Make and copy your private key to notepad. Follow cissrawk tutorial on https://bitcointalk.org/index.php?topic=2107937

Step 2
After you got your private key, go to blockchain.info
choose menu ==> setting


Step 3
Choose address sub menu


Step 4
Click Import Bitcoin Address button


Step 5
Fill it with your private key, then click import


Step 6
After you've done succesfully don that, then your address will be shown just like in number (5), choose more option


Step 7
Choose sign message


Step 8
Make sure your adress and your message match with your account on bitcointalk, make sure to include the date when you sign it too


Step 9
If you've successfully done it, you will see something like this



EDIT:
For some reason, I'm not suggest you to use blockchain.info as your main wallet.
This is just tutorial, how to make signature message at b.info wallet.


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February 22, 2018, 12:02:08 PM
 #652

Anyone know if I can sign Bitpay or Copay address? I have the private keys but I wonder if it is possible to sign these wallets. THANKS
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February 23, 2018, 01:32:15 AM
 #653

Anyone know if I can sign Bitpay or Copay address? I have the private keys but I wonder if it is possible to sign these wallets. THANKS
If it starts with a "3"... then the answer is no. You can ONLY sign from addresses that start with a "1".

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February 23, 2018, 06:20:24 AM
 #654

It starts with "1" but there is absolutely nothing to lead me to signing. I have managed to get the private keys though.
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February 23, 2018, 04:36:58 PM
 #655

If it starts with a "1" and you have the private keys you can definitely sign a message using that address... it is probably just that Bitpay and CoPay don't provide the functionality within their wallets.

You would need to use another wallet like Electrum (https://electrum.org/#download) and import your private key and use the inbuilt tool for signing messages... Apparently b.info also offers this for imported keys, but I don't like b.info Tongue

Or you'd need to use an external tool like "brainwalletx" (http://brainwalletx.github.io/#sign)... NOTE: I DON'T vouch for the safety of using "brainwalletx" and I certainly wouldn't use their website to input a private key... At the very least you should create an "offline copy" of it (download .ZIP and run locally while OFFLINE etc).

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February 23, 2018, 05:54:36 PM
 #656

If it starts with a "1" and you have the private keys you can definitely sign a message using that address... it is probably just that Bitpay and CoPay don't provide the functionality within their wallets.

You would need to use another wallet like Electrum (https://electrum.org/#download) and import your private key and use the inbuilt tool for signing messages... Apparently b.info also offers this for imported keys, but I don't like b.info Tongue

Or you'd need to use an external tool like "brainwalletx" (http://brainwalletx.github.io/#sign)... NOTE: I DON'T vouch for the safety of using "brainwalletx" and I certainly wouldn't use their website to input a private key... At the very least you should create an "offline copy" of it (download .ZIP and run locally while OFFLINE etc).

Importing private keys to latest version of electrum is safe tho but i wouldn't recommend doing the same for brainwalletx nor for B.info even if it is proven to be safe for the last one.
Avoid online sites when you are dealing with sensitive informations.

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February 26, 2018, 08:39:40 PM
 #657

Code:
-----BEGIN BITCOIN SIGNED MESSAGE-----
Hi I am Rimon365.This is my message.Today is Fabruary 26, 2018.
------BEGIN SIGNATURE------
1PA6ohpFBB7n49DubLAynzrnMWqzoZmgAg
H4ASyjrVjA7Co3NO1KYeCENDHs5NRftec4bZOggEiIbsFi1lEYLR6B8jXS0Tt7ZbsCiVRZeKQbi+kK2Qm/SC5tA=
------END BITCOIN SIGNED MESSAGE--------

Please quote and verify this message.

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February 26, 2018, 10:48:10 PM
 #658

Code:
-----BEGIN BITCOIN SIGNED MESSAGE-----
Hi I am Rimon365.This is my message.Today is Fabruary 26, 2018.
------BEGIN SIGNATURE------
1PA6ohpFBB7n49DubLAynzrnMWqzoZmgAg
H4ASyjrVjA7Co3NO1KYeCENDHs5NRftec4bZOggEiIbsFi1lEYLR6B8jXS0Tt7ZbsCiVRZeKQbi+kK2Qm/SC5tA=
------END BITCOIN SIGNED MESSAGE--------

Please quote and verify this message.
Quoted and verified




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OFFICIAL
BETTING
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.PROVABLY FAIR..
......& SECURE......
.24/7 CUSTOMER.
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February 28, 2018, 12:29:42 PM
Merited by shorena (5), lulucrypto (1)
 #659

shorena thanks for your helpful post!
I translated it in French here: https://bitcointalk.org/index.php?topic=3022163.new#new, if you want to add the link in the translations.

I've added 3 sections you could be interested to add in the OP:
- Sign with a Ledger Nano S
- Sign with a Trezor
- BrainWallet BitCore signature verification
- Trezor signature verification





Ledger Wallet Bitcoin v.1.10.1
return toindex

Link to picture -> https://i.imgur.com/2h22aN6.png



Verified here.
Note: Ledger Wallet Bitcoin can't be used to verify a signature.


Trezor Wallet
return toindex

Link to picture -> https://i.imgur.com/mvg884g.png



Signature verified with Trezor here




(Bitcoin-QT) Correct Signature


Link to picture -> https://i.imgur.com/hlkBkji.png

(Bitcoin-QT) Incorrect Signature


Link to picture -> https://i.imgur.com/VEqKAeE.png

(Bitcoin-QT) Correct Signature & Missing address


Link to picture -> https://i.imgur.com/LefpKPC.png



Trezor
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Correct Signature

Link to picture -> https://i.imgur.com/XgICUy7.png


Incorrect Signature

Link to picture -> https://i.imgur.com/Y3LIVPT.png




shorena
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No I dont escrow anymore.


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March 02, 2018, 07:22:23 PM
 #660

Added a sentence to the chapter "Pay to script hash (P2SH) addresses":

With the addition of P2SH-P2WPKH addresses (SegWit, but starting with a 3) this did not change. At least it did not in bitcoin core, other wallets may still allow signing or verification.

Im not really here, its just your imagination.
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