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Author Topic: How to sign a message?!  (Read 139563 times)
tinytrader
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December 09, 2017, 06:49:29 PM
 #621

-----BEGIN BITCOIN SIGNED MESSAGE-----
This is tinytrader from bitcointalk.org and today is 2017.10.12
Current time is 12:48 AM (GMT+6)
-----BEGIN SIGNATURE-----
1Ktw2SdejWZxhszRdrYgqpxU6YEwAvZ6du
H+4Oe8biVNjyRfyDtQF+XcFxkWI3hyMVx3vXJRTA0ZMSSuAbjq0VhZa0JHi2IxGnnS5Sa0tRm/VcMSz33FOx0cg=
-----END BITCOIN SIGNED MESSAGE-----
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S_Natural
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December 09, 2017, 09:02:29 PM
 #622

Quick question... is a signed message required for each tx, Or can a single signature be valid for example 2 weeks?

Your signature just proves you are the owner of your wallet.

-----BEGIN BITCOIN SIGNED MESSAGE-----
This is tinytrader from bitcointalk.org and today is 2017.10.12
Current time is 12:48 AM (GMT+6)
-----BEGIN SIGNATURE-----
1Ktw2SdejWZxhszRdrYgqpxU6YEwAvZ6du
H+4Oe8biVNjyRfyDtQF+XcFxkWI3hyMVx3vXJRTA0ZMSSuAbjq0VhZa0JHi2IxGnnS5Sa0tRm/VcMSz33FOx0cg=
-----END BITCOIN SIGNED MESSAGE-----


Message verified to be from 1Ktw2SdejWZxhszRdrYgqpxU6YEwAvZ6du  Wink

[Z]
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December 10, 2017, 12:26:34 PM
 #623

Quick question... is a signed message required for each tx, Or can a single signature be valid for example 2 weeks?

Your signature just proves you are the owner of your wallet.

I think this is important and I really need to do this. Thanks for let me know something like this.
I just read the first post on this thread and still learning step by step.
Anybody know, is there any case related to this prevention tips which can prove that an address belong to me. I mean is there any cases that successfully recovered from hacking since he did this sign a message? Then if any, how about the balance inside that wallet? Is it safe or this just will prove the wallet owner so far and can not prevent from its balance robbery? (sorry, this is very newbie question, I understand it)
shairblogger
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December 10, 2017, 03:42:04 PM
 #624

Can you tell me how and where can i verify the bitcoin sign message any tool or website?
apoorvlathey
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December 10, 2017, 04:24:14 PM
 #625

Can you tell me how and where can i verify the bitcoin sign message any tool or website?


You can use your bitcoin wallets like electrum or bitcoin core to verify the signatures.
Although, the faster alternatives would be to use online tools like https://tools.bitcoin.com/verify-message/ or http://www.coinig.com/

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December 10, 2017, 07:17:25 PM
 #626

Quick question... is a signed message required for each tx, Or can a single signature be valid for example 2 weeks?

Your signature just proves you are the owner of your wallet.

-----BEGIN BITCOIN SIGNED MESSAGE-----
This is tinytrader from bitcointalk.org and today is 2017.10.12
Current time is 12:48 AM (GMT+6)
-----BEGIN SIGNATURE-----
1Ktw2SdejWZxhszRdrYgqpxU6YEwAvZ6du
H+4Oe8biVNjyRfyDtQF+XcFxkWI3hyMVx3vXJRTA0ZMSSuAbjq0VhZa0JHi2IxGnnS5Sa0tRm/VcMSz33FOx0cg=
-----END BITCOIN SIGNED MESSAGE-----


Message verified to be from 1Ktw2SdejWZxhszRdrYgqpxU6YEwAvZ6du  Wink

Thanks for the info~
S_Natural
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December 11, 2017, 08:57:57 AM
 #627

Quick question... is a signed message required for each tx, Or can a single signature be valid for example 2 weeks?

Your signature just proves you are the owner of your wallet.

I think this is important and I really need to do this. Thanks for let me know something like this.
I just read the first post on this thread and still learning step by step.
Anybody know, is there any case related to this prevention tips which can prove that an address belong to me. I mean is there any cases that successfully recovered from hacking since he did this sign a message? Then if any, how about the balance inside that wallet? Is it safe or this just will prove the wallet owner so far and can not prevent from its balance robbery? (sorry, this is very newbie question, I understand it)

The signature can not prevent you from hacker. If you lose your private key, you should create a new wallet.

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December 24, 2017, 06:38:23 PM
 #628

Blockchain.info wallet still not implemented sign message feature to the main addresses. Only for imported addresses. But you can not back up imported addresses so if something goes wrong you are unable to recover from seed.

jamelyn
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January 03, 2018, 02:06:04 PM
 #629

-----BEGIN BITCOIN SIGNED MESSAGE-----
this is jamelyn from bitcointalk.org and today is  2018.01.03
or as some of you might write it 03.01.18 or wednesday 3rd january 2018
-----BEGIN SIGNATURE-----
1Dxqt4gQL4ETD52hMnse7McsdXH4R8v6jR
INfPIhDMOmJ6sUwXpIaPcChQGzBRIUhkafK32i/ghhR3YTJeNUQo8fJNqQR2+Jl7N78/46GWM0rZ2ga7rmarDoQ=
-----END BITCOIN SIGNED MESSAGE-----
S_Natural
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January 03, 2018, 02:15:27 PM
 #630

-----BEGIN BITCOIN SIGNED MESSAGE-----
this is jamelyn from bitcointalk.org and today is  2018.01.03
or as some of you might write it 03.01.18 or wednesday 3rd january 2018
-----BEGIN SIGNATURE-----
1Dxqt4gQL4ETD52hMnse7McsdXH4R8v6jR
INfPIhDMOmJ6sUwXpIaPcChQGzBRIUhkafK32i/ghhR3YTJeNUQo8fJNqQR2+Jl7N78/46GWM0rZ2ga7rmarDoQ=
-----END BITCOIN SIGNED MESSAGE-----

Message failed to verify! Check again man  Wink

jamelyn
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January 03, 2018, 02:20:05 PM
 #631

-----BEGIN BITCOIN SIGNED MESSAGE-----
this is jamelyn from bitcointalk.org and today is  2018.01.03
or as some of you might write it 03.01.18 or wednesday 3rd january 2018
-----BEGIN SIGNATURE-----
1Dxqt4gQL4ETD52hMnse7McsdXH4R8v6jR
INfPIhDMOmJ6sUwXpIaPcChQGzBRIUhkafK32i/ghhR3YTJeNUQo8fJNqQR2+Jl7N78/46GWM0rZ2ga7rmarDoQ=
-----END BITCOIN SIGNED MESSAGE-----

Message failed to verify! Check again man  Wink

how to correct my message?
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January 04, 2018, 01:37:09 AM
 #632

how to correct my message?
Impossible to know... just be very careful with copy/pasting the text etc... one extra space or line break will "break" the signature and it won't verify...

What service did you use for creating the signature?

Tuanken897
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January 04, 2018, 04:02:59 AM
 #633

I use BLOCKCHAIN.info wallet. And I searched alots of informations to find out how to sign a message with my blockchain wallet.
Only people have private key can sign a message.
Backup 12 phrases and get private key in gifthup then import to blockchain.info again. And you can sign a message...
darkphoenix2610
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January 08, 2018, 07:22:13 AM
 #634

-----BEGIN BITCOIN SIGNED MESSAGE-----
i'm darkphoenix2610 member of bitcointalk.org and today is 01.04.2018
-----BEGIN BITCOIN SIGNATURE-----
Version: Bitcoin-qt (1.0)
Address: 1HdiCQn7ZEG8ZtWkmmWVkXpVQPstC98jxe

H5rAcv6vyYz+NUYs7/Wy0GPgZIIEJgPnYcJh7syw5j0OYIIDvCJPZKtX7A17heHmZjQESZef5ZOkvNaZs40CBJs=
-----END BITCOIN SIGNATURE-----
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January 08, 2018, 08:06:01 AM
 #635

-----BEGIN BITCOIN SIGNED MESSAGE-----
i'm darkphoenix2610 member of bitcointalk.org and today is 01.04.2018
-----BEGIN BITCOIN SIGNATURE-----
Version: Bitcoin-qt (1.0)
Address: 1HdiCQn7ZEG8ZtWkmmWVkXpVQPstC98jxe

H5rAcv6vyYz+NUYs7/Wy0GPgZIIEJgPnYcJh7syw5j0OYIIDvCJPZKtX7A17heHmZjQESZef5ZOkvNaZs40CBJs=
-----END BITCOIN SIGNATURE-----

Quoted for future reference and Verified using http://brainwalletx.github.io/#verify?vrAddr=1HdiCQn7ZEG8ZtWkmmWVkXpVQPstC98jxe&vrMsg=i'm%20darkphoenix2610%20member%20of%20bitcointalk.org%20and%20today%20is%2001.04.2018&vrSig=H5rAcv6vyYz%2BNUYs7%2FWy0GPgZIIEJgPnYcJh7syw5j0OYIIDvCJPZKtX7A17heHmZjQESZef5ZOkvNaZs40CBJs%3D

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Press Section Police Department!
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January 09, 2018, 07:21:37 PM
 #636

I think I need to read this one in a bigger screen, I try to read this with my phone then  after 3minutes my head starts to spin....hahaha
But Thank you for this thread.. .

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January 10, 2018, 05:51:23 PM
 #637

It's too long to read.... Hehe
I mean you can just make this a video then post the link here...
But thank you for the idea.... And info.....
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January 16, 2018, 05:29:32 PM
 #638

Things would have been quite easy.  I want to know how do we verify a message using Electrum.I use coinig but don't really like it ,there is an option in Electrum to verify but not sure how to use it.I already tried copy pasting addresses and messages in the respective boxes but does not work
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January 16, 2018, 05:39:19 PM
 #639

Things would have been quite easy.  I want to know how do we verify a message using Electrum.I use coinig but don't really like it ,there is an option in Electrum to verify but not sure how to use it.I already tried copy pasting addresses and messages in the respective boxes but does not work

That should work. It's nothing other then copy pasting all of them in the right boxes. It's exactly the same as signing a transaction, but instead, you already have a signature and you click on verify, instead of sign.

Example:

Code:
MESSAGE: I, AdolfinWolf, verify the ownership of adress 18E7dAsGnakzD5aqtpiYPzFjGHXHBrTg7M


Adress: 18E7dAsGnakzD5aqtpiYPzFjGHXHBrTg7M

SIGNATURE: H2G9q2Mn38+mZ2PTVuvVfgQ+ANjsi2HR+xMSgDvOGa48HOyFQpimpF3oGbtOn0BoRNocGj9xomfgiEjCuLF9TNk=



https://i.gyazo.com/04b2953a8451adca9543fd7a2f42c738.png

g4vinshreds
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January 25, 2018, 05:33:24 PM
 #640

-----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-----

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