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Author Topic: How to sign a message?!  (Read 104785 times)
LTU_btc
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August 27, 2017, 07:00:22 PM
 #541

Did Coinbase removed function to sign a message or I can't find it? Link to Coinbase article about signing message on this tutorial doesn't exist anymore

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crazylikeafox
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August 27, 2017, 08:45:38 PM
 #542

Did Coinbase removed function to sign a message or I can't find it? Link to Coinbase article about signing message on this tutorial doesn't exist anymore

Yes, I think so cos even blockchain.info it doesnt give any option sign a message from the new addresses glad i still have the old ones.

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Jesscaoo
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August 28, 2017, 02:49:14 AM
 #543

 I am so happy you guys take out the time and write such detailed information. It helps us understand so much. Shout out to all people who take out the time to help others!
jaocoincrypto18
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August 28, 2017, 03:42:11 AM
 #544


Gratitude of sharing this very specific details good thing that this topic of yours will not be deleted ( i pray so) because it will guide us all beginners here
on how to create signed message someday i believe.

Crypto-Billy
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August 28, 2017, 05:56:19 PM
 #545

Wow, very interesting and educative thread. Thank you very much. The whole cryptocurrency thing is quite another world, especially for a newbie like me,lol
Still got so much to learn.
Larsin
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September 01, 2017, 03:57:05 PM
 #546

Are there online wallets with signature messages?

S_Natural
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September 05, 2017, 05:18:51 PM
 #547

-----BEGIN BITCOIN SIGNED MESSAGE-----
S_Natural bitcointalk 2017/09/05
-----BEGIN SIGNATURE-----
176rVybXv6T7X4RaY6iyBQt1MBwVrpTc5B
IHpDE3QbiOf05k+FVIutzeoVG2HeG6YRYT/rZSt3adgoAZdt8OUkfV7pG6MEcx/dwmn5jkmiy1ftjhjYtDigl+w=
-----END BITCOIN SIGNED MESSAGE-----
HCP
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September 06, 2017, 11:38:59 PM
 #548

-----BEGIN BITCOIN SIGNED MESSAGE-----
S_Natural bitcointalk 2017/09/05
-----BEGIN SIGNATURE-----
176rVybXv6T7X4RaY6iyBQt1MBwVrpTc5B
IHpDE3QbiOf05k+FVIutzeoVG2HeG6YRYT/rZSt3adgoAZdt8OUkfV7pG6MEcx/dwmn5jkmiy1ftjhjYtDigl+w=
-----END BITCOIN SIGNED MESSAGE-----

Verified OK! That all checks out Smiley

S_Natural
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September 07, 2017, 02:20:30 AM
 #549

-----BEGIN BITCOIN SIGNED MESSAGE-----
S_Natural bitcointalk 2017/09/05
-----BEGIN SIGNATURE-----
176rVybXv6T7X4RaY6iyBQt1MBwVrpTc5B
IHpDE3QbiOf05k+FVIutzeoVG2HeG6YRYT/rZSt3adgoAZdt8OUkfV7pG6MEcx/dwmn5jkmiy1ftjhjYtDigl+w=
-----END BITCOIN SIGNED MESSAGE-----

Verified OK! That all checks out Smiley

Thanks so much Smiley
crypt0xmancer
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September 07, 2017, 01:52:17 PM
 #550

finally a beginner's detailed guide for newbies, respect for people who help out!
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September 07, 2017, 10:18:53 PM
 #551

excuse me for my noobness questions, but what is the purpose of this sign message? why you have to do a sign message if there a few wallet has no feature for it?

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September 11, 2017, 08:21:25 PM
 #552

By signing a message, you can prove that you are the 'owner' of a certain wallet address. You can prove that you have the private key to a certain wallet address.

You make a message
Sign it with your private key
That results in a hash code
A third party can verify 100% whether that hash code is valid
Without having to know your private key

Does that answer your question?

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HCP
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September 19, 2017, 04:41:11 AM
 #553

would like to have this quoted and verified as i am the owner of this address
Sorry... this doesn't verify... Sad

I think you've not posted your message properly... it should be like this one, without all the <>'s:

-----BEGIN BITCOIN SIGNED MESSAGE-----
S_Natural bitcointalk 2017/09/05
-----BEGIN SIGNATURE-----
176rVybXv6T7X4RaY6iyBQt1MBwVrpTc5B
IHpDE3QbiOf05k+FVIutzeoVG2HeG6YRYT/rZSt3adgoAZdt8OUkfV7pG6MEcx/dwmn5jkmiy1ftjhjYtDigl+w=
-----END BITCOIN SIGNED MESSAGE-----

muvie
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September 19, 2017, 06:50:53 PM
 #554

You can do that with Trezor or Electrum wallet for example. You only need a message to sign.

You can verify a signature with this online tool: https://tools.bitcoin.com/verify-message/
savemalekbaba
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September 26, 2017, 02:38:41 AM
 #555

I use poloniex address. I have slow internet and really not a tech type guy. Is it possible to sign a message using exchange BTC address? I have no control on private key, right? So, is it possible to sign a btc message ?
bhantom
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October 02, 2017, 05:11:27 PM
 #556

I use poloniex address. I have slow internet and really not a tech type guy. Is it possible to sign a message using exchange BTC address? I have no control on private key, right? So, is it possible to sign a btc message ?

I have this same problem, my internet connection is really slow, i am so confused and i don't know what i must to do. Please help

LTU_btc
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October 02, 2017, 10:18:02 PM
 #557

I use poloniex address. I have slow internet and really not a tech type guy. Is it possible to sign a message using exchange BTC address? I have no control on private key, right? So, is it possible to sign a btc message ?
You can't sign a message from exchange btc address, because it's in control of excange and you don't own this address.
If you have slow internet and you don't want to download any software, you can easily sign message from Blockchain.info wallet address, just follow tutorial.

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October 03, 2017, 01:10:02 AM
 #558

I use poloniex address. I have slow internet and really not a tech type guy. Is it possible to sign a message using exchange BTC address? I have no control on private key, right? So, is it possible to sign a btc message ?
You can't sign a message from exchange btc address, because it's in control of excange and you don't own this address.
If you have slow internet and you don't want to download any software, you can easily sign message from Blockchain.info wallet address, just follow tutorial.
thank you for information Blockchain.info always update GUI , i can't see this function sign message .

cryptme
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October 06, 2017, 12:09:24 PM
 #559

-----BEGIN BITCOIN SIGNED MESSAGE-----
This is cryptme, bitcointalk.org user 843342
I sign this message to recover my account in case is compromised.
Today is the 6-th of october 2017 15:02 GMT+2
-----BEGIN SIGNATURE-----
1MYiHNHjyNrdSHaZoRLn2Na7bjh86de5ir
H/9rdGtjzDGeMBmQJFjzT9OzSTcuXtAREsyRQuEGQ160JbTzazUou7JX4xiz6oBIMrMdJy0icUjiQPyRgDnVFXU=
-----END BITCOIN SIGNED MESSAGE-----

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October 06, 2017, 03:10:33 PM
 #560

-----BEGIN BITCOIN SIGNED MESSAGE-----
This is cryptme, bitcointalk.org user 843342
I sign this message to recover my account in case is compromised.
Today is the 6-th of october 2017 15:02 GMT+2
-----BEGIN SIGNATURE-----
1MYiHNHjyNrdSHaZoRLn2Na7bjh86de5ir
H/9rdGtjzDGeMBmQJFjzT9OzSTcuXtAREsyRQuEGQ160JbTzazUou7JX4xiz6oBIMrMdJy0icUjiQPyRgDnVFXU=
-----END BITCOIN SIGNED MESSAGE-----


Message verified to be from 1MYiHNHjyNrdSHaZoRLn2Na7bjh86de5ir  Wink
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