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Author Topic: How to sign a message?!  (Read 139551 times)
minairia3
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January 31, 2020, 03:09:41 AM
 #801


I’m not familiar with the platform you named, but if it supports legacy addresses (scripts), an address with 1... will show up. If it supports nested segwit addresses (P2SH-P2WSH) the address will start with 3... and if it supports native segwit addresses, it will start with bc1...

There’s a good (extensive) guide here actually: https://bitcointalk.org/index.php?topic=5096376.0

Thanks I now get what the address type and which one is supported by it. Sorry if this unrelated, I just asking this cause I am indeed first time to use the mycelium app cause I was just impress with the tutorial made by OP. Anyway sorry again for the unrelated question about it.


I do not use imToken so I downloaded it in Playstore. I think imToken does not support private keys generated by other non-custodial wallet even if it has an "Import Priv Key" function since they are using a multichain wallet that is linked to the basic information you provided in their platform.

You are also posting in an unrelated thread. Try creating your own in this section.

I think can work cause version 2 also has a btc wallet supported it just asking the seed phrase and you just need only to back ut up. Thanks. Again sorry for asking this.


If you use the seed phrase to export, you need to follow the "derivation path" shown in the 'balance tab' when you enable "Show address path" in the settings.
Derivation path looks like this: m/44'/0'/0'/0/0 (displayed below the address type written in green) you can remove the last zero during import.

I see I think its automatic on imToken to recognize the format itself but will try it. Thanks for this.

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didierp
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February 23, 2020, 03:37:48 AM
 #802

Hi,

On the Freebitcoin page I needed to change the email associated with that account and mistakenly typed the email in a wrong way, write to support and they answered me saying that the deposit bitcoin address for that account should sign a message, the problem is that I don't have the private key because when I create this account they isolate the default bitcoin address. Who can help me solve this, since if I don't have the private key I can't sign the message or how can I get the private key from the Freebitcoin page.

Thank you.
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February 23, 2020, 03:57:42 AM
Last edit: February 23, 2020, 05:04:20 AM by nc50lc
 #803

No, there's no other way to create a signed message without the address' private key.

But your did they really said fbc's deposit address?
Because that address is in their control, you must have meant default "withdrawal address"?

If that's the case, which wallet does your withdrawal address displayed in "More->Profile->Change Withdrawal Address" belongs?

Next time, create your own thread even if you have a somehow related question Wink

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February 23, 2020, 08:09:32 PM
 #804

This thread really deserves to be pinned.


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February 24, 2020, 04:23:10 AM
 #805

Sorry, but how is it related to signing a message with the bitcoin address so ask here. The message they sent me from freebitcoin is this:

"Sign a message from the Bitcoin address in the profile or an address you deposited from requesting the email change". https://bitcointalk.org/index.php?topic=990345.0

It says deposit address
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February 24, 2020, 04:54:09 AM
Merited by DdmrDdmr (1)
 #806

"Sign a message from the Bitcoin address in the profile or an address you deposited from requesting the email change". https://bitcointalk.org/index.php?topic=990345.0

It says deposit address
It said: "deposited from", means the address that you've used to deposit.
Moreover, it also said "in your profile" as the main option, which is the default receiving address used during registration or the user added afterwards.

Example (for deposited from): When you sent bitcoins to any of your deposit address, you can sign a message to any of the listed inputs.
Paste your previously used deposit address to https://www.blockchain.com/explorer?view=btc_blocks, and you'll see something like this:


Use the wallet that you've used to send that transaction and sign a message containing "I want to change my email into blahblah@emailprovider.com" to that "purple-marked" address.
Of course, if it's a "custodial wallet", you wont be able to do that.

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March 05, 2020, 04:27:25 PM
 #807

is there a way to sign a message from an address without running bitcoinqt

As you can see I currently cover Bitcoin Core version v0.10.0, Electrum v 1.9.8, MultiBit v 0.5.18 and Blockchain.info. Coinbase (linked to guide earlier), armory and the new versions of Multibit (HD)[1] and Electrum (2.0.X) as well as plenty other wallets also support signing as well as verification of messages. If you have a specific wallet, just tell me which and I will add it to the todo list.

New additions will probably[2] follow within the next days, if you use a wallet that is still missing, please suggest it. I dont see a reason to focus on wallets like armory as the chance that someone using armory knows how to sign a message is high. I think its more important to focus on wallets that are used by many people and that are typically considered beginners friendly.

[1] still in beta
[2] unless something unforseen happens

first: im albert, and want to give you thanks for your topic, its pretty useful, i was ignore this thing about signmessage even when i have more than 6 years around bitcoin world...
second: btw aboit that signmessage, there a way to sign an adress from a site as  for example: frebitco. in there are a way to do it? (its the default adress that it give to me when it register in that site...
so please help me i need to do ot for change my email adress in that site...
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March 06, 2020, 05:37:02 AM
 #808

second: btw aboit that signmessage, there a way to sign an adress from a site as  for example: frebitco. in there are a way to do it? (its the default adress that it give to me when it register in that site...
so please help me i need to do ot for change my email adress in that site...

you sign a message using your private key. this means when you open an account somewhere and they give you a bitcoin address they own the private key to that address and you have no access to it which means you can not sign a message from that address.

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December 06, 2020, 07:04:13 AM
 #809

Hello guys after getting my sign in code where I submit my post? Please tell me I am new here 😭
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December 06, 2020, 07:19:32 AM
Last edit: December 06, 2020, 07:50:15 AM by Neolan
 #810

-----BEGIN BITCOIN SIGNED MESSAGE-----
This is Neolan From bitcointalk.org , Today  is December 06 2020 and this the test show signing message with Mycelium 3.7.0.5 Thanks to Gisado.
-----BEGIN SIGNATURE-----
17itzCLXBhGN9LhufrW4fTnbi5h15CHnhY
H2V3Qlk+hH3+kg/KuvT1T/QfWo4J/6wNVra/NXdWVu8ce9mRZ4TWJfDRCFWeJeP2s03uERMBdmoBW8PHoW5JWYs=
-----END BITCOIN SIGNED MESSAGE---
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December 06, 2020, 08:40:50 AM
 #811

Hello guys after getting my sign in code where I submit my post? Please tell me I am new here 😭
It was already given in the latter part of the "intro section":

If you want to get your address witnessed somewhere for the future, use this thread by Tomatocage -> https://bitcointalk.org/index.php?topic=996318.0

~Snipped~
I tried verifying it but it didn't and based on your "other post" that contained a different message with the same signature, I'm guessing that's the issue [that part is unique for each signed message].

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December 12, 2020, 01:58:31 PM
 #812

-----BEGIN BITCOIN SIGNED MESSAGE-----
i had to go back to this topic five times before i finally learned how to sign  a message and here im doing it and today is 12/12/2020
-----BEGIN SIGNATURE-----
bc1qms2nn2yyjnrs7a4gdnggmme4t2fd3nem4q8ejx

ICPMBuY/ixaGNkZhB47G3cHpZAeGZkUspp2kcUcTH4ZHeaPqznPN2Dknq3WEj57+5X+wZQTXG1jsjNBVvJjl/FY=
-----END BITCOIN SIGNED MESSAGE-----
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December 12, 2020, 02:06:46 PM
 #813

-----BEGIN BITCOIN SIGNED MESSAGE-----
i had to go back to this topic five times before i finally learned how to sign  a message and here im doing it and today is 12/12/2020
-----BEGIN SIGNATURE-----
bc1qms2nn2yyjnrs7a4gdnggmme4t2fd3nem4q8ejx

ICPMBuY/ixaGNkZhB47G3cHpZAeGZkUspp2kcUcTH4ZHeaPqznPN2Dknq3WEj57+5X+wZQTXG1jsjNBVvJjl/FY=
-----END BITCOIN SIGNED MESSAGE-----
Your message have to be signed by an app other than brainwallet, please make another post in this topic https://bitcointalk.org/index.php?topic=996318.0 (see SFR10 post above)


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December 12, 2020, 07:01:19 PM
 #814

-----BEGIN BITCOIN SIGNED MESSAGE-----
i had to go back to this topic five times before i finally learned how to sign  a message and here im doing it and today is 12/12/2020
-----BEGIN SIGNATURE-----
bc1qms2nn2yyjnrs7a4gdnggmme4t2fd3nem4q8ejx

ICPMBuY/ixaGNkZhB47G3cHpZAeGZkUspp2kcUcTH4ZHeaPqznPN2Dknq3WEj57+5X+wZQTXG1jsjNBVvJjl/FY=
-----END BITCOIN SIGNED MESSAGE-----
Quoted and verified using Electrum.


Although it isn't required, I would also recommend that you stake your address by posting your signed message over in the Stake your bitcoin address here thread as indicated by snipie.

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February 12, 2021, 05:00:00 PM
 #815

Good afternoon, I have a serious problem, I cannot enter my account with the email adrianpugliese933@gmail.com, that email no longer exists, they ask me for a series of addresses that I do not remember, I need to access my account, I had referrals, could help me please.
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February 13, 2021, 03:42:24 AM
 #816

Good afternoon, I have a serious problem, I cannot enter my account with the email adrianpugliese933@gmail.com, that email no longer exists, they ask me for a series of addresses that I do not remember, I need to access my account, I had referrals, could help me please.
Is it about an exchange or online wallet?
If you need more assistance than their CS can provide, you should start a "new topic" (link at the upper-right of the boards) in the beginners board (link) or Service Discussion (link) if it's a custodial service.
Then provide the necessary info like the name of the exchange, what happened and the current situation.

People wont suddenly have the idea of what's happening, please be more comprehensive on your posts.

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February 15, 2021, 03:56:29 PM
 #817

Sign, Verify. Easy, multicoin, client-side.

Contact me in TOX: 653D6C2D13B6DF22C4CB93432586398858A608EE5457624A9A728BE1A9252C5DA12B894C54DB, or just crypto-trader@toxme.io. Also, WAVES - SCAM! ;(
Starkie
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February 17, 2021, 05:39:52 PM
 #818

I need to sign a message on my Coinbase wallet. Can anyone help me? I need it to recover an account that was stolen from me.
Thank you
HCP
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February 17, 2021, 07:49:23 PM
 #819

I need to sign a message on my Coinbase wallet. Can anyone help me? I need it to recover an account that was stolen from me.
Are you talking about the Coinbase "Exchange" wallet or the actual separate Coinbase wallet application? Huh

If it's the exchange, you're likely out of luck. They don't provide access to private keys as it is a custodial service, you have no private keys, it's all controlled by coinbase. However, if you're using the their Android/iOS wallet app, you should have the 12 word recovery phrase that can be used in external wallets (like Electrum)... so you can just import the 12 word recovery phrase into a wallet that supports signing messages.

10_sjdovn_10
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February 18, 2021, 10:47:15 AM
Merited by vapourminer (1)
 #820

Code:
-----BEGIN BITCOIN SIGNED MESSAGE-----
This is 10_sjdovn_10, test, thanks to shorena for this thread on bitcointalk.org, Feb-18-2021
-----BEGIN SIGNATURE-----
1JTaxjfdaRR6WLz3mMcMY9B39jX1k2QEwr
IFEwZMAm5qyCL5mZTd3zGUyFTwlXoCGcVzDYvaMoNS/Pan76/w9z4rEFOshp5kwY8V19EHF8ojM2/kkx64JC6ng=
-----END BITCOIN SIGNED MESSAGE-----


How these formats are designed , is this same as pgp or gpg ?
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