How to sign a message?! - page 5. | Bitcointalksearch.org

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Quote from: Neolan on December 06, 2020, 03:04:13 AM

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":

Quote from: shorena on March 14, 2015, 07:30:18 PM

If you want to get your address witnessed somewhere for the future, use this thread by Tomatocage -> https://bitcointalksearch.org/topic/stake-your-bitcoin-address-here-996318

Quote from: Neolan on December 06, 2020, 03:19:32 AM

~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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-----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---

Neolan

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Hello guys after getting my sign in code where I submit my post? Please tell me I am new here 😭

pooya87

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Quote from: DAlbert.fll on March 05, 2020, 12:27:25 PM

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.

DAlbert.fll

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Quote from: shorena on April 03, 2015, 07:12:16 AM

Quote from: Webnet on April 03, 2015, 06:40:53 AM

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...

nc50lc

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Quote from: didierp on February 24, 2020, 12:23:10 AM

"Sign a message from the Bitcoin address in the profile or an address you deposited from requesting the email change". https://bitcointalksearch.org/topic/how-to-sign-a-message-990345

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 [email protected]" to that "purple-marked" address.
Of course, if it's a "custodial wallet", you wont be able to do that.

didierp

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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://bitcointalksearch.org/topic/how-to-sign-a-message-990345

It says deposit address

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This thread really deserves to be pinned.

nc50lc

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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

didierp

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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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Quote from: AdolfinWolf on January 30, 2020, 07:39:09 AM

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://bitcointalksearch.org/topic/how-to-add-a-bitcoin-address-to-electrum-difference-sweep-and-import-priv-key-5096376

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.

Quote from: Insanerman on January 30, 2020, 08:03:21 AM

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.

Quote from: nc50lc on January 30, 2020, 10:40:17 PM

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.

nc50lc

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Quote from: minairia3 on January 30, 2020, 07:23:40 AM

Regarding Mycelium app? There are three types of bitcoin address, if the one we imported the private key on some third party app, which wallet address would shown up? For example on imToken version 2.0 they already supported bitcoin. Cause three address on mycelium have different types right and only contain 1 private keys/back up seed. So which wallet address will pop up to the platform?

See the "Export account keys" in the 'accounts tab' menu when you click any of your account?
Those three master keys (select 'private') denotes the three types of addresses of that account, namely:
xpub/xprv for legacy '1' address, ypub/yprv for nested SegWit '3' address and zpub/zprv for Native SegWit 'bc1' address.

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.

Insanerman

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Quote from: minairia3 on January 30, 2020, 07:23:40 AM

Regarding Mycelium app? There are three types of bitcoin address, if the one we imported the private key on some third party app, which wallet address would shown up? For example on imToken version 2.0 they already supported bitcoin. Cause three address on mycelium have different types right and only contain 1 private keys/back up seed. So which wallet address will pop up to the platform?

Are you referring to importing your private key that is generated in Mycelium to a different type of wallet? As far as I know, this is possible since you can have the same private key in both bitcoin wallet as long as it supports the "Import Private Key" feature.

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.

AdolfinWolf

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Quote from: minairia3 on January 30, 2020, 07:23:40 AM

Regarding Mycelium app? There are three types of bitcoin address, if the one we imported the private key on some third party app, which wallet address would shown up? For example on imToken version 2.0 they already supported bitcoin. Cause three address on mycelium have different types right and only contain 1 private keys/back up seed. So which wallet address will pop up to the platform?

I think this question is unrelated to the thread you’re posting it in, but this all depends on the wallet software.

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...

On Electrum for example, you can choose between legacy/nested/bc1, with a single private key. Where, if you don’t want to use the legacy format, you either choose p2sh-p2swh, which will generate the adress for nested segwit, or p2wpkh, which will generate a native segwit adress (bc1)

There’s a good (extensive) guide here actually: https://bitcointalksearch.org/topic/how-to-add-a-bitcoin-address-to-electrum-difference-sweep-and-import-priv-key-5096376

minairia3

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Regarding Mycelium app? There are three types of bitcoin address, if the one we imported the private key on some third party app, which wallet address would shown up? For example on imToken version 2.0 they already supported bitcoin. Cause three address on mycelium have different types right and only contain 1 private keys/back up seed. So which wallet address will pop up to the platform?

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Quote from: ElMoninho on January 29, 2020, 07:02:41 AM

<...>

Posting on this thread does not initiate account recoveries. You need to follow the protocol established here: Recovering hacked/lost accounts.

There does not seem to be a prior post on the forum with a signed address from the above address you provide (nor a prior reference to it), and being a freebit thingy I figure you cant, so it may well deem difficult recovering the account.

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I am Jo Noah and my freebitco.in deposit address is: 14Uyyx4xXKJXG4BEE29w1oJasbZq39Ea71
i was hacked and need my account back.

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Quote from: mehdi6049875073 on January 25, 2020, 02:56:33 PM

hi , for all , who help me to sign a massege and reset my account email to [email protected] I send him 0.01 BTC.

Quote from: mehdi6049875073 on January 25, 2020, 02:45:50 PM

hi , when i want to sign massege from blockchain .com This error occur (The signature does not match the message.) please help me .

lets solve it here , it may help someone else later

i had some problems few days before , due long inactivity.

i made a thread in order to address them.
the link points exactly to my result of signing a blockchain.com wallet's address :

Quote from: eli113 on January 24, 2020, 12:52:41 AM

Code:

Address: 1BNmMbpCk1XzM4JXGC189jpnYPPEcxQxN7
Message: FOUND IT at 24-jan-2020 06:45 my time
Signature: H+Ll0rPy91+1uitkXwwbQfK5QOZPeWcbZa9GQ0FVL7J1QJAIo8t4fDbmpLdqN20kbMybZ3fK/WC+1n0FJSlmxDA=

we will wait someone reading our thread to verify this signature of mine.
after that i will recreate what i have done and post it here for you and all of us.

/----UPDATE---/ a recent post may help to not repeat our-selfs

Quote from: Saint-loup on October 01, 2019, 01:42:11 PM

Quote from: Renampun on October 01, 2019, 01:19:10 PM

does anyone know "how to sign a message!! on the latest Blockchain.info (now Blockchain.com)??
looks like I missed the Post!!

Yes you must import your private key first.

Quote

This feature is currently only available for your Imported Addresses, but will be implemented for all addresses in the future. To sign a message, go to Settings > Addresses, and scroll down. Choose which address you want to sign, and click More Options > Sign Message.

A small window will display allowing you to provide a unique message or signature that identifies you as the owner.

https://support.blockchain.com/hc/en-us/articles/210353833-What-is-message-signing-and-how-can-I-do-that-

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Quote from: mehdi6049875073 on January 25, 2020, 02:56:33 PM

hi , for all , who help me to sign a massege ~snip~ 0.01 BTC.

You should remove your email address you will probably be spammed left right and center, and just ask them to PM you. Very generous tip for the assistance I'm sure they will appreciate it.

mehdi6049875073

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hi , for all , who help me to sign a massege and reset my account email to [email protected] I send him 0.01 BTC.

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