Recover founds old multisig coinbase wallet

[BitMaxz]

Are you saying you have fund in coinbase multi-sig vault and you are able to withdraw your fund from that just with entering the 2FA code and email verification? How is that possible? As already said, they no longer supports multi-sig vault.
I feel you are confusing coinbase mutli-signature wallet with their custodial wallet.

No there is no email verification but only an approval link but it asks for 2FA, I'm using their vault and I usually use it to save a few sat before it always requires approval in my Coinbase account I can approve the withdrawal from the vault but it is still pending and it needs a 2nd approval by a co-signer/secondary email I receive an email from Coinbase(as a secondary email) and the email asks for my secondary approval by clicking the approve button the vault funds will be out within 24hours and will transfer to the main wallet.

Please check the video I provided above that is how I withdraw funds out from the vault.

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[hosseinimr93]

Please check the video I provided above that is how I withdraw funds out from the vault.

That's coinbase vault, not coinbase multisig vault.

Coinbase vault (which is used by you) is a custodial service and coinbase has full control over the fund. There is no real co-signer in coinbase vault. When you approve the withdrawal through your email address, you only tell coinbase that the withdrawal request has been made by the real owner and it's not that you are the co-singer.

Coinbase multi-sig vault (which is no longer supported and we are talking about that in this thread) was a 2 of 3 multi-signature wallet in which the user had access to two of the keys and had full control over the fund.


From Coinbase help:

Note that the multisig vault is different from the regular Coinbase vault, where we handle security on your behalf so you don't have to. If you don't want to maintain your own private keys, you can use the regular vault

[o_e_l_e_o]

Hey OP, I've helped a couple of users in the past in the exact same situation as you. The issue is that the Coinbase recovery tool uses a now-defunct API, so it cannot access the balance on your addresses and then won't progress to letting you try to sign transactions.

There are a couple of options available to you. The most straight forward one is here: https://github.com/dlajarretie/multisig-tool
This is a direct fork of the Coinbase tool with the defunct API replaced with a working one.
Here's a user who successfully used this tool: https://bitcointalk.org/index.php?topic=5436171.msg61722006#msg61722006

If you are struggling to get this tool to run, then this thread might be of help to you: https://bitcointalk.org/index.php?topic=5444779.msg61907765#msg61907765

[Langostas]

Hey OP, I've helped a couple of users in the past in the exact same situation as you. The issue is that the Coinbase recovery tool uses a now-defunct API, so it cannot access the balance on your addresses and then won't progress to letting you try to sign transactions.

There are a couple of options available to you. The most straight forward one is here: https://github.com/dlajarretie/multisig-tool
This is a direct fork of the Coinbase tool with the defunct API replaced with a working one.
Here's a user who successfully used this tool: https://bitcointalk.org/index.php?topic=5436171.msg61722006#msg61722006

If you are struggling to get this tool to run, then this thread might be of help to you: https://bitcointalk.org/index.php?topic=5444779.msg61907765#msg61907765

Hello o_e_l_e_o  !!


This information its really very good for me, but.... Its very dificult for me to use the tool, I tried to do step by step all the processus to putted in the link on bitcointalk but... its not possible for me because... I dont know how to put linux on my computer...  I think this is for advanced users and I only a home user.... there is a way more easy to use this tool with the good API also i dont speak english so its not easy for me on this way...


Really thank you very much to all peaople to are replying me.... I hope I will find this money one day....


Have a good day!!!

[Langostas]

Hey OP, I've helped a couple of users in the past in the exact same situation as you. The issue is that the Coinbase recovery tool uses a now-defunct API, so it cannot access the balance on your addresses and then won't progress to letting you try to sign transactions.

There are a couple of options available to you. The most straight forward one is here: https://github.com/dlajarretie/multisig-tool
This is a direct fork of the Coinbase tool with the defunct API replaced with a working one.
Here's a user who successfully used this tool: https://bitcointalk.org/index.php?topic=5436171.msg61722006#msg61722006

If you are struggling to get this tool to run, then this thread might be of help to you: https://bitcointalk.org/index.php?topic=5444779.msg61907765#msg61907765

Thank you for your help!

I saw this message from you in the post you sent me,





Have you at least managed to identify the addresses and balances you are trying to gain access to here? You mentioned to me in your PMs that you are not sure how much bitcoin is stored in this vault.

Since we are struggling to get this to work for you, if you like you could send me your three xpubs (not private keys) and I could at least look up the addresses and balance for you. The only thing you lose by doing so is privacy by account of me knowing the addresses - there is no way for me to steal your coins from only knowing your xpubs. At least then we would know if you are wasting all this time trying to recover a very small amount of money. If you like I can provide you with my PGP key so you can encrypt any communication.

And moving forward, since we can't seem to get this tool working for you, then we could instead try going down the path of manually extracting the necessary xprv from your two keys and then recreating the multi-sig wallet in Electrum.






There are some posibilities about me for that?   Im agree if a need to share with you my xpub, I have only this 10 euros, (now 800) in the bitcoin and Im not a advanced user only I would like to close this chapitre for me... because Im not relax, I have also the final adresse where there are the bitcoin


Thank you again!!!

Have a good day.

[o_e_l_e_o]

I dont know how to put linux on my computer...

I'm afraid I rarely use Windows so I don't know how you would get this tool running on Windows. You could perhaps try running Windows System for Linux. Alternatively, run a VM or grab an old laptop or something you can install Linux on.

There are some posibilities about me for that?

If you simply want to check how much bitcoin is in your wallet, then you can PM me your xpubs and I can look up the relevant addresses for you using the tool on my end. As long as you don't send any of the seeds or passwords, then there is no chance of me being able to steal your coins and the only risk is in revealing to me how much bitcoin you own.

[NotATether]

I dont know how to put linux on my computer...

I'm afraid I rarely use Windows so I don't know how you would get this tool running on Windows. You could perhaps try running Windows System for Linux. Alternatively, run a VM or grab an old laptop or something you can install Linux on.

It should definitely work on Windows System for Linux, all you have to do is download a Linux distro from the Store (or whatever it's called now) like Ubuntu or something and it will install itself, then you can open a terminal and start working.

On Windows 10 this feature actually has to be enabled manually, from Apps and Features, but Windows 11 should have it already enabled.

[o_e_l_e_o]

OP has PMed me his three xpubs, which I have entered in to the tool locally and discovered an address containing coins which fits exactly with the story he has given in his first post.

The next steps will be for him to decide. Either we can help him try to set up the tool locally (preferred option!), or if that fails and if OP chooses then I would be willing for him to send me his seeds and password and I can sign and broadcast a transaction sending the coins from this address to another address of his choosing. Obviously any sensitive data being sent will need to be encrypted first, which will pose another challenge.

I'm posting this here in the interests of transparency.

[Langostas]

OP has PMed me his three xpubs, which I have entered in to the tool locally and discovered an address containing coins which fits exactly with the story he has given in his first post.

The next steps will be for him to decide. Either we can help him try to set up the tool locally (preferred option!), or if that fails and if OP chooses then I would be willing for him to send me his seeds and password and I can sign and broadcast a transaction sending the coins from this address to another address of his choosing. Obviously any sensitive data being sent will need to be encrypted first, which will pose another challenge.

I'm posting this here in the interests of transparency.

Hello again o_e_l_e_o

I dont have any word to say thanks to you!!!

I dont have a very good level in computer.... I preferred the second option, but I undestand that means I need to have a lot a lot of confiance in you. and to be honest, from few years ago im very sad about this situation, because I havce some money but I cant recover it!

for give you one adress, like my normal adresss in Coinbase to receive any bitcoin is good ? its starting by number 1 if I remember good.

1J7sNfSwSa4d4Fc5sd9Fgc5SVUizYH3hbV


Im at your disposal, thank you

edit to put a picture from my coinbase exchange, with my bitcoin adress ( I think so)


https://postimg.cc/30j3zT7q

[LoyceV]

I would be willing for him to send me his seeds and password and I can sign and broadcast a transaction sending the coins from this address to another address of his choosing.

If you do this, will you post a full HOWTO? It's ridiculous Coinbase killed this service, but it would be nice for future reference, even many years from now.

Obviously any sensitive data being sent will need to be encrypted first, which will pose another challenge.

I've used this for seed phrases for my Fork claiming service:

Don't send private keys from a standard email that doesn't encrypt messages.
The easiest way to send private keys (or seed words, depending on your wallet) is if you create a Protonmail account.
~
This way, the email has end-to-end encryption and should be secure. There's of course always the risk of your (or my) computer being compromised.
Alternatively, you can send half of each private key to my Protonmail email, and the other half by Bitcointalk PM. This way the parts don't end up on the same email account.

I've edited out my own email address, obviously both parties need to use Protonmail for the email to be encrypted.

[BabyBandit]

Hey OP. I hope you will get your bitcoin "back" ASAP and this thread make me glad to see people come along and trying to help out. 🙏
But I just wanted to tell you that you should be aware of scammers/imposters here. I am glad to see people trying to help you and this people only want to help you, but be careful for people trying to be them in PM or Telegram.

I mean for example:  o_e_l_e_o would for sure not scam you and he/she only want's to help you, but be careful maybe someone trying to pretend to be o_e_l_e_o for later steal your funds.


- Regards BabyB. 👼

[o_e_l_e_o]

for give you one adress, like my normal adresss in Coinbase to receive any bitcoin is good ? its starting by number 1 if I remember good

Yes, I could send the coins to that address.

If you do this, will you post a full HOWTO? It's ridiculous Coinbase killed this service, but it would be nice for future reference, even many years from now.

Certainly, but it's really as simple as cloning the repo at https://github.com/dlajarretie/multisig-tool, installing the necessary dependencies, and then following the instructions given. You can check the changes that fork has made compared to the Coinbase master, and see all it does is replace the defunct API and nothing malicious.

I've used this for seed phrases for my Fork claiming service:

I can do this if OP is happy with this, but I would prefer to use PGP encryption since I can decrypt the message on my airgapped device. The hot wallet which runs on the internet connected device I would use for this has never been hacked, but obviously the risk still exists.

-snip-

Good advice, and this is why I moved the conversation back here after OP PMed me - so everything is in the open and to minimize any risk of scam accusations from either side.

[LoyceV]

I would prefer to use PGP encryption since I can decrypt the message on my airgapped device.

Good point, that is more secure.

everything is in the open and to minimize any risk of scam accusations from either side.

That's a fake sense of security. I realized the same when offering my Fork claiming service: if either one of the parties moves the funds, it's impossible for the other party to prove anything. So it really comes down to trust.

[DaveF]

That's a fake sense of security. I realized the same when offering my Fork claiming service: if either one of the parties moves the funds, it's impossible for the other party to prove anything. So it really comes down to trust.

Yes, and the blowback if something goes wrong could be big.
Even if it's nobody's 'fault'
Nobody thinks you are going to cut and run over such a small amount, but I would think it would be better if one of us sooner or later puts up a webpage with that tool and let people do it themselves.

-Dave

[BabyBandit]

Haven't heard anything from here in a while. Just checking in from curiosity if anyone knows how the situation ended up? I hope OP did get access to his coins already.

Thanks in advance.
 - Regards BabyB. 👼

[o_e_l_e_o]

OP never messaged me again after sharing his xpubs with me, as I described above. The address I identified does not show any new activity and his coins are still there. I'm still happy to assist if desired.

[Langostas]

Good morning people!

I'm here!

I dont use my computer very often, Im a hand worker so im not very good with technologies

The situation is the same as I told here, I d'ont know how can I recover this founds... and for my life hapynnes its not very good for me to know  that I have some euros and Im not able to take it for me so sometimes I prefer to forget... is like that im doing from few years now.... im not proud of this situation...

I understud that if I give to you all my password (i have all the information) you will send me back all  but all people in this forum will able to take the bitcoin... and you know im  a fair person but sometimes did not work for me to be a fair person, so what can we do ? for your information, I only know how to put on a computer and how put off, I dont have facebook or something like that.

Also, im not english spoken so... This is my english and when I try to read some english on the net to find some informations its not easy for me...


Thank you a lot to asking for the situation!!!  Im open to find a solution of course... this is the only "net coin" I have in internet and the last time I bouth something that I dont know how is working really...

Kiss family!!

[LoyceV]

I understud that if I give to you all my password

DO NOT do that! If you post your wallet data anywhere in public, your funds will most likely get stolen.

User o_e_l_e_o offered to help you. If you want his help, and if the amount is low enough for you to risk it and trust him, you should send him a PM. Or use a more secure method of communication, like Protonmail (this adds encryption without requiring technical knowledge).

[o_e_l_e_o]

It seems to be that using PGP here is going to be too complicated.

Given that, I would opt for Loyce's suggestion of using ProtonMail for its end-to-end encryption. You can make an account for free, and I will supply you with my email address to send the keys to.

If you don't want to trust me then I can try to talk you through setting up and running this tool locally, but you've already said you would not feel comfortable installing and using Linux.

[Langostas]

I understud that if I give to you all my password

DO NOT do that! If you post your wallet data anywhere in public, your funds will most likely get stolen.

User o_e_l_e_o offered to help you. If you want his help, and if the amount is low enough for you to risk it and trust him, you should send him a PM. Or use a more secure method of communication, like Protonmail (this adds encryption without requiring technical knowledge).

Hello LoyceV

I understood the "public place situation" thank you, protonmail I dont know what is it.


Thanks for your answer!