coinb.in transaction is not working

[zenchi8]

So I can not withdraw the btc from it.

After broadcasting it: it gives:
18 txn: mempool-conflict

I can't seem to figure out what it means or how to solve it.

Could anyone help please with withdrawing coins from coinb.in?

It's a multisig wallet. So maybe I can't withdraw to one BTC address (then why is the option there?).
Maybe I should use a multisig method. But how?

Hopefully somebody can help.

I can also not import the wallet to electrum. When I insert the keys it just doesn't work.

And a seed is also not anything because I just imported a seed in monero and now Ive got the same wallet, with some history but not my latest balance. Which was quite a lot. It's balance is zero now.
And also with the monero client importing the keys does not work. Or I am doing something wrong.

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[LoyceV]

It's a multisig wallet. So maybe I can't withdraw to one BTC address (then why is the option there?).
Maybe I should use a multisig method. But how?

Does this help?

[zenchi8]

It's a multisig wallet. So maybe I can't withdraw to one BTC address (then why is the option there?).
Maybe I should use a multisig method. But how?

Does this help?

download both bitaddress.org-3.3.0 and coinbin-1.3 if you haven't
Quote from: Thirdspace on December 20, 2017, 04:05:28 PM
two things you need to download:
1. https://github.com/pointbiz/bitaddress.org/archive/v3.3.0.zip official bct thread https://bitcointalk.org/index.php?topic=43496.0
2. https://github.com/OutCast3k/coinbin/archive/1.3.zip official bct thread https://bitcointalk.org/index.php?topic=390046.0
download them, unzip and for safety measure you should open them in your incognito mode browser while offline

I already have the bitcoin address, privkeys etc.
What do I need bitadress.org-3-3-0 for?


Preparations:
- open this post so you can follow the step by step instruction easily
- GO OFFLINE, disconnect your internet connection
- open folder bitaddress.org-3.3.0 then click & drag bitaddress.org.html to new tab on your private browser
- open folder coinbin-1.3 then click & drag index.html to another new tab on your private browser
- open notepad to save some data needed for later use

First, acquiring your 1st privkey:
- switch to your bitaddress tab, you can move around your mouse to get to 100 % or just click "Wallet Details"
- enter your Mini Private Key in the space provided and click "View Details"
- match the 'public address' given to you, if it is a 'Bitcoin Address' copy paste uncompressed (5xx) 'Private Key WIF' to notepad
- if it is a 'Bitcoin Address (compressed)' copy paste compressed (Kxxx or Lxxx) 'Private Key WIF' to notepad

Second, acquiring Redeem Script:
- still on the bitaddress tab, find its 'Public Key (130 characters [0-9A-F])' and copy its long string
- switch to your coinb tab, then click menu New > MultiSig Address
- paste the copied 'Public Key' into the first input form, and paste your Second Factor Public Key into the second input form
- click '-' sign next to third input form to remove it, make sure '2' is the number for "amount of signatures required"
- click submit and you will see your "Public MultiSig Address" and its "Redeem Script"
- copy paste both "Public MultiSig Address" and its Redeem Script to notepad and save

at this point, you can close all tabs, browser and notepad, then reboot your computer (to clear all memory)
or just continue the next step

Third, composing Transaction:
- GO ONLINE, on your coinb tab click menu New > Transaction
- copy the "Redeem Script" from your notepad into the first input form then click "Load" to retrieve UTXO from your "MultiSig Address"
- move down a bit and click on 'Outputs (0.00000000)' and fill the destination address and the amount
- make sure you adjust the amount so that the 'Transaction Fee' is high enough for the tx to get confirmed
- if you want to send/donate me some Grin you can click the '+' sign to add another row for another output/destination address I will send you my address via PM
- click submit and you will see the unsigned hex rawtx as the result
- copy this rawtx before proceeding to next step

Fourth, signing and verifying Transaction:
- GO OFFLINE, click menu "Sign" then paste the copied rawtx into the second input form
- enter your 1st private key (from your saved notepad) into first input form then click submit
- copy the resulted 'Signed transaction' in the green box, and paste into the second input form
- enter your 2nd private key (from your Second Factor Public Key) into first input form then click submit

This is missing at coinb.in

- copy the resulted 'Signed transaction' in the green box,
- click on menu "Verify" and paste your 'Signed transaction' in the input space provided then click submit
- make sure all inputs for your transactions are checkmarked on the signed column

Fifth, broadcast:
- close all incognito browser but don't forget to save the last 'Signed transaction' on your notepad and save
- reboot your computer if necessary for the same reason as earlier
- GO ONLINE, re-connect your internet and re-open your local coinb.in index.html or just go to live coinb.in page
- click on menu "Broadcast" and paste your 'Signed transaction' here then click submit

And then I get the 18 tnx error

[zenchi8]

Now I can insert my private key into an electrum wallet and of course it shows 0 btc because it is not the multisig wallet

[zenchi8]

The multisig wallet required xpub or something private keys, which coind.in does not supply
So I can't import this wallet into Electrum

[HCP]

18 txn: mempool-conflict

This error indicates that one or more of the UTXOs that you are attempting to spend in your transaction has already been used in a transaction that was already broadcast.

In other words, your transaction is being rejected as an attempted "double spend".

[Thirdspace]

The multisig wallet required xpub or something private keys, which coind.in does not supply
So I can't import this wallet into Electrum

coinb.in supports creating/signing transaction with multisig address
first, you need Redeem Script to retrieve utxo from multisig address
then at signing you need to do it twice (if 2 of 3) consecutively with each privkey

unsigned rawtx + privkey1 = partially-signed rawtx
partially-signed rawtx + privkey2 = multi-signed rawtx

but HCP has explained, mempool-conflict = attempted "double spend"
@OP if you are still in doubt, check your multisig address balance on any explorer
or tell us the address, so we can check and give advice on the matter

[zenchi8]

18 txn: mempool-conflict

This error indicates that one or more of the UTXOs that you are attempting to spend in your transaction has already been used in a transaction that was already broadcast.

In other words, your transaction is being rejected as an attempted "double spend".

That's what I was afraid of.
The problem with coinb.in is that you can not copy paste every transaction in the outputs part.
Because maybe one of those has already been spend and I need to press minus next to that?
But how can I find out which one that is?

The multisig wallet required xpub or something private keys, which coind.in does not supply
So I can't import this wallet into Electrum

coinb.in supports creating/signing transaction with multisig address
first, you need Redeem Script to retrieve utxo from multisig address
then at signing you need to do it twice (if 2 of 3) consecutively with each privkey

unsigned rawtx + privkey1 = partially-signed rawtx
partially-signed rawtx + privkey2 = multi-signed rawtx

but HCP has explained, mempool-conflict = attempted "double spend"
@OP if you are still in doubt, check your multisig address balance on any explorer
or tell us the address, so we can check and give advice on the matter

I have the redeem script. Then I have 3 private addresses of which one is the same (for the Legacy one instead of the Segwit one).
One of those addresses is AES. I don't have any more private addresses than that.

So I can only do this:
unsigned rawtx + privkey1 = partially-signed rawtx
I need to do this 2-3 times? Why? That doesn't change anything does it?
I will check my multisig address and let you know.

[zenchi8]

The blockchain tells me the exact balance that coinb.in also gives in output...

What does that mean? That there wasn't a double spending? or...?

[zenchi8]

I should also include a mining fee since it automatically puts it on 0.
How high should it be for 0.0079892 btc? I tried everything. Up till it gave me a warning that the fee was really high.
(I tried to spend 0.004btc) So unfortunately including random fees also doesn't work.

[LoyceV]

How high should it be for 0.0079892 btc? I tried everything. Up till it gave me a warning that the fee was really high.
(I tried to spend 0.004btc) So unfortunately including random fees also doesn't work.

If you're not in a rush, 1 satoshi/byte is enough. The total size will depend on the number of inputs, but I think a 0.00002BTC is a safe guess to set as fee.
Last time I used Coinb.in, you needed to manually allocate all funds. If not, the remainder will be used as a very high fee. So try to send 0.0079692 out of your 0.0079892 to your own normal wallet.

[zenchi8]

It's still not working

And in the above tutorial. Aren't you forgetting to verify first and then sign?
I get an error otherwise that there is something wrong with my input or something. "There is a problem with one or more of your inputs, please check and try again"

Right now all the site does is freeze In 2 different browsers.

[zenchi8]

Pfff this is so annoying.

Maybe I should create 2 multisig addresses, then (co)sign it.
But I can't even begin imagining how I would do that.

Maybe somebody here knows how to get coins out of coinb.in with this method?

[zenchi8]

Ok, this has been solved:
By changing at Broadcast: Broadcast to chain.so

Man the solution was so easy lol.

I had a double spend error with Monero.
I still have the seed, which I can import. But after doing so, I get a new wallet for some reason.

I also have the private keys, but when I try opening my wallet through that way it can not continue opening it.
Anybody knows where I can get good help for that? Because this is not the place of course. Maybe there is a monerotalk.org?
I'll look it up.

Thanks for trying to help guys.

[HCP]

I had a double spend error with Monero.
I still have the seed, which I can import. But after doing so, I get a new wallet for some reason.

I'm still not sure why you keep mentioning Monero?

Monero is a completely different cryptocurrency that uses a completely different blockchain and network to Bitcoin... you cannot just use a Bitcoin seed in a Monero wallet and expect to see your bitcoin addresses and/or bitcoins.

Additionally, coinb.in is for Bitcoin, Dogecoin and Litecoin only... as far as I'm aware it does not support working with Monero.

[RGBKey]

Ok, this has been solved:
By changing at Broadcast: Broadcast to chain.so

Man the solution was so easy lol.

I had a double spend error with Monero.
I still have the seed, which I can import. But after doing so, I get a new wallet for some reason.

I also have the private keys, but when I try opening my wallet through that way it can not continue opening it.
Anybody knows where I can get good help for that? Because this is not the place of course. Maybe there is a monerotalk.org?
I'll look it up.

Thanks for trying to help guys.

iirc not all nodes will accept it, because of the double spend. It depends on how long the previous tx remains in their mempool.

[andreykandau]

having similar problem with coinb.in.

i want to redeem some funds from a multisig address, so i created a new transaction from the redeem script, added the output, generated the raw transaction, picked it and paste in the sign section, signed with the first private key, then it generate a signed transaction arround 190 bytes, but when i try to sign with the second private key the result is the same as the previous, a 190 exactly same output from the first signing... am i doing anything wrong? or is there a problem with coinb.in? could someone help?

[HCP]

Are you 100% sure that it is 100% identical to the output from the first signing? The difference is usually fairly subtle.

If they are indeed 100% identical, it might be a caching issue inside the browser tab. That is to say, it is caching the original transaction/private key and just outputting that result when you attempt to sign it.

I would suggest that you try opening another tab for coinb.in and then copy/paste the partially signed transaction into the new tab, then try and sign it with the 2nd key in that new tab.

[Thirdspace]

... picked it and paste in the sign section, signed with the first private key, then it generate a signed transaction arround 190 bytes, but when i try to sign with the second private key the result is the same as the previous, a 190 exactly same output from the first signing...

did you copy paste the output of first signing as the input for the second signing?
if the size stays the same usually it means wrong private key or resigning over the same rawtx