[coinb.in] Open Source, Multi Signature, HD Wallet, SegWit/Bech32 and more!

[OutCast3k]

OP deleted my post i don't know why he did this to may be prevent the truth Op you don't believe in open communication?
this wallet has some problems i signed tx offline using my private key and it said signed but showed the same unsigned tx in the box.weird.unisgned tx was of electrum wallet and it was RBF tx.I hope this time you reply me and don't delete this post.

Sorry it was an accidental delete and was in the process of messaging you about this. You can go through this thread and github and see I don't delete bad feedback.

In truth your complaint is about electrum, its is an issue that's been know about for a while, it likely won't be fixed because we handle data within the transaction in a slightly different way, although I am making presumptions here and will happily inspect your transactions to be sure. What I suggest is; instead of building a transaction using electrum and complaining that this software doesn't sign it properly, you try building and signing a transaction using only coinb.in.

Please keep us updated. Thanks.

*Edited to clarify*

I tried with coinb.in wallet first but the thing is your wallet does not allow to set custom fees.It stated what is not sent will be used as transaction fees and i had to set custom fees so i created an unsigned tx with electrum wallet RBF enabled and then wrote the unsigned hash in coinb.in offline wallet and used my private key to sign it and it stated signed but showed the same unsigned tx in box.why coinb.in wallet does not allow custom fees?

Hey there!

I think you should look again, of course coinb.in allows custom fees, it just appears you don't understand how fees work.

As you stated, what is not sent is used as a fee, this is how the Bitcoin protocol works, what is not spent is used as a transaction fee - it's simple. To avoid this, you create a second "change" address where you spend the change back to your own address, thus lowering fees.

For more information on fees and "change addresses"  please see https://en.bitcoin.it/wiki/Change and https://en.bitcoin.it/wiki/Transaction_fees

Please remember coinb.in is meant for advanced users who understand the bitcoin protocol and whilst I don't want to discourage you or anyone else from experimenting with this project and increasing your understanding, you should be extra careful as you clearly aren't fimilar with the protocol as you have shown by your lack of understanding and complaining.

All the best.

[Answerme2]

Hey there!

I think you should look again, of course coinb.in allows custom fees, it just appears you don't understand how fees work.

As you stated, what is not sent is used as a fee, this is how the Bitcoin protocol works, what is not spent is used as a transaction fee - it's simple. To avoid this, you create a second "change" address where you spend the change back to your own address, thus lowering fees.

For more information on fees and "change addresses"  please see https://en.bitcoin.it/wiki/Change and https://en.bitcoin.it/wiki/Transaction_fees

Please remember coinb.in is meant for advanced users who understand the bitcoin protocol and whilst I don't want to discourage you or anyone else from experimenting with this project and increasing your understanding, you should be extra careful as you clearly aren't fimilar with the protocol as you have shown by your lack of understanding and complaining.

All the best.

You are right and electrum wallet automatically add my address to the tx as change address and in coinb.in we need to do it manually now i understand.It would be great option to have this in coinbin wallet too so we don't have to manually enter the change address our own sending address should be set by default to change address but i understand you if it's meant for advanced users.

[OutCast3k]

Hey there!

I think you should look again, of course coinb.in allows custom fees, it just appears you don't understand how fees work.

As you stated, what is not sent is used as a fee, this is how the Bitcoin protocol works, what is not spent is used as a transaction fee - it's simple. To avoid this, you create a second "change" address where you spend the change back to your own address, thus lowering fees.

For more information on fees and "change addresses"  please see https://en.bitcoin.it/wiki/Change and https://en.bitcoin.it/wiki/Transaction_fees

Please remember coinb.in is meant for advanced users who understand the bitcoin protocol and whilst I don't want to discourage you or anyone else from experimenting with this project and increasing your understanding, you should be extra careful as you clearly aren't fimilar with the protocol as you have shown by your lack of understanding and complaining.

All the best.

You are right and electrum wallet automatically add my address to the tx as change address and in coinb.in we need to do it manually now i understand.It would be great option to have this in coinbin wallet too so we don't have to manually enter the change address our own sending address should be set by default to change address but i understand you if it's meant for advanced users.

Unfortunately it is not possible to easily predict the users change address with total accuracy in this wallet due to the way it's designed, the best method in this scenario is to let the user choose.

[100bitcoin]

Bitcoin Cash inserted (I'm not sure if it works)
https://github.com/globaltoken/coinbin/commit/88f5eee6ad9114feb70c523ca7c834d99c106476

EDIT:
https://github.com/OutCast3k/coinbin/pull/113

As much as I personally do not support the bitcoin cash hard fork, allowing users to dump it is probably a good thing.

I am reviewing and testing this pull request, but I am also aware that there are a few very minor issues in this pull request, which leaves me wondering if they should be fixed before or after.

Faster it is done, better it is.

[Pente]

I locked a bunch of Bitcoins before the fork to BTC and BCC. So was wondering if the coins would be recoverable on the BCC fork. So decided to experiment.

Created a time locked address using address: 12Cp73Mbb4PEXmDjYitGcfgPDpRRvPPxpS,
Public Key: 04882490aac1fb4de17bcd7c70c72672d291d3cbce869834dee98452a98874766ef996adec88b74 98dfb3fd3141fb3af5fa020746ceb8f11d5ee4e35d26284f7e4
Time: 09/13/2017 01:00

Resulting Address: 3BQyYQS3vSdjYHNJK8ogyo5Z3NkmzxWrr3
Resulting Redeem Script:
04b00fb959b1754104882490aac1fb4de17bcd7c70c72672d291d3cbce869834dee98452a988747 66ef996adec88b7498dfb3fd3141fb3af5fa020746ceb8f11d5ee4e35d26284f7e4ac

Sent 0.001 BCC to that address, TX=
76f21028ebdeff0c2347ae00ada70d3c32cfdf8a38178b2a032f2a030ce420e4

To create a tx, I had to manually input everything, resulting in the following script:
0100000001e420e40c032a2f032a8b17388adfcf323c0da7ad00ae47230cffdeeb2810f27600000 0004a04b00fb959b1754104882490aac1fb4de17bcd7c70c72672d291d3cbce869834dee98452a9 8874766ef996adec88b7498dfb3fd3141fb3af5fa020746ceb8f11d5ee4e35d26284f7e4ac00000 00001905f0100000000001976a9140b0f1dc4fce32f2d38bdbf822c2222d1870b999a88acb00fb9 59

Signed with private key to 12Cp73Mbb4PEXmDjYitGcfgPDpRRvPPxpS:

0100000001e420e40c032a2f032a8b17388adfcf323c0da7ad00ae47230cffdeeb2810f27600000 00094483045022100fa78e56b7ec881f8bb2eb97ea9825856ecd06941dea3ac74092d663b721379 8b02207824e621b4ee21df7591a1e8f45a45b162e5ea39cd073b70bcabc6501f7683e3014a04b00 fb959b1754104882490aac1fb4de17bcd7c70c72672d291d3cbce869834dee98452a98874766ef9 96adec88b7498dfb3fd3141fb3af5fa020746ceb8f11d5ee4e35d26284f7e4ac0000000001905f0 100000000001976a9140b0f1dc4fce32f2d38bdbf822c2222d1870b999a88acb00fb959

Tried to push at http://blockdozer.com/insight/tx/send

Resulting in the following:

An error occured:
64: non-mandatory-script-verify-flag (Signature must use SIGHASH_FORKID). Code:-26

[cookiebags]

Having some problem with this wallet. Two weeks ago deposited coions to my wallet then later logged in and there was nothing, new btc address and zero funds. Contacted support via email and no response, sent a message here to OutCast3k(one of the developers as I see) and no response. Is this project just a scam right now or what? Any chance to get my coins back?  

[OutCast3k]

Having some problem with this wallet. Two weeks ago deposited coions to my wallet then later logged in and there was nothing, new btc address and zero funds. Contacted support via email and no response, sent a message here to OutCast3k(one of the developers as I see) and no response. Is this project just a scam right now or what? Any chance to get my coins back?  

It's an open source project, nobody here has paid anything, we are not a company, if there is a delay in responding it's because we are not heavily funded and there is 1 developer responding to multiple enquiries.

Firstly, I will point out the obvious. We do not have access to your private keys. If for some unfortunate reason our API is struggling to return the correct balance you can import your API key into another wallet.

Secondly, you have provided no information to go on. No email address, no github ticket, no bitcoin address to check a balance.

Finally I don't like helping people who call this project a scam. It's rude, you've contributed nothing, paid nothing and have the audacity to post that.


Edit to add: coinb.in's wallet feature works by generating a set of keys from the login details you give it. Please pay close attention to the login notice in yellow. It states different login combinations will open up different addresses. For example, I could login with the email address outcast3k@bitcoin.com and the password 1111111111 and receive one address, log back out and log back in the with same email address but a different password 222222222 and get an entirely different address. If the address has changed and your balance is zero, it's because you are not entering in the same details as before. Please don't come here and publicly call this project a scam when you clearly have no idea.

[OutCast3k]

I locked a bunch of Bitcoins before the fork to BTC and BCC. So was wondering if the coins would be recoverable on the BCC fork. So decided to experiment.

Created a time locked address using address: 12Cp73Mbb4PEXmDjYitGcfgPDpRRvPPxpS,
Public Key: 04882490aac1fb4de17bcd7c70c72672d291d3cbce869834dee98452a98874766ef996adec88b74 98dfb3fd3141fb3af5fa020746ceb8f11d5ee4e35d26284f7e4
Time: 09/13/2017 01:00

Resulting Address: 3BQyYQS3vSdjYHNJK8ogyo5Z3NkmzxWrr3
Resulting Redeem Script:
04b00fb959b1754104882490aac1fb4de17bcd7c70c72672d291d3cbce869834dee98452a988747 66ef996adec88b7498dfb3fd3141fb3af5fa020746ceb8f11d5ee4e35d26284f7e4ac

Sent 0.001 BCC to that address, TX=
76f21028ebdeff0c2347ae00ada70d3c32cfdf8a38178b2a032f2a030ce420e4

To create a tx, I had to manually input everything, resulting in the following script:
0100000001e420e40c032a2f032a8b17388adfcf323c0da7ad00ae47230cffdeeb2810f27600000 0004a04b00fb959b1754104882490aac1fb4de17bcd7c70c72672d291d3cbce869834dee98452a9 8874766ef996adec88b7498dfb3fd3141fb3af5fa020746ceb8f11d5ee4e35d26284f7e4ac00000 00001905f0100000000001976a9140b0f1dc4fce32f2d38bdbf822c2222d1870b999a88acb00fb9 59

Signed with private key to 12Cp73Mbb4PEXmDjYitGcfgPDpRRvPPxpS:

0100000001e420e40c032a2f032a8b17388adfcf323c0da7ad00ae47230cffdeeb2810f27600000 00094483045022100fa78e56b7ec881f8bb2eb97ea9825856ecd06941dea3ac74092d663b721379 8b02207824e621b4ee21df7591a1e8f45a45b162e5ea39cd073b70bcabc6501f7683e3014a04b00 fb959b1754104882490aac1fb4de17bcd7c70c72672d291d3cbce869834dee98452a98874766ef9 96adec88b7498dfb3fd3141fb3af5fa020746ceb8f11d5ee4e35d26284f7e4ac0000000001905f0 100000000001976a9140b0f1dc4fce32f2d38bdbf822c2222d1870b999a88acb00fb959

Tried to push at http://blockdozer.com/insight/tx/send

Resulting in the following:

An error occured:
64: non-mandatory-script-verify-flag (Signature must use SIGHASH_FORKID). Code:-26

Bitcoin cash and bitcoin do not use the same sighashes as a method of replay protection. This means transactions built for the bitcoin network can't be broadcasted to the bcash network with out an update to the signing procedure.

There is a bitcoin cash pull request on the github repo, which I've not accepted but it does work (I choose to support segwit right now over bcash) You can download it and use it to create transactions for the bcash network.

[Pente]

Ok, I finally got HODL txs to work using your link to https://github.com/globaltoken/coinbin/commit/88f5eee6ad9114feb70c523ca7c834d99c106476

I had to change one line of code in coin.js though (line 1024 in my notebook editor after running https://dirtymarkup.com on it):

Code:

} else if (utxo_script['type'] == 'multisig') {

to this

Code:

} else if ( (utxo_script['type'] == 'multisig') || (utxo_script['type'] == 'hodl')) {

I also had to push the tx elsewhere as the broadcast function failed for me.

These are minor bugs compared to the next one though.

I decided to create a tx for a large amount of BCC. I set everything up. Then I went offline to get my private key to sign it and discovered I can't sign offline. So I canceled the tx, and did some experiments.

It seems that if I try to sign while offline, I get an error message due to our javascript trying to reload the inputs during the signing. Specifically in r.getinputvalues routine. It will sign fine if I then go back online though (changing nothing else).

I don't remember this being a problem when signing a Hodl tx with Bitcoin offline when I originally tested it.

This seems like a major security breach to me. I have gone over the code as much as I can and while I don't see the private key being stolen, I am not a professional programmer either (I panhandle for a living) so something could be hidden in an obscure area from me.

Unfortunately, I don't think this can be easily fixed without rewriting a lot of code. I know it would take me months. I will probably just sign the large transaction and immediately broadcast it. My coins are still locked up for another 3 years though. Plenty of time to think about it though.

I just hope they don't use replay protection again during the Seg1X|Seg2X fork. What a f*cking mess.

[OutCast3k]

Ok, I finally got HODL txs to work using your link to https://github.com/globaltoken/coinbin/commit/88f5eee6ad9114feb70c523ca7c834d99c106476

I had to change one line of code in coin.js though (line 1024 in my notebook editor after running https://dirtymarkup.com on it):

Code:

} else if (utxo_script['type'] == 'multisig') {

to this

Code:

} else if ( (utxo_script['type'] == 'multisig') || (utxo_script['type'] == 'hodl')) {

I also had to push the tx elsewhere as the broadcast function failed for me.

These are minor bugs compared to the next one though.

I decided to create a tx for a large amount of BCC. I set everything up. Then I went offline to get my private key to sign it and discovered I can't sign offline. So I canceled the tx, and did some experiments.

It seems that if I try to sign while offline, I get an error message due to our javascript trying to reload the inputs during the signing. Specifically in r.getinputvalues routine. It will sign fine if I then go back online though (changing nothing else).

I don't remember this being a problem when signing a Hodl tx with Bitcoin offline when I originally tested it.

This seems like a major security breach to me. I have gone over the code as much as I can and while I don't see the private key being stolen, I am not a professional programmer either (I panhandle for a living - make about $5/hour) so something could be hidden in an obscure area from me.

Unfortunately, I don't think this can be easily fixed without rewriting a lot of code. I know it would take me months. I will probably just sign the large transaction and immediately broadcast it. My coins are still locked up for another 3 years though. Plenty of time to think about it though.

I just hope they don't use replay protection again during the Seg1X|Seg2X fork. What a f*cking mess.

I'm going from memory here and I've not paid tooo much attention to bitcoin cash, but I believe their new routine to generate a transaction hash includes the value of each input where as the legacy version doesn't.

[TryNinja]

So, does that mean that we can't recover our BCH from time-locked addresses funded before the fork? I got one that will be available next saturday and I woudn't mind a few extra Bitcoins. Is there is any ETA?

[Pente]

So, does that mean that we can't recover our BCH from time-locked addresses funded before the fork? I got one that will be available next saturday and I woudn't mind a few extra Bitcoins. Is there is any ETA?

We can recover BCH, but apparently we will have to sign the transaction while online, so not 100% secure.

It would be possible to rewrite the code to allow offline signing, but I don't think anyone will be motivated enough to do that.

[akmittal]

Nice initiative, multi signature is really interesting. I am trying to use this also. But due to beginner I can not find bug. But other members given remarkable suggestions and reported bug. Hope perfection very soon.

[Thirdspace]

---snip---

As much as I personally do not support the bitcoin cash hard fork, allowing users to dump it is probably a good thing.

I am reviewing and testing this pull request, but I am also aware that there are a few very minor issues in this pull request, which leaves me wondering if they should be fixed before or after.

---snip---

Bitcoin cash and bitcoin do not use the same sighashes as a method of replay protection. This means transactions built for the bitcoin network can't be broadcasted to the bcash network with out an update to the signing procedure.

There is a bitcoin cash pull request on the github repo, which I've not accepted but it does work (I choose to support segwit right now over bcash) You can download it and use it to create transactions for the bcash network.

so I take it you will never going to merge that BCH pull request?
you were talking about pull #113 by dabura667, right?
which finally he forked to https://github.com/dabura667/coinbin/tree/bitcoincash

---snip---

We can recover BCH, but apparently we will have to sign the transaction while online, so not 100% secure.

It would be possible to rewrite the code to allow offline signing, but I don't think anyone will be motivated enough to do that.

what do you mean by "have to sign the transaction while online"
is this new procedure? I've never heard signing tx must be online connected to any network

[Pente]

I have set up clone that works with Bitcoin Cash P2SH at http://www.motelmaya.com/BCC/BCC.html

I have used it to redeem several small Bitcoin Cash HODL txs:

https://blockchair.com/bitcoin-cash/transaction/8410ec11c603a02748b0257273b48e7005cc6cb20b8b7efa742d0606f711244c
https://blockchair.com/bitcoin-cash/transaction/4563ecec650d1779f0181fa9dc5cbb721dff11727f1886ba6adf3155a33c8c5d
https://blockchair.com/bitcoin-cash/transaction/29c80487fbc886ff4678743da5994c5b4f829cba1538dd583e23af62b21edf31


I moved some code around to try and make stuff more user friendly.

[TryNinja]

-snip-

Thank you for that!

I'm going to test my Time-Locked Address with the BCH chain in 5 days and post here if I managed to redeem my coins.

[debianbtc]

just wondering since coinb.in is for developers for testing - can it be used to test without btc or dodge in the address?  i would like to do some testing but rather not use real btc for general testing - this reddit seems to imply testing may infact be possible
https://www.reddit.com/r/dogeducation/comments/6eowvb/can_anyone_tell_me_how_to_use_coinbin/?ref=share&ref_source=link
but both the local javascript page and the live https://coinb.in/#txinputs return errors for addresses that have no coins.

also - am i incorrect in understanding that coinb.in can be used locally in an airgap situation to create transactions or must it be able to connect to generate transactions as i remember OutCast3 mentioned in a discussion on a bounty site....tho that may have been regarding an old pull requesst....

[Pente]

just wondering since coinb.in is for developers for testing - can it be used to test without btc or dodge in the address?  i would like to do some testing but rather not use real btc for general testing - this reddit seems to imply testing may infact be possible
https://www.reddit.com/r/dogeducation/comments/6eowvb/can_anyone_tell_me_how_to_use_coinbin/?ref=share&ref_source=link
but both the local javascript page and the live https://coinb.in/#txinputs return errors for addresses that have no coins.

also - am i incorrect in understanding that coinb.in can be used locally in an airgap situation to create transactions or must it be able to connect to generate transactions as i remember OutCast3 mentioned in a discussion on a bounty site....tho that may have been regarding an old pull requesst....

If you use the version at coinb.in, just go the the broadcast page, on the right side is a little icon that you can click, you can select the bitcoin test network there.

[TryNinja]

I have set up clone that works with Bitcoin Cash P2SH at http://www.motelmaya.com/BCC/BCC.html

I have used it to redeem several small Bitcoin Cash HODL txs:

https://blockchair.com/bitcoin-cash/transaction/8410ec11c603a02748b0257273b48e7005cc6cb20b8b7efa742d0606f711244c
https://blockchair.com/bitcoin-cash/transaction/4563ecec650d1779f0181fa9dc5cbb721dff11727f1886ba6adf3155a33c8c5d
https://blockchair.com/bitcoin-cash/transaction/29c80487fbc886ff4678743da5994c5b4f829cba1538dd583e23af62b21edf31

I moved some code around to try and make stuff more user friendly.

-snip-

Thank you for that!

I'm going to test my Time-Locked Address with the BCH chain in 5 days and post here if I managed to redeem my coins.

Update: My time-locked address reached its unlock date today.
I had a few BCH stored there from before the fork and I managed to get them by using the forked version from Pente without any issues! Thank you

If you want to try, just remember to change the chain to "Bitcoin Cash" in the Settings tab.

[MR,bon]

what project is currently working on, I want to join?