Check if there's any BCH left in my address

[dazz.]

Thank you for the detailed answer. I'll get to it as soon as my BTC wallet finishes syncing. 8% to go, but man, this shit takes forever, even with the dbcache=6144 set to 6GB. It's only doing 0.5% per hour.

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[LoyceV]

Does it make more sense (timewise) to claim all the forks directly on coinomi? Except for BCD (IIRC), you can claim the rest directly with them; you move the private keys less times, make a single sweep, and can even dump everything for BTC at the same place.

Yes, that's faster. But I prefer to sign transactions offline, and BCH is the most valuable Forkcoin. Coinomi still doesn't let you split BCH-A though, and indeed BCD isn't supported.

What do you think about Bither wallet?

Bither supports more "exotic" Forkcoins than Coinomi, but it keeps crashing when I import a private key. So I gave up (and I trust Coinomi more). Bither was also very annoying to work with, part of the task had to be done in Bitpie instead of Bither.

Really sorry, but I'm not sure I understand the bolded part. Do you mean I need my private keys to transfer the coins to a new wallet? I plan on doing that with the BTC Core wallet, which would be using my private keys, obviously.
Then I can safely use my (now empty) old wallet to claim the coins, it I got it right.

Think of it this way: your wallet is a piggy bank, and any Forkcoin wallet you install gets full access to everything inside your piggy bank. If the wallet is malicious, it can steal everything! To prevent this, you take out as much as you can (AKA the Bitcoins) from your piggy bank before installing any Forkcoin wallet. And even then, you should be very careful what you install on your system as a compromised wallet would still get access to other data on your PC. That's why I only install Forkcoin wallets inside a VM.

[dazz.]

OK, so I'm in the process of sending my coins to a newly created address in the new wallet. Is there a command to check if the address is in the wallet, to be 150% sure that I won't be sending the money to an address I don't own?

listaddressgroupings outputs nothing

[Beparanf]

OK, so I'm in the process of sending my coins to a newly created address in the new wallet. Is there a command to check if the address is in the wallet, to be 150% sure that I won't be sending the money to an address I don't own?

listaddressgroupings outputs nothing

The only thing to check if you properly the right address is to double check or more the address you will gonna send the BTC. You can check on the blockchain website the pending transaction on your new address once you successfully transfer funds.

[HCP]

Is there a command to check if the address is in the wallet, to be 150% sure that I won't be sending the money to an address I don't own?

Try using the getaddressinfo command:

Code:

getaddressinfo 1BitcoinAddress

Right near the top of the output you should see "ismine". If that is "true" then the private keys that the address is derived from is in your wallet.dat.



NOTE: If you have multiple wallet.dat's "open" in Bitcoin Core, make sure you have set the correct wallet selected in the dropdown menu in the console window

[dazz.]

Is there a command to check if the address is in the wallet, to be 150% sure that I won't be sending the money to an address I don't own?

Try using the getaddressinfo command:

Code:

getaddressinfo 1BitcoinAddress

Right near the top of the output you should see "ismine". If that is "true" then the private keys that the address is derived from is in your wallet.dat.



NOTE: If you have multiple wallet.dat's "open" in Bitcoin Core, make sure you have set the correct wallet selected in the dropdown menu in the console window

That did the trick, thank you. You can never be too sure of something like this, hehe.

[HCP]

That did the trick, thank you. You can never be too sure of something like this, hehe.

No, you can't... and I admire your desire to "get it right" without rushing into things

Thank you for the detailed answer. I'll get to it as soon as my BTC wallet finishes syncing. 8% to go, but man, this shit takes forever, even with the dbcache=6144 set to 6GB. It's only doing 0.5% per hour.

I forgot to ask... what CPU do you have? and are you storing the Bitcoin Core data on an HDD or SDD and is it internal or external?

[dazz.]

I forgot to ask... what CPU do you have? and are you storing the Bitcoin Core data on an HDD or SDD and is it internal or external?

It's an aging Sandy Bridge I7, tried a number of things including loading my overclock BIOS profile. That didn't seem to make a difference.
8GB of RAM and the wallet sits in a slow internal 5400 rpm HDD for now. I think I should be fine if I'm diligent and don't let it go out of sync for months like I just did, but I'm guessing the hard drive is my bottleneck in this particular task.

[HCP]

but I'm guessing the hard drive is my bottleneck in this particular task.

Yes... The i7 isn't bad... the 8gigs isn't ideal (like my setup), but it will definitely be the 5400rpm causing the largest bottleneck for you at the moment. A 7200rpm HDD is pretty slow, and a 5400 will be even worse

[dazz.]

I'm making some progress. The new wallet is done and secured, and all the coins transferred there. Already imported the old private keys into Electron Cash to claim my BCH, but I'm getting the following error when I try to send the money to an exchange.

Possible BTC Segwit address in 'Pay to' field. Please use CashAddr format for p2sh addresses.

Any idea what that means, please?

EDIT: Tried a different exchange and it worked. Must be something to do with legacy vs SegWit addresses in those exchanges, I guess. Not sure how any of that works, I'll look it up

[LoyceV]

imported the old private keys into Electron Cash to claim my BCH
~
Tried a different exchange and it worked.

Did you add replay protection, or did you accidentally send your BSV and BCH-A to the same exchange too?

[dazz.]

Did you add replay protection

No idea what that is or if I did I'll google it, but right now I'm just sending a very small amount of BCH to the exchange to make sure everything works.

or did you accidentally send your BSV and BCH-A to the same exchange too?

As far as I can tell there's only BCH in the Electrum Cash wallet.  I downloaded it from here: https://electroncash.org/ Got the portable version.
Would screenshots help? Of what?

The exchange that worked is Poloniex, the transaction that threw the error was the one to OKEX, in case it helps.

The Poloniex address is 13jaEByoEb78iMAVM7QsJosxxwZbt3hr9k
The OKEX address is 3L7fzCLNT77r4piGjDRASGpfRBT2fGyKac

[LoyceV]

Did you add replay protection

No idea what that is or if I did

Replay protection stops other Forkcoins from transferring to the same address on their respective chain. BCH/BSV/BCH-A by default don't use replay protection.

The Poloniex address is 13jaEByoEb78iMAVM7QsJosxxwZbt3hr9k

Blockchair shows only BCH has moved. Your sending address had received the transaction on the same day (I guess you sent that within your own wallet), and those funds were received in 2014. This address still holds BCH-A and BSV. If you have a significant amount, you can claim BSV/BCD/BTG/BCH-A too. If it's only a few bucks worth of BCH, the others lower than BSV may not be worth your time.

[hosseinimr93]

The OKEX address is 3L7fzCLNT77r4piGjDRASGpfRBT2fGyKac

I think you should enter the address in CashAddr format.
You can use blockchair to find the CashAddr format of your address.
https://blockchair.com/bitcoin-cash/address/3L7fzCLNT77r4piGjDRASGpfRBT2fGyKac

[dazz.]

Did you add replay protection

No idea what that is or if I did

Replay protection stops other Forkcoins from transferring to the same address on their respective chain. BCH/BSV/BCH-A by default don't use replay protection.

The Poloniex address is 13jaEByoEb78iMAVM7QsJosxxwZbt3hr9k

Blockchair shows only BCH has moved. Your sending address had received the transaction on the same day (I guess you sent that within your own wallet), and those funds were received in 2014. This address still holds BCH-A and BSV. If you have a significant amount, you can claim BSV/BCD/BTG/BCH-A too. If it's only a few bucks worth of BCH, the others lower than BSV may not be worth your time.

That qpf0enqj3mwsm0lu43cgteks0j39agmt9vu3upkd3f is one of the newly created ones in the Electrum wallet. I sweeped two of my lesser addresses there for testing purposes.
I really don't understand how that replay protection thing works. I get the idea, but I'll need to dig into it.

[dazz.]

The OKEX address is 3L7fzCLNT77r4piGjDRASGpfRBT2fGyKac

I think you should enter the address in CashAddr format.
You can use blockchair to find the CashAddr format of your address.
https://blockchair.com/bitcoin-cash/address/3L7fzCLNT77r4piGjDRASGpfRBT2fGyKac

Thanks, I'll try that.

EDIT: Unfortunately the OKEX web doesn't give me the option to input a different deposit address. I'll contact their support desk

[LoyceV]

I really don't understand how that replay protection thing works. I get the idea, but I'll need to dig into it.

As long as you have an input that doesn't exist on the other chain, the transaction can't be replayed there. I can send you some "dust" to ensure it can't be replayed, just give me a BCH addy and add my dust to your transaction.
Disclaimer: this might compromise your privacy by exposing your addresses. It's up to you if that's worth it.

[dazz.]

I really don't understand how that replay protection thing works. I get the idea, but I'll need to dig into it.

As long as you have an input that doesn't exist on the other chain, the transaction can't be replayed there. I can send you some "dust" to ensure it can't be replayed, just give me a BCH addy and add my dust to your transaction.
Disclaimer: this might compromise your privacy by exposing your addresses. It's up to you if that's worth it.

OK, I think I get it now. I just swept all my old addresses to new ones in the Electrum Cash wallet, meaning that any transfers I do with these new addresses won't effect the balance of my old addresses in the other forkcoin chains, right? The fact that the old addresses still hold the coins in BCHA seems to confirm that (just double checked at blockchair)