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1  Alternate cryptocurrencies / Altcoin Discussion / Re: How to Safely Claim Bitcoin Gold on: October 25, 2017, 04:54:14 PM
there is some kind of official guide to redeem btc gold? Smiley through privkeys! Smiley?
thanks

I got my bcash like this:

1) Moved my bitcoins to another address. (newly generated)
2) Installed a VM and downloaded electron cash.
3) Imported my old priv keys into electron cash.
4) Dumped my bcash Wink

I am pretty sure this would work exactly the same with bgold but if my memory serves right the only thing bothers me is that bgold has no replay protection. And I don't know how can that harm me.

Since I always move bitcoins at the step 1, bgold lacking of RP confuses me and prevents me from taking action.

I need solid information from an experienced forum user.
I did the exact same thing as you with BCash, sending the BCash from the ElectronWallet to Kraken and then exchanging it for BTC there.

Critical for safety is step 1 as then all your BTC is moved to new addresses which only exist on the original chain - nothing that happens on the new chain can then affect those funds. This assumes no replay has occurred.

If replay DID occur on the new chain, step 1 would be paralleled on the new chain.

NEVER do a transaction on the new chain from addresses which have BTC balances on the original chain as a replay would move these latter funds also. Always check the balances of these addresses on the original chain are zero, so no replay is possible to that chain.

With BGold if you do step 1, check it has not been replayed to the new chain. Then once a wallet supporting BGold has been found, do Step 3 with that wallet. If replay happened, then in Step 3 you would see balances of zero. If the original balances are there however, in BTG, then no replay has happened.

You can then go ahead and send these BTG funds to an exchange for conversion to BTC. No replay to original chain of this can happen - because on the original chain these address balances are zero, because you shifted the funds to new addresses in Step 1.

As well as a wallet supporting BGold we need a blockchain explorer for BGold so we can check the BTG balances of addresses. We can compare this to the balances of these same addresses on Bitcoin Blockchain.info Explorer at each stage to ensure we know exactly what's happening, and to check if replay has occurred.

If you are being attacked by replays then you need to investigate how you can counteract them, eg see below for one suggestion :-
https://www.youtube.com/watch?v=CAhgvzNEhCM

Note when you are sending funds to your own addresses, the replay attack does not cause any loss of funds since it is only being sent to yourself. If sending to a trusted honourable party then again they would likely just return you the additional funds mistakenly sent to them, so there would be no loss. Replay attack can only cause loss of funds if the receiver is NOT a trusted honourable party, and might NOT return the funds you mistakenly sent. Replay attack only sends funds to the SAME RECEIVING ADDRESS(ES) as you specified in your original transaction.




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