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oh it's clear now, so i have another question, can i use the same private key that i used for claiming bitcoin cash, to claim now bitcoin gold? or i need to move again my bitcoin?
first you need to wait and see if they are going to implement a strong 2 way replay protection or not.
- if they do, it is not necessary but it is highly recommended.
- if they do not, you must split your coins first and then use the keys.
it is always safer to move your bitcoin first and then import the private keys in the new wallet software. you never know what malicious things or even simply bugs are in these wallets. they are not exactly tested or reviewed specially in if you are doing it in the early days.