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BTC.com has added protection against reproduction and a coin mining tool for the Bitcoin Cash / SV durometer. This makes it safe to spend Bitcoin Cash from their wallet, without the possibility of losing your newly created Bitcoin SV in the process. It also allows users to divide their coins, obtaining both their Bitcoin Cash and Bitcoin SV.
Reproduction protection is a way to avoid replay attack, which becomes a problem after every polemical obstacle. A replay attack works because the user information before the fork on the two split blockchains is identical. When a user submits a transaction, he signs the transaction to prove that he holds the private keys for that portfolio. During a replay attack, the attacker copies this information. Because the private key is the same on both chains, the signature will also be accepted as valid on the other chain, even if the attacker does not own the private keys.
Playback protection can be performed in two ways. It can be done at the token developer level by making the transaction from an invalid chain on another, changing the way the transactions are handled. This can be done by changing the address format or by changing some other parameters so that the transactions of the two chains are incompatible.
But this would require a substantial change in the money portfolios, and everyone should be updated.
Another way to prevent replay attacks is to move users' coins into a safe environment after the fork. BTC.com is providing a way to do it. Basically, users send their money in bitcoins to themselves. This ensures that any future transactions will not be valid on the Bitcoin SV blockchain. They will come from an address not yet created on the Bitcoin SV chain. After completing the process, users can then "extract" their Bitcoin SV from BTC.com and move it to a compatible Bitcoin SV portfolio. BTC.com does not currently have a portfolio compatible with Bitcoin SV, so finding a place to put your SV coins will be your responsibility.
If you are not a member of BTC.com or if you have another wallet you wish to share, BTC.com can do it too. Simply register if you are not already a member and then select the "Import Portfolio" option and then change the Bitcoin type to Bitcoin Cash. After importing, you will have Bitcoin Cash at BTC.com which you can split as described above. Once you have your Bitcoin Cash and Bitcoin SV split, you can move them both to your favorite portfolio.
Hardfork is a complicated process that causes headaches for everyone involved. Even those who did not want to participate were almost obliged. With the fall in Bitcoin Cash prices, the redemption of Bitcoin SV is a useful resource to recover part of that lost value.
But at least sites like BTC.com make it easy for users. We hope that coin-level protections will be implemented at a future date. This would allow at least Bitcoin Cash users to operate normally without fear of losing their Bitcoin SV. In case they decide to redeem them later, the coins will remain in their original account. Assuming that the user keeps track of their private keys, coins should still be accessible.
You can read the BTC.com instructions on how to split your coins here.
We will continue to cover the ongoing relapses from the Bitcoin Cash / SV targeting system.
