BSV Reddit Mentions | ChartExchange

> would only allow for double-spending, which increases the total supply with each event.
Is that true? The coins can be spent in block x, the exchange or whatever recipient accepts it, the coins can get sold and money withdrawn, ok. Then the attacker releases a secretly mined chain of very optimistically say 6 bad blocks, and spends the same coins in block x+6, sending them to a different exchange to dump and withdraw other coin. The coins spent in block x become invalid, like it never happened, right? Otherwise block x+6 will not pass validation checks, even if it appears on "longest" chain with most proof of work, the nodes will not like a missing UTXO being spent again.
>BCH and BSV were created out of a desire to improve Bitcoin
This is false.
>“Forked Bitcoin is not Real Bitcoin” — Yes, it is
No it isn't.
>if every single computer in the world worked together, it would take over 60,000 years to crack one Bitcoin wallet.
This is a made up number.
>If quantum computing arrived in the wrong hands tomorrow, Bitcoin wallets would be drained, but the entire global financial system, which relies on asymmetric key encryption
AES256 CBC is symmetric not asymmetric. Encryption is used to obfuscate the wallet file and keys within it. Encryption is not used in bitcoin itself. ECDSA digital signatures for "sending" coins are not encryption.
>However, quantum computing could, in theory, break the encryption of people’s wallets.
If attacker had access to the wallet files. Quantum enhanced quadratic speedup attack on AES256 is still hella slow, reducing required operations from 2^{256} to 2^{128}. People are strongly discouraged to place their encrypted wallet files somewhere online, but some still do.
>This is possible because quantum computers can use Shor’s algorithm to break the elliptic curve signatures used in Bitcoin transactions
Not sure if this is right wording about breaking signatures. QC could be used to spend from addresses with a known public key. Those would be addresses that had btc spent from at least once. QC could theoretically calculate priv key from known pub key. Some say it could happen as fast as catching a transaction in mempool before it gets confirmed and using its now revealed pub key to RBF the transaction to a different address. If it is a longer ordeal, people who empty their addresses each time and send the change to a new address (most wallets do this) the revealed pub key becomes worthless after confirmation. However many exchanges and automated systems use one or several large balance addresses many many times to send from and receive to. Those may be targeted first, for the biggest gain and quickest payoff.

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