Previously, BTC could be used to purchase TSL, but that was later closed. However, DOGE can be used to buy some items in the store, which is my first time learning about it. I must check it out.

Why is the BTC network secure?
Bitcoin investors mistakenly believe that an increase in hash power guarantees higher security.
But this overlooks a key fact: the output of Proof of Work (PoW) is not computational power, but economic cost.
What matters is not how many hash values are generated, but how high the cost of generating these hash values is.
If the increase in computing power is driven by cheaper hardware or cheaper electricity, then having high computing power is meaningless.
If the rewards priced in BTC decrease, miners may still be able to produce high computing power, but their mo