
What is a block hash in Bitcoin?
Could you please elaborate on what a block hash is in the context of Bitcoin? Specifically, I'm curious about how it's generated, its significance in the blockchain, and how it ensures the integrity of the ledger. I understand that hashes are used in cryptography, but how does this concept translate to the specific use case of Bitcoin? Additionally, is the block hash unique for every block in the chain, and if so, what are the implications of this uniqueness? I'm eager to gain a deeper understanding of this fundamental aspect of Bitcoin's blockchain technology.
