Blockchain was the invention of Satoshi that solved an old computer science problem. It gave you a digital asset that could not be copied and pasted. Blockchain is what makes Bitcoin.
No, POW mining is what makes Bitcoin. This is the difference between BCH and SV. SV believes in POW mining, BCH believes the whitepaper ends at pg 2.
Yes, Bitcoin uses a blockchain but didn't come up with the design the novel invention was the POW mining game. A blockchain without POW mining is only useful in niche cases.
