I am studing blockhain and i know that a block hash is linked to the next block in previous hash and it cant be changed for valid reason.
Reason is : because if someone have changed hash then then he/she would have to change in hundreds or millions of nodes/system also otherwise it wont be valid.
My question is : If nonce will be changed by some miner then the hash will also get changed and it should be changing the next block's previous hash. correct me if i am wrong. I mean if a miner can change the hash of a block then how he can replicate that hash in all the nodes or system for that block? this is confusing.