Public blockchains can alter the blockchain ledger by:
A) Creating a hard fork of the blockchain data, tooling and/or software
B) Achieving community consensus via a Smart Contract to update the ledger
C) Re-hashing the blocks from the total block height down to the genesis block
D) Blockchain ledgers are immutable and can never be altered

Question

Quizplus · Accepted Answer

The Answer of Public blockchains can alter the blockchain ledger by:
A) Creating a hard fork of the blockchain data, tooling and/or software
B) Achieving community consensus via a Smart Contract to update the ledger
C) Re-hashing the blocks from the total block height down to the genesis block
D) Blockchain ledgers are immutable and can never be altered

Public Blockchains Can Alter the Blockchain Ledger By