Beginner
Blockchain & Web3
Q2 / 100
What links each block to the previous block in a blockchain?
Correct! Well done.
Incorrect.
The correct answer is A) A cryptographic hash of the previous block, included in the current block's header
A
Correct Answer
A cryptographic hash of the previous block, included in the current block's header
Explanation
Each block contains the hash of the prior block, forming a chain — if any earlier block changes, its hash changes too, breaking the chain and revealing tampering.
Progress
2/100