Knowledge check

Cryptography inside blockchains: hashing, Merkle trees, and signatures

3 questions testing what you just read — no login, no tracking, just immediate feedback.

Question 1 of 3

What makes tampering with an earlier blockchain block computationally evident?

Question 2 of 3

What does a Merkle proof let a client do?

Question 3 of 3

What's the quantum-risk nuance specific to Bitcoin/Ethereum addresses, per the module?

0 / 3 answered