Knowledge check

Cryptography inside blockchains: hashing, Merkle trees, and signatures

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

Question 1 of 10

What makes tampering with an earlier blockchain block computationally evident?

Question 2 of 10

What does a Merkle proof let a client do?

Question 3 of 10

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

Question 4 of 10

How is a Merkle tree's root hash built from a block's transactions?

Question 5 of 10

What elliptic curve do Bitcoin and Ethereum use for ECDSA signatures?

Question 6 of 10

What are the a and b parameters in secp256k1's curve equation y² = x³ + ax + b (mod p)?

Question 7 of 10

What happens if you lose the private key to a cryptocurrency address?

Question 8 of 10

What lets a client prove a specific transaction is included in a block, without downloading every transaction in it?

Question 9 of 10

What core cryptographic primitive from earlier modules do Bitcoin and Ethereum reuse for transaction signing?

Question 10 of 10

According to the module, do Bitcoin and Ethereum invent new cryptography?

0 / 10 answered