Blockchains are decentralized ledgers which, by definition, are not controlled by a central authority. Due to the value stored in these ledgers, bad actors have huge economic incentives to try and cause faults. What algo was the original solution to the potential problem as specified by Satoshi?
A) Proof of Stake
B) Byzantine Fault Tolerance
C) Proof of Burn
D) Proof of Work
E) Dynamic Proof of Stake

Question

Blockchains are decentralized ledgers which, by definition, are not controlled by a central authority. Due to the value stored in these ledgers, bad actors have huge economic incentives to try and cause faults. What algo was the original solution to the potential problem as specified by Satoshi?
A) Proof of Stake
B) Byzantine Fault Tolerance
C) Proof of Burn
D) Proof of Work
E) Dynamic Proof of Stake

Quizplus · Accepted Answer

The big breakthrough when Bitcoin was invented, was the use of Proof-of-Work as a probabilistic solution to the Byzantine Generals Problem as described in depth by Satoshi Nakamoto.

Blockchains Are Decentralized Ledgers Which, by Definition, Are Not Controlled