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

question 140

Multiple Choice

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

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