Usar "proof-of-work" en una oración

1. However, this approach of using proof-of-work and a blockchain to coordinate the attacks of the generals still has a subtle flaw: A general who is lazy could cheat the network by never using her computer to mine blocks

2. The amount of work used to add a block is easy to verify (they call it a proof-of-work algorithm because you can prove that you did the work)

3. Obtaining the blockchain requires connecting to other full nodes and checking to determine whose blockchain has the greatest proof-of-work total (by definition, this is assumed to be the consensus blockchain)

4. Hal Finney developed a reusable proof-of-work system that overlaps significantly with Bitcoin’s proof-of-work used in mining