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A miner can secretly build a blockchain that reverses transactions with little cost. He'll still get rewarded for correct protein folding.
by VMG 6y ago
A miner can secretly build a blockchain that reverses transactions with little cost. He'll still get rewarded for correct protein folding.
- Robotbeat 6y agoA penalty mechanism is possible that disincentives such behavior and makes it impractical. Filecoin has such a system. But a powerful enough mining pool (China has 65% of mining power) can also do this for Bitcoin.