Proof of Stake vs. Proof of Work: Trade-offs

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The concept Proof of Work (PoW) and Proof of Stake (PoS) both solve the same problem — how do strangers agree on a single shared history without a central authority — but they secure that agreement with fundamentally different resources. PoW (Bitcoin) spends physical energy: miners race to find a hash below a target value, and the chain with the……

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