<p>What are the key differences between Ouroboros' Proof of Stake and Solana's Proof of History in aspects such as security, decentralization, functionality, efficiency (such as number of transactions per second) and energy use? Are there published papers or articles which compare the two?</p>

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2021-09-14T04:11:25.867Z
https://eprint.iacr.org/2016/889.pdf https://medium.com/solana-labs/proof-of-history-a-clock-for-blockchain-cf47a61a9274 the answer would be found by reviewing the two papers and comparing the two i havent read through either yet but will and post my personal opinion about the two
James Murtagh
<proof-of-stake><ouroboros><proof-of-history>
Difference between Ouroboros' Proof of Stake and Solana's Proof of History
# Difference between Ouroboros' Proof of Stake and Solana's Proof of History

(Asked by: username_0 on 2021-08-30)

What are the key differences between Ouroboros' Proof of Stake and Solana's Proof of History in aspects such as security, decentralization, functionality, efficiency (such as number of transactions per second) and energy use? Are there published papers or articles which compare the two?

**Tags:** proof-of-stake, ouroboros, proof-of-history
> **Comments:**
> **username_1**: https://eprint.iacr.org/2016/889.pdf https://medium.com/solana-labs/proof-of-history-a-clock-for-blockchain-cf47a61a9274 the answer would be found by reviewing the two papers and comparing the two i havent read through either yet but will and post my personal opinion about the two  

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