# kaal:claim:5225296-005

**Claim.** On comparative metrics of security, energy use per transaction, and governance flexibility, SPoS outperforms contemporary PoS variants such as Casper FFG and Ouroboros Praos in decentralization.

**Type.** empirical  **Support.** argued

**Holds when.**

- comparison against Ethereum Casper FFG and Cardano Ouroboros Praos

**Source quote.**

> Comparative metrics—such as security (Byzantine fault tolerance up to 33% adversaries), efficiency (energy use per transaction), and governance flexibility—suggest SPoS excels in decentralization

**From.** Wulf A. Kaal, *Cryptographic Foundations and Interdisciplinary Dimensions of the Secure Proof of Stake (SPoS) Conse* (2025), Comparison with Contemporary PoS Variants

**Cite as.** Wulf A. Kaal, Cryptographic Foundations and Interdisciplinary Dimensions of the Secure Proof of Stake (SPoS) Conse (2025). SSRN: https://ssrn.com/abstract=5225296

**Verify.** sha256 of source PDF `b2fec675d906334ad67e13b2d97261dc31e38061022867eb3f9ceadd95f4878d` at https://raw.githubusercontent.com/wulfkaal/Academic-Papers/main/papers/pdf/Kaal%20-%202025%20-%20Cryptographic%20Foundations%20and%20Interdisciplinary%20Dimensions%20of%20the%20Secure%20Proof%20of%20Stake%20%28SPoS%29%20Conse.pdf

**Topics.** decentralization, consensus-and-security

**Keywords.** spos, casper-ffg, ouroboros-praos, decentralization, comparative-consensus

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