# kaal:claim:5225296-018

**Claim.** SPoS binds validator votes irrevocably by requiring commitment via hash preimages that are revealed only after a designated period, driving the probability of successful post-facto vote alteration below 2^-128.

**Type.** mechanism  **Support.** evidenced

**Holds when.**

- asynchronous and partially synchronous network conditions

**Source quote.**

> These schemes require validators to commit to votes via hash preimages, revealed only after a designated period, rendering post-facto alterations computationally infeasible with a probability of success below 2^-128

**From.** Wulf A. Kaal, *Cryptographic Foundations and Interdisciplinary Dimensions of the Secure Proof of Stake (SPoS) Conse* (2025), Consensus and Validation Mechanisms

**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.** institutional-design

**Keywords.** commitment-schemes, vote-binding, hash-preimage, slasher

**Canonical form.** This markdown file is the canonical hashed representation of the claim. Its sha256 is the content hash used for attestation.