Synthetic Stake Inflation in Proof-of-Stake and Stablecoin Systems: Structural Dilution of Economic Security and Logic-Layer Enforcement

Abstract

Proof-of-Stake (PoS) and stablecoin systems rely on staking and collateralization mechanisms to represent real economic security. However, an increasing number of protocols permit the creation of <i>synthetic stake</i>—derivative, mirrored, or recursively referenced representations of the same underlying capital. This paper defines Synthetic Stake Inflation as a structural vulnerability in which the apparent quantity of staked or collateralized assets exceeds the realizable economic value securing the system. We analyze how liquid staking derivatives, recursive collateral usage, and cross-protocol composability enable stake amplification without proportional risk exposure. Existing safeguards, including slashing, collateral ratios, and audits, are shown to be insufficient due to their inability to detect stake duplication across domains. We propose a logic-layer enforcement model that constrains stake representation through exclusivity rules, provenance verification, and validator-level accounting. This approach restores the correspondence between economic reality and on-chain security metrics, addressing a critical integrity gap in modern PoS and stablecoin architectures.