Chains & networks
Cardano: extended UTXO and application risk
Transaction structure helps explain execution, but cannot validate a project's promises.
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People & projects
In this article
Cardano uses proof of stake and an extended UTXO model. Transactions consume and create outputs under defined conditions. This differs from an account-balance model and affects how applications arrange state and execution.
Separate protocol properties from business claims
A project's claim that its chain is formally researched does not establish that the project's own contracts, administrators or token economics are sound. An application still needs a clear explanation of custody, permissions, fees and exit conditions.
For tokens, verify the asset's policy identity rather than relying on its display name. For a service, establish whether you retain control of assets or transfer them to an operator. For a yield product, identify who pays the yield and what happens when demand or token incentives decline.
Compare networks using the same questions: who validates, who can upgrade, where the data lives and how users exit. A familiar chain name cannot answer those questions for every application built on it.
Sources
Research checked 5 September 2026. Historical cases retain the date and legal status of the cited record.