Skip to main content

Probabilistic Guarantees

Definition

Probabilistic Guarantees represent assurances that a system or event will perform in a specified manner with a measurable degree of likelihood. In blockchain technology, these relate to the statistical certainty that a transaction will achieve irreversibility after a designated number of block confirmations. They form a foundational element of security models for proof-of-work and proof-of-stake protocols, where the expense or complexity of altering historical states grows significantly. These guarantees furnish a practical level of transaction finality, absent absolute mathematical certainty, which is vital for settlement processes.