Stablecoin Infrastructure Glossary
Proof of Work
Proof of work is a family of blockchain consensus mechanisms in which participants expend computational effort to compete for the right to propose blocks and extend the accepted transaction history.
Explanation
In proof-of-work systems such as Bitcoin, miners repeatedly perform hash computations until a valid result satisfies the protocol's difficulty target. Other nodes verify the result cheaply and apply consensus rules to determine the accepted chain. Security relies in part on the cost of acquiring enough computational power to rewrite or disrupt the ledger. The model can consume substantial energy because block production requires continuous computation.
Why it matters
Consensus choice determines how transactions are ordered, how reversal risk declines, and what resources protect the ledger used for digital-asset transfers.
Example
A proof-of-work miner can include a stablecoin-related transaction on a compatible network after producing a valid block under that network's consensus rules.
Related terms
Last reviewed: September 2026