Core marketplace functions are governed by smart contracts through the [[Ethereum Virtual Machine (EVM)]] pallet incorporating weight-efficient [[ZKP/Data Marketplace/Technical Basis/Cryptographic Foundations/Lifecycle of zk-SNARKs|ZKP verification]] (200,000 gas equivalent weight per verification) [82]. Event logging enables transparency through indexed logs tracking marketplace activities, stored in [[Substrate]]'s event system [80]. See also: [[Overview of Use-Cases]]