Cortex is a public blockchain infrastructure that supports the execution of AI algorithms and AI-powered dApps. Coherently, machine-learning models would be ported onto smart-contracts where they can be called by users (i.e., "infering").
Cortex blockchain’s key technological milestone is its Cortex Virtual Machine (CVM). The CVM is ported from the Ethereum Virtual Machine (EVM), making it backward-compatible with the EVM. In addition, it features added layers for AI inference (infer instructions and deterministic inference engine). Cortex further uses a Proof-of-Work (PoW) consensus mechanism.
The CTXC token is used as a fee for transactions and smart-contract execution. When a transaction is invoked, Endorphins fees (equivalent to Ethereum’s gas) are allocated to miners and used to pay the AI / ML model providers.