SmartMesh (SMT) ERC-20 token is used as a means of payment within the SmartMesh ecosystem, as well as the reward coin to node contributors and users. It is listed on a few exchanges and trading against BTC, ETH and USDT.
Ark (ARK) is the native token of the blockchain-based Ark platform. The platform itself provides the instruments that enable users to develop and customize other blockchains. The blockchains can be managed through the TypeScript programming language. Moreover, these blockchains can be connected to each other via the functionality of Ark. The Ark framework can be used to execute peer-to-peer operations, manage the data on a distributed ledger, access API solutions, etc. The Generic Transaction Interface can be used to customize the types of transactions and entire blockchains. Unlike Solidity, TypeScript is much easier for the general public which makes Ark more user-friendly.
CRYPTO20 (C20) is an “autonomous token-as-a-fund” and represents an Ethereum-based token. As of now, it is trading on a few exchanges with HitBTC being the most active exchange platform on its list. CRYPTO20 are so-called close-ended tokens. It means that no new tokens can be created. CRYPTO20 can only be purchased.