ZK Coin (ZKC) is the native token of the Boundless protocol. Each proof on the Boundless marketplace is secured by $ZKC; provers must lock $ZKC as collateral to prove an order, and requestors pay for proofs using the native token of the underlying blockchain (for example, ETH on Ethereum or SOL on Solana). As more protocols use Boundless, the amount of $ZKC locked as@Boundless #boundless $ZKC