Collections are digital ledgers on the Ethereum blockchain that store ownership information and provide functionality to manage and view information about digital collectibles. When you create a collection with Cargo the system deploys a special ERC-721 smart contract to the Ethereum blockchain.

After you create a collection you can begin creating collectibles within that collection. The Cargo ERC-721 smart contract is special in the sense that there are no bounds to how many collectibles you can create in a single transaction - so from the smallest to the largest projects Cargo can provide the infrastructure.