According to ERC-721
ERC-721 is a free, open standard that describes how to build non-fungible or unique tokens on the Ethereum blockchain. While mo
Why would you do this, since Hyperledger is a permissioned blockchain and Ethereum a public one?
Anyways, if you mean to create an asset with a unique identifier, you could create a smart contract with a ID parameter that implements your request, so everytime you try to create the idem with that same ID, the contract reject your request.