The objkt platform uses the Tezos cryptocurrency. Tezos is a “Proof of Stake” blockchain, making it 99.9% more energy efficient than “Proof of Work” platforms such as Bitcoin and Ethereum. Because of this, tezos tokens are one of the most environmentally friendly options available for buying and selling NFTs. If you are curious, follow this super handy video explanation on how to collect NFT’s using Tezos. If you are Australian, setting up a cryptocurrency account at coinspot.com.au is super easy.