CryptoDragons is a unique NFT project, initially based on ETH blockchain. In 2022 the team and the community came to a conclusion that there is a need to transfer the project to a sidechain. For that purpose we choose Polygon. The transition happened in June 2022. Decentralization of all the metadata related to NFTs and data about illustrations is realized using IPFS storage and cannot be changed after the creation. All the commercial rights of NFT usage are transferred to the wallet owner and cannot be taken away.