NFT Blockchain analysis ( BTC, ETH, Tezos, Polygon, Flow etc)...

Research report on the different blockchains that are used for NFT´s. Detailed research, with pros and cons of each, as well as token standards, environment impacts, amount of transactiosn allowed etc... Detailed review of all and comparison of all
In addition, definitions and differents between prrof of work, proof of stake etc.. and a brief explanations on smart contracts