An NFT can be anything that can be transformed into a digital format. Drawings, photographs, movies, GIFs, music, in-game objects,  and even a tweet may all be converted into NFTs, which can then be traded online using bitcoin.

NFTs, on the other hand, are distinguished from other digital forms by the fact that they are supported by Blockchain technology. For the uninformed, Blockchain is a decentralized ledger that records all transactions. It's similar to a bank account, except that all of your transactions are transparent and visible to anybody, and they can't be edited or updated after they've been recorded.

NFTs are gaining a lot of traction these days since they're a great method to show off and market your digital artwork. Hundreds of millions of dollars have been spent on NFTs since its introduction in 2015, and Terra Nulius was the first NFT on the Ethereum Blockchain, despite the fact that this project was just an idea that allowed users to customize a short statement that was subsequently recorded on the blockchain. After that, in 2017, Curio Cards, Crypto Punks, and Crypto Cats emerged, before NFTS gradually gained public exposure and eventually mainstream use in early 2021.

Working of NFTs:

Because it grants consumers entire ownership of a digital asset, NFT is based on blockchain. For example, if you're a sketch artist and convert your digital asset to an NFT, you'll have Blockchain-powered proof of ownership.

To put it another way, when you list your NFT on a marketplace, you pay a gas fee (transaction fee) to use the Blockchain, after which your digital art is registered on the Blockchain, indicating that you (your address) own the specific NFT. This provides you complete control over your content, which no one, even the marketplace owner, may edit or modify.

To obtain exclusive ownership rights, an NFT is constructed, or as crypto aficionados refer to it, "minted". At any given time, NFTs can only have one owner. NFT owners can also digitally sign their artwork and record specific information in the metadata of their NFTs, in addition to having exclusive ownership. Only the person who purchased the NFT will be able to see this.

Cryptocurrency is a form of money that is fungible, or interchangeable. For example, if you own one crypto-token, such as Ethereum, the next Ethereum you own will be worth the same. However, NFTs are non-fungible, which implies that the value of one NFT is not the same as the value of another. Every piece of art is distinct from the others, making it non-fungible and one-of-a-kind.

Future of NFTs:

NFTs' potential has grown greatly beyond gaming. Non-fungible tokens are being investigated by businesses and blockchain initiatives for use in identifying, certifying, and ticketing, as well as allowing fractional ownership of both digital and real-world goods. Any situation in which clear ownership and traceability are required qualifies as an NFT use case.

While compatibility and scalability remain issues, NFTs have demonstrated their utility in proving uniqueness, scarcity, and ownership for both digital and physical goods. NFT technology has shown to be a big growth segment of the blockchain industry as use cases expand into digital identity records and representation of rare real-world goods. It is already a mainstay in blockchain gaming and collectibles.

Another issue linked with NFTs that cannot be overlooked is their undeniably severe environmental impact. Crypto mining is used to validate transactions, which necessitates the use of high-powered computers that run at a very high capacity, ultimately hurting the environment.