Entering the Steemit Engagement Challenge Seoson 2 – Week 4 there is something that really caught my attention in this challenge sponsored by @steemitblog, which is one of the issues raised by the SteemitCryptoAcademy community about What are NFTs, because I see this issue as an issue that looks simple, but has a very big influence on one's knowledge in stepping into the world of cryptocurrencies. At the same time, it has an important role in changing the world in the future.

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Basically, NFT has been around since 2014 and surprisingly, in November 2017 the value of buying and selling NFT had reached USD 174 million. This is due to the increasing popularity of digital art buying and selling transactions, because in general there is only one of each type due to the very limited process of achieving a unique identification code, more precisely NFT creates digital scarcity.

NFT stands for Non-fungible Token which means one of the most exciting transformative innovations blockchain offers to developers and businesses. But before we go any further, the important thing that must be understood first is to understand the concept of fungibility which is the most important element in NFT.

Fungible is something that has a clarification, namely fungible assets can be exchanged or divided because the items that are exchanged or divided are basically very identical. Another thing that is owned by fungible is the difference between physical assets and the value they have.

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The second stage is registering in the desired market that has an NFT collection. This is done by connecting our account in the market with the crypto wallet application that was previously created. The 3rd stage is finding the NFT collection that you want and has a value for resale.

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While the 4th stage or the last stage is buy the desired NFT. In this stage there are 2 ways that are usually done, the first way is to buy NFT at a fixed price or the prevailing general price. The second way is by participating in an auction, this method is required to compete with others by offering the highest price and then we can have it and become a private collection.

As for how to create a new NFT, one of them is choosing the item that you want to turn into an NFT that has its own uniqueness from artwork, music, photos, video games, GIFs, and meme collections. The second way is to determine the Blockchain we want, then choose a crypto wallet, and the last step is to determine the best NFT market.

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When we talk about the security of NFT assets themselves, theft still happens, because nothing is really safe in the digital world, hackers will still look for loopholes to steal assets that have a high value. While NFT itself offers artists greater protection against theft, the risk of someone's work being stolen remains. So in this case everyone who owns NFT assets can protect them with several steps, such as:

1. Storing NFTs in Non-Current wallets, as Non-Curture wallets offer higher security than storage wallets.
2. Doing buying and selling in a trusted market.
3. Always evaluate every deal very carefully and always exercise wise judgment.
4. Add a watermark to the collection you want to market
5. Give copyright to every work of art.
6. Next is to avoid installing fake extensions or spyware in disguise.

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Then in NFT it is very necessary to use Interplanetary Files System or IPFS because the use of IPFS allows in the network to distribute data, especially across nodes. This is because the use of IPFS in NFT makes data more secure than a centralized data storage and distribution system.

NFT technology is used to create artificial scarcity of digital creative art by creating only one NFT accompanied by a unique signature. Because specifically NFT is usually stored on the Ethereum Blockchain, although other Blockchains also support it.

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