Steemit Crypto Academy Season 2 : Selling and Buying NFT

Hello Steemian ...
Welcome to Steemit Crypto Academy Season 2

In Week 4th, we will learn Crypto Selling and Buying NFT

Before discussing how to use the Opensea Platform to process the NFT owned, it is good to get acquainted with NFT, especially if you are new to selling or buying NFT assets.

This rising crypto asset is one of the different cryptocurrency options with Bitcoin and other cryptocurrencies. NFT or Non-fungible tokens are digital assets that cannot be duplicated. This NFT cannot be used as a means of exchange but can be traded like physical assets.

While cryptocurrencies such as Bitcoin, Ethereum, and others are fungible tokens, they can be exchanged for other currencies with the same token value. In NFT, if tokens are exchanged, then the tokens obtained are entirely different from the original assets.
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How NFT Works
NFT uses blockchain technology just like cryptocurrency. Blockchain technology makes tracking unique NFT code doable. That way, you can find out who the original publisher is, the first buyer, and the current digital asset owner.
This NFT technology does not prevent others from having copies of a digital asset. However, the NFT found a unique code on the asset. It became a valid proof of ownership. It works similarly to the certification of a physical asset.
Seeing how it works, NFT is a compelling enough option to purchase collectible digital assets. Not only that, this technology is a good step in efforts to eradicate piracy practices.
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What Kind of Assets Does the NFT Include?
Any asset, as long as it is digital-based, can be treated as an NFT crypto asset. Call it Illustration, writings, memes, tweets, ball cards, etc., are already widely listed as NFT assets.

Today, however, digital artwork still dominates. A wide variety and types of digital art can be found in NFT's dedicated marketplace. These marketplaces sell these digital art assets with cryptocurrency transactions.
In addition, many other products use NFT. Examples include the New York Times and Quartz, both media companies actively selling article content in the form of NFT. You can also find NFT video content belonging to Paul Logan, who is a YouTuber.

These NFT can also represent physical objects, as Nike does with their sneaker products called CryptoKicks.
Twitter CEO Jack Dorsey sold his first tweet in the form of an NFT.

How to Buy and Sell NFT at Opensea?
Let's go into the main menu. We will explain how to transact NFT assets in OpenSea. Opensea is a marketplace that has a simple and user-friendly interface that allows anyone to buy, sell, or create NPCs.
OpenSea uses ethereum currency to transact. It would be best if you had a wallet on the Ethereum blockchain like MetaMask.