FAQ: what is a token and why they are needed

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2018-11-28 20:15:10

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FAQ: what is a token and why they are needed Source:

Collecting expensive items — the main hobby of the rich. However, how can we ensure the preservation of your collection against intruders or other unforeseen threats? All easy enough to transfer his collection to the blockchain! However, for this first you need to learn the basic concepts unique token.

the

That means «not interchangeable token»?

to fully understand the essence of the issue, let's take a closer look at the concept of «interchangeability».

When something is interchangeable (in this case, a token), it can easily be replaced by something identical. For example, Bank notes with the value $ 1 is no different from other banknotes of the same denomination. If you lend a friend a dollar, you are unlikely to be upset if after some time he will return not just the dollar.

But the unique characteristics of the items cannot be replaced even identical in appearance. Example — the airline ticket. Although it may look like thousands of other tickets, you won't be allowed to Board the aircraft with a foreign ticket.

the

Why unique tokens differ from the other tokens?

Because they can offer their holders the unique characteristics that make the coin very rare.

Most cryptocurrencies (including) are completely interchangeable coins. At the same time for altcoins often use standard ERC-20, created on the basis of Ethereum.

For a unique token also has its own decision — ERC721. This standard can be compared to baseball cards. Each card has unique information, while the card itself may be very rare. By the way, ERC-721 already baseball teams.

image Source —Stockhead

ERC-721 rules of interchangeability don't work. If you accidentally send someone a token, you have to ask recipient to send back this token. Obtaining any other ERC-721 token does not correct the situation. This implies another rule — standard ERC-721 imply indivisibility. Collectibles cannot be divided into parts, but interchangeable with the same dollar can be divided into one hundred cents.

the

Why do we need a standard ERC-721?

the Main scope of its use — collecting.

One of the first and most successful projects using ERC-721 was CryptoKitties. The game used two main weaknesses — the love cats (even virtual) and desire «stand out from the crowd». Popularity CryptoKitties at the time, soared to the heavens, and the most expensive cat on the block chain was sold for the equivalent of $ 120,000.

Now the concept of uniqueness of tokens in many blockchain games. ERC-721 found its use even in sports.

the

And what about the pros and cons of unique tokens?

ERC-721 is not perfect, like ERC-20 this standard has its drawbacks.

These tokens have all the advantages of regular altcoins based on Ethereum, which we wrote earlier. For example, the unique tokens can help to transfer practically any asset on the blockchain with absolute protection from any hacks.

Disadvantages too, unfortunately, is. ERC-721 is a relatively new standard, so the unique transaction token last longer than a conventional transaction token. Besides, to develop an ecosystem that would make the collectibles meaningful blockchain, is quite difficult.

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is it Possible to find other applications for ERC-721?

Many cryptomnesia believe that this standard can be used not only for collecting.

For example, using a unique token you could store birth certificates, diplomas, contracts and proof of identity. To tokenservice you can even art and property.

How to create unique tokens?

Every developer can make a project completely from scratch, but it pays to use ready-made standard solutions.

At the moment, the development of decentralized applications is a rather expensive process which at the stage of release may not be recouped. Besides issuing its own unique token leads to confusion on the stock market.

Aptar Newsroom

The easiest way to follow a single standard ERC-721 or . The latter, incidentally, provides all the necessary tools for those who do not have deep knowledge in blockchain or programming.

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