Records are grouped into blocks, which are combined into chains. Once data is on the blockchain, it cannot be altered or deleted without breaking the blockchain's integrity.

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Despite the difference in form, the principle of contactless payment remains the same for all devices. To pay, you need to bring your card or device to the terminal so they "meet" and exchange data. One second and it's done.

In an open blockchain, all tokens can be exchanged for identical ones, but in an NFT system, you cannot do that. If you have a bitcoin, for example, you can exchange it for another bitcoin identical to yours. NFT tokens are unique and cannot be swapped.
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The dream of almost every Internet user is to earn a certain sum of money on the Net with minimum effort. Sitting at home at the monitor screen, you press the buttons, and the money just flow into a virtual purse. Unfortunately, there are too many scammer...

As the experience of tests of fresh models shows, cars of premium brands have recently become closer to each other in character. The steering wheel is equally easy to turn everywhere. Touch-buttons and non-fixed gear-change lever operate with the same (...