Lesson 3: "Time Stamp Server" Prove your transaction data

¿Por qué necesito esta lección?

So far, we have learned about the problems with the existing system and why the Bitcoin system is necessary. From this lesson, we will begin to learn about each element that makes bitcoin possible. We will study each element in detail, so please take the time to deepen your understanding.

Lo que aprenderá en esta lección

  • Proving the existence of data with a timestamp server

目次を表示する

Time-stamp server

The first mechanism for realizing Bitcoin is a timestamp server.

A timestamp server is a mechanism that automatically assigns a time to digital content when it is created.

Time-stamp servers themselves are not a particularly new technology, and are used in a variety of web services to prove that data did indeed exist at that time.

In the case of Bitcoin, a timestamp can be added to transaction data to prevent fictitious transactions from taking place.


As we learned in Lesson 2, each transaction in a chain of transactions is stored together with a timestamp that is assigned to every transaction.

Therefore, as the number of transactions increases, the credibility of the proof that the data existed in the past increases.


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Lesson 3: "Time Stamp Server" Prove your transaction data

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