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    • Introduction to AI
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  • 📄Timestamping
    • Introduction to Blockchain and Timestamping
    • How does Timestamping work?
      • What is a hash?
    • Why use blockchain?
    • The Benefits of Blockchain Timestamping
    • The value of timestamping
    • What is the context in a timestamp?
    • Video: Timestamping On The Blockchain
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      • FileValidator Explained
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  1. Timestamping
  2. How does Timestamping work?

What is a hash?

The technology used by VIDT is built around something called a hash. A hash is like a unique digital fingerprint for a file. This fingerprint is calculated using the digital information, the 1s and 0s, that make up a file.

When VIDT creates a timestamp, it records the file's hash - its unique fingerprint - and not the file itself.

Here's the special thing about a hash: if you have the same file, you will always get the same hash. But, if you change even the smallest thing in the file, you'll get a completely different hash.

Privacy

Another important thing about a hash is that you can't use it to figure out what the original file was. It's a one-way thing. You can create a hash from a file, but you can't create a file from a hash.

This is why the VIDT timestamp is so valuable. When VIDT creates a timestamp, it records the file's hash - its unique fingerprint - and not the file itself. This hash is proof that the file existed at a specific point in time. This method is both efficient and good for privacy. It gives you a way to prove that a document existed, without having to share the document itself.

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Last updated 1 year ago

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