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by AlienRobot 219 days ago
You only need the hash of the original content. No blockchain is necessary. The problem is that there is no source for that hash except for the scraper that archives it since people don't put the hash in a hyperlink.

If you download an ISO for a Linux OS for example, they give you the hash of the file so you can check it. They don't build an entire blockchain whatever to validate the hash.