Blocks: The George Levy Blog

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What is a Merkle Tree in Bitcoin? And how do you find the Merkle Root? These two questions were asked by one of the students of the Blockchain and Bitcoin Fundamentals course. In this video I explain what is a Merkle Tree as well as what the Merkle Root are, and why they are so important to preserving the integrity of the Bitcoin blockchain. As you will see in the lesson, it is possible to create a blockchain without using a Merkle Tree, but in the case of Bitcoin, it is a very important element. This video segment is available...

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In this interview I led at The North American Bitcoin Conference, I had the opportunity to speak with Arwen Smit, CMO for DOVU. During our interview, Arwen describes how DOVU is using DOV, an ERC-20 blockchain token running on Ethereum, to reward and incentivize travelers for sharing data and changing their travel behaviors. This interview first appeared on https://Bitsonline.com Note: This interview is being presented for educational purposes only to show the innovative use of blockchain technology by DOVU. It does not constitute an endorsement of the company nor investment advice.

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One of the students enrolled in my Blockchain and Bitcoin Fundamentals course asked me: “How can you audit transactions in a Blockchain?” In this video, recorded in the beautiful island of Curaçao, I answer the question and explain how you can review transactions on the Bitcoin blockchain. While I present the lesson, I take you along on a trip into the history of Bitcoin to revisit the first retail purchase ever made using Bitcoin. Have you ever needed to audit a Bitcoin transaction? Let me know in the comments below!

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