tag: blockchain

13 September 2021

Using MerkleTree for Blockchainized Document Certification

As a freelance I worked on document certification using blockchain. I received several similar requests, but one of them required the implementation of a new data structure: Merkle Trees.

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12 September 2021

Ethereum Use Case: Document Certification

As a freelance, I worked on documents certification using the Blockchain. This is an interesting problem because it is a type of feature that we could not implement in a trustless way before.

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3 February 2021

Which protocols and algorithms should you learn to understand Bitcoin?

Innovations from Bitcoin and Blockchain-related technologies have given birth to a new species of distributed systems. Today, these distributed systems are entirely decentralized.
On the technical side, the field is exploding with innovation. It can be hard to keep track as each week new discussions, algorithms, and projects pop up.

So, as a developer, how do you get started with Blockchain? Where to start to understand these technologies? And which algorithms should you learn to create your own blockchain, or dig into the existing ones?

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2 February 2021

Where and how application data is stored in Ethereum?

Ethereum is used to build decentralized applications, a.k.a. DAPPs. These applications exist through small programs that live on the Blockchain, called smart contracts.

Before jumping into the platform and writing a smart contract, it’s really important to understand where your application data is stored. Code execution, servers and programming language are rarely critical to the design of an application. But data –its structure and its security– will constrain our design the most.

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1 February 2021

Beyond the Buzzword: The Problem Blockchain Actually Solves for Developers

Blockchain-related technologies are in full-hype mode these days. The first time I came across the b-word, I had a déjà-vu from the 2010s hype around “NoSQL”. But what is the point of the Blockchain, exactly?

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8 January 2018

How Blockchain Systems interact with APIs and the Cloud?

Blockchain Systems are supporting more and more innovations. From digital currency to supply chain tracking or artist platforms.

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6 November 2017

Three essential tools to develop a DApp on the Ethereum Blockchain

Blockchain technologies such as Bitcoin or Ethereum are used to set up currencies, called cryptocurrencies, but this is not the only purpose.

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23 October 2017

How Proof Of Work works and why try to get rid of it?

We hear a lot about Proof Of Work and Proof Of Stake. And It’s hard to talk about Blockchain Platforms like Bitcoin and Ethereum without getting into mining.

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16 October 2017

How to implement a Blockchain Structure?

We saw the use of Blockchain Structures in Decentralized Consensus Systems. And we even detailed how these structures prevent data tampering.

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8 October 2017

What is the use of Proof Of Work and Proof Of Stake algorithms?

The Ethereum project is in the process of getting rid of the Proof Of Work Algorithm.

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29 September 2017

How Blockchain Structures Prevent Data Tampering?

Blockchain Structures are central to systems such as Bitcoin and Ethereum. They are one of the three pillars of Decentralized Consensus Systems.

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