Æternity State Channels: A Peer-to-peer Browser Game

Reading Time: 13 minutes

Æternity is a promising blockchain platform with great potential for many application scopes. One such great feature is the native support for state channels.

In this article we will explore how we built a peer-to-peer browser game to explore this Æternity capability; along examine related features of the platform such as ForgAE and companion tools and the Sophia functional contract development language

A Short Guide Through the Universe of Blockchain Based Micropayment Systems

Reading Time: 7 minutes

Micropayment take place in pay-as-you-go software service models, micro donations, and the Internet of Things (IoT). In these contexts payments for values which are usually under the smallest unit of fiat money (e.g. $0.001) are needed. Prepaid cards can solve this problem. Another approach uses cryptocurrencies in the blockchain, having the advantage of allowing exact […]

Dockerized Ethereum Private Testing Environment Compatible with MetaMask and Remix

Reading Time: 2 minutes

The purpose of this configuration is to generate a Docker environment of 2 nodes connected together running on Geth and monitor them using Ethstat (at localhost:3000). Then we can use MetaMask as well as Remix to connect to the first node (localhost:8545) to send simple transtractions, like sending Ether, or complex transactions like the creation or call of a smart contract.

Using the CardContact SmartCard USB HSM in an Ethereum PoA Chain

Reading Time: 4 minutes

After testing the performance of Ethereum using PoA, we tested the usability of the CardContact SmartCard-HSM USB token on an ethereum Proof of Authority network. The HSM allows to store and use multiple encryption keys, both RSA and Elliptic Curves (including secp256k1), for applications like issuing certificates as a CA, and with any application that […]

Some Insights into Cardano ´s Blockchain

Reading Time: 5 minutes

In this blog post, we present a high-level overview of the paper describing the Ouroboros Proof of Stake protocol implemented in Cardano´s blockchain. After the overview follow some comments about theoretical aspects of the protocol.
In general, Proof of Stake (PoS) consensus protocols elect the network nodes responsible to send the next block to the blockchain on the basis of the nodes’ amount of stake.

Dogethereum: A Decentralized Blockchain Bridge Between Dogecoin and Ethereum is Born

Reading Time: 2 minutes

The second stage of the Dogethereum bridge was presented on September 5, 2018 at 10 am (PT) and live streamed. The bridge uses “superblocks” to move coins from Dogecoin to Ethereum and collateralization to move coins from Ethereum to Dogecoin. We are excited because this innovation can also be used to bridge other blockchain pairs. […]