If you’ve been following crypto news over the past few months, you have probably heard the words Polkadot and Substrate. However, you might also be curious about what they are exactly, why they’ve been on the news so much and how relevant they are to your business. This article aims to give you a clearer […]
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 […]
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.
See our updated article: Algorand Block Explorer and CoinFabrik spin-off Randlabs. AlgoExplorer: A tool for retrieving human-readable data from the new Blockchain Algorand. As you probably know (or you should if you are in the crypto environment), there is a new blockchain right around the corner: Algorand. We are glad to have the opportunity to […]
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 […]
Lately, there has been a lot of talk about permissioned blockchains, in which only certain entities have the authority to validate transactions and generate blocks. The use of these technologies is currently highly required by different companies, since it allows them to store data in a decentralized way and show complete transparency in all their […]
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.
Prediction markets are a special kind of betting platforms that can be used for multiple purposes ranging from insuring a crop from bad weather to predicting the outcome of an event based on the wisdom of the crowd. Among other popular uses of prediction markets are hedging an investment, shorting the market, creating a futures […]
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. […]
Thanks to the invention of cryptocurrencies a new kind of financial product has been made possible, the crypto-backed loans. Following is a brief comparison of 10 platforms that providing access to it. As we can see by looking at the table the options vary greatly respect to the interest rates, platforms fees, and currencies accepted. […]
At CoinFabrik we are organizing internal presentations in response to interesting work we are doing. As we have grown, scheduling time to share our projects and ideas has become essential. Recent presentations have included: Decentralized Blockchain Bridges Last year Oscar Guindzberg, TrueBit, and CoinFabrik partnered to create a decentralized trustless bridge between Dogecoin and Ethereum […]
This article aims to extend the analysis of Bitcoin using Metcalfe’s Law performed by Cryptolab Capital on this article. Here, we are going to summarize some ideas and apply them to other major networks. We are going to update the analysis with Bitcoin to review some points and then, we are going to extend the […]