Indexing and Querying Revoked Verifiable Credentials
Due to its immutability and censorship resistance, the Blockchain seems to be a suitable place to manage identities and credentials. However, querying the data on
Juli 1, 2022
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Improving Scalability and Privacy of Blockchains: 2022 Update on Zero-Knowledge Proofs
This article serves as an overview of current Zero-Knowledge Proof (ZKP) implementations in the crypto space and discusses what to expect from ZKP as an
Mai 18, 2022
Getting Started with Blockchain Developement: Pros and Cons of Tatum vs. Moralis
Blockchain development and the development of decentralized apps (Dapps) has changed over the past 5 years. When I started with crypto in 2017, Ethereum had
Februar 25, 2022
Das Potenzial von Selbstsouveränen Identitäten am Beispiel der Energiewirtschaft
Warum SSI? Bisherige Lösungen für das Managen von Identitäten sind gekennzeichnet von Datensilos, die einerseits jeder Diensteanbieter mit hohem Aufwand selbst betreibt — oder andererseits
November 22, 2021
Exploring IOTA 2.0 Smart Contracts in a Private Network: Developing a Prediction Market
Abstract — Smart contracts are being introduced to IOTA, which has proposed an interesting take on distributed ledgers by proposing the Tangle. The Tangle promises
September 17, 2021
Kusama Validator Node Setup
A short time ago, we as 51nodes decided to host our own Kusama Validator. This article will help you to understand how you can set
Mai 11, 2021
Epirus Chain Explorer for Quorum
Using Helm Charts to set up the Epirus Chain Explorer and connect it to a running Quorum network. Some weeks ago we published an article in which
April 16, 2021
Kusama & Polkadot: Build an application specific Blockchain and launch a Parachain!
Note: This article provides a general and slightly technical introduction to Parachains and indicates how to get started building a Substrate based blockchain which can
Februar 18, 2021
Quorum Kubernetes Templates
Setting up a dynamic raft based Quorum network for development and testing using Helm. Motivation Following this informative article provided by my colleague Majd, in
Februar 1, 2021
Selectively Disclosed Verifiable Credentials
From Zero-Knowledge-Proofs to solutions for privacy-enhanced credentials. Introduction and Motivation Decentralized Identities (DIDs) and Self-Sovereign-Identity (SSI) are by now a pretty well-known topic in the
Dezember 2, 2020
Self-Sovereign Identity (SSI) as building block of the Crypto Economy
The term Self-Soverein Identity (SSI) will be omnipresent in the coming years. The entire development taking place in this area lays the foundation for our
November 24, 2020
Decentralized Identifiers based Interoperability Architecture
How the DID, VC and VP concepts can be used to achieve lightweight, scalable interoperability between different distributed ledger networks. Introduction Given the growing number
Oktober 30, 2020
Decentralized Schema Registry
DID method to identify and resolve data schemas TL;DR In this article, we introduce a new DID method that is used to identify and resolve
September 30, 2020
The role of blockchain in the context of hyperautomation
According to Gartner, hyperautomation is the number 1 technology trend in 2020. Everything that can be automated will be automated. Multiple tools and techniques including
Juli 24, 2020
RPC vs WebSocket Performance
A Comparison between WebSocket and RPC Connections in Web3js Following the build a minimal Quorum network article we decided to utilize the newly added WebSocket
Juni 23, 2020