How to use CouchDB wallet in Fabric Node SDK

When an application interacts with a Hyperledger Fabric network, the Fabric node first verifies the identity of the application, that is, whether the certificate held by the application allows access to the Hyperledger Fabric network.In Hyperledger, these identities are stored in the wallet.In this tutorial, we will show you how to use a CouchD ...

Posted by andrewgarn on Sun, 09 Feb 2020 20:49:30 -0800

JavaScript only needs 200 lines of code to develop blockchain

Implement a simple blockchain with JavaScript development. Through this development process, you will understand what blockchain technology is: blockchain is a distributed database, and the storage structure is a growing linked list, which contains many orderly records. However, in general, when we talk about blockchain, we also talk about ...

Posted by kylebragger on Mon, 03 Feb 2020 05:14:03 -0800

Only 180 lines of code are needed to develop blockchain with Go language

What language does blockchain development use? Through this article, you will use go language to develop your own blockchain (or build blockchain with go language), understand how hash function keeps the integrity of blockchain, master how to create and add new blocks with go language programming, realize multiple nodes to generate blocks th ...

Posted by chalexan on Mon, 03 Feb 2020 05:13:46 -0800

Java only needs 150 lines of code to develop blockchain

The purpose of this paper is to understand what blockchain is through Java practical development tutorial. We will develop a very basic blockchain by self-study in Java through practical learning, and on this basis, we can expand such as web framework applications. This basic Java blockchain also implements a simple workload proving system. ...

Posted by Ixplodestuff8 on Mon, 03 Feb 2020 04:52:35 -0800

Encryption protection of data on super ledger Fabric chain

Hyperledger Fabric is one of the most popular blockchain development frameworks. It has unique positioning and some distinctive features, such as licensing architecture, pluggable components, channels supporting private transactions, modularity and scalability, so it is suitable for the development of enterprise alliance chain applications. In ...

Posted by regoch on Sun, 02 Feb 2020 04:35:21 -0800

Ant blockchain lesson 20: trustworthiness certification judicial chain from entry to implementation

1. summary The technology builders of Hangzhou Internet court and judicial blockchain platform are ant financial services blockchain. Then, with the help of ant's technical ability and service ability, how to quickly connect with the superior's legal chain, so as to facilitate the subsequent opening ...

Posted by stiano on Sat, 01 Feb 2020 05:19:13 -0800

[blockchain] Tendermint - local single node deployment

Tendermint Due to work reasons, I began to contact Hyperledger Fabric two years ago, and its community is still very active. It has developed from v0.7 in that year to v2.0 now. But I have to say that Fabric's consideration is still very big, which is difficult for secondary development. So recently, ...

Posted by dayang on Wed, 29 Jan 2020 03:26:18 -0800

Wallet development experience sharing: omniUSDT

omni USDT To understand the tokens of the omni protocol in depth, you must first understand the history of the omni protocol. Please refer to Understanding the omni protocol -- USDT . BTC itself is a cash system and does not support smart contracts. In order for BTC to support smart contracts, omni public chain is developed on top of BTC, so o ...

Posted by Vorotaev on Tue, 21 Jan 2020 01:48:18 -0800

Enterprise Ethereum Besu introductory course [original Pantheon]

Besu is the enterprise Ethereum product in Hyperledger, and its biggest advantage is that it is compatible with the Ethereum main network. This tutorial describes how to use Hyperledger Besu to quickly start an enterprise Ethernet network and use JSON RPC for data query and transaction submission, and how to use Truffle to develop enterprise Et ...

Posted by pessi on Thu, 16 Jan 2020 19:06:45 -0800

Alibaba cloud ant contract experience chain Quick Start

Summary Alibaba cloud ant blockchain provides a contract experience chain, which is convenient for users to quickly experience the blockchain, and can quickly test and experience the functions of the blockchain free of charge. The following describes the use of contract experience step by step from three aspects: portal creation and related con ...

Posted by flashman on Fri, 10 Jan 2020 06:38:44 -0800