For four years in a row, it has become the "favorite language for developers". Have you ever understood this programming language?

fn main() { println!("hello rust");} With the launch of Facebook's Libra project, Rust became the biggest project in the history of Rust, but with the rise of global digital currency, the journey of Rust may be just beginning. Although you may not know much about Rust, in the eyes of developers, it's really delicious! For four years in a r ...

Posted on Sat, 30 May 2020 06:08:29 -0400 by ucffool

Introduction to zero knowledge proof contract and application development of Ethereum

In this tutorial, we will learn how to develop a zero knowledge identification DApp based on Ethereum, how to develop a zero knowledge circuit of circle, how to generate and verify a solid zero knowledge smart contract, and how to generate zero knowledge evidence under the chain using Javascript, and provide a complete source code download at t ...

Posted on Fri, 29 May 2020 06:04:06 -0400 by Toonster

Use of Ethereum smart contract NodeJS/Web3

1, Overview Running environment: Node.js, npm, Truffle, Solidity, etc root@keke:~/go-ethereum# node -v v8.9.4 root@keke:~/go-ethereum# npm -v 5.7.1 solidity installation # npm install -g solc --save Install the development framework Truffle4 of solidity # npm install -g truffle --save Install the development client and simulat ...

Posted on Sun, 10 May 2020 23:35:58 -0400 by turtlekid8

How to realize a market collector

The research strategy, design strategy and back test analysis in program trading and quantitative trading are inseparable from the support of market data. It's not realistic to collect all the data on the market. After all, the amount of data is too large. For the digital money market, the inventor supports limited backtesting data of exchanges ...

Posted on Thu, 30 Apr 2020 01:56:08 -0400 by Fender963

How to realize a market collector

The research strategy, design strategy and back test analysis in program trading and quantitative trading are inseparable from the support of market data. It's not realistic to collect all the data on the market. After all, the amount of data is too large. For the digital money market, the inventor supports limited backtesting data of exchanges ...

Posted on Thu, 30 Apr 2020 01:52:05 -0400 by rincewind456

Interpretation of the technical point of aelf | implementation scheme of dividend contract interface

Profit contract: unified dividend management planoutlineBecause the main chain of aelf adopts DPoS consensus mechanism, it is an important part of the governance model of aelf to obtain rights and interests by holding tokens or locking positions. This creates a requirement: to implement a standard process that can manage dividends uniformly, a ...

Posted on Wed, 22 Apr 2020 06:52:47 -0400 by auro

Fabric smart contract - token transaction

1. Application scenario The token system needs to support the functions of new type token issuance, token transfer, quota query, token addition, token recovery, account freezing, warehouse locking, etc. After the token is issued, it will be transferred to the coinbase account. The coinbase account and the general account can transfer to each ...

Posted on Mon, 20 Apr 2020 10:37:33 -0400 by donbueck

Tron blockchain docking java development package [TronTool.Java]

The TronTool.Java development package is suitable for rapidly increasing the support ability of Tron/USDT-TRC20 digital assets for Java applications, that is, it supports the application scenarios using its own Tron blockchain nodes, and also supports the lightweight deployment scenarios based on the official public API services of Tron. Offici ...

Posted on Mon, 13 Apr 2020 03:04:47 -0400 by gethinw

How to build a blockchain

This article is translated from Learn Blockchains by Building One by @dvf , original link: https://hackernoon.com/learn-blockchains-by-building-one-117428612f46   On October 24 last year, blockchain was promoted to the national strategic position, and companies including traditional large enterprises and central enterprises have laid out ...

Posted on Tue, 07 Apr 2020 05:57:14 -0400 by adams0423

aelf Technical Point Interpretation | AEDPoS Contract Implementation Logic

In aelf's consensus contract standard, the five interfaces can be divided into three groups: For any node, a consensus command may be requested from the contract at any time; Nodes with valid block times obtain consensus data from the contract after the scheduler countdown ends and produce blocks based on this data. When a node adds a block to ...

Posted on Sat, 04 Apr 2020 02:23:40 -0400 by simonmlewis