Overview of 0x1
When I started ETF Intelligence Contract Development, I first faced a choice, Hardhat Vs Truffle Vs Remix, which development tool should I choose. I searched Google for a lot of comparisons, including Holliville Valdez's " Hardhat Vs Truffle Vs Remix - Which Is The Best For Blockchain Development?>
This article helped me ...
Posted by hiroshi_satori on Sun, 06 Mar 2022 18:54:16 +0100
Smart contract overview
Smart contract is the software running on the blockchain. It is often compared to "vending machine", because it is easy to understand: the vending machine accepts and executes external instructions. When the customer selects the goods and pays, the vending machine will release the goods to the customer without ...
Posted by HughbertD on Sat, 26 Feb 2022 17:26:06 +0100
The first article of stepping on the pit writes the example given on the official website, which records how to test your Contract Caliper version is v0 four point two
In this article, we continue to use Github Repo on the official website to create a new contract. In order to simplify, we still use Sample to change the ...
This article was written in December 2018
Ethereum learning day1
demo of blockchain principle
Use geth to build your own private chain (single node)
Please install geth first and add geth to the environment variable
1. In a directory, take C:\Users\yqq\eth\persondata as an example ...
Posted by ljzxtww on Tue, 08 Feb 2022 04:38:22 +0100
A large number of articles on the Internet have introduced ECDSA (elliptic curve encryption) algorithm to generate Ethereum public-private key pairs, and then generate a unique Ethereum address. Most of them mentioned that the uncompressed public key generates the address by hashing first, and then the last 40 bits are the address. However, I m ...
Posted by lalloo on Tue, 18 Jan 2022 04:41:54 +0100
The sole purpose of RLP (Recursive Length Prefix) coding is to solve the problem of structure coding. The two structures of RLP coding design are: String and List. They are defined as follows:
String Refers to a string of bytes, corresponding to Go In language string/byte/uint/uint/[N]uint etc.
List Specified ...
Posted by phpQuestioner on Sat, 15 Jan 2022 12:55:55 +0100
0x take Limit Order of protocol analysis
As for the question of what 0x is, I won't be verbose here. There are many documents explaining the basic concepts. Here we mainly show the listing and eating process of limit order. 0xprotocol Process Overview Explanation of some problems in 0x
0x limit order hanging order eating order process
Posted by aaaaCHoooo on Sun, 02 Jan 2022 05:31:27 +0100
JD Chain intelligent contract system consists of five parts: contract code language, contract engine, contract account, contract development framework and contract development plug-in.
Contract code language is a programming language used to write smart contracts. Contract engine is a virtual machine that inter ...
Posted by social_experiment on Sat, 01 Jan 2022 08:30:28 +0100
err="authentication needed: password or unlock"Error: authentication needed: password or unlock undefined
Object has no number say: hello.say() cannot be called
miner is needed at this time To dig the mine (bookkeeping)
A Contract appears mined ! hello.say()
Construction of development environment
Posted by tomdelonge on Mon, 06 Dec 2021 19:29:17 +0100