Deploy Contract With Custom Metadata Hash
When you deploy a Solidity contract the compile has removed the comments from the bytecode, but the last 32 bytes of the bytecode is actually a hash of: hashed bytecode compiler…
December 28, 2024
When you deploy a Solidity contract the compile has removed the comments from the bytecode, but the last 32 bytes of the bytecode is actually a hash of: hashed bytecode compiler…
December 28, 2024

While testing a project using hardhat and Echidna I was able to run all tests in the project with echidna-test . but was not able to run tests in a specific contract that…
January 9, 2023

UPDATE: Check out the @0xdoublesharp/unsafe-math module available on NPM for an easy to use, prepackaged, and tested version of this library! UnsafeMath is a Solidity library…
July 21, 2022

The perceived value of many NFTs is based on that item's rarity making it ideal to mint them fairly. Rarity snipers and bad actors on a team can scoop up rare items from a…
February 17, 2022

A Verifiable Delay Function (VDF) is a linearly computed function that takes a relatively long time to calculate, however the resulting proof can be verified to be the result of…
February 7, 2022

Create an Alpine Linux image to run the lachesis node for the Fantom cryptocurrency. FROM alpine:latest as build-stage ARG LACHESIS_VERSION=release/1.0.0-rc.0 ENV…
April 30, 2021

Realtime Updates from the Syscoin Blockchain You can use the ZMQ topic message queues in Syscoin to receive realtime updates for your application. Using in conjunction with…
July 13, 2018

Getting Started You will need to have syscoind or Syscoin Core Qt running on your system and have node/npm installed. If you don't have Node.js I recommend installing it via nvm.…
July 13, 2018

Or, How I Learned To Stop Worrying and Love the Command Line Before we start - please read this post fully! It will only take a few minutes, and you will feel much more…
May 27, 2018

Build Scripts Use the following commands to compile Syscoin 3.0 on a variety of operating systems. These scripts will prepare your system with the proper build tools and install…
May 15, 2018

Oh no! If you set up your Syscoin masternode with a hot wallet (by importing a private key for your collateral transaction) then you have put your syscoins at great risk! A flaw…
May 11, 2018

This is a setup guide for creating a Syscoin 3.0 Masternode. You will need a Virtual Private Server (VPS) from hosting providers such as Amazon EC2, DigitalOcean Droplets, Google…
May 7, 2018