yrong / offline_transfer.js

Created May 15, 2025 02:34 — forked from xcaptain/offline_transfer.js

sign transaction offline and then submit to chain

	const { ApiPromise, WsProvider } = require('@polkadot/api');
	const { Keyring } = require('@polkadot/keyring');
	const {
	construct,
	decode,
	deriveAddress,
	getRegistry,
	methods,
	PolkadotSS58Format,
	} = require('@substrate/txwrapper-polkadot');

yrong / ECDSA.sol

Created December 13, 2022 17:58 — forked from BjornvdLaan/ECDSA.sol

Verification of externally created ECDSA signatures in Solidity

	pragma solidity ^0.4.24;


	contract ECDSA {

	function verify() public returns (bool) {
	bytes32 message = ethMessageHash("TEST");

	bytes memory sig = hex"bceab59162da5e511fb9c37fda207d443d05e438e5c843c57b2d5628580ce9216ffa0335834d8bb63d86fb42a8dd4d18f41bc3a301546e2c47aa1041c3a1823701";
	address addr = 0x999471bb43b9c9789050386f90c1ad63dca89106;

yrong / launch.json

Created September 15, 2022 10:36 — forked from 0xGabi/launch.json

VSCode configuration to debug using hardhat in a monorepo

	{
	"version": "0.2.0",
	"configurations": [
	{
	"type": "node",
	"request": "launch",
	"name": "hardhat test",
	"skipFiles": ["<node_internals>/**"],
	"runtimeExecutable": "${workspaceFolder}/packages/hardhat/node_modules/.bin/hardhat",
	"args": ["test", "--network", "localhost"],

yrong / gist:1429624608a701bf6109b2bd4ec30816

Created August 31, 2022 14:57

settings.json

	{
	"solidity.packageDefaultDependenciesContractsDirectory": "",
	"solidity.packageDefaultDependenciesDirectory": "scripts/evm/node_modules"
	}

yrong / gist:7c31bc1077f506cf657ad8d8574d740b

Created August 31, 2022 14:53

launch.json

	{
	// Use IntelliSense to learn about possible attributes.
	// Hover to view descriptions of existing attributes.
	// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
	"version": "0.2.0",
	"configurations": [
	{
	"type": "lldb",
	"request": "launch",
	"name": "Debug executable 'parallel'",

yrong / gist:5d2319e62a0650178fec4f93ba722f16

Created July 7, 2022 08:53

	var InterfacePayroll = = artifacts.require("./InterfacePayroll");
	var EmployeeStorage= = artifacts.require("./EmployeeStorage");
	var Token= = artifacts.require("./Token");
	var Payroll = = artifacts.require("./Payroll");
	module.exports = function(deployer) {
	deployer.deploy(InterfacePayroll );
	deployer.deploy(EmployeeStorage);
	deployer.deploy(Token);
	deployer.link(InterfacePayroll ,Payroll );
	deployer.link(EmployeeStorage,Payroll );

yrong / tmux-cheatsheet.markdown

Created June 29, 2022 14:02 — forked from MohamedAlaa/tmux-cheatsheet.markdown

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

yrong / gist:df853cb794b0a2d244069d749b450ce0

Created June 22, 2022 09:39

Diamond

	// SPDX-License-Identifier: MIT
	pragma solidity ^0.8.0;

	/******************************************************************************\
	* Author: Nick Mudge <[email protected]> (https://twitter.com/mudgen)
	* EIP-2535 Diamonds: https://eips.ethereum.org/EIPS/eip-2535
	*
	* Implementation of a diamond.
	/******************************************************************************/

yrong / gist:13afd20937e31430e95228604241ed70

Created June 17, 2022 06:11

add debug info to substrate node

https://github.com/paritytech/substrate/issues/11604#issuecomment-1150974582

yrong / manual.rs

Created July 31, 2021 17:06

consensus-manual-seal

	use std::sync::Arc;

	use asgard_runtime::Header;
	use polkadot_service::{FullBackend, LongestChain};
	use sc_client_api::ExecutorProvider;
	pub use sc_consensus_aura::{ImportQueueParams, StartAuraParams};
	use sc_consensus_manual_seal::InstantSealParams;
	use sc_consensus_slots::SlotProportion;
	use sc_service::{error::Error as ServiceError, Configuration, PartialComponents, TaskManager};
	use sc_telemetry::{Telemetry, TelemetryWorker, TelemetryWorkerHandle};

Ron yrong

tmux shortcuts & cheatsheet