dendisuhubdy

from web3 import Web3, HTTPProvider
from eth_utils import encode_hex, event_signature_to_log_topic
from eth_abi import encode_single


w3 = Web3(HTTPProvider('http://127.0.0.1:8545', {'timeout': 120}))
transfer_topic = encode_hex(event_signature_to_log_topic('Transfer(address,address,uint256)'))


def get_tokens(address):

dendisuhubdy

import requests
import click


LTO_NODE_URL = 'http://127.0.0.1:6869'
LTO_API_KEY = '<your api password>'


s = requests.session()
s.headers['X-API-Key'] = LTO_API_KEY

dendisuhubdy

# 1. generate keys with `lighthouse account validator new random N`
# 2. run `python deposit.py`, it skips the ones already deposited and deposits the rest

import json
import sys
from pathlib import Path
from getpass import getpass
from eth_utils import encode_hex, decode_hex
from web3 import Web3
from web3.middleware import construct_sign_and_send_raw_middleware

dendisuhubdy

import EIP712Domain from "eth-typed-data";
import BigNumber from "bignumber.js";
import * as ethUtil from 'ethereumjs-util';
import { ethers } from "ethers";
import axios from "axios";

/*
 * Safe relay service example
 * * * * * * * * * * * * * * * * * * * */

dendisuhubdy

Decentralized Web Wallets

After reading about current options for secure browser storage for wallets, https://www.rdegges.com/2018/please-stop-using-local-storage/

I think I understand the tradeoffs of the different approaches, which is helping me write my own web wallet (called Democracy), currently for Ethereum.

I'd like to check my understanding here. Any feedback appreciated below in comments.

dendisuhubdy

[
    {
        "constant": true,
        "inputs": [],
        "name": "name",
        "outputs": [
            {
                "name": "",
                "type": "string"
            }

dendisuhubdy

// SPDX-License-Identifier: MIT
// Copyright (c) 2020 petejkim

pragma solidity 0.6.12;

import { Ownable } from "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v3.2.0/contracts/access/Ownable.sol";
import { IERC20 } from "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v3.2.0/contracts/token/ERC20/IERC20.sol";
import { SafeERC20 } from "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v3.2.0/contracts/token/ERC20/SafeERC20.sol";

contract USDCFaucet is Ownable {

dendisuhubdy

PLOTS_TMP_DIR=/mnt/scratch/plots
PLOTS_FINAL_DIR=/mnt/storage/plots

dendisuhubdy

// Created by Chih.Lun.Kang
// 網路上找的範例大部分都不能用，後來嘗試數次只有這方法可行
// 主網的appid => 539ab33xxxx，要去Infura申請，在上面建立一個project
// ####  NOTE  #### : 要特別注意本身轉帳的帳號要儲備足夠數量的 eth 跟 btc 
// ####  注意  #### : 目前使用人工轉換儲值手續費，建議在幣價好的時候一次換匯才划算

const USDTJSON = require('./build/contracts/USDT.json')
const Web3 = require('web3')
const Tx = require('ethereumjs-tx').Transaction

dendisuhubdy

echo "As of October 18, 2018 this script works with this image:"
echo "http://cdimage.kali.org/kali-weekly/kali-linux-2018-W41-amd64.iso"
echo
echo "If you are using a different version you will have to change the variables kbuild, headers1, headers2, and server"
echo
echo "Look in /lib/modules to find out what version of Kali you need to search for."
echo

proc=$(uname -r|sed 's,[^-]*-[^-]*-,,')