eddmann

const fetchLatestBlock = () =>
  fetch(`https://blockchain.info/q/latesthash?cors=true`)
    .then(r => r.text());

const fetchMerkleRootAndTransactions = block =>
  fetch(`https://blockchain.info/rawblock/${block}?cors=true`)
    .then(r => r.json())
    .then(d => [d.mrkl_root, d.tx.map(t => t.hash)]);

const random = arr =>

bradtraversy

SSH Cheat Sheet

This sheet goes along with this SSH YouTube tutorial

Login via SSH with password (LOCAL SERVER)

$ ssh brad@192.168.1.29

Create folder, file, install Apache (Just messing around)

$ mkdir test

$ cd test

dabit3

import './App.css';
import { useState } from 'react'

import CeramicClient from '@ceramicnetwork/http-client'
import ThreeIdResolver from '@ceramicnetwork/3id-did-resolver'

import { EthereumAuthProvider, ThreeIdConnect } from '@3id/connect'
import { DID } from 'dids'
import { IDX } from '@ceramicstudio/idx'

farzaa

import './styles/App.css';
import twitterLogo from './assets/twitter-logo.svg';
import { ethers } from "ethers";
import React, { useEffect, useState } from "react";
import myEpicNft from './utils/MyEpicNFT.json';

const TWITTER_HANDLE = '_buildspace';
const TWITTER_LINK = `https://twitter.com/${TWITTER_HANDLE}`;
const OPENSEA_LINK = '';
const TOTAL_MINT_COUNT = 50;

Olanetsoft

Building and Deploying USDC-based Smart Contract

This workshop is targeted at developers who are transitioning from Web2 to Web3 or have just recently gotten into Web3 and are looking to have a well-rounded foundation.

Step 1

Let's ensure we have Node/NPM installed on our PC. If we don't have it installed, head over here for a guide.

Step 2

Olanetsoft

Series 1: Mara Blockchain Masterclass - Ghana

This workshop is targeted at developers who are transitioning from Web2 to Web3 or have just recently gotten into Web3 and are looking to have a well-rounded foundation.

This first workshop is Series 1 in the three-part series that aims to introduce you to the blockchain and how to build on the blockchain.

Olanetsoft

Decentralized Identity – Build a Profile with Next.js, Ethereum & Ceramic Network

In this workshop, you will learn about how to build a decentralized identity profile with Ethereum on Ceramic Networks.

Prerequisites

• To go through this tutorial, you'll need some experience with JavaScript and React.js. Experience with Next.js isn't a requirement, but it's nice to have.

• Make sure to have Node.js or npm installed on your computer. If you don't, click here.

Olanetsoft

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

import { AxelarExecutable } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/executable/AxelarExecutable.sol';
import { IAxelarGateway } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/interfaces/IAxelarGateway.sol';
import { IAxelarGasService } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/interfaces/IAxelarGasService.sol';
import { IERC20 } from '@axelar-network/axelar-gmp-sdk-solidity/contracts/interfaces/IERC20.sol';

contract ExecutableSample is AxelarExecutable {
    string public message;

Olanetsoft

// Axelar chains config https://github.com/axelarnetwork/axelar-contract-deployments/blob/d4b2a6ad23d3a24eaf5e94a5a2406e4a27c91431/axelar-chains-config/info/testnet.json#L1059
// Base Goerli test
const hre = require("hardhat");
const crypto = require("crypto");
const ITSContractABI = require("../utils/its/abi");
const tokenManagerMintBurnABI = require("../utils/its/tokenManagerMintBurnABI");

const MINT_BURN = 0;
const LOCK_UNLOCK = 2;

Olanetsoft

[
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "tokenManagerDeployer_",
        "type": "address"
      },
      {
        "internalType": "address",