Disclaimer/ Risk warning:

I am not a financial advisor and anything you read, see or hear in this site, podcast, video should not by any means be construed as financial advice it is purely intended for your entertainment and demonstration and illustrative purposes only.

This is not financial advice and should not be taken as financial advice. the views I have in everyone of my site/post/blog/links/text/documents/powerpoint/videos are completely speculative opinions and do not guarantee any specific result. The NFT, AltCoin, Metaverse, ... is extremely volatile and has high risk. You should never act on anyone's advice or opinions, without first doing your own research, realising your own risk, and making your own decision. I recommend speaking with a licensed and qualified professional before making any financial decision.


  • ^ Purchasing managers' indexes (PMI):

    • A PMI index over 50 represents growth or expansion within the manufacturing sector of the economy compared with the prior month.

  • ^ United States Philadelphia Fed Manufacturing Index

    • A value greater than 0 reflects growth in the manufacturing sector, whereas a value less than 0 reflects a contraction.

My token Tiziran (TIZ) on Solana

Token name

Tiziran (TIZ)

Token address


Token Tiziran

My token Tiziran (TIZ)

Token Contract Address


Token Decimal:



BNB Smart Chain Mainnet

only 100 token available to sell

Interface: minimum data and functions required to make it a standard ERC/EIP smart contract

_value the _ shows it is a parameters

Constant is a variable that can't be changed

Mapping() function maps elements from a key to a value

Constructor() function that automatically runs when a new data item is created( initialization code)

Emit() function triggers an event (message to be sent out)

  1. New project

    1. ./geth --syncmode "light"

    2. Mkdir

    3. Truffle init

Truffle deploy --reset

Truffle console

HelloWorld.deployed().then(function(instance) {return instance} );

HelloWorld.deployed().then(function(instance) {return instance.getHelloMessage()} );

npm install @truffle/hdwallet-provider

  1. LinkedIn

    1. Start 10.April.2022




      1. npm install truffle -g

    5. ERC-20 (500K)

    6. ERC721: Non-Fungible Tokens (NFT): 70K

    7. ERC1155: Multi-Token Tokens : 8K

    8. dApp

    9. Security:

  2. LinkedIn II


    2. solidity:

      1. docker run ethereum/solc:stable --help

      2. brew update

      3. brew upgrade

      4. brew tap ethereum/ethereum

      5. brew install solidity

4. Visual studio code: Name: solidity

Id: JuanBlanco.solidity

Description: Ethereum Solidity Language for Visual Studio Code

Version: 0.0.139

Publisher: Juan Blanco

VS Marketplace Link:

5. Online editor:


majority rules

validate transactions properly

computer nodes 51% consensus mechanisms

advantage proof of work:

  • anybody can attached machines and gain rewards

blockchain trilemma: 1- scalable/speed 2- decentralization secure

fastest: solana (arweave),


Hands on


1: install nvm: Node Version Manager

curl -o- | bash

nvm install 12

nvm use 12

nvm alias default 12

npm install npm --global # Upgrade npm to the latest version

2. install hardhat: Ethereum development environment for professionals

npm install --save-dev hardhat



  1. Coin Bureau: : TOP 5 Virtual Land NFTs!! BEST Metaverse Plays?? 🚀 #metaverse #land #crypto

    • sandbox

    • metaverse group buy decentraland: 2.43 M$

    • : cryptopunks, the sandbox, decentraland, cryptovoxels, somnium space, superworld, arcona. OVR

Top 5 Land

        1. bitcountry

          • create and personalise metaverse

        2. aavegotchi


    • it is virtual world in ethereum 2011 - 2018 -

    • open metaverse - the sandbox alpha - 29.11 to 20.12.21

    • require the sandbox (SAND) ~ 5$ (17.12.21) ~2.73$ (22.April.2022) ~0.58 (14.11.22)

  2. learn:

  3. learn:

  4. AI meta:

  5. Metaverse, Mesh, Open AI and more from Microsoft Ignite Fall 2021:

crypto 18.12.21 - 22.April.2022

  • Decentraland (MANA): ~3$ - ~2.03$ (22.April.2022)

  • sandbox (SAND): ~ 5$ - ~2.73$ (22.April.2022)

  • Axie Infinity (AXS): ~95$ - ~45.65$ (22.April.2022)

  • illuvium (ILV) : ~1136$ - ~514.98$ (22.April.2022)

  • star atlas price (ATLAS) base on solana : ~0.10 - ~0.023$ (22.April.2022)

  • wilder world (wild): ~3.67$ - ~1.15$ (22.April.2022)

  1. bitCoin : revolution to currency,

  2. DeFi, ethereum

  3. NFT

  4. Metaverse