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# System prepended metadata

title: smart contract journey

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# smart contract journey 

請放名字 有聯繫方式更好 會得跟想學的

## Kenneth 
1. solidity 
2. openzeppelin
3.  erc20
4.  erc721
5.  erc1155
6.  erc777
7.  ico
8.  Multi Sig Wallet
9.  Verifying Signature
10.  TheGraph
11.  nft Lazying minting
12.  Vesting

想學:
 1. stacking 
 2. crosschain 


https://dev.to/envoy_/upgradable-erc-20-smart-contract-part-1-5433

https://dev.to/yakult/tutorial-write-upgradeable-smart-contract-proxy-contract-with-openzeppelin-1916


