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1. ethereum-getting-started ethereum-getting-started Public

   JavaScript

2. tezos-getting-started tezos-getting-started Public

   Getting started with Tezos (installation, first smart contract)

   JavaScript

3. ethereum-hands-on ethereum-hands-on Public

   Hello World for Ethereum with Web3.js

   JavaScript

4. Check Ethereum signature, server sid... Check Ethereum signature, server side, in Java with web3j

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   import org.web3j.crypto.Keys;

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   import org.web3j.crypto.Sign;

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   import java.math.BigInteger;

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   import java.security.SignatureException;