Understanding Ethereum Token Standards: ERC-20, ERC-721, and ERC-1155

Delve into the world of blockchain, cryptocurrencies, and decentralized technologies with a focus on Ethereum token standards ERC-20, ERC-721, and ERC-1155. Learn about the differences between fungible and non-fungible tokens, smart contracts, and examples of popular tokens in the space. Explore how these standards facilitate token integration across different networks and their functionalities.

• Blockchain
• Cryptocurrencies
• Ethereum
• Token Standards
• ERC

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1. Blockchain, Criptomoedas & Tecnologias Descentralizadas Introdu o ao Hyperledger Fabric Padr es ERC Prof. Dr. Marcos A. Simplicio Jr. mjunior@larc.usp.br Pedro H. Barcha Correia - pedro.correia@usp.br Escola Polit cnica, Universidade de S o Paulo

2. Padres ERC ERC: Ethereum Token Standards Padr es de tokens que definem uma interface n o apenas para os tokens em si, mas tamb m para algumas de suas funcionalidades b sicas, como emiss o, queima e transfer ncia. Facilitam a integra o com outras redes que adotem tokens com o mesmo padr o

3. Padres ERC ERC: Ethereum Token Standards Padr es de tokens que definem uma interface nica Facilitam a integra o com outras redes que adotem tokens com o mesmo padr o ERC Interface para tokens ERC-20

4. Padres ERC

5. Padres ERC - Comparao ERC-20 ERC-721 ERC-1155 Fung veis (FT) N o fung veis (NFT) Multitoken (FT e NFT) Tokens Um por tipo de token Um por token Um para qualquer token, fung vel ou n o Contratos Inteligentes Binance Coin, USDC Decentraland Adidas Metaverse Exemplos

6. Padres ERC - Comparao ERC-20 ERC-721 ERC-1155

7. Blockchain, Criptomoedas & Tecnologias Descentralizadas Introdu o ao Hyperledger Fabric Padr es ERC Prof. Dr. Marcos A. Simplicio Jr. mjunior@larc.usp.br Pedro H. Barcha Correia - pedro.correia@usp.br Escola Polit cnica, Universidade de S o Paulo

8. Referncias Token Standards: ERC20 vs ERC721 vs ERC1155 (2022). URL: https://www.leewayhertz.com/erc-20-vs-erc-721-vs-erc-1155/ ERC-20 Token Scenario. Reposit rio de Exemplos do Fabric. URL: https://github.com/hyperledger/fabric-samples/blob/main/token-erc- 20/README.md ERC-721 Token Scenario. Reposit rio de Exemplos do Fabric. URL: https://github.com/hyperledger/fabric-samples/blob/main/token-erc- 721/README.md ERC-1155 Chaincode. Reposit rio de Exemplos do Fabric. URL: https://github.com/hyperledger/fabric-samples/tree/main/token-erc-1155 Function declaration syntax: things in parenthesis before function name (2016). URL: https://stackoverflow.com/questions/34031801/function-declaration-syntax- things-in-parenthesis-before-function-name (sugest o: ver segunda resposta)

9. Referncias Context. Go. URL: https://pkg.go.dev/context Documenta o da SDK do Fabric para Go. URL: https://hyperledger.github.io/fabric-chaincode-node/release-2.2/api/fabric- shim.ChaincodeStub.html Tutorial: No es b sicas sobre os certificados de chave p blica X.509. Microsoft. URL: https://learn.microsoft.com/pt-br/azure/iot-hub/tutorial-x509- certificates Informa es sobre CSR (2022). Documenta o do Fabric. https://hyperledger- fabric-ca.readthedocs.io/en/release-1.4/users-guide.html