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John R. Kosinski

Ethereum Oracle Contracts: Can We Trust the Oracle?

By John R. Kosinski
The whole point of smart contracts is that they need to be more secure and efficient than traditional contracts. So where do smart contract oracles fit in? In the final installment of our three-part series, Toptal Blockchain Developer John R. Kosinski explains the role of oracles in the evolution of trust.
19 minute readContinue Reading
John R. Kosinski

Ethereum Oracle Contracts: Solidity Code Features

By John R. Kosinski
Solidity is the programming language of choice for Ethereum and the de facto industry standard for smart contract development. In the second article of our three-part series, Toptal Blockchain Developer John R. Kosinski takes a closer look at Solidity quirks and features, explaining how to make the most of it.
21 minute readContinue Reading
John R. Kosinski

Ethereum Oracle Contracts: Setup and Orientation

By John R. Kosinski
Oracles are changing the way we view and create smart contracts. How do we implement them in Ethereum, using nothing but Solidity and standard dev tools? In the first article of our three-part series, Toptal Blockchain Developer John R. Kosinski explains how to get started and compile a smart contract with oracles.
16 minute readContinue Reading
Gilad Haimov

How to Create an ERC20 Token the Simple Way

By Gilad Haimov
The humble ERC20 token specification has become the de facto standard for Ethereum tokens. If you come across an Ethereum smart contract, chances are it’s ERC20-compliant. In this guide, Toptal Freelance Ethereum Developer Gilad Haimov demonstrates how you can create and deploy your own ERC20 token in under an hour.
9 minute readContinue Reading

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