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Alex Roan
Alex Roan

1.8K Followers

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Published in Geek Culture

·Pinned

Hitchhikers Guide to the EVM

Gas Golfing by Optimizing Storage — This article is a write-up of a talk presented at SmartCon #1. Gas golfing is the process of optimizing the existing functionality of a smart contract without actually changing what it does. Specifically, optimising a contract’s use of storage is where some of the biggest wins can be found. With…

Solidity

7 min read

Hitchhikers Guide to the EVM
Hitchhikers Guide to the EVM
Solidity

7 min read


Published in The Startup

·Pinned

How to Survive a Crypto Bull Run

The do’s and don’ts — “It’s super exciting right now. Prices will likely never be as low as they were just a few months ago. The more I analyse the trends, the more I am confident that I know where Bitcoin is going. The news consistently speaks of institutional investment, and it’s clear to me…

Bitcoin

12 min read

How to Survive a Crypto Bull Run
How to Survive a Crypto Bull Run
Bitcoin

12 min read


Mar 16, 2021

Discrete Math 1: Set Theory

Cheat Sheet — 1. Definitions // Set A contains elements 1,2 and 3 A = {1,2,3} // 2 is an element of A 2∈A // 4 is not an element of A 4∉A 2. Number Sets Naturals N = {1,2,3,4,...} Integers Z = {...,-2,-1,0,1,2,...} Rationals Q = Ratio of 2 integers. example…

Mathematics

4 min read

Discrete Math 1: Set Theory
Discrete Math 1: Set Theory
Mathematics

4 min read


Feb 7, 2021

Dev Log: 1

Validating for Staleness — Originally Written: Early February 2021 2020 was a huge year for us at Chainlink, and 2021 is lined up to be even bigger. We’re getting so much done, and there’s so much more to be done. Often, I struggle to take a step back and appreciate the cool things I…

Blockchain

4 min read

Dev Log: 1
Dev Log: 1
Blockchain

4 min read


Published in Coinmonks

·Oct 26, 2020

Tweether Governance Protocol

The Math Behind The Madness — Recently, Patrick Collins and I entered into the EthGlobal hackathon and created Tweether, an on-chain governance protocol that anyone can use to submit and vote on tweets. When we were planning the project, we split the work into two parts: The governance protocol, for which I was responsible for. And…

Blockchain

9 min read

Tweether Governance Protocol
Tweether Governance Protocol
Blockchain

9 min read


Published in Coinmonks

·Oct 4, 2020

What’s Going On With Smart Contract Governance?

Does it work yet? — The 18th of September was like any other day for the first few hours. Get up, have breakfast, check Twitter… wait, why is Uniswap trending? It didn’t take long to discover the reason for the explosion in Uniswap tweets was due to the sudden announcement of Uniswap’s own token: $UNI…

Ethereum

4 min read

What’s Going On With Smart Contract Governance?
What’s Going On With Smart Contract Governance?
Ethereum

4 min read


Published in Better Programming

·Jul 30, 2020

How to Retrieve Price Data in Smart Contracts

Get crypto prices in a single function call — The price of a LINK token has all but doubled in the past month, moving from around a steady $4 to a whopping $8 in a very short time. This is in no small part down to the Chainlink Oracle network, which provides a platform to call any external API…

Programming

4 min read

How to Retrieve Price Data in Smart Contracts
How to Retrieve Price Data in Smart Contracts
Programming

4 min read


Published in Better Programming

·Jul 15, 2020

How to Supply Assets to the Aave Protocol Programmatically

Earn interest using the Aave protocol: a JavaScript tutorial — Editor’s note: This article is provided for entertainment and educational purposes only and is not intended as financial advice. Any investment actions taken related to or referencing this article are solely your own and by continuing to read this, you implicitly agree to such terms. Prerequisite: This walkthrough assumes a…

Blockchain

5 min read

How to Supply Assets to the AAVE Protocol Programmatically
How to Supply Assets to the AAVE Protocol Programmatically
Blockchain

5 min read


Published in Better Programming

·Jul 13, 2020

How to Call APIs From Ethereum Smart Contracts

Find and use oracles to retrieve off-chain data in your smart contracts — Due to the nature of blockchain ecosystems, accessing off-chain data from on-chain smart contracts is not natively possible. However, Chainlink provides a platform for blockchain oracles, which are nodes on the network that act as a bridge between on-chain and off-chain data. Oracles enable smart contracts to retrieve data from…

Programming

6 min read

How to Call APIs From Ethereum Smart Contracts
How to Call APIs From Ethereum Smart Contracts
Programming

6 min read


Jul 10, 2020

What Are Friends Really For?

Choosing who we trust and share our lives with — Life is a balancing act. This applies to everything, especially when choosing who we share our lives with. Our innermost thoughts are sacred to us, but we cannot burden ourselves with them alone. We are social by nature, and having people we trust around us helps us share these burdens. …

Life Lessons

2 min read

What Are Friends Really For?
What Are Friends Really For?
Life Lessons

2 min read

Alex Roan

Alex Roan

1.8K Followers

Engineer at Chainlink Labs.

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