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xtremetom
xtremetom

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Published in Coinmonks

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What I learned from building Cool Cats NFT

Solidity — seriously — Cool Cats is the second solidity contract I have ever published on the Ethereum blockchain, and I was a solidity noob through and through. We all have to start somewhere and I want to share my whole uncensored NFT journey with you. How it all started One day I spotted a cute pixel NFT…

Nft

10 min read

What I learned from building Cool Cats NFT
What I learned from building Cool Cats NFT
Nft

10 min read


Published in Coinmonks

·Sep 6, 2022

10 Simple Ways to Save Gas with Solidity

Below is a list of just a few simple ways you can save gas in solidity contracts. The full list is seemingly endless, but all boils down to finding the most efficient way to perform an action with the minimum number of operations. Table of contents State data vs bytecode data The power…

Solidity

5 min read

10 Simple Ways to Save Gas with Solidity
10 Simple Ways to Save Gas with Solidity
Solidity

5 min read


Published in Coinmonks

·Sep 2, 2022

Save Gas with Data Packing

Storage writes are expensive, write less Chances are you have interacted with a smart contract and thought — geez that was expensive. I know I have. The culprit is usually the number of writes to storage or just simply bad logic. I cant help too much with bad logic, that…

Solidity

5 min read

Save Gas with Data Packing
Save Gas with Data Packing
Solidity

5 min read


May 25, 2022

Cooltopia Login and Permission System

A Solidity authorization and permission system If you have used Cooltopia, you will know that you only need to authorize your account once via a signed message. After that, you will no longer see any wallet popups asking for permissions. …

Solidity

7 min read

Cooltopia Login and Permission System
Cooltopia Login and Permission System
Solidity

7 min read


Published in Coinmonks

·Dec 19, 2021

Solidity — Random Numbers

Hopefully, you know that it is impossible to generate a random number purely on-chain. You need to use services like chainlink, but let's be completely honest, pseudo-random is usually good enough for most needs. However, sometimes you need multiple random numbers and things start to get expensive in terms of…

Solidity

5 min read

Solidity — Random Numbers
Solidity — Random Numbers
Solidity

5 min read


Published in Coinmonks

·Oct 22, 2021

Verifying Solidity Signatures

Processing everything on-chain is great, but not always practical and sometimes you might want to do something a little tricky in order to save users gas. Sadly, simply passing the desired data to a contract is not secure and without security measures, people will certainly abuse your contract. There is…

Solidity

2 min read

Verifying Solidity Signatures
Verifying Solidity Signatures
Solidity

2 min read


Aug 30, 2021

Cool Cats Air Dropper v2

Automated drops — The first air dropper I created was a semi-auto dropper that required a fair amount of manual data entry. Not ideal, prone to human error and slow. At the time it made sense due to time constraints. …

Cool Cats

3 min read

Cool Cats Air Dropper v2
Cool Cats Air Dropper v2
Cool Cats

3 min read


Aug 15, 2021

The Reality of Running an NFT

Community is key Let me preface this article by saying, I speak to many NFTs owners and prospective owners. Nothing in this article is directed at any single person or NFT project. It is mostly a reflection of my personal experiences. The Cool Cats team didn't expect things to grow…

Nft

5 min read

The Reality of Running an NFT
The Reality of Running an NFT
Nft

5 min read


Aug 9, 2021

Cool Cats Contract — Improvements

Cool Cats launched a little over five weeks ago, although it feels like much longer. In that time I have spotted a few projects using the Cool Cats contract as a base for their NFT. As such, I feel that I should outline contract improvements that I would make. Trimming the fat In…

Nft

2 min read

Cool Cats Contract — Improvements
Cool Cats Contract — Improvements
Nft

2 min read


Aug 3, 2021

What are Paper Cats?

Cats made of paper — right? Nope. Setting up your first crypto wallet is hard, it's confusing, and almost every tutorial is over complicated and full of jargon. It doesn't have to be. This is where Paper Cats comes in. Friendly NFT/Crypto onboarding We are creating a series of comic-book-style tutorials that use…

Nft

3 min read

What are Paper Cats?
What are Paper Cats?
Nft

3 min read

xtremetom

xtremetom

611 Followers

Cool Cats dev and general code monkey

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