ERC 1155

Why we chose ERC-1155?

The ERC 721 is the most common standard for NFT, but it can cost a lot to buy more than one token. E.g.: Assuming 300 gwei and $3500/ETH, this table is the comparison of gas cost between 721 and 1155 with our smart contract:

NUMBER OF YUNG PIXELS
USD MINT COST (ERC 721)
USD MINT COST (ERC 1155)

Buy 1

$162.55

$61.14

Buy 2

$283.86

$61.14

Buy 3

$461.84

$61.14

Buy 4

$526.46

$61.14

Buy 5

$740.30

$61.14

This comparison show us that the mint cost of ERC-721 NFTs goes progressively higher as the number of Yung Pixels bought increases, and that doesn't happen with the 1155 standard. So we opted to utilize ERC-1155. This way, if someone wants to buy 1,000 YP, it will pay approximately $61.14 as gas cost, the same as someone that buys 1.

Due to adoption of the ERC 1155 standard, every unrevealed and revealing Yung Pixels have a common ID that is the same for all the owners, but each owner can reveal their Yung Pixels in our website. This way, Chainlink's VRF will generate a unique revealed Yung Pixel! ERC 1155 came as an excellent tool to our project.

Exemple of Unrevealed Yung Pixel (5 owners)

Safe, cheap, simple!

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