Renowned NFT creator ben.eth has encountered a surprising setback in his latest NFT contract, resulting in a notable financial loss. The setback arose from a critical flaw in the contract’s logic, leading to an unintended limit of 9,000 tokens instead of the intended 10,000. As a result, ben.eth missed out on approximately 100 ETH in potential profits.
The issue can be traced back to a single line of code within the contract, specifically pertaining to the “maxSupply” variable. Originally set at 10,000, this variable was meant to establish the collection’s supply cap.
However, upon closer examination of line 46 in the contract, it becomes apparent that the “available supply” variable determines the number of mints accessible to the public. Consequently, the team was allotted 1,000 mints, leading to a “available supply” value of 9,000.
There is a huge logic error in ben.eth's latest NFT contract that capped the collection size to 9k instead of the 10k he intended it to be lmao.
He effectively lost out on 100 ETH of profits because of one line of code 🤦♂️.
Here's an explanation of the bug: pic.twitter.com/YvMONlFJAO
— cygaar (@0xCygaar) June 1, 2023
The problem exacerbates when we consider line 61 of the contract, which verifies that the total number of minted NFTs does not exceed 10,000. Unfortunately, the contract owner had already minted 1,000 NFTs immediately after deployment, resulting in a “total supply” of 1,000. This modification restricted the maximum available supply for users to 8,000 instead of the intended 9,000. The issue could have been avoided if the cap had been set to the original value of 10,000, considering the owner minted first. However, the oversight caused the collection to be capped at 9,000 tokens.
To resolve this issue, line 61 should have been programmed to compare “totalSupply” with “maxSupply” rather than “availableMaxSupply.” The latter variable would have only been relevant if public and owner mints coincided.
This programming error has resulted in a significant financial loss for ben.eth, estimated to be around 100 ETH in missed profits. It serves as a stark reminder of the critical importance of conducting thorough code reviews and meticulous testing, particularly in the rapidly evolving realm of non-fungible tokens.
While this setback is undoubtedly unfortunate for ben.eth, it also highlights the pressing need for NFT creators and developers to exercise increased diligence in ensuring the integrity and functionality of their contracts.
As the NFT market continues to expand, such oversights can have substantial financial implications, emphasizing the necessity for comprehensive quality assurance processes.
It is expected that ben.eth will promptly address the issue and provide a resolution for affected users. In the meantime, this incident serves as a valuable lesson for both creators and consumers of NFTs, underscoring the importance of vigilance and due diligence in the ever-evolving landscape of digital assets.
