Blocksky Token

Smart Contract Audit Report

Audit Summary

Blocksky Token is a new ERC-20 token on Ethereum.

For this audit, we reviewed the project team's AntiBotStandardToken contract at 0x5cCb63db1AF44E93095AF45aA820a2109DFecfE6 on the Ethereum Mainnet.

Audit Findings

An Informational finding was identified and the team may want to review it.
Date: May 3rd, 2023.

Finding #1 - AntiBotStandardToken - Informational

Description: Although the SafeMath library is utilized, the contract is deployed with Solidity v0.8.4 which has built-in overflow checks.
Recommendation: SafeMath could be safely removed to reduce contract size, deployment costs, and gas costs on all transactions that utilize it.

Contract Overview

• The total supply of the token is set to 10 billion [10,000,000,000] $BLOCKSKY.
• No mint or burn functions are accessible, though the circulating supply can be decreased by sending tokens to the 0x..dead address.
• At the time of writing this report, there are 3 total token holders. The token allocation is as follows:
• 69.37% of the total supply belongs to an unverified Presale contract.
• 20.42% of the total supply belongs to the owner.
• The remaining 10.21% of the total supply belongs to a PinkSale token locking contract and will unlock on April 2nd, 2024.


• A pre-transfer check in the pinkAntiBot contract is triggered on all transfers when the AntiBot functionality is enabled by the team. The pinkAntiBot contract was not included in the scope of this audit, so we are unable to provide an assessment with regards to its security or functionality.
• The owner can enable/disable the Antibot functionality at any time.
• There are no fees associated with transferring tokens.
• As the contract is deployed with Solidity v0.8.4, it is protected from overflows/underflows.
• The contract complies with the ERC-20 token standard.

Audit Results

Inheritance Chart

Function Graph

Functions Overview

 ($) = payable function
 # = non-constant function
 
 Int = Internal
 Ext = External
 Pub = Public

 + [Int] IERC20 
    - [Ext] totalSupply
    - [Ext] balanceOf
    - [Ext] transfer #
    - [Ext] allowance
    - [Ext] approve #
    - [Ext] transferFrom #

 +  Context 
    - [Int] _msgSender
    - [Int] _msgData

 +  Ownable (Context)
    - [Pub]  #
    - [Pub] owner
    - [Pub] renounceOwnership #
       - modifiers: onlyOwner
    - [Pub] transferOwnership #
       - modifiers: onlyOwner
    - [Prv] _setOwner #

 + [Lib] SafeMath 
    - [Int] tryAdd
    - [Int] trySub
    - [Int] tryMul
    - [Int] tryDiv
    - [Int] tryMod
    - [Int] add
    - [Int] sub
    - [Int] mul
    - [Int] div
    - [Int] mod
    - [Int] sub
    - [Int] div
    - [Int] mod

 + [Int] IPinkAntiBot 
    - [Ext] setTokenOwner #
    - [Ext] onPreTransferCheck #

 +  BaseToken 

 +  AntiBotStandardToken (IERC20, Ownable, BaseToken)
    - [Pub]  ($)
    - [Ext] setEnableAntiBot #
       - modifiers: onlyOwner
    - [Pub] name
    - [Pub] symbol
    - [Pub] decimals
    - [Pub] totalSupply
    - [Pub] balanceOf
    - [Pub] transfer #
    - [Pub] allowance
    - [Pub] approve #
    - [Pub] transferFrom #
    - [Pub] increaseAllowance #
    - [Pub] decreaseAllowance #
    - [Int] _transfer #
    - [Int] _mint #
    - [Int] _burn #
    - [Int] _approve #
    - [Int] _setupDecimals #
    - [Int] _beforeTokenTransfer #

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What is a SourceHat Audit?

Typically, a smart contract audit is a comprehensive review process designed to discover logical errors, security vulnerabilities, and optimization opportunities within code. A SourceHat Audit takes this a step further by verifying economic logic to ensure the stability of smart contracts and highlighting privileged functionality to create a report that is easy to understand for developers and community members alike.

How Do I Interpret the Findings?

Each of our Findings will be labeled with a Severity level. We always recommend the team resolve High, Medium, and Low severity findings prior to deploying the code to the mainnet. Here is a breakdown on what each Severity level means for the project:

• High severity indicates that the issue puts a large number of users' funds at risk and has a high probability of exploitation, or the smart contract contains serious logical issues which can prevent the code from operating as intended.
• Medium severity issues are those which place at least some users' funds at risk and has a medium to high probability of exploitation.
• Low severity issues have a relatively minor risk association; these issues have a low probability of occurring or may have a minimal impact.
• Informational issues pose no immediate risk, but inform the project team of opportunities for gas optimizations and following smart contract security best practices.

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