Smart Contract Audit Report
SharkCoin is a new BEP-20 token on the Binance Smart Chain.
For this audit, we reviewed the project team's Coin contract at 0x756c1a6135786a86dbdcee4897256992180675b2 on the Binance Smart Chain Mainnet.
No findings were identified.
Date: April 19th, 2023.
Updated: April 20th, 2023 to reflect updates made to the contract from commit 093f705928efbbbd5f1c2ebd0bae24f341b67be5 to commit 65bab907f31498f9031349d76b34638934548fd6.
Updated: April 21st, 2023 to reflect the token's Mainnet address.
- The initial supply of the token is set to 1 billion [1,000,000,000] $SHRK.
- No mint functions are accessible beyond deployment.
- Any user can burn their own tokens to reduce the total supply at any time.
- Any user can burn tokens on another user's behalf if an allowance has been granted.
- At the time of writing this report, 97.65% of the total supply belongs to the deployer.
- The remaining 2.35% of the total supply belongs to an unverified contract.
- The Default Admin can pause/unpause the contract at any time which disables all transfers and burning from being able to occur.
- As the contract is deployed with Solidity v0.8.17, it is protected from overflows/underflows.
- The contract complies with the BEP-20 token standard.
|Arbitrary Jump/Storage Write||N/A||PASS|
|Centralization of Control||The team can pause all transfers at any time.||PASS|
|Delegate Call to Untrusted Contract||N/A||PASS|
|Dependence on Predictable Variables||N/A||PASS|
|Improper Authorization Scheme||N/A||PASS|
|Outdated Compiler Version||N/A||PASS|
|Overall Contract Safety||PASS|
($) = payable function # = non-constant function Int = Internal Ext = External Pub = Public + [Int] IAccessControl - [Ext] hasRole - [Ext] getRoleAdmin - [Ext] grantRole # - [Ext] revokeRole # - [Ext] renounceRole # + [Int] IAccessControlEnumerable (IAccessControl) - [Ext] getRoleMember - [Ext] getRoleMemberCount + Context - [Int] _msgSender - [Int] _msgData + [Lib] Math - [Int] max - [Int] min - [Int] average - [Int] ceilDiv - [Int] mulDiv - [Int] mulDiv - [Int] sqrt - [Int] sqrt - [Int] log2 - [Int] log2 - [Int] log10 - [Int] log10 - [Int] log256 - [Int] log256 + [Lib] SignedMath - [Int] max - [Int] min - [Int] average - [Int] abs + [Lib] Strings - [Int] toString - [Int] toString - [Int] toHexString - [Int] toHexString - [Int] toHexString - [Int] equal + [Int] IERC165 - [Ext] supportsInterface + ERC165 (IERC165) - [Pub] supportsInterface + AccessControl (Context, IAccessControl, ERC165) - [Pub] supportsInterface - [Pub] hasRole - [Int] _checkRole - [Int] _checkRole - [Pub] getRoleAdmin - [Pub] grantRole # - modifiers: onlyRole - [Pub] revokeRole # - modifiers: onlyRole - [Pub] renounceRole # - [Int] _setupRole # - [Int] _setRoleAdmin # - [Int] _grantRole # - [Int] _revokeRole # + [Lib] EnumerableSet - [Prv] _add # - [Prv] _remove # - [Prv] _contains - [Prv] _length - [Prv] _at - [Prv] _values - [Int] add # - [Int] remove # - [Int] contains - [Int] length - [Int] at - [Int] values - [Int] add # - [Int] remove # - [Int] contains - [Int] length - [Int] at - [Int] values - [Int] add # - [Int] remove # - [Int] contains - [Int] length - [Int] at - [Int] values + AccessControlEnumerable (IAccessControlEnumerable, AccessControl) - [Pub] supportsInterface - [Pub] getRoleMember - [Pub] getRoleMemberCount - [Int] _grantRole # - [Int] _revokeRole # + Pausable (Context) - [Pub]
# - [Pub] paused - [Int] _requireNotPaused - [Int] _requirePaused - [Int] _pause # - modifiers: whenNotPaused - [Int] _unpause # - modifiers: whenPaused + [Lib] StorageSlot - [Int] getAddressSlot - [Int] getBooleanSlot - [Int] getBytes32Slot - [Int] getUint256Slot - [Int] getStringSlot - [Int] getStringSlot - [Int] getBytesSlot - [Int] getBytesSlot + [Int] IERC20 - [Ext] totalSupply - [Ext] balanceOf - [Ext] transfer # - [Ext] allowance - [Ext] approve # - [Ext] transferFrom # + [Int] IERC20Metadata (IERC20) - [Ext] name - [Ext] symbol - [Ext] decimals + ERC20 (Context, IERC20, IERC20Metadata) - [Pub] # - [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] _spendAllowance # - [Int] _beforeTokenTransfer # - [Int] _afterTokenTransfer # + ERC20Burnable (Context, ERC20) - [Pub] burn # - [Pub] burnFrom # + Coin (AccessControlEnumerable, Pausable, ERC20Burnable) - [Pub] # - modifiers: ERC20 - [Ext] pause # - modifiers: onlyRole - [Ext] unpause # - modifiers: onlyRole - [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.