CR7 Token - Audit Report

Summary

CR7 Token Currency Audit Report CR7 Token ($CR7) is a new ERC-20 token on the Ethereum Blockchain.

For this audit, we reviewed the CR7Token contract that is deployed at 0x6C43751FeF27C956f7E75D5c345a65df1465f7E0 on the Ethereum mainnet.

Notes on the Contract:
The total supply of the token is set to 1.14 billion $CR7 [1,140,000,000].
The owner was previously able to mint tokens; however ownership has been renounced, so minting is no longer accessible.
Any user can burn their tokens to reduce the total supply.
At the time of writing this report, 78.82% of the total supply belongs to a Unicrypt Presale contract.
20.06% of the total supply belongs to a token vesting contract.

The contract complies with the ERC-20 token standard.
There are no fees associated with transferring tokens.
The contract implements the EIP-2612 standard to support permits which allows for approvals to be made via signatures.
As the contract is deployed with Solidity v0.8.7, it is protected from overflows.
Some gas optimizations can be achieved through declaring functions external instead of public and one state variable constant. As the contract is already deployed, this is merely informational.
Ownership has been renounced.

Audit Findings Summary
No external threats were identified.
The team has successfully completed KYC procedures with KYC Capital.
Date: January 2nd, 2022

Audit Results

Vulnerability Category	Notes	Result
Arbitrary Storage Write	N/A	PASS
Arbitrary Jump	N/A	PASS
Centralization of Control	Ownership has been renounced.	PASS
Delegate Call to Untrusted Contract	N/A	PASS
Dependence on Predictable Variables	N/A	PASS
Deprecated Opcodes	N/A	PASS
Ether Thief	N/A	PASS
Exceptions	N/A	PASS
External Calls	N/A	PASS
Flash Loans	N/A	PASS
Integer Over/Underflow	N/A	PASS
Multiple Sends	N/A	PASS
Oracles	N/A	PASS
Suicide	N/A	PASS
State Change External Calls	N/A	PASS
Unchecked Retval	N/A	PASS
User Supplied Assertion	N/A	PASS
Critical Solidity Compiler	N/A	PASS
Overall Contract Safety		PASS

Function Graph

ERC20 Token Graph

Inheritance Chart

Multi-file Token

Functions Overview


 ($) = payable function
 # = non-constant function
 
 + [Lib] Counters 
    - [Int] current
    - [Int] increment #
    - [Int] decrement #
    - [Int] reset #

 + [Lib] Strings 
    - [Int] toString
    - [Int] toHexString
    - [Int] toHexString

 + [Lib] ECDSA 
    - [Prv] _throwError
    - [Int] tryRecover
    - [Int] recover
    - [Int] tryRecover
    - [Int] recover
    - [Int] tryRecover
    - [Int] recover
    - [Int] toEthSignedMessageHash
    - [Int] toEthSignedMessageHash
    - [Int] toTypedDataHash

 +  EIP712 
    - [Pub]  #
    - [Int] _domainSeparatorV4
    - [Prv] _buildDomainSeparator
    - [Int] _hashTypedDataV4

 + [Int] IERC20Permit 
    - [Ext] permit #
    - [Ext] nonces
    - [Ext] DOMAIN_SEPARATOR

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

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

 +  Pausable (Context)
    - [Pub]  #
    - [Pub] paused
    - [Int] _pause #
       - modifiers: whenNotPaused
    - [Int] _unpause #
       - modifiers: whenPaused

 + [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] _beforeTokenTransfer #
    - [Int] _afterTokenTransfer #

 +  ERC20Permit (ERC20, IERC20Permit, EIP712)
    - [Pub]  #
       - modifiers: EIP712
    - [Pub] permit #
    - [Pub] nonces
    - [Ext] DOMAIN_SEPARATOR
    - [Int] _useNonce #

 +  ERC20Burnable (Context, ERC20)
    - [Pub] burn #
    - [Pub] burnFrom #

 +  CR7Token (ERC20, ERC20Burnable, Pausable, Ownable, ERC20Permit)
    - [Pub]  #
       - modifiers: ERC20,ERC20Permit
    - [Pub] pause #
       - modifiers: onlyOwner
    - [Pub] unpause #
       - modifiers: onlyOwner
    - [Pub] mint #
       - modifiers: onlyOwner
    - [Int] _beforeTokenTransfer #
       - modifiers: whenNotPaused

Go Home