Smart Contract Audit Report
Web3 Bets is a creating new ERC-20 governance token.
For this audit, we reviewed Web3 Bets' Web3BetsCoin contract at 0x001a185f0A605Cd18A6C5A7059D928383B36d5cC on the Binance Smart Chain Mainnet.
Please ensure trust in the team prior to investing as they have some control in the ecosystem.
Date: April 22nd, 2022.
- The total supply of the token is set to 1 billion $BXB [1,000,000,000].
- At the time of writing this report, 100% of the total supply is held by the team.
- No mint functions are available beyond deployment.
- Any user can burn their tokens to reduce the total supply. Additionally, users can spend their granted allowance to burn tokens from another account.
- The $BXB token represents votes intended to be used in a DAO where one token represents one vote.
- Users must delegate votes to themselves in order to use them, or to another address to vote on their behalf.
- Once votes are delegated, the user must explicitly delegate back to themselves to regain their votes.
- Transferring $BXB effectively transfers all voting rights to the receiver's delegatee, regardless of if these voting rights have been previously delegated.
- Users also have the option to delegate through the use of a signed message, allowing for a gasless delegation for the user.
- The contract features a snapshot mechanism that allows current balances of holders and the total supply to be recorded at a specific time. These snapshots occur prior to token transfers, only if the contract is not paused.
- The owner has the Admin, Snapshot, and Pauser roles.
- The Admin role can grant, revoke, create and reassign roles.
- The Snapshot role can create snapshots.
- The Pauser role can pause and unpause all token transfers at any time.
- As the contract is implemented with Solidity v0.8.0, it is safe from any possible overflows/underflows.
|Arbitrary Jump/Storage Write||N/A||PASS|
|Centralization of Control||PASS|
|Delegate Call to Untrusted Contract||N/A||PASS|
|Dependence on Predictable Variables||N/A||PASS|
|Improper Authorization Scheme||N/A||PASS|
|Outdated Compiler Version||N/A||PASS|
|Overall Contract Safety||PASS|
($) = payable function # = non-constant function Int = Internal Ext = External Pub = Public + [Lib] SafeCast - [Int] toUint224 - [Int] toUint128 - [Int] toUint96 - [Int] toUint64 - [Int] toUint32 - [Int] toUint16 - [Int] toUint8 - [Int] toUint256 - [Int] toInt128 - [Int] toInt64 - [Int] toInt32 - [Int] toInt16 - [Int] toInt8 - [Int] toInt256 + [Int] IVotes - [Ext] getVotes - [Ext] getPastVotes - [Ext] getPastTotalSupply - [Ext] delegates - [Ext] delegate # - [Ext] delegateBySig # + [Int] IERC20Permit - [Ext] permit # - [Ext] nonces - [Ext] DOMAIN_SEPARATOR + [Int] IERC165 - [Ext] supportsInterface + ERC165 (IERC165) - [Pub] supportsInterface + [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] IAccessControl - [Ext] hasRole - [Ext] getRoleAdmin - [Ext] grantRole # - [Ext] revokeRole # - [Ext] renounceRole # + [Lib] Counters - [Int] current - [Int] increment # - [Int] decrement # - [Int] reset # + [Lib] Math - [Int] max - [Int] min - [Int] average - [Int] ceilDiv + [Lib] Arrays - [Int] findUpperBound + Context - [Int] _msgSender - [Int] _msgData + Pausable (Context) - [Pub] # - [Pub] paused - [Int] _pause # - modifiers: whenNotPaused - [Int] _unpause # - modifiers: whenPaused + AccessControl (Context, IAccessControl, ERC165) - [Pub] supportsInterface - [Pub] hasRole - [Int] _checkRole - [Pub] getRoleAdmin - [Pub] grantRole # - modifiers: onlyRole - [Pub] revokeRole # - modifiers: onlyRole - [Pub] renounceRole # - [Int] _setupRole # - [Int] _setRoleAdmin # - [Int] _grantRole # - [Int] _revokeRole # + [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 # + ERC20Permit (ERC20, IERC20Permit, EIP712) - [Pub] # - modifiers: EIP712 - [Pub] permit # - [Pub] nonces - [Ext] DOMAIN_SEPARATOR - [Int] _useNonce # + ERC20Votes (IVotes, ERC20Permit) - [Pub] checkpoints - [Pub] numCheckpoints - [Pub] delegates - [Pub] getVotes - [Pub] getPastVotes - [Pub] getPastTotalSupply - [Prv] _checkpointsLookup - [Pub] delegate # - [Pub] delegateBySig # - [Int] _maxSupply - [Int] _mint # - [Int] _burn # - [Int] _afterTokenTransfer # - [Int] _delegate # - [Prv] _moveVotingPower # - [Prv] _writeCheckpoint # - [Prv] _add - [Prv] _subtract + ERC20Snapshot (ERC20) - [Int] _snapshot # - [Int] _getCurrentSnapshotId - [Pub] balanceOfAt - [Pub] totalSupplyAt - [Int] _beforeTokenTransfer # - [Prv] _valueAt - [Prv] _updateAccountSnapshot # - [Prv] _updateTotalSupplySnapshot # - [Prv] _updateSnapshot # - [Prv] _lastSnapshotId + ERC20Burnable (Context, ERC20) - [Pub] burn # - [Pub] burnFrom # + Web3BetsCoin (ERC20, ERC20Burnable, ERC20Snapshot, AccessControl, Pausable, ERC20Permit, ERC20Votes) - [Pub] # - modifiers: ERC20,ERC20Permit - [Pub] snapshot # - modifiers: onlyRole - [Pub] pause # - modifiers: onlyRole - [Pub] unpause # - modifiers: onlyRole - [Int] _beforeTokenTransfer # - modifiers: whenNotPaused - [Int] _afterTokenTransfer # - [Int] _mint # - [Int] _burn #
About Solidity Finance
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What is a Solidity Audit?
Typically, a smart contract audit is a comprehensive review process designed to discover logical errors, security vulnerabilities, and optimization opportunities within code. A Solidity 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.