Smart Contract Audit Report
HedgeUp is a new ERC-20 token on Ethereum.
For this audit, we reviewed the project team's HedgeUp contract at 0xf033acbb2edd5a3da90855a5afff0fb7736f4dda on the Ethereum Mainnet.
No findings were identified.
Date: December 23rd, 2022.
- The total supply of the token is set to 620 million $HDUP [620,000,000].
- No mint functions are accessible beyond deployment.
- Any user can burn their own tokens to decrease the total supply.
- Any user can burn tokens on another user's behalf if an allowance has been granted.
- At the time of writing this report, 100% of the total supply belongs to the owner.
- The HedgeUp token represents votes intended to be used in a DAO where one token represents one vote.
- Users may delegate their votes to another address allowing them to vote on behalf of the user.
- Once votes are delegated, the user must explicitly delegate back to themselves to regain their votes.
- Users also have the option to delegate through the use of a signed message, allowing for a gasless delegation for the user.
- The contract implements the EIP-2612 standard to support permits which allows for approvals to be made via signatures.
- The owner can take a snapshot of the contract at any time which will record the total supply and every holder's balance at the time of the transaction.
- As the contract is deployed with Solidity v0.8.14, it is protected from overflows/underflows.
- The contract complies with the ERC-20 token standard.
|Arbitrary Jump/Storage Write||N/A||PASS|
|Centralization of Control||The team currently owns 100% of the total supply.||PASS|
|Delegate Call to Untrusted Contract||N/A||PASS|
|Dependence on Predictable Variables||N/A||PASS|
|Improper Authorization Scheme||N/A||PASS|
|Outdated Compiler Version||N/A||PASS|
|Overall Contract Safety||PASS|
($) = payable function # = non-constant function Int = Internal Ext = External Pub = Public + [Lib] SafeCast - [Int] toUint248 - [Int] toUint240 - [Int] toUint232 - [Int] toUint224 - [Int] toUint216 - [Int] toUint208 - [Int] toUint200 - [Int] toUint192 - [Int] toUint184 - [Int] toUint176 - [Int] toUint168 - [Int] toUint160 - [Int] toUint152 - [Int] toUint144 - [Int] toUint136 - [Int] toUint128 - [Int] toUint120 - [Int] toUint112 - [Int] toUint104 - [Int] toUint96 - [Int] toUint88 - [Int] toUint80 - [Int] toUint72 - [Int] toUint64 - [Int] toUint56 - [Int] toUint48 - [Int] toUint40 - [Int] toUint32 - [Int] toUint24 - [Int] toUint16 - [Int] toUint8 - [Int] toUint256 - [Int] toInt248 - [Int] toInt240 - [Int] toInt232 - [Int] toInt224 - [Int] toInt216 - [Int] toInt208 - [Int] toInt200 - [Int] toInt192 - [Int] toInt184 - [Int] toInt176 - [Int] toInt168 - [Int] toInt160 - [Int] toInt152 - [Int] toInt144 - [Int] toInt136 - [Int] toInt128 - [Int] toInt120 - [Int] toInt112 - [Int] toInt104 - [Int] toInt96 - [Int] toInt88 - [Int] toInt80 - [Int] toInt72 - [Int] toInt64 - [Int] toInt56 - [Int] toInt48 - [Int] toInt40 - [Int] toInt32 - [Int] toInt24 - [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 + [Lib] Counters - [Int] current - [Int] increment # - [Int] decrement # - [Int] reset # + [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] Strings - [Int] toString - [Int] toHexString - [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 + [Lib] StorageSlot - [Int] getAddressSlot - [Int] getBooleanSlot - [Int] getBytes32Slot - [Int] getUint256Slot + [Lib] Arrays - [Int] findUpperBound - [Int] unsafeAccess - [Int] unsafeAccess - [Int] unsafeAccess + Context - [Int] _msgSender - [Int] _msgData + Ownable (Context) - [Pub] # - [Pub] owner - [Int] _checkOwner - [Pub] renounceOwnership # - modifiers: onlyOwner - [Pub] transferOwnership # - modifiers: onlyOwner - [Int] _transferOwnership # + [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 - [Prv] _unsafeAccess + 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 # + HedgeUp (ERC20, ERC20Burnable, ERC20Snapshot, Ownable, ERC20Permit, ERC20Votes) - [Pub] # - modifiers: ERC20,ERC20Permit - [Pub] snapshot # - modifiers: onlyOwner - [Int] _beforeTokenTransfer # - [Int] _afterTokenTransfer # - [Int] _mint # - [Int] _burn #
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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.