Alphaseek
Smart Contract Audit Report
Audit Summary
Alphaseek is building a new NFT collection with royalties and rewards.
For this audit, we reviewed the AlphaseekFoundersPass, AlphaseekRoyaltyReceiver, AlphaseekFoundersMinter, and AlphaseekTokenClaims contracts provided to us by the project team.
Audit Findings
Please ensure trust in the team prior to investing as they have some control in the ecosystem.
Date: May 24th, 2022.
Updated: May 24th, 2022 to resolve finding #1.Finding #1 - AlphaseekFoundersMinter - Low (Resolved)
Description: The _mint() function does not take in to account the amount of NFTs being minted in the current transaction when checking against total supply.Risk/Impact: The total supply can be exceeded.require( tokenContract.totalSupply() < MINTABLE_TOKENS + PROMOTION_TOKENS, "Exceeds supply" );
Recommendation: The team should modify the function to account for NFTs being minted in the current transaction.Resolution: The team has indicated this is intended, as only one NFT can be minted at a time.require( tokenContract.totalSupply() + amount <= MINTABLE_TOKENS + PROMOTION_TOKENS, "Exceeds supply" );
Contracts Overview
AlphaseekFoundersPass Contract:
- The contracts utilize ReentrancyGuard to prevent against reentrancy attacks in applicable functions.
- As the contracts are implemented with Solidity v0.8.9, they are safe from any possible overflows/underflows.
AlphaseekRoyaltyReceiver Contract:
- This contract facilitates the minting of Founders NFTs with associated royalties.
- This contract complies with the ERC721 standard.
- The Minter can mint any number of NFTs to any address at any time.
- The Admin can update the contract URI and token URI at any time.
- The Admin can update the royalty fee to any value at any time.
AlphaseekFoundersMinter Contract:
- This contract facilitates the payment of royalties to multiple payees.
- Roylaty payees and their shares of royalty payments are set on construction.
- Funds in the contract can be distributed to payees at any time.
AlphaseekTokenClaims Contract:
- This contract is used to mint Founders NFTs.
- The total supply of Founders NFTs is 1383; the cost to mint one NFT is 3.33 ETH
- The contract implements four phases for minting: a presale, a private sale, a waitlist sale, and a public sale.
- The presale must conclude before the contract enters any other phase.
- During the presale, the admin can mint tokens to a promoter address that is set on construction.
- The contract uses an off-chain generated Merkle tree provided by the owner to store and verify addresses that are whitelisted for minting.
- During the private sale and waitlist sale, the user must provide a proof that can be used to verify against the Merkle tree to ensure that the user is indeed whitelisted.
- If signature minting is active, users must also provide a signature and nonce that is used to verify the user is whitelisted for minting.
- Users should exercise caution and ensure that the correct amount of ETH is supplied, as the contract will not return any excess ETH to the user.
- Users can mint one NFT per transaction.
- If the transaction limit is active, the contract enforces a limit to the total number of mint transactions a user can perform.
- The Admin can update the address of the token contract at any time.
- The Admin can pause or unpause the contract at any time; this prevents users from minting.
- The Admin can activate or deactivate the signature requirement for minting at any time.
- The Admin can update the signer address at any time.
- The Admin can activate or deactivate the transaction limit at any time.
- The Admin can update the transaction limit for any address at any time.
- The Admin can mint any number of NFTs up to the transaction limit set for their address to any address at any time.
- This contract is used to claim $SEEK tokens rewarded for owning Founders NFTs.
- The period during which users are able to claim $SEEK tokens starts on contract deployment and lasts for 90 days.
- During the claiming period, users can claim 1000 $SEEK tokens for each Founders NFT they own.
- The Admin can update the reward amount to any value over 100 at any time.
- The Admin can enable or disable claiming at any time.
- The Admin can extend the claiming period for any length of time.
- The Admin can update the Founders NFT contract address at any time.
- The Admin can update the reward token contract address at any time.
- The Admin can withdraw any reward tokens remaining in the contract once the claiming period has ended.
Audit Results
| Vulnerability Category | Notes | Result |
|---|---|---|
| Arbitrary Jump/Storage Write | N/A | PASS |
| Centralization of Control |
| PASS |
| Compiler Issues | N/A | PASS |
| Delegate Call to Untrusted Contract | N/A | PASS |
| Dependence on Predictable Variables | N/A | PASS |
| Ether/Token Theft | N/A | PASS |
| Flash Loans | N/A | PASS |
| Front Running | N/A | PASS |
| Improper Events | N/A | PASS |
| Improper Authorization Scheme | N/A | PASS |
| Integer Over/Underflow | N/A | PASS |
| Logical Issues | N/A | PASS |
| Oracle Issues | N/A | PASS |
| Outdated Compiler Version | N/A | PASS |
| Race Conditions | N/A | PASS |
| Reentrancy | N/A | PASS |
| Signature Issues | N/A | PASS |
| Unbounded Loops | N/A | PASS |
| Unused Code | N/A | PASS |
| Overall Contract Safety | PASS |
AlphaseekFoundersPass Contract
($) = payable function
# = non-constant function
Int = Internal
Ext = External
Pub = Public
+ ReentrancyGuard
- [Pub] #
+ [Int] IERC165
- [Ext] supportsInterface
+ [Int] IERC721 (IERC165)
- [Ext] balanceOf
- [Ext] ownerOf
- [Ext] safeTransferFrom #
- [Ext] safeTransferFrom #
- [Ext] transferFrom #
- [Ext] approve #
- [Ext] setApprovalForAll #
- [Ext] getApproved
- [Ext] isApprovedForAll
+ [Int] IERC721Receiver
- [Ext] onERC721Received #
+ [Int] IERC721Metadata (IERC721)
- [Ext] name
- [Ext] symbol
- [Ext] tokenURI
+ [Lib] Address
- [Int] isContract
- [Int] sendValue #
- [Int] functionCall #
- [Int] functionCall #
- [Int] functionCallWithValue #
- [Int] functionCallWithValue #
- [Int] functionStaticCall
- [Int] functionStaticCall
- [Int] functionDelegateCall #
- [Int] functionDelegateCall #
- [Int] verifyCallResult
+ Context
- [Int] _msgSender
- [Int] _msgData
+ [Lib] Strings
- [Int] toString
- [Int] toHexString
- [Int] toHexString
+ ERC165 (IERC165)
- [Pub] supportsInterface
+ ERC721 (Context, ERC165, IERC721, IERC721Metadata)
- [Pub] #
- [Pub] supportsInterface
- [Pub] balanceOf
- [Pub] ownerOf
- [Pub] name
- [Pub] symbol
- [Pub] tokenURI
- [Int] _baseURI
- [Pub] approve #
- [Pub] getApproved
- [Pub] setApprovalForAll #
- [Pub] isApprovedForAll
- [Pub] transferFrom #
- [Pub] safeTransferFrom #
- [Pub] safeTransferFrom #
- [Int] _safeTransfer #
- [Int] _exists
- [Int] _isApprovedOrOwner
- [Int] _safeMint #
- [Int] _safeMint #
- [Int] _mint #
- [Int] _burn #
- [Int] _transfer #
- [Int] _approve #
- [Int] _setApprovalForAll #
- [Prv] _checkOnERC721Received #
- [Int] _beforeTokenTransfer #
- [Int] _afterTokenTransfer #
+ [Int] IERC2981 (IERC165)
- [Ext] royaltyInfo
+ ERC2981 (IERC2981, ERC165)
- [Pub] supportsInterface
- [Pub] royaltyInfo
- [Int] _feeDenominator
- [Int] _setDefaultRoyalty #
- [Int] _deleteDefaultRoyalty #
- [Int] _setTokenRoyalty #
- [Int] _resetTokenRoyalty #
+ [Lib] Counters
- [Int] current
- [Int] increment #
- [Int] decrement #
- [Int] reset #
+ [Int] IAccessControl
- [Ext] hasRole
- [Ext] getRoleAdmin
- [Ext] grantRole #
- [Ext] revokeRole #
- [Ext] renounceRole #
+ [Int] IAccessControlEnumerable (IAccessControl)
- [Ext] getRoleMember
- [Ext] getRoleMemberCount
+ 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 #
+ [Lib] ERC165Checker
- [Int] supportsERC165
- [Int] supportsInterface
- [Int] getSupportedInterfaces
- [Int] supportsAllInterfaces
- [Prv] _supportsERC165Interface
+ [Int] IMinterERC721
- [Ext] minterCount
- [Ext] supportsInterface
+ AccessControlMintable (AccessControlEnumerable)
- [Pub] #
- [Ext] owner
- [Ext] grantAdminRole #
- [Ext] removeAdminRole #
- [Ext] addMinterContract #
- [Ext] removeMinterContract #
- [Int] _grantRole #
- [Prv] validateAuthorized
- [Prv] validateMinter
- [Pub] supportsInterface
+ [Int] IMintableERC721
- [Ext] mint #
- [Ext] totalSupply
+ AlphaseekFoundersPass (AccessControlMintable, ReentrancyGuard, ERC721, ERC2981, IMintableERC721)
- [Pub] #
- modifiers: ERC721,AccessControlMintable
- [Ext] mint #
- modifiers: nonReentrant,onlyMinter
- [Ext] setRoyaltyInfo #
- modifiers: onlyAuthorized
- [Ext] setContractURI #
- modifiers: onlyAuthorized
- [Ext] setTokenURI #
- modifiers: onlyAuthorized
- [Ext] contractURI
- [Pub] tokenURI
- [Pub] totalSupply
- [Pub] supportsInterface AlphaseekRoyaltyReceiver Contract
($) = payable function
# = non-constant function
Int = Internal
Ext = External
Pub = Public
+ [Int] IERC20
- [Ext] totalSupply
- [Ext] balanceOf
- [Ext] transfer #
- [Ext] allowance
- [Ext] approve #
- [Ext] transferFrom #
+ [Lib] Address
- [Int] isContract
- [Int] sendValue #
- [Int] functionCall #
- [Int] functionCall #
- [Int] functionCallWithValue #
- [Int] functionCallWithValue #
- [Int] functionStaticCall
- [Int] functionStaticCall
- [Int] functionDelegateCall #
- [Int] functionDelegateCall #
- [Int] verifyCallResult
+ [Lib] SafeERC20
- [Int] safeTransfer #
- [Int] safeTransferFrom #
- [Int] safeApprove #
- [Int] safeIncreaseAllowance #
- [Int] safeDecreaseAllowance #
- [Prv] _callOptionalReturn #
+ Context
- [Int] _msgSender
- [Int] _msgData
+ PaymentSplitter (Context)
- [Pub] ($)
- [Ext] ($)
- [Pub] totalShares
- [Pub] totalReleased
- [Pub] totalReleased
- [Pub] shares
- [Pub] released
- [Pub] released
- [Pub] payee
- [Pub] release #
- [Pub] release #
- [Prv] _pendingPayment
- [Prv] _addPayee #
+ AlphaseekRoyaltyReceiver (PaymentSplitter)
- [Pub] ($)
- modifiers: PaymentSplitter
- [Ext] withdrawAll # AlphaSeekFoundersMinter Contract
($) = payable function
# = non-constant function
Int = Internal
Ext = External
Pub = Public
+ ReentrancyGuard
- [Pub] #
+ [Int] IERC165
- [Ext] supportsInterface
+ [Lib] ERC165Checker
- [Int] supportsERC165
- [Int] supportsInterface
- [Int] getSupportedInterfaces
- [Int] supportsAllInterfaces
- [Prv] _supportsERC165Interface
+ [Lib] Strings
- [Int] toString
- [Int] toHexString
- [Int] toHexString
+ [Lib] ECDSA
- [Prv] _throwError
- [Int] tryRecover
- [Int] recover
- [Int] tryRecover
- [Int] recover
- [Int] tryRecover
- [Int] recover
- [Int] toEthSignedMessageHash
- [Int] toEthSignedMessageHash
- [Int] toTypedDataHash
+ SignatureEvaluator
- [Pub] #
- [Int] _setSigner #
- [Int] _getSigner
- [Int] _validateSignature #
- [Int] _generateMessage
+ [Lib] MerkleProof
- [Int] verify
- [Int] processProof
- [Prv] _efficientHash
+ AllowedEvaluator
- [Int] _setAllowedMerkleRoot #
- [Int] _validateMerkleProof
+ AccountLimiter
- [Int] _setAccountLimitDefault #
- [Int] _setAccountLimit #
- [Int] _getAccountLimit
- [Int] _incrementAccountCount #
- [Int] _getAccountCount
- [Int] _validateAccountCount
+ [Int] IERC20
- [Ext] totalSupply
- [Ext] balanceOf
- [Ext] transfer #
- [Ext] allowance
- [Ext] approve #
- [Ext] transferFrom #
+ [Lib] Address
- [Int] isContract
- [Int] sendValue #
- [Int] functionCall #
- [Int] functionCall #
- [Int] functionCallWithValue #
- [Int] functionCallWithValue #
- [Int] functionStaticCall
- [Int] functionStaticCall
- [Int] functionDelegateCall #
- [Int] functionDelegateCall #
- [Int] verifyCallResult
+ [Lib] SafeERC20
- [Int] safeTransfer #
- [Int] safeTransferFrom #
- [Int] safeApprove #
- [Int] safeIncreaseAllowance #
- [Int] safeDecreaseAllowance #
- [Prv] _callOptionalReturn #
+ Context
- [Int] _msgSender
- [Int] _msgData
+ PaymentSplitter (Context)
- [Pub] ($)
- [Ext] ($)
- [Pub] totalShares
- [Pub] totalReleased
- [Pub] totalReleased
- [Pub] shares
- [Pub] released
- [Pub] released
- [Pub] payee
- [Pub] release #
- [Pub] release #
- [Prv] _pendingPayment
- [Prv] _addPayee #
+ Provisioner (PaymentSplitter)
- [Pub] ($)
- modifiers: PaymentSplitter
- [Ext] withdrawAll #
+ [Int] IAccessControl
- [Ext] hasRole
- [Ext] getRoleAdmin
- [Ext] grantRole #
- [Ext] revokeRole #
- [Ext] renounceRole #
+ [Int] IAccessControlEnumerable (IAccessControl)
- [Ext] getRoleMember
- [Ext] getRoleMemberCount
+ 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 #
+ AccessControlMinter (AccessControlEnumerable)
- [Pub] #
- [Ext] grantAdminRole #
- [Ext] removeAdminRole #
- [Int] _grantRole #
- [Prv] validateAuthorized
- [Pub] supportsInterface
+ [Int] IMintableERC721
- [Ext] mint #
- [Ext] totalSupply
+ [Int] IMinterERC721
- [Ext] minterCount
- [Ext] supportsInterface
+ AlphaseekFoundersMinter (AccessControlMinter, ReentrancyGuard, SignatureEvaluator, AllowedEvaluator, AccountLimiter, Provisioner, IMinterERC721)
- [Pub] #
- modifiers: SignatureEvaluator,Provisioner,AccessControlMinter
- [Ext] premint #
- modifiers: onlyAuthorized
- [Ext] mint ($)
- modifiers: callerIsUser,onlyActiveSale
- [Ext] adminMint #
- modifiers: onlyAuthorized
- [Ext] setTokenContract #
- modifiers: onlyAuthorized
- [Ext] setMintingPaused #
- modifiers: onlyAuthorized
- [Ext] startPrivateMint #
- modifiers: onlyAuthorized
- [Ext] startWaitlistMint #
- modifiers: onlyAuthorized
- [Ext] startPublicMint #
- modifiers: onlyAuthorized
- [Ext] setmintPrice #
- modifiers: onlyAuthorized
- [Ext] setSignatureRequired #
- modifiers: onlyAuthorized
- [Ext] setWalletLimitRequired #
- modifiers: onlyAuthorized
- [Ext] setWalletLimitDefault #
- modifiers: onlyAuthorized
- [Ext] setWalletLimit #
- modifiers: onlyAuthorized
- [Ext] setSigner #
- modifiers: onlyAuthorized
- [Ext] totalMinted
- [Ext] getWalletLimit
- [Ext] getWalletCount
- [Ext] getSigner
- [Pub] supportsInterface
- [Int] _mint #
- modifiers: nonReentrant
- [Prv] validateActiveSale AlphaseekTokenClaims Contract
($) = payable function
# = non-constant function
Int = Internal
Ext = External
Pub = Public
+ ReentrancyGuard
- [Pub] #
+ [Int] IERC165
- [Ext] supportsInterface
+ [Lib] ERC165Checker
- [Int] supportsERC165
- [Int] supportsInterface
- [Int] getSupportedInterfaces
- [Int] supportsAllInterfaces
- [Prv] _supportsERC165Interface
+ [Int] IERC20
- [Ext] totalSupply
- [Ext] balanceOf
- [Ext] transfer #
- [Ext] allowance
- [Ext] approve #
- [Ext] transferFrom #
+ [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] Strings
- [Int] toString
- [Int] toHexString
- [Int] toHexString
+ 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 #
+ AccessControlMinter (AccessControlEnumerable)
- [Pub] #
- [Ext] grantAdminRole #
- [Ext] removeAdminRole #
- [Int] _grantRole #
- [Prv] validateAuthorized
- [Pub] supportsInterface
+ [Int] IMinterERC721
- [Ext] minterCount
- [Ext] supportsInterface
+ AlphaseekTokenClaims (ReentrancyGuard, AccessControlMinter)
- [Pub] #
- modifiers: AccessControlMinter
- [Ext] claim #
- modifiers: nonReentrant
- [Ext] withdrawRemainingToken #
- modifiers: onlyAuthorized
- [Ext] setClaimAllowed #
- modifiers: onlyAuthorized
- [Ext] setClaimEventDeadline #
- modifiers: onlyAuthorized
- [Ext] setTokenContract #
- modifiers: onlyAuthorized
- [Ext] setMinterContract #
- modifiers: onlyAuthorized
- [Ext] setRewardAmount #
- modifiers: onlyAuthorized
- [Pub] rewardUnclaimed About SourceHat
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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.
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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.
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