USDR [USD Reserve] Token
About USDR
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USDR is a European payment token designed to be the internet's reserve currency. The reserves in USDR will be at least 1:1 supported by physical gold. The main advantage of the USDR is transparency. USDReserve expand the supply only when processing mined gold, so each newly released coin is fully justified and backed by gold. USD Reserve (“USDR”) is an international payment token designed to bring the best monetary technology currently available together with a system that follows the best practices of times past. In partnership with Brothers International GMBH, ten tons of gold, at current market prices valued at $600 million, has been made available to support by guaranteeing the initial issuance of coins. No other gold-based coin has anywhere near that amount of physical assets. USDR is available on Ethereum and Binance smart chain - this cross-chain compatibility allows a more widespread and flexible use. Low gas fees will allow for a continuously expanding list of use cases. USDR opens a pair with the SST (Simba Storage Token) - a storage token utility for Bitcoins.
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Laser Scorebeta Last Audit: 21 April 2022
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Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
Contract ownership is not renounced (belongs to a wallet)
Different versions of Solidity is used:
- Version used: ['0.6.12', '^0.6.0', '^0.6.2']
- ^0.6.0 (#1)
- ^0.6.0 (#173)
- 0.6.12 (#264)
- 0.6.12 (#282)
- 0.6.12 (#350)
- 0.6.12 (#420)
- 0.6.12 (#495)
- ^0.6.2 (#840)
- ^0.6.0 (#1024)
- 0.6.12 (#1153)
- 0.6.12 (#1208)
- 0.6.12 (#1220)
- 0.6.12 (#1239)
- 0.6.12 (#1293)
- 0.6.12 (#1358)
- 0.6.12 (#1372)
- 0.6.12 (#1684)
- 0.6.12 (#1754)
Use one Solidity version.
Additional information: link
AbstractFiatTokenV1._approve(address,address,uint256) (#267-271) is never used and should be removed
AbstractFiatTokenV1._transfer(address,address,uint256) (#273-277) is never used and should be removed
AbstractFiatTokenV2._decreaseAllowance(address,address,uint256) (#1229-1233) is never used and should be removed
AbstractFiatTokenV2._increaseAllowance(address,address,uint256) (#1223-1227) is never used and should be removed
Address.functionCall(address,bytes) (#926-931) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#958-970) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#978-989) is never used and should be removed
Address.sendValue(address,uint256) (#894-906) is never used and should be removed
SafeERC20.safeApprove(IERC20,address,uint256) (#1069-1086) is never used and should be removed
SafeERC20.safeDecreaseAllowance(IERC20,address,uint256) (#1106-1123) is never used and should be removed
SafeERC20.safeIncreaseAllowance(IERC20,address,uint256) (#1088-1104) is never used and should be removed
SafeERC20.safeTransferFrom(IERC20,address,address,uint256) (#1050-1060) is never used and should be removed
SafeMath.div(uint256,uint256) (#105-107) is never used and should be removed
SafeMath.div(uint256,uint256,string) (#121-131) is never used and should be removed
SafeMath.mod(uint256,uint256) (#145-147) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#161-168) is never used and should be removed
SafeMath.mul(uint256,uint256) (#79-91) is never used and should be removed
Remove unused functions.
Additional information: link
Pragma version^0.6.0 (#1) allows old versions
Pragma version^0.6.0 (#173) allows old versions
Pragma version^0.6.2 (#840) allows old versions
Pragma version^0.6.0 (#1024) allows old versions
Deploy with any of the following Solidity versions: 0.5.16 - 0.5.17, 0.6.11 - 0.6.12, 0.7.5 - 0.7.6 Use a simple pragma version that allows any of these versions. Consider using the latest version of Solidity for testing.
Additional information: link
Low level call in Address.sendValue(address,uint256) (#894-906):
- (success) = recipient.call{value: amount}() (#901)
Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#991-1019):
- (success,returndata) = target.call{value: weiValue}(data) (#1000-1002)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence
Additional information: link
Parameter Pausable.updatePauser(address)._newPauser (#408) is not in mixedCase
Parameter Blacklistable.isBlacklisted(address)._account (#461) is not in mixedCase
Parameter Blacklistable.blacklist(address)._account (#469) is not in mixedCase
Parameter Blacklistable.unBlacklist(address)._account (#478) is not in mixedCase
Parameter Blacklistable.updateBlacklister(address)._newBlacklister (#483) is not in mixedCase
Parameter FiatTokenV1.mint(address,uint256)._to (#577) is not in mixedCase
Parameter FiatTokenV1.mint(address,uint256)._amount (#577) is not in mixedCase
Parameter FiatTokenV1.burn(uint256)._amount (#811) is not in mixedCase
Parameter FiatTokenV1.updateMasterMinter(address)._newMasterMinter (#827) is not in mixedCase
Contract FiatTokenV1_1 (#1214-1216) is not in CapWords
Variable EIP712Domain.DOMAIN_SEPARATOR (#1367) is not in mixedCase
Variable USDRTokenV2._initializedV2 (#1761) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
Variable Blacklistable.blacklisted (#428) is too similar to Blacklistable.blacklister (#427)
Variable GasAbstraction.DECREASE_ALLOWANCE_WITH_AUTHORIZATION_TYPEHASH (#1391-1392) is too similar to GasAbstraction.INCREASE_ALLOWANCE_WITH_AUTHORIZATION_TYPEHASH (#1388-1389)
Prevent variables from having similar names.
Additional information: link
initialize(string,string,string,uint8,address,address,address,address) should be declared external:
- FiatTokenV1.initialize(string,string,string,uint8,address,address,address,address) (#523-560)
Use the external attribute for functions never called from the contract.
Additional information: link
FiatTokenV1.allowance(address,address).owner (#636) shadows:
- Ownable.owner() (#315-317) (function)
FiatTokenV1._approve(address,address,uint256).owner (#691) shadows:
- Ownable.owner() (#315-317) (function)
USDRTokenV2.approveWithAuthorization(address,address,uint256,uint256,uint256,bytes32,uint8,bytes32,bytes32).owner (#1863) shadows:
- Ownable.owner() (#315-317) (function)
USDRTokenV2.increaseAllowanceWithAuthorization(address,address,uint256,uint256,uint256,bytes32,uint8,bytes32,bytes32).owner (#1899) shadows:
- Ownable.owner() (#315-317) (function)
USDRTokenV2.decreaseAllowanceWithAuthorization(address,address,uint256,uint256,uint256,bytes32,uint8,bytes32,bytes32).owner (#1935) shadows:
- Ownable.owner() (#315-317) (function)
USDRTokenV2.permit(address,address,uint256,uint256,uint8,bytes32,bytes32).owner (#1988) shadows:
- Ownable.owner() (#315-317) (function)
USDRTokenV2._increaseAllowance(address,address,uint256).owner (#2006) shadows:
- Ownable.owner() (#315-317) (function)
USDRTokenV2._decreaseAllowance(address,address,uint256).owner (#2020) shadows:
- Ownable.owner() (#315-317) (function)
Rename the local variables that shadow another component.
Additional information: link
GasAbstraction._requireValidAuthorization(address,bytes32,uint256,uint256) (#1654-1666) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(now > validAfter,FiatTokenV2: authorization is not yet valid) (#1660-1663)
- require(bool,string)(now < validBefore,FiatTokenV2: authorization is expired) (#1664)
Permit._permit(address,address,uint256,uint256,uint8,bytes32,bytes32) (#1723-1748) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(deadline >= now,FiatTokenV2: permit is expired) (#1732)
Avoid relying on block.timestamp.
Additional information: link
Address.isContract(address) (#863-876) uses assembly
- INLINE ASM (#872-874)
Address._functionCallWithValue(address,bytes,uint256,string) (#991-1019) uses assembly
- INLINE ASM (#1011-1014)
EIP712.makeDomainSeparator(string,string) (#1306-1326) uses assembly
- INLINE ASM (#1312-1314)
Do not use evm assembly.
Additional information: link
Average 30d PancakeSwap liquidity is less than $100. Token is either dead or inactive.
Average 30d number of PancakeSwap swaps is less than 1. Token is either dead or inactive.
Number of Binance Smart Chain (BSC) token holders is less than 100. Token is either dead or inactive. Ignore for presale.
Token is deployed only at one blockchain
BscScan page for the token does not contain additional info: website, socials, description, etc.
Additional information: link
Unable to find token on CoinMarketCap
Additional information: link
Unable to find token contract audit
Unable to verify token contract address on the website
Unable to find audit link on the website
Unable to find token on CoinHunt
Additional information: link
Unable to find code repository for the project
Young tokens have high risks of scam / price dump / death
Token has no active CoinMarketCap listing / rank
Token has a considerable age, but social accounts / website are missing or have few users
Young tokens have high risks of price dump / death
Token has relatively low CoinGecko rank
Price for USDR
LASER DESK beta
Last post in Twitter was more than 180 days ago
Telegram account has relatively few subscribers
Unable to find Blog account (Reddit or Medium)
Unable to find Youtube account
Unable to find Discord account