Dino.Exchange is an automated market-making (AMM) decentralized exchange (DEX) running on Binance Smart Chain with a lot of features that let you earn tokens by yield farming or playing games on our platform. We want to create an environment where people can do yield farming with sustainably high APR. Some of the Dino Exchange features include:
1. Trade
DinoExchange uses an automated market maker (AMM) model - allows digital assets to be traded without permission and automatically by using liquidity pools instead of a traditional market of buyers and sellers.
2. Farm
Liquidity mining is the best way to make passive income. Liquidity pools are very important for decentralized exchanges and this is exactly one of the key advantages you will have with Dino. With Dino, users can do liquidity mining in selected pools so that they can enjoy passive income. While someone provides liquidity for the designated pool he/she earns a Dino token as a reward
Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
DinoToken._writeCheckpoint(address,uint32,uint256,uint256) (contracts/DinoToken.sol#219-237) uses a dangerous strict equality:
- nCheckpoints > 0 && checkpoints[delegatee][nCheckpoints - 1].fromBlock == blockNumber (contracts/DinoToken.sol#229)
Don't use strict equality to determine if an account has enough Ether or tokens.
Additional information: link
Not a direct threat, but may indicate unreliable intentions of developer. Widespread names (e.g. Elon, King, Moon, Doge) are common among meme-tokens and scams. The allow to gain free hype and attract unexperienced investors.
DinoToken.delegateBySig(address,uint256,uint256,uint8,bytes32,bytes32) (contracts/DinoToken.sol#85-126) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(now <= expiry,DINO::delegateBySig: signature expired) (contracts/DinoToken.sol#124)
Avoid relying on block.timestamp.
Additional information: link
DinoToken.getChainId() (contracts/DinoToken.sol#244-248) uses assembly
- INLINE ASM (contracts/DinoToken.sol#246)
Do not use evm assembly.
Additional information: link
Different versions of Solidity is used:
- Version used: ['0.6.12', '>=0.6.0<0.8.0']
- >=0.6.0<0.8.0 (@openzeppelin/contracts/math/SafeMath.sol#3)
- >=0.6.0<0.8.0 (@openzeppelin/contracts/token/ERC20/ERC20.sol#3)
- >=0.6.0<0.8.0 (@openzeppelin/contracts/token/ERC20/IERC20.sol#3)
- >=0.6.0<0.8.0 (@openzeppelin/contracts/utils/Context.sol#3)
- 0.6.12 (contracts/DinoToken.sol#3)
Use one Solidity version.
Additional information: link
SafeMath.trySub(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#35-38) is never used and should be removed
Remove unused functions.
Additional information: link
Pragma version>=0.6.0<0.8.0 (@openzeppelin/contracts/utils/Context.sol#3) is too complex
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
Variable DinoToken._delegates (contracts/DinoToken.sol#16) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
Redundant expression "this (@openzeppelin/contracts/utils/Context.sol#21)" inContext (@openzeppelin/contracts/utils/Context.sol#15-24)
Remove redundant statements if they congest code but offer no value.
Additional information: link
DinoToken.constructor() (contracts/DinoToken.sol#45-48) uses literals with too many digits:
- _mint(msg.sender,uint256(200000000) * uint256(10) ** decimals()) (contracts/DinoToken.sol#47)
Use: Ether suffix, Time suffix, or The scientific notation
Additional information: link
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#189-192)
Use the external attribute for functions never called from the contract.
Additional information: link
Average PancakeSwap trading volume, liqudity, number of swaps are extremely low. Token seems to be dead.
Token is deployed only at one blockchain
Unable to find PancakeSwap trading pair to compute liquidity.
Unable to find PancakeSwap trading pair to compute volume.
Unable to find PancakeSwap trading pair to compute number of swaps.
Unable to crawl data from the website
BscScan page for the token does not contain additional info: website, socials, description, etc.
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 whitepaper link on the website
Unable to find Telegram link on the website
Unable to find Twitter link on the website
Unable to find token on CoinHunt
Additional information: link
Token has a considerable age, but we're still unable to find its website
Young tokens have high risks of scam / price dump / death
Token has a considerable age, but social accounts / website are missing or have few users
Token has a considerable age, but average PancakeSwap 30d trading volume is low
Young tokens have high risks of price dump / death
Twitter account link seems to be invalid
Unable to find Youtube account
Unable to find Discord account