Ola Coin Token Logo

OLA [Ola Coin] Token

About OLA

Listings

Token 3 years
CoinGecko 2 years
CoinMarketCap 2 years
white paper

Ola City is a performance-based advertising platform where millions of people can earn money by accomplishing tasks or saving money on daily shopping.

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Laser Scorebeta Last Audit: 8 May 2022

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Token is either risky or in presale. For presale 30+ is a fine score.

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Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)

OlaCoin (#421-662) contract sets array length with a user-controlled value:
- lockList[_receiver].push(item) (#543)
Do not allow array lengths to be set directly set; instead, opt to add values as needed. Otherwise, thoroughly review the contract to ensure a user-controlled variable cannot reach an array length assignment.

Additional information: link


Contract ownership is not renounced (belongs to a wallet)

Contract locking ether found:
Contract OlaCoin (#421-662) has payable functions:
- OlaCoin.fallback() (#582-584)
But does not have a function to withdraw the ether
Remove the payable attribute or add a withdraw function.

Additional information: link

Variable ERC20._balances (#96) is not in mixedCase
Parameter OlaCoin.transfer(address,uint256)._receiver (#505) is not in mixedCase
Parameter OlaCoin.transfer(address,uint256)._amount (#505) is not in mixedCase
Parameter OlaCoin.transferFrom(address,address,uint256)._from (#519) is not in mixedCase
Parameter OlaCoin.transferFrom(address,address,uint256)._receiver (#519) is not in mixedCase
Parameter OlaCoin.transferFrom(address,address,uint256)._amount (#519) is not in mixedCase
Parameter OlaCoin.transferAndLock(address,uint256,uint256)._receiver (#536) is not in mixedCase
Parameter OlaCoin.transferAndLock(address,uint256,uint256)._amount (#536) is not in mixedCase
Parameter OlaCoin.transferAndLock(address,uint256,uint256)._releaseDate (#536) is not in mixedCase
Parameter OlaCoin.burn(uint256)._amount (#578) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

OlaCoin.constructor() (#440-494) uses literals with too many digits:
- quarterMap[27] = 1814400000 (#468)
OlaCoin.constructor() (#440-494) uses literals with too many digits:
- totalCoins = 100000000000 * 10 ** uint256(decimals()) (#482)
OlaCoin.constructor() (#440-494) uses literals with too many digits:
- ERC20.transfer(teamWallet,9000000000 * 10 ** uint256(decimals())) (#485)
OlaCoin.constructor() (#440-494) uses literals with too many digits:
- ERC20.transfer(partnerWallet,9000000000 * 10 ** uint256(decimals())) (#486)
OlaCoin.constructor() (#440-494) uses literals with too many digits:
- ERC20.transfer(serviceWallet,2000000000 * 10 ** uint256(decimals())) (#487)
OlaCoin.constructor() (#440-494) uses literals with too many digits:
- ERC20.transfer(bountyWallet,2000000000 * 10 ** uint256(decimals())) (#488)
OlaCoin.constructor() (#440-494) uses literals with too many digits:
- transferAndLock(serviceWallet,2000000000 * 10 ** uint256(decimals()),quarterMap[i]) (#491)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

OlaCoin.bountyWallet (#426) should be constant
OlaCoin.partnerWallet (#425) should be constant
OlaCoin.serviceWallet (#424) should be constant
OlaCoin.teamWallet (#423) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

ERC20Detailed.constructor(string,string,uint8).name (#391) shadows:
- ERC20Detailed.name() (#400-402) (function)
ERC20Detailed.constructor(string,string,uint8).symbol (#391) shadows:
- ERC20Detailed.symbol() (#407-409) (function)
ERC20Detailed.constructor(string,string,uint8).decimals (#391) shadows:
- ERC20Detailed.decimals() (#414-416) (function)
Rename the local variables that shadow another component.

Additional information: link

OlaCoin.getLockedAmount(address) (#553-562) uses timestamp for comparisons
Dangerous comparisons:
- now < lockList[lockedAddress][j].releaseDate (#556)
Avoid relying on block.timestamp.

Additional information: link

ERC20._burnFrom(address,uint256) (#263-266) is never used and should be removed
SafeMath.div(uint256,uint256) (#45-52) is never used and should be removed
SafeMath.mod(uint256,uint256) (#78-81) is never used and should be removed
SafeMath.mul(uint256,uint256) (#28-40) is never used and should be removed
Remove unused functions.

Additional information: link

Pragma version>=0.4.22<0.6.0 (#1) is known to contain severe issues (https://solidity.readthedocs.io/en/latest/bugs.html)
solc-0.5.2 is not recommended for deployment
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

approve(address,uint256) should be declared external:
- ERC20.approve(address,uint256) (#150-153)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (#178-181)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (#192-195)
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#318-321)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#327-329)
paused() should be declared external:
- Pausable.paused() (#355-357)
pause() should be declared external:
- Pausable.pause() (#369-372)
unpause() should be declared external:
- Pausable.unpause() (#374-377)
name() should be declared external:
- ERC20Detailed.name() (#400-402)
symbol() should be declared external:
- ERC20Detailed.symbol() (#407-409)
burn(uint256) should be declared external:
- OlaCoin.burn(uint256) (#578-580)
getLockedAddresses() should be declared external:
- OlaCoin.getLockedAddresses() (#592-594)
getNumberOfLockedAddresses() should be declared external:
- OlaCoin.getNumberOfLockedAddresses() (#599-601)
getLockedAddressesCurrently() should be declared external:
- OlaCoin.getLockedAddressesCurrently() (#618-629)
getCirculatingSupplyTotal() should be declared external:
- OlaCoin.getCirculatingSupplyTotal() (#649-651)
getBurnedAmountTotal() should be declared external:
- OlaCoin.getBurnedAmountTotal() (#657-659)
Use the external attribute for functions never called from the contract.

Additional information: link

Holders:


Average 30d PancakeSwap liquidity is less than $100. Token is either dead or inactive.


Average 30d number of PancakeSwap swaps is low.


Token has only one trading pair


Token is deployed only at one blockchain


Telegram account link seems to be invalid


Twitter account link seems to be invalid


Unable to find Blog account (Reddit or Medium)


Unable to find Youtube account


Unable to find Discord account


Unable to find token contract audit


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 is not listed at Mobula.Finance

Additional information: link


Young tokens have high risks of scam / price dump / death


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 relatively low CoinGecko rank

Price for OLA