JUMPN is a web 3.0 lifestyle app that implements the jump-to-earn concept. JUMPN is designed to bring happiness back to people through three dimensions: social connections, physical health, and, most importantly, income. Users of JUMPN will gain a high return of $JST through ‘Jumping.’ There are several modes, including solo mode, clubbing mode, and extreme sports mode, which contain different rewards levels.
The JUMP SATOSHI TOKEN is the GOVERNANCE TOKEN of JUMPN. Players will be rewarded with JST token in JUMPN app.
Contract creator or owner is blacklisted for past scams
Contract locking ether found:
Contract JST (#1365-1383) has payable functions:
- AccessControl.constructor() (#942-945)
- AccessControl.fallback() (#1029)
- AccessControl.receive() (#1030)
But does not have a function to withdraw the ether
Remove the payable attribute or add a withdraw function.
Additional information: link
GovernanceDAO._writeCheckpoint(address,uint32,uint256,uint256) (#1235-1253) uses a dangerous strict equality:
- nCheckpoints > 0 && checkpoints[delegatee][nCheckpoints - 1].fromBlock == blockNumber (#1245)
Don't use strict equality to determine if an account has enough Ether or tokens.
Additional information: link
ERC20TokenImplementation._approve(address,address,uint256).owner (#1341) shadows:
- Ownable.owner() (#532-534) (function)
Rename the local variables that shadow another component.
Additional information: link
Modifier AccessControl.safeCheck() (#930-936) does not always execute _; or revert
All the paths in a modifier must execute _ or revert.
Additional information: link
GovernanceDAO.delegateBySig(address,uint256,uint256,uint8,bytes32,bytes32) (#1080-1121) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(now <= expiry,GovernanceDAO: delegateBySig: signature expired) (#1119)
Avoid relying on block.timestamp.
Additional information: link
AccessControl.accessRole() (#990-994) uses assembly
- INLINE ASM (#991-993)
Address.isContract(address) (#189-198) uses assembly
- INLINE ASM (#196)
AccessControl.referee() (#959-961) uses assembly
- INLINE ASM (#960)
Address._functionCallWithValue(address,bytes,uint256,string) (#282-303) uses assembly
- INLINE ASM (#295-298)
AccessControl.getRoleReferee(address) (#963-972) uses assembly
- INLINE ASM (#964-971)
Initializable._isConstructor() (#479-490) uses assembly
- INLINE ASM (#488)
GovernanceDAO.getChainId() (#1123-1127) uses assembly
- INLINE ASM (#1125)
AccessControl._revokeRole(bytes32,address) (#1021-1027) uses assembly
- INLINE ASM (#1024-1026)
GovernanceDAO.__approve(address,address,uint256) (#1220-1228) uses assembly
- INLINE ASM (#1225-1227)
AccessControl._setupRole(bytes32,address) (#1002-1008) uses assembly
- INLINE ASM (#1005-1007)
Do not use evm assembly.
Additional information: link
Pragma version^0.6.0 (#6) allows old versions
Pragma version^0.6.0 (#1259) allows old versions
Pragma version^0.6.0 (#495) allows old versions
Pragma version^0.6.0 (#335) allows old versions
Pragma version^0.6.0 (#309) allows old versions
Pragma version>=0.6.0<0.8.0 (#871) is too complex
Pragma version>=0.4.24<0.7.0 (#432) allows old versions
Pragma version>=0.6.0<0.8.0 (#572) 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
Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#282-303):
- (success,returndata) = target.call{value: weiValue}(data) (#286)
Low level call in Address.sendValue(address,uint256) (#216-222):
- (success) = recipient.call{value: amount}() (#220)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence
Additional information: link
Ownable.__gap (#566) is never used in JST (#1365-1383)
Remove unused state variables.
Additional information: link
Different versions of Solidity are used:
- Version used: ['0.6.12', '>=0.4.24<0.7.0', '>=0.6.0<0.8.0', '^0.6.0']
- ^0.6.0 (#6)
- 0.6.12 (#166)
- ^0.6.0 (#309)
- ^0.6.0 (#335)
- >=0.4.24<0.7.0 (#432)
- ^0.6.0 (#495)
- >=0.6.0<0.8.0 (#572)
- >=0.6.0<0.8.0 (#871)
- ^0.6.0 (#1259)
Use one Solidity version.
Additional information: link
Redundant expression "this (#327)" inContext (#321-330)
Remove redundant statements if they congest code but offer no value.
Additional information: link
SafeMath.mul(uint256,uint256) (#80-92) is never used and should be removed
EnumerableSet.length(EnumerableSet.Bytes32Set) (#740-742) is never used and should be removed
EnumerableSet.at(EnumerableSet.Bytes32Set,uint256) (#754-756) is never used and should be removed
Address.sendValue(address,uint256) (#216-222) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#267-269) is never used and should be removed
AccessControl.revokeRole(bytes32,address) (#984-988) is never used and should be removed
ERC20TokenImplementation._transfer(address,address,uint256) (#1307-1314) is never used and should be removed
EnumerableSet.remove(EnumerableSet.UintSet,uint256) (#835-837) is never used and should be removed
EnumerableSet.contains(EnumerableSet.Bytes32Set,bytes32) (#733-735) is never used and should be removed
AccessControl._grantRole(bytes32,address) (#1015-1019) is never used and should be removed
ERC20TokenImplementation._approve(address,address,uint256) (#1341-1347) is never used and should be removed
AccessControl._setRoleReferee(bytes32,bytes32) (#1010-1013) is never used and should be removed
EnumerableSet.contains(EnumerableSet.UintSet,uint256) (#842-844) is never used and should be removed
EnumerableSet.remove(EnumerableSet.AddressSet,address) (#780-782) is never used and should be removed
AccessControl.renounceRole(bytes32,address) (#996-1000) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#158-161) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#277-280) is never used and should be removed
SafeMath.div(uint256,uint256,string) (#122-128) is never used and should be removed
EnumerableSet.add(EnumerableSet.Bytes32Set,bytes32) (#716-718) is never used and should be removed
AccessControl.grantRole(bytes32,address) (#978-982) is never used and should be removed
Context._msgData() (#326-329) is never used and should be removed
SafeMath.mod(uint256,uint256) (#142-144) is never used and should be removed
EnumerableSet._add(EnumerableSet.Set,bytes32) (#623-633) is never used and should be removed
SafeMath.div(uint256,uint256) (#106-108) is never used and should be removed
EnumerableSet.length(EnumerableSet.UintSet) (#849-851) is never used and should be removed
AccessControl._revokeRole(bytes32,address) (#1021-1027) is never used and should be removed
Address._functionCallWithValue(address,bytes,uint256,string) (#282-303) is never used and should be removed
AccessControl._setupRole(bytes32,address) (#1002-1008) is never used and should be removed
EnumerableSet.at(EnumerableSet.UintSet,uint256) (#863-865) is never used and should be removed
Address.functionCall(address,bytes,string) (#252-254) is never used and should be removed
EnumerableSet.add(EnumerableSet.AddressSet,address) (#770-772) is never used and should be removed
EnumerableSet._remove(EnumerableSet.Set,bytes32) (#641-673) is never used and should be removed
EnumerableSet.add(EnumerableSet.UintSet,uint256) (#825-827) is never used and should be removed
EnumerableSet.remove(EnumerableSet.Bytes32Set,bytes32) (#726-728) is never used and should be removed
Address.functionCall(address,bytes) (#242-244) is never used and should be removed
Remove unused functions.
Additional information: link
Function ERC20TokenImplementation.Approve(address,uint256) (#1323-1326) is not in mixedCase
Variable Ownable.__gap (#566) is not in mixedCase
Function GovernanceDAO.__approve(address,address,uint256) (#1220-1228) is not in mixedCase
Variable ERC20TokenImplementation._symbol (#1267) is not in mixedCase
Function Ownable.__Ownable_init_unchained() (#522-526) is not in mixedCase
Variable ERC20TokenImplementation._decimals (#1269) is not in mixedCase
Variable ERC20TokenImplementation._name (#1268) is not in mixedCase
Variable GovernanceDAO._delegates (#1042) is not in mixedCase
Variable ERC20TokenImplementation._allowances (#1265) is not in mixedCase
Variable ERC20TokenImplementation._balances (#1266) is not in mixedCase
Function Ownable.__Ownable_init() (#518-520) is not in mixedCase
Variable ERC20TokenImplementation._totalSupply (#1270) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#551-554)
Approve(address,uint256) should be declared external:
- ERC20TokenImplementation.Approve(address,uint256) (#1323-1326)
initialize() should be declared external:
- JST.initialize() (#1375-1381)
getRoleMemberCount(bytes32) should be declared external:
- AccessControl.getRoleMemberCount(bytes32) (#951-953)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#560-564)
getRoleMember(bytes32,uint256) should be declared external:
- AccessControl.getRoleMember(bytes32,uint256) (#955-957)
Use the external attribute for functions never called from the contract.
Additional information: link
Attempt to swap token was unsuccessful. For some reason it is untradeable. If token is not in presale stage and is not traded outside PancakeSwap, then it's a scam
Additional information: link
Contract has 0% buy tax and 100% sell tax.
Taxes are extremely high (over 30%)
Additional information: link
Average 30d PancakeSwap liquidity is less than $100. Token is either dead or inactive.
Average 30d PancakeSwap volume 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.
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 token on CoinGecko
Additional information: link
BscScan page for the token does not contain additional info: website, socials, description, etc.
Additional information: link
Token was delisted (assigned to inactive / untracked listing) from CoinMarketCap
Additional information: link
Token is not listed at Mobula.Finance
Additional information: link
Unable to find token on CoinHunt
Additional information: link
Unable to verify token contract address 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
Token is marked as scam (rug pull, honeypot, phishing, etc.)
Additional information: link
Token has no active CoinGecko listing / rank
Token has no active CoinMarketCap listing / rank
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