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BTT [BitTorrent] Token

About BTT

Listings

Token 17 months
CoinGecko 8 months
CoinMarketCap 3 years
[CoinGecko] alert: BitTorrent has migrated to a new contract TAFjULxiVgT4qWk6UZwjqwZXTSaGaqnVp4 and redenominated to a ratio of 1:1000. Read more in this article
white paper

BitTorrent was initially conceived by Bram Cohen, a peer-to-peer protocol for users to transfer files around the world. The BitTorrent Token (BTT), a TRC-10 token is created on top of the TRON blockchain platform as a way to extend the capability of BitTorrent. The token is added to introduce some economics feature on BitTorrent for networking, bandwidth, and storage resources to be shared and tradeed.

Some of the other feature that BitTorrent Token (BTT) offers would be BitTorrent Speed. This is whereby BTT tokens can be big in exchange for faster download speed.

List of exchanges trading BTT token can be found at https://www.coingecko.com/en/coins/bittorrent/trading_exchanges

Laser Scorebeta Last Audit: 25 July 2022

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Token seems to be legit.

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Contract locking ether found:
Contract BTT (#1615-1650) has payable functions:
- NativeMetaTransaction.executeMetaTransaction(address,bytes,bytes32,bytes32,uint8) (#770-804)
But does not have a function to withdraw the ether
Remove the payable attribute or add a withdraw function.

Additional information: link

Redundant expression "this (#23)" inContext (#17-26)
Remove redundant statements if they congest code but offer no value.

Additional information: link

EIP712Base.getChainId() (#712-718) uses assembly
- INLINE ASM (#714-716)
ContextMixin.msgSender() (#850-869) uses assembly
- INLINE ASM (#858-864)
Address.isContract(address) (#1199-1208) uses assembly
- INLINE ASM (#1206)
Address._verifyCallResult(bool,bytes,string) (#1344-1361) uses assembly
- INLINE ASM (#1353-1356)
Do not use evm assembly.

Additional information: link

Different versions of Solidity is used:
- Version used: ['0.6.6', '>=0.6.0<0.8.0', '>=0.6.2<0.8.0']
- >=0.6.0<0.8.0 (#5)
- >=0.6.0<0.8.0 (#32)
- >=0.6.0<0.8.0 (#112)
- >=0.6.0<0.8.0 (#329)
- 0.6.6 (#635)
- 0.6.6 (#650)
- 0.6.6 (#664)
- 0.6.6 (#741)
- 0.6.6 (#847)
- >=0.6.0<0.8.0 (#876)
- >=0.6.2<0.8.0 (#1176)
- >=0.6.0<0.8.0 (#1368)
- 0.6.6 (#1585)
- 0.6.6 (#1608)
Use one Solidity version.

Additional information: link

AccessControl._setRoleAdmin(bytes32,bytes32) (#1565-1568) is never used and should be removed
Address._verifyCallResult(bool,bytes,string) (#1344-1361) is never used and should be removed
Address.functionCall(address,bytes) (#1252-1254) is never used and should be removed
Address.functionCall(address,bytes,string) (#1262-1264) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#1277-1279) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#1287-1294) is never used and should be removed
Address.functionDelegateCall(address,bytes) (#1326-1328) is never used and should be removed
Address.functionDelegateCall(address,bytes,string) (#1336-1342) is never used and should be removed
Address.functionStaticCall(address,bytes) (#1302-1304) is never used and should be removed
Address.functionStaticCall(address,bytes,string) (#1312-1318) is never used and should be removed
Address.isContract(address) (#1199-1208) is never used and should be removed
Address.sendValue(address,uint256) (#1226-1232) is never used and should be removed
Context._msgData() (#22-25) is never used and should be removed
Context._msgSender() (#18-20) is never used and should be removed
ERC20._burn(address,uint256) (#574-582) is never used and should be removed
ERC20._setupDecimals(uint8) (#612-614) is never used and should be removed
EnumerableSet.add(EnumerableSet.Bytes32Set,bytes32) (#1020-1022) is never used and should be removed
EnumerableSet.add(EnumerableSet.UintSet,uint256) (#1129-1131) is never used and should be removed
EnumerableSet.at(EnumerableSet.Bytes32Set,uint256) (#1058-1060) is never used and should be removed
EnumerableSet.at(EnumerableSet.UintSet,uint256) (#1167-1169) is never used and should be removed
EnumerableSet.contains(EnumerableSet.Bytes32Set,bytes32) (#1037-1039) is never used and should be removed
EnumerableSet.contains(EnumerableSet.UintSet,uint256) (#1146-1148) is never used and should be removed
EnumerableSet.length(EnumerableSet.Bytes32Set) (#1044-1046) is never used and should be removed
EnumerableSet.length(EnumerableSet.UintSet) (#1153-1155) is never used and should be removed
EnumerableSet.remove(EnumerableSet.Bytes32Set,bytes32) (#1030-1032) is never used and should be removed
EnumerableSet.remove(EnumerableSet.UintSet,uint256) (#1139-1141) is never used and should be removed
SafeMath.div(uint256,uint256) (#244-247) is never used and should be removed
SafeMath.div(uint256,uint256,string) (#299-302) is never used and should be removed
SafeMath.mod(uint256,uint256) (#261-264) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#319-322) is never used and should be removed
SafeMath.mul(uint256,uint256) (#225-230) is never used and should be removed
SafeMath.sub(uint256,uint256) (#210-213) is never used and should be removed
SafeMath.tryAdd(uint256,uint256) (#133-137) is never used and should be removed
SafeMath.tryDiv(uint256,uint256) (#169-172) is never used and should be removed
SafeMath.tryMod(uint256,uint256) (#179-182) is never used and should be removed
SafeMath.tryMul(uint256,uint256) (#154-162) is never used and should be removed
SafeMath.trySub(uint256,uint256) (#144-147) is never used and should be removed
Remove unused functions.

Additional information: link

Pragma version>=0.6.0<0.8.0 (#5) is too complex
Pragma version>=0.6.0<0.8.0 (#32) is too complex
Pragma version>=0.6.0<0.8.0 (#112) is too complex
Pragma version>=0.6.0<0.8.0 (#329) is too complex
Pragma version0.6.6 (#635) allows old versions
Pragma version0.6.6 (#650) allows old versions
Pragma version0.6.6 (#664) allows old versions
Pragma version0.6.6 (#741) allows old versions
Pragma version0.6.6 (#847) allows old versions
Pragma version>=0.6.0<0.8.0 (#876) is too complex
Pragma version>=0.6.2<0.8.0 (#1176) is too complex
Pragma version>=0.6.0<0.8.0 (#1368) is too complex
Pragma version0.6.6 (#1585) allows old versions
Pragma version0.6.6 (#1608) allows old versions
solc-0.6.6 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

Low level call in NativeMetaTransaction.executeMetaTransaction(address,bytes,bytes32,bytes32,uint8) (#770-804):
- (success,returnData) = address(this).call(abi.encodePacked(functionSignature,userAddress)) (#798-800)
Low level call in Address.sendValue(address,uint256) (#1226-1232):
- (success) = recipient.call{value: amount}() (#1230)
Low level call in Address.functionCallWithValue(address,bytes,uint256,string) (#1287-1294):
- (success,returndata) = target.call{value: value}(data) (#1292)
Low level call in Address.functionStaticCall(address,bytes,string) (#1312-1318):
- (success,returndata) = target.staticcall(data) (#1316)
Low level call in Address.functionDelegateCall(address,bytes,string) (#1336-1342):
- (success,returndata) = target.delegatecall(data) (#1340)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

name() should be declared external:
- ERC20.name() (#389-391)
symbol() should be declared external:
- ERC20.symbol() (#397-399)
decimals() should be declared external:
- ERC20.decimals() (#414-416)
totalSupply() should be declared external:
- ERC20.totalSupply() (#421-423)
balanceOf(address) should be declared external:
- ERC20.balanceOf(address) (#428-430)
transfer(address,uint256) should be declared external:
- ERC20.transfer(address,uint256) (#440-443)
allowance(address,address) should be declared external:
- ERC20.allowance(address,address) (#448-450)
approve(address,uint256) should be declared external:
- ERC20.approve(address,uint256) (#459-462)
transferFrom(address,address,uint256) should be declared external:
- ERC20.transferFrom(address,address,uint256) (#477-481)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (#495-498)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (#514-517)
executeMetaTransaction(address,bytes,bytes32,bytes32,uint8) should be declared external:
- NativeMetaTransaction.executeMetaTransaction(address,bytes,bytes32,bytes32,uint8) (#770-804)
getNonce(address) should be declared external:
- NativeMetaTransaction.getNonce(address) (#822-824)
getRoleMemberCount(bytes32) should be declared external:
- AccessControl.getRoleMemberCount(bytes32) (#1459-1461)
getRoleMember(bytes32,uint256) should be declared external:
- AccessControl.getRoleMember(bytes32,uint256) (#1475-1477)
getRoleAdmin(bytes32) should be declared external:
- AccessControl.getRoleAdmin(bytes32) (#1485-1487)
grantRole(bytes32,address) should be declared external:
- AccessControl.grantRole(bytes32,address) (#1499-1503)
revokeRole(bytes32,address) should be declared external:
- AccessControl.revokeRole(bytes32,address) (#1514-1518)
renounceRole(bytes32,address) should be declared external:
- AccessControl.renounceRole(bytes32,address) (#1534-1538)
Use the external attribute for functions never called from the contract.

Additional information: link

Holders:
No disclosed threats


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Token is not listed at Mobula.Finance

Additional information: link

No disclosed threats

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