Zeptagram is a multi-blockchain based trading platform where intellectual property owners can tokenize their assets as NFTs and dNFTs. Zeptagram’s goal is to become a leading trading exchange for music and IP-rights.
Zeptagram makes it possible for the artists to finance their creation and list their music rights. Music fans and investors can invest in music rights and get a return when the music is played in e.g., radio, television, streamed on Spotify and Youtube or used in movies. Investing in music rights is as easy as investing in stocks thanks to Zeptagram.
The blockchain-based platform enables secure and easy tracking of the music rights and distribution of the royalty income to the owners of music rights listed on the platform. The platform is available as a web platform and a mobile platform for Android and iOS. Zeptacoin will be the main utility token on the trading platform.
Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
Contract locking ether found:
Contract TeleportToken (#201-478) has payable functions:
- TeleportToken.receive() (#466-468)
But does not have a function to withdraw the ether
Remove the payable attribute or add a withdraw function.
Additional information: link
TeleportToken.updateThreshold(uint8) (#440-450) should emit an event for:
- threshold = newThreshold (#444)
TeleportToken.updateChainId(uint8) (#452-461) should emit an event for:
- thisChainId = newChainId (#455)
Emit an event for critical parameter changes.
Additional information: link
Owned.transferOwnership(address)._newOwner (#161) lacks a zero-check on :
- newOwner = _newOwner (#162)
Check that the address is not zero.
Additional information: link
TeleportToken.verifySigData(bytes) (#361-399) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp < SafeMath.add(td.ts,(60 * 60 * 24 * 30)),Teleport has expired) (#393)
Avoid relying on block.timestamp.
Additional information: link
Verify.splitSignature(bytes) (#31-55) uses assembly
- INLINE ASM (#42-49)
TeleportToken.stringToBytes32(string) (#350-359) uses assembly
- INLINE ASM (#356-358)
TeleportToken.verifySigData(bytes) (#361-399) uses assembly
- INLINE ASM (#373-381)
Do not use evm assembly.
Additional information: link
Oracled.unregOracle(address) (#190-194) compares to a boolean constant:
-require(bool,string)(oracles[_remOracle] == true,Oracle is not registered) (#191)
Oracled.onlyOracle() (#178-182) compares to a boolean constant:
-require(bool,string)(oracles[msg.sender] == true,Account is not a registered oracle) (#179)
Remove the equality to the boolean constant.
Additional information: link
Endian.reverse16(uint16) (#85-90) is never used and should be removed
SafeMath.div(uint256,uint256) (#109-112) is never used and should be removed
SafeMath.mul(uint256,uint256) (#105-108) is never used and should be removed
Remove unused functions.
Additional information: link
Parameter Owned.transferOwnership(address)._newOwner (#161) is not in mixedCase
Parameter Oracled.regOracle(address)._newOracle (#184) is not in mixedCase
Parameter Oracled.unregOracle(address)._remOracle (#190) is not in mixedCase
Variable TeleportToken._totalSupply (#207) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
totalSupply() should be declared external:
- ERC20Interface.totalSupply() (#121)
- TeleportToken.totalSupply() (#247-249)
balanceOf(address) should be declared external:
- ERC20Interface.balanceOf(address) (#122)
- TeleportToken.balanceOf(address) (#255-257)
allowance(address,address) should be declared external:
- ERC20Interface.allowance(address,address) (#123)
- TeleportToken.allowance(address,address) (#310-312)
transfer(address,uint256) should be declared external:
- ERC20Interface.transfer(address,uint256) (#124)
- TeleportToken.transfer(address,uint256) (#265-270)
approve(address,uint256) should be declared external:
- ERC20Interface.approve(address,uint256) (#125)
- TeleportToken.approve(address,uint256) (#281-285)
transferFrom(address,address,uint256) should be declared external:
- ERC20Interface.transferFrom(address,address,uint256) (#126)
- TeleportToken.transferFrom(address,address,uint256) (#297-303)
receiveApproval(address,uint256,address,bytes) should be declared external:
- ApproveAndCallFallBack.receiveApproval(address,uint256,address,bytes) (#139)
transferOwnership(address) should be declared external:
- Owned.transferOwnership(address) (#161-163)
acceptOwnership() should be declared external:
- Owned.acceptOwnership() (#165-170)
regOracle(address) should be declared external:
- Oracled.regOracle(address) (#184-188)
unregOracle(address) should be declared external:
- Oracled.unregOracle(address) (#190-194)
approveAndCall(address,uint256,bytes) should be declared external:
- TeleportToken.approveAndCall(address,uint256,bytes) (#320-325)
teleport(string,uint256,uint256) should be declared external:
- TeleportToken.teleport(string,uint256,uint256) (#336-344)
claim(bytes,bytes[]) should be declared external:
- TeleportToken.claim(bytes,bytes[]) (#401-438)
updateThreshold(uint8) should be declared external:
- TeleportToken.updateThreshold(uint8) (#440-450)
updateChainId(uint8) should be declared external:
- TeleportToken.updateChainId(uint8) (#452-461)
transferAnyERC20Token(address,uint256) should be declared external:
- TeleportToken.transferAnyERC20Token(address,uint256) (#474-476)
Use the external attribute for functions never called from the contract.
Additional information: link
BscScan page for the token does not contain additional info: website, socials, description, etc.
Additional information: link
Unable to find token/project description on the website or on BscScan, CoinMarketCap
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 token on CoinHunt
Additional information: link
Young tokens have high risks of scam / price dump / death
Young tokens have high risks of price dump / death
Young tokens have high risks of price dump / death
Telegram account has relatively few subscribers
Last post in Twitter was more than 30 days ago
Unable to find Blog account (Reddit or Medium)
Unable to find Youtube account