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In the JUSTTRON Smart-Contract were found no vulnerabilities, no backdoors and no scam scripts.

The code was tested with compatible compilers and simulate manually reviewed for all commonly known and specific vulnerabilities.

So JUSTTRON Smart-Contract is safe for use in the Tron main network.



This audit is only for the JUSTTRON smart contract codes base on the below-specified address only.


The audit makes no statements or warranties about the suitability or sustainability of the business model or regulatory regime for the business model. Do take into consideration that you are doing all financial actions & transactions at your own risk, especially if you are dealing with high-risk projects / Dapps.

CRITICAL ISSUES (critical, high severity): 0

Critical and harmful access for owners, user block ability, Bugs and vulnerabilities that enable theft of funds, lock access to funds without possibility to restore it, or lead to any other loss of funds to be transferred to any party.

ERRORS, BUGS AND WARNINGS (medium, low severity): 0

Bugs can negatively affect the usability of a program, errors that can trigger a contract failure, Lack of necessary security precautions, other warnings for owners and users, warning codes that are valid code but the compiler thinks are suspicious.

OPTIMIZATION (low severity): 0

Methods to decrease the cost of transactions in Smart-Contract.

RECOMMENDATIONS (very low severity): 2

Hint and tips to improve contract functionality and trustworthy.

Optimization suggestions

1- Direct Transfer TRX to Contract (low severity).

If a user transfer TRX directly to contract address and the user has no active upline, the amount adds to contract balance but deposit does not act.


This comment is relevant only if a user does not use the contract deposit function and transfer amount directly to the contract address

2- Unused Variable

“permanent_top” is defined and does not use in contract. It is better to remove it.

Note: this issue doesn’t affect the main functionality and security of the smart-contract.

Independent description of the smart-contract functionality

The JUSTTRON smart-contract provides the opportunity to invest at least 50 TRX in the contract and get a 400% return on investment if the contract balance has enough funds for payment.

  • Dividends are paid from deposits of users.
  • All dividends are calculated at the moment of request and available for withdrawal at any time.
  • All investment keeps in one deposit.

Contract Owners Fee

future_fund:   3%

admin_fee:    2%

promo_fund:    2%


Basic bonus is 1.2% daily. A User can get 400% return totally.

There is limits to deposit

  • First Deposit                    min: 50 TRX and max: 100,000 TRX
  • Second Deposit              min: Current Deposit and max: 300,000 TRX
  • Third Deposit                   min: Current Deposit and max: 900,000 TRX
  • 4th and next Deposit      min: Current Deposit and max: 2,000,000 TRX

This contract has 4 methods to earn 400% return sooner.

  • Basic Bonus
  • Referral System (Direct Bonus)
  • Referral System (Match Bonus)
  • Top Leader Pool

Basic Bonus

Basic bonus of contract is 1.2% daily

Referral System (Direct Bonus)

This contract paid 10% referrals in one level.


  • Referral should be an active user, it means referral address has at least one deposit.
  • Referrer is specified once at the time of the first deposit and is assigned to the user without the possibility of changing. From each subsequent Deposit, the referrer will get his percent.

Referral System (Match Bonus)

In this contract user can get profit from his referrals withdraw in 10 level.

  • User need 20 direct referrals to active all this levels, each level need one direct referral to be active.
Match bonus3010853

Top Leader Pool

There is a pool which 3% of all deposits added to this pool. Every 24 hours it will be rewarded to top 10 leaders which have more direct referral amount.

  • 3% of all deposits add to the pool
  • Every 24 hours 10% of pool rewarded to top leaders
  • Remain pool balance transfer to the next day
  • Top leaders sorted by their direct referral amounts

JUSTTRON Smart-Contract Functions

  • Constructor: initial owners addresses and initial ref bonuses and pool bonuses and deposit limits
  • Function payable: this function handle direct was sent amount and call _deposit to make a new deposit.
  • _setUpline: update referral and uplines
  • _deposit: make a new deposit
  • _pollDeposits: add 3% to pool and update top list
  • __refPayout: update upline referrals on withdraw
  • _drawPool: run every 24h and reward top list
  • deposit: call _setUpline and _invest and make a new deposit
  • maxPayoutOf: return max return of investment
  • payoutOf: return daily 1.2% profit of invests
  • _ userInfo: return user information like upline and profits
  • _ userInfoTotals: return user stats
  • contractInfo: return contract info
  • poolTopInfo: return top list of leaders
  • getOwner: only can be called by owner and return owner
  • getPromoFund: : only can be called by owner and return promo_fund
  • getFutureFund: : only can be called by owner and return future_fund
  • getAdmin: : only can be called by owner and return admin_fee

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