Monthly Archives: January 2019

Case Study – The Missing TRX

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A Reddit user found a Dapp called FomoSports and played it. He then saw that he was missing 80 TRX, that could not be justified in any way.

This is his address: TBhLhTP4Mscgj5gpMxfe6u1zsWQ3DzEGMi

How he explained it with his own words:
a) The deal is open a Tronlink wallet to receive 50 TRX to play, and after betting let person know to get another 100TRX.
b) My friend lost the 30TRX of the 50TRX then received another 100TRX. Then he played another 10×3 (30TRX) should have 90TRX left.
c) However, my friend told me that he only have 10TRX left in his Tronlink.

It is shown in these 3 screenshots below.

Transfers

 Transfers. 50+100 = 150 TRX

 

Transactions

Transactions. This is the SUM of the amounts +50 -20 -10 +100 -10 -10 -10 = 90

 

final amount

Final amount in the Tronlink Wallet = 10 TRX

 

This is what happened:

This is because of the energy fees.  The conversion values are listed below.

1 SUN = 0.000001 TRX
1 TRX = 1,000,000 SUN

Let’s break it down and look at the contract triggers on TronGrid.

Transaction 1: SUCCESSFUL(-20TRX) with Fee 2.869300 TRX

"energy_fee": 2869300

Transaction 2: SUCCESSFUL(-10TRX) with Fee 3.581450 TRX

"energy_fee": 3581450

Transaction 3: TIMED OUT with Fee 100TRX

"energy_fee": 100000000

Transaction 4: OUT OF ENERGY with Fee 3.549250 TRX

"energy_fee": 3549250

Transaction 5: OUT OF ENERGY with Fee 0TRX (no funds left)

"result": "OUT_OF_ENERGY"

Let’s sum it all up:
20 + 2.8693 + 10 + 3.58145 + 100 + 3.54925 = 140TRX

+10TRX still left in account = 150TRX (all accounted for)

The loss is mainly due to the 3rd contract trigger where the out of time exception occurred and this causes all the input energy to be spent as seen above. This seems very unfair because the actual running of said contract didn’t actually use that much energy (judging by the origin_energy_usage it should’ve been more like 4TRX charged).

The timed out with 100 TRX Fee was unexpected. This seems like a way for TRON to punish people for trying to run smart contracts that take too long to execute. Either that or it’s a bug in java-tron. You as a end user have no control over the smart contract and how it executes as it’s running on the Nodes of the super representatives.

Dapps/Project funding

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Good morning fellow Tron enthusiasts !

As you know we have some exciting projects that we are working on and these need money. Historically speaking now with almost 174K votes we earn too less (12 TRX/day as total vote rewards) to fund the Dapp fund, so I thought how I can accelerate this a bit.

Screenshot from Tronstation

Vote rewards 18012019

Vote rewards 18.01.2019 (10:50 AM)

 

So how can we make the DAPP fund bigger ?

a) First contribution, of course, out of my own pocket.

The TronLabs Romania main SR account has 2000 Tron Power. This is because I’ve kept 2000 TRX frozen and have cast a vote for Cryptogirls till the end of year 2018. My first TRX that I ever received was 200 TRX (the bounty they promised) when I’ve attended their local meetup in Bucharest. When I later purchased my own in July, I’ve promised Irina that they will have 2000 Votes from me, till the end of the year. This promise I’ve kept till the 2nd of January 2019.

Since then, the same amount was used to vote for ourselves and according to what I’ve written above my plan is to pump this amount into the Dapp Fund as it’s first funding and to show that we are all in and need to lead by example. This is the HASH of the transfer. As details I’ve used “Project: TRLANY” (it can be used for any project).

b) though other contributions from fellow tron enthusiasts. If you wish to help, please donate into the Tron DAPP Development fund – TXgbWCjqoM7QKSntXW9t1d9eoA3j9JUhCG and remember to add the Project ID Code into the Transaction Details so we can differentiate what it is for. Please check each Project page for more details.

Update 25.05.2020
Today all the voting rewards that were accumulated by the SR Candidate until now (5636 TRX) will be claimed and sent to the Tron DAPP Development fund. Let’s face it, there were no donations made by anyone, in the last 18 month and the money did not multiply a lot. The 2000 TRX made 65 TRX voting rewards in the same time frame of 18 months. The DAPP Funds needs more, as the projects need to be worked on and I will have to pump every cent.