How to verify gas sponsored transactions
This guide will show you how to verify gas sponsored transactions
Background
As the current status of VRC25 standard, a few partner or users had been issued the token successfully. However, they are unable to regconize whether their transactions had been applied for ZeroGas or not. Hence this article is a guidance for how can they ensure that they applied the ZeroGas successfully.
Prerequisite
Assumed that the Token had been applied succesfully. If the token had not been created or not event apply it. Then kindly follow the guidance as here: https://docs.viction.xyz/developer-guide/integration/vic-zerogas-integration
If the token had been issue via VicIssuer, then you can follow this guidance:How to issue token, apply ZeroGas & testing on Viction Blockchain Testnet
Getting Started
As the following image, the. user issued the token successfully. However, they know how to rectify whether the transaction is zero gas or not.
New Issued Token contract: https://testnet.vicscan.xyz/address/0x4ff96908a19a2AF0E70404eF6Bc0925C0e43700A#code
VicIssuer Apply Tx: https://testnet.vicscan.xyz/tx/0xde1aa5624aa5ab025b2b65c0a5c278b3791e930d79aaa3fedfb74d01aa133cba
Step to verify with the example Tx: 
VIC Scan - The most intuitive Viction explorer
In the example Tx we would notice a few following detail:
Tx Type: Gas Sponsored
Sender : 0xCc48C437020B17D881C719Ff53DF4e56022Fb61A
Receiver: 0xaa3984428fe62211c6485165c30584507175B3fb
Fee Payer (Token contract address): 0x4ff96908a19a2AF0E70404eF6Bc0925C0e43700A
As we can see, The Fee payer now is neither Sender or recepient. It is the token contract address, which means that the token had been registered for ZeroGas successfully.
For further testing, you can vist the VRCIssuer contract to figure whether the token is registered or not & the amout of sponsored fund is remaining by querying the token address.
Testnet: https://testnet.vicscan.xyz/address/0x8c0faeb5c6bed2129b8674f262fd45c4e9468bee
Mainnet: https://www.vicscan.xyz/address/0x8c0faeb5c6bed2129b8674f262fd45c4e9468bee
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