Proxy contract is not showing up in testnet arbiscan as verified

:computer: Environment

hardhat version 2.9.3
solidity 0.8.13

I've deployed a proxy contract(UUPS) to arbiscan rinkeby but the contract is not showing up as verified by default. The contract is utilizing solidity 0.8.13. I'm able to verify the implementation contract successfully.

If I go to https://testnet.arbiscan.io/proxyContractChecker , it says The proxy contract at [my address] does not seem to be verified.

I've seen this thread that mentions if a proxy is not verified to verify using Solc JSON input , but I'm unsure how to do that.

any ideas?

thanks.

fyi I asked on arbirtrum discord and it turns out this functionality is not supported in testnet.