Query regarding `ORACLE_SIGNING_ADDRESS_PRODUCTION` in helpers/constants.ts

[GHexxerBrdv]

I was looking into the method for deploying state contract. And there is

contracts/helpers/constants.ts

Line 11 in 2bffd75

export const LEGACY_ORACLE_SIGNING_ADDRESS_PRODUCTION =

used to first deploy the CROSS_CHAIN_PROOF_VALIDATOR and it is used to deploy the state contract.

I have query about that oracle address. What it is used for and why it has used.Also tell why i am seeing non contract address which checking for that address in block explorer. is that contract or account?