How to get the PS_DB_OPRID.PS_OPRID over a migration report? (4301405)

As part of audit process, the auditors need the evidence of the PS_OPRID which internally being used by Stat for migration of project. As we are aware that this ID is configured under Peoplesoft options, are there any logs or any query which we can run to determine whether this ID is being used internally for migration and not the Stat migrator ID? Currently I used the below query, but it shows the Stat migrator ID and not the internal PS_OPRID being used for Peoplesoft:

select M.*, L.* from CSR_MIGRATION as M

left outer join CSR_MIGRATION_LOG AS L ON (M.MIGR_ID = L.MIGR_ID)

We need an evidence that the previous migrations have been done using this PS_OPRID that we configured under Peoplesoft Options.