The Pitch Record can be found on the Operator Portal and is the user interface many use daily.
Clicking into the 'Pitch' will give you the ability to add pitch information manually. It also shows you who created the Pitch as well as when it was last updated and by whom.
This can be confusing if you have pitch details sent via the pitchdetails/record_details API. In this case, you cannot manually edit any of the details that have been sent via the API (scrap, demand, operator count, actual) from this Pitch Record. To see the actual details for the Pitch, click into the pitch and then select 'Details'. This will bring up a new screen with the details for each API call for that Pitch. The Operator Portal shows you the sum of all of the pitch details for that given Pitch, while the Pitch Details view breaks it down into each API call made for that Pitch.
In the screenshot above, you'll see three API calls were made to update that Pitch Record. If you click into one of those 'Pitch Details' you'll be able to edit information and see who updated it and when. In most instances, the username associated will have some form of API in it.