usually, in batch jobs, you have a referenceId e.g. producId, queryId etc. not only the targetUrl
it would be nice if a scraper run request have a parameter like "reference" (e.g. string with len 100) and the value will returned in the result for reference what todo with the result
the url is usually not the internal reference
at time I encode the internal reference id and add it to as ancor #534554 to the url ... (will not presented to the server) but i got the information back in the result (as url and can extract the id)