Question about DBR for the Bronze Silo Art trail Challenge

[Roadbandit]

I note the rules require a DBR to prove you're in the area. Makes sense for everything silver and up as there is a time limit requirement.
Given that there is no time limit on the bronze challenge, is there a requirement for a DBR given that it may take many months to gather 45 silo arts?

I may or may not have been a bit tardy about gathering DBR's on my last trip

 

[EricV]

You might ask in this THREAD.

 

[Roadbandit]

Moved conversation as suggested.