Every photo is hashed against the whole network the moment it lands. It is mathematically impossible to submit the same bale twice - not by your crew, not by anyone else. Zero ghost tonnage.

Every photo is fingerprinted the moment it is submitted - cropping, re-shooting the print or tweaking pixels does not change the match.
The fingerprint is compared against every photo ever submitted across the whole network, not just your own sites.
A match blocks the submission and flags both records for review. The duplicate never reaches your filing.
Claims only contain material that physically existed once.
The same bale cannot be claimed by two different contractors either.
Your filed tonnage survives the hardest question: did this bale exist, once?
Angle changes are caught by the layered checks: photo fingerprint plus geo, time, kiosk identity and weight coherence. Suspicious near-matches are flagged for human review in the staging vault.
No. Hashing and matching run in the pipeline; honest submissions are unaffected.
Classification can be argued with; a duplicate fingerprint cannot. EPRlog prefers evidence that is mathematically checkable over model opinions.
Tell us about your network and we will walk you through it.