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🛒 Perdura IP Litigation Series

Preserving Counterfeit Listings

A 10-Point Checklist for Amazon, TikTok Shop, and Temu

Evidence that disappears on takedown cannot be used in court.

  • Capture full listing URL, ASIN/product ID, and seller identification
  • RFC 3161 timestamped screenshots — the international standard for US, EU, UK, JP proceedings
  • SHA-256 hash and authenticate all evidence files
  • Conduct and preserve a test purchase (physical counterfeit evidence)
  • Log evidence in a chain of custody record before any takedown action
  • Platform-specific evidence notes for Amazon, TikTok Shop, and Temu
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Evidence steps
Ten discrete preservation steps — from URL capture to chain of custody logging — each producing a specific artefact that supports enforcement, takedown, and litigation.
RFC 3161
Timestamp standard
The international timestamp standard accepted in US, EU, UK, Germany, Singapore, and Japan proceedings. Applied automatically by Perdura at the moment of every capture.
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Platforms covered
Amazon, TikTok Shop, and Temu — the three highest-volume counterfeit listing platforms in 2026 — each with platform-specific evidence notes.
Key Principle
A counterfeit listing removed via takedown takes all its evidence with it. The ten steps in this checklist must be completed before any enforcement action is initiated — not after.
What's Inside

10 steps. Court-ready evidence.

I Capture the Full Listing URL — complete URL with all query parameters
II Take Timestamped Screenshots — RFC 3161 qualified timestamp at capture
III Record ASIN, Product ID, or SKU — platform-specific identifiers
IV Identify and Document the Seller — profile, ID, ratings, linked accounts
V Preserve Product Images and Video — original resolution, hashed
VI Save the Full Product Description and Title — structured text evidence
VII Document Pricing and Shipping Details — damages calculation support
VIII Conduct and Preserve a Test Purchase — physical counterfeit evidence
IX Hash and Authenticate All Evidence Files — SHA-256 + RFC 3161
X Log Evidence in a Chain of Custody Record — automated with Perdura