DupeScan
Contributors
DupeScan

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Contributors

Top contributors ranked by verified submissions and votes.

Original Contributors

This app builds on a set of foundational data provided by others. Their contribution is appreciated.

Dota 2 neutral creeps

Earn Permanent Benefits

Contribution via voting or submitting duped items earns you XP toward permanent account upgrades. Level up to unlock increasing search budgets and other features.

Cyclop Lookout

Cyclop Lookout

Junior Contributor

  • 40 credits monthly refill
  • 10 searches per week
  • 5% bonus on credit purchases
  • Batch search up to 5 profiles
  • 3 watchlist slots
Weaver Stalker

Weaver Stalker

Contributor

  • 60 credits monthly refill
  • 15 searches per week
  • 7.5% bonus on credit purchases
  • Batch search up to 10 profiles
  • 5 watchlist slots
Stone Guardian

Stone Guardian

Adept Contributor

  • 100 credits monthly refill
  • No weekly search limit
  • 10% bonus on credit purchases
  • Batch search up to 20 profiles
  • 20 watchlist slots
Void Sovereign

Void Sovereign

Senior Contributor

  • 150 credits monthly refill
  • No weekly search limit
  • 15% bonus on credit purchases
  • Batch search up to 30 profiles
  • 30 watchlist slots

How it works

Step 1

Submit & Vote

Submit items or vote on pending submissions. Only verified contributions count toward your XP.

1
Step 1

Submit & Vote

Submit items or vote on pending submissions. Only verified contributions count toward your XP.

Step 2

Stay Consistent

Contribute consistently to maximize your progress. Every verified entry brings you closer to the next level.

2
Step 2

Stay Consistent

Contribute consistently to maximize your progress. Every verified entry brings you closer to the next level.

Step 3

Permanent Benefits

Once you reach a level, your benefits are permanent β€” they never expire, even if you take a break.

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Step 3

Permanent Benefits

Once you reach a level, your benefits are permanent β€” they never expire, even if you take a break.

Step 4

Stack Rewards

Contributor benefits stack with credit purchases. Free budget is consumed first, then your purchased credits kick in.

4
Step 4

Stack Rewards

Contributor benefits stack with credit purchases. Free budget is consumed first, then your purchased credits kick in.

Contribution Guide

Step-by-step walkthrough for finding item data and submitting reports

Asset ID

The current identifier for a specific item copy. Changes after every trade or market sale. Find it by dragging an item to the browser address bar in your Steam inventory. The URL ends with the asset_id.

/inventory#570_2_11153679536

Original ID

The asset_id from when the item first appeared in Steam. Never changes. Retrieved via the Steam API. When multiple items share the same original_id, they are duplicates.

DefIndex

Numeric identifier for the item type in Dota 2's schema. Same across all copies of the same item. Included in the API response. Optional when submitting but helps with display.

Step 1

Find the Asset ID

Open the owner's Steam inventory in a browser. Drag the item into the address bar. The URL will look like:

steamcommunity.com/id/.../inventory#570_2_ASSET_ID

The last number is the asset_id.

Step 2

Get the Original ID

Call the Steam API to retrieve the item's original_id. You'll need a Steam API key and the owner's SteamID64.

https://api.steampowered.com/IEconItems_570/GetPlayerItems/v1?key=YOUR_KEY&steamid=STEAMID64

In the JSON response, find the item by its asset_id. The original_id field is what you need.

Step 3

Identify Duplication

If asset_id β‰  original_id, the item has been traded β€” this is normal.

If you find multiple different items sharing the same original_id, duplication has occurred and the item can be reported.

Step 4

Submit Your Report

Go to the Report Dupes page and submit the asset_id, original_id, and optionally the defindex. Sign in with Steam to submit. Your report will go through community verification before it is used.

Report a Dupe