# Duplicate detection: one post, one creator, one payout

> How SaTT detects reused post links and copied or near-identical captions across creators and pools, and what happens to a duplicate post.

Published by SaTT · Last updated 2026-10-29 · Features · https://satt.com/guides/features/duplicate-detection

## In short

SaTT fingerprints every submitted post: its canonical URL, the exact caption and a near-duplicate signature of the caption. A post URL already submitted by another creator is blocked; copied captions and posts reused across pools are flagged for the owner. The first claimant wins.

## What counts as duplicate content?

[Duplicate content](https://satt.com/guides/glossary#duplicate-content) is any submission that reuses something already submitted. SaTT checks four cases:

| Case | Flag shown to the owner | Effect |
| --- | --- | --- |
| Same post URL, different creator | This post was already submitted by another creator | Blocked, never paid |
| Same post, another pool | The creator submitted this post to another pool too | Flagged for review |
| Identical caption, different creator | Identical caption to another creator’s post | Flagged for review |
| Near-identical caption | Caption almost identical to another post (same pool or another pool) | Flagged for review |

## How does SaTT compare posts?

- **URL**: links are reduced to a canonical form, so tracking parameters or a different URL format do not make a reused post look new.
- **Exact caption**: a hash of the caption text is compared across creators.
- **Near-duplicate caption**: a similarity signature compares captions word by word; two captions with a similarity of 0.8 or more (Jaccard index) are treated as almost identical.

The first creator to submit a given post or caption keeps it. Later matches are flagged or blocked.

## Why does this protect advertisers and creators?

Without it, one viral post could be claimed by several accounts, or a creator could copy a competitor’s caption and collect the same reward. Duplicate detection keeps every payout tied to one original post by one [verified account](https://satt.com/guides/glossary#verified-account).

It is one input of the [anti-fraud score](https://satt.com/guides/features/anti-fraud-scoring), alongside ratio, spike and identity signals.

## How can creators avoid duplicate flags?

- Write your own caption. Use the brief’s hashtags and mentions, but not a copy-pasted paragraph that other creators will also paste.
- Submit each post once, to the pool it was made for.
- Never submit someone else’s post, even a repost of the brand’s own content.

> **Tip:** Advertisers: ask for a personal angle in the brief (“show how you use it”) rather than a fixed text to copy. It produces better posts and fewer caption flags.

## Key takeaways

- A post URL already submitted by another creator is blocked permanently.
- Identical and near-identical captions (similarity 0.8 or more) are flagged for the owner.
- Reusing your own post in a second pool is flagged too.
- The first claimant of a post or caption wins.

## Frequently asked questions

### Can I submit the same video to two different AdPools?

Submitting one post to several pools is flagged as “reused post” and goes to each owner’s review. Make a separate post for each brand.

### The brief gave me a text to paste. Will I be flagged?

Identical captions across creators are flagged for review, not blocked. The owner, who wrote the text, can approve them. Adding a personal sentence avoids the flag.

### What if someone submits my post before me?

Only posts from your own verified account can be paid to you: a post must belong to the account that submits it. Report the case to the pool owner or to SaTT.

## Related guides

- [Anti-fraud scoring: how SaTT flags fake engagement](https://satt.com/guides/features/anti-fraud-scoring)
- [How creators avoid fraud flags on SaTT](https://satt.com/guides/tips/avoid-fraud-flags)
- [Collect user-generated content with pay per post](https://satt.com/guides/use-cases/ugc-content)
- [How to write sponsored posts that perform](https://satt.com/guides/tips/write-posts-that-perform)

## Official pages

- [How SaTT works](https://satt.com/how-it-works)

Glossary: https://satt.com/guides/glossary