# Are transaction signatures unique?

**URL:** <https://forum.algorand.co/t/are-transaction-signatures-unique/10173>\
**Category:** General\
**Tags:** teal, smart-contracts\
**Created:** [August 12, 2023, 4:59pm UTC](https://forum.algorand.co/t/are-transaction-signatures-unique/10173 "2023-08-12T16:59:53Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![Starscream](https://avatars.discourse-cdn.com/v4/letter/s/3da27b/32.png) [@Starscream](https://forum.algorand.co/u/Starscream)\
**Post date:** [August 14, 2023, 3:55pm UTC](https://forum.algorand.co/t/are-transaction-signatures-unique/10173/7 "2023-08-14T15:55:36Z")

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Would you happen to know exactly what the formula is? I can’t seem to find it anywhere.

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