# Calculation of Signature

**URL:** <https://community.rapyd.net/t/calculation-of-signature/288>\
**Category:** 🙋🏽‍♀️🙋🏽‍♂️ Ask Questions\
**Created:** [May 25, 2021, 6:59pm UTC](https://community.rapyd.net/t/calculation-of-signature/288 "2021-05-25T18:59:25Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![Community\_Team](https://avatars.discourse-cdn.com/v4/letter/c/46a35a/32.png) [@Community\_Team](https://community.rapyd.net/u/Community_Team)\
**Post date:** [November 2, 2022, 3:27pm UTC](https://community.rapyd.net/t/calculation-of-signature/288/4 "2022-11-02T15:27:31Z")

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Hi @Berenberfin,

If you have checked the signature request above,

You can follow some of these videos

https://www.youtube.com/embed/IUqDc4Siq70?feature=oembed&wmode=opaque&list=PLZA21iLV3paQnWxnSAHcSI_1yiOILrHqn

or make sure you aren’t catching these mistakes

> [@How to verify Webhook Signature with PHP script](https://community.rapyd.net/t/how-to-verify-webhook-signature-with-php-script/1382/5):
>
> Just an update here - after asking around a lot, I discovered that there are 2 issues that can mess up the string that is hashed: All spaces and other whitespace outside of strings must be removed. Numbers should be sent in strings, not as numbers.

Here’s also our github you can use as well:

> **[GitHub - Rapyd-Samples/accept-payments: Explore top payment methods to learn...](https://github.com/Rapyd-Samples/accept-payments)**
>
> Explore top payment methods to learn how you can build with Rapyd in a single integration offering customers their preferred local payment features. - GitHub - Rapyd-Samples/accept-payments: Explo...

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