Hello !

Having put this method on my bot to check the Bitcoin signatures, I thought it would be useful to take the opportunity to share this method to everyone !

The purpose of this method is to convert the Bech32 address to a Legacy address.

For this example, I will use my signature.

We agree that if I try to check my signature with the address Bech32, it does not work.



So to start, paste your Bech32 address here and decode it :
-> https://slowli.github.io/bech32-buffer/

With my example, the returned data is "f0113389dea4d5abb74fe9fa4aaaa756f966c86d".



Now, go to this page, and paste the decoded data in the "Converts a BitCoin Hash160 (in Hex) to a valid BitCoin address." input and convert :
-> https://bitcoinvalued.com/tools.php

At this point, I copy the address "1NtMnD5BQrRvVeHDk4HXaGvXiVkUuTjhXf".



And ... It's all, now, use the copied address in signed message like this :


You can now verify your signed message with Brainwallet :



Big thanks to @pooya87 and @hatshepsut93 who helped me understand how to set up this method :
-> https://bitcointalk.org/index.php?topic=5194216.msg52815008#msg52815008
-> https://bitcointalk.org/index.php?topic=5194216.msg52817898#msg52817898

This post in other Language :

• Pilipinas -> https://bitcointalk.org/index.php?topic=5253812.0

And that's all for this little tutorial