Add 1209:20BF

Author: zhang-wenchao

1209/20BF/index.md

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+---
+layout: pid
+title: OSKey
+owner: Butterfly
+license: MPL 2.0
+site: https://www.oskey.xyz
+source: https://github.com/butterfly-community/oskey-firmware
+---
+OSKey (Open Source Key) is a fully open-source, non-commercial hardware wallet project. Our first mission is to help you create your own trustless hardware wallet and finally, it will be the key to verifying your identity in the digital world.

org/Butterfly/index.md

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+---
+layout: org
+title: Butterfly
+site: https://github.com/butterfly-community
+---
+We are building core infrastructure connecting blockchain with physical devices.