Submission Statement: I was browsing Handshake repos on github and noticed a pull request that added sign/verify [1] on the Bob Extension [2] on Github. This piqued my interested, and of course, it was time to hack away again.
The result is applause [3] which lets you post and applaud (sign) your and other people's messages. This website does not require a login or signup because it uses the decentralized Handshake [4] blockchain.
It's open source on github [5] and mixes Web 2 and Web 3 together causing some interesting benefits.
Hope you like it!
[1] https://github.com/kyokan/bob-extension/pull/15
[2] https://github.com/kyokan/bob-extension
[3] https://applause.chat
[4] https://handshake.org/
[5] https://github.com/publiusfederalist