Bitchat has a signature verification feature as well.

GitHub

bitchat/WHITEPAPER.md at main · permissionlesstech/bitchat

bluetooth mesh chat, IRC vibes. Contribute to permissionlesstech/bitchat development by creating an account on GitHub.

So would you think Bitchat is an evolution of (bluetooth) mesh messengers. Or a complete new innovation? Honest question bc I am always somewhat skeptical when a new freedom thing gets hyped by msm fast. https://www.forbes.com/sites/davidbirnbaum/2025/07/31/can-bitchat-build-a-free-internet-with-bitcoin/