nostr-java on Nostr: #[0]

quoting nevent1q…qkef

Use Flexible Round Optimized Schnorr Threshold (FROST) signatures to create a joint nostr account with your friends.

FROST is a threshold multisignature (t-of-n), so to make a post/event you require t parties to individually sign and contribute signature shares. These signature shares are then combined into a single schnorr signature which is valid under the joint public key.

https://github.com/nickfarrow/frostr