I like multisig. I really like multisig that doesn't look like multisig on chain: things like MuSig2 and FROST. This is taking it to a whole new level (which is probably not something an individual would ever need):

we propose NestedMuSig2, a recursive variant of MuSig2 that enables a tree of nested cosigners to privately generate aggregate Schnorr signatures while maintaining all of the efficiency and security benefits of MuSig2, including non-interactive public key aggregation. Nested signers in this scheme cannot distinguish between cosigners that are using further nesting and those that are not. In particular, this means that NestedMuSig2 is compatible with all existing protocols that use MuSig2.

However, I wonder what kind of fancy tricks people are going to figure out using fun cryptography with keys to do logic on the ownership of UTXOs (

bitcoin

I like multisig. I really like multisig that doesn't look like multisig on chain: things like MuSig2 and FROST. This is taking it to a whole new level (which is probably not something an individual would ever need):

> we propose NestedMuSig2, a recursive variant of MuSig2 that enables a tree of nested cosigners to privately generate aggregate Schnorr signatures while maintaining all of the efficiency and security benefits of MuSig2, including non-interactive public key aggregation. Nested signers in this scheme cannot distinguish between cosigners that are using further nesting and those that are not. In particular, this means that NestedMuSig2 is compatible with all existing protocols that use MuSig2.

However, I wonder what kind of fancy tricks people are going to figure out using fun cryptography with keys to do logic on the ownership of UTXOs (https://stacker.news/items/1421507/r/Scoresby).