https://paritytech.github.io/polkadot-sdk/master/sp_application_crypto/bls381/type.ProofOfPossession.html
ProofOfPossession in sp_application_crypto::bls381 - Rust
BLS12-381 Proof Of Possesion.
spapplicationcryptorust
https://paritytech.github.io/polkadot-sdk/master/sp_core/bls/type.ProofOfPossession.html
ProofOfPossession in sp_core::bls - Rust
A generic BLS ProofOfpossession
spcoreblsrust