How Does the PoS Part of PoA Select the Signing Validators?
The selection process for PoS signing validators in Proof-of-Activity is typically done randomly, weighted by the amount of currency (stake) they have locked up. A user with a larger stake has a proportionally higher chance of being chosen to sign the block.
Once selected, these validators must digitally sign the PoW-generated block template to validate it. A threshold of signatures is usually required to finalize the block.
Glossar
Validators
Attestation ⎊ Validators, within cryptocurrency networks, represent nodes actively participating in a consensus mechanism, verifying and attesting to the validity of new blocks or transactions.
Signing Validators
Attestation ⎊ The role of Signing Validators within cryptocurrency derivatives, options trading, and broader financial derivatives ecosystems centers on cryptographic attestation of transaction validity and state integrity.
PoA
Mechanism ⎊ Proof of Authority (PoA) is a consensus mechanism where transactions are validated by a limited number of pre-approved, trusted validators rather than through competitive mining.