Everyone can operate a validator node and begin staking. Nevertheless organising your own personal node or staking system might be rather tricky because it requires specialized expertise. Cardano: Cardano is recognized for its focus on peer-reviewed research and advancement. It operates on a Proof of Stake variant called Ouroboros, https://financefeeds.com/bolivia-to-use-copyright-for-energy-imports-a-groundbreaking-shift/