They proposed to employ a decentralized ledger of transactions packaged in batches (called “blocks”) and secured by cryptographic algorithms — The full system would afterwards be dubbed “blockchain.” An important criticism of proof of labor is that it is remarkably Electricity-intensive due to computational energy needed. Proof of stake substitutes https://howtobuynftart27259.pointblog.net/the-basic-principles-of-ethbase-70099240