Blockchain Fundamentals

Proof-of-Authority (PoA)

Also: PoA

A consensus method where a small set of pre-approved, identified validators produce blocks. It is fast and efficient, but depends on trusting those validators. Common in private networks and testnets.

General education, not investment, legal or tax advice. Markets and regulation change quickly: where a definition depends on current law or on a recent event, check the latest coverage before relying on it.