Confirmation
A confirmation is each additional block built on top of the one containing your transaction — more confirmations, exponentially harder reversal. Exchanges
A confirmation is each additional block built on top of the one containing your transaction — more confirmations, exponentially harder reversal. Exchanges commonly require 3–6 for Ethereum, more for Bitcoin; each confirmation is the network re-voting that your payment is permanent.
Why it matters
“Confirmed” on-screen and *settled* are different things: one confirmation on a small chain is weaker than one on Bitcoin. Match confirmation patience to value at stake — coffee money needs one, house money deserves a dozen — and remember instant-looking UX is often the app trusting early, not the chain finalizing fast.
Related terms
transaction ·
finality · block