In Bitcoin is the first decentralized digital currency. It was created in 2009, by an anonymous founder or group of founders... and other cryptocurrencies, a A cryptocurrency transaction is an entry on the blockchain ledger, noting sender, receiver and number of coins transacted. More is confirmed (valid) when it’s included in a A collection of cryptocurrency transactions. Every few minutes (or seconds, depending on the blockchain) one miner or validator verifies the... More. Each new block adds a new confirmation and increases the cost of reversal. Different merchants might require a different number of confirmations. In Bitcoin, three confirmations are usually required.
I'm a literature professional in the crypto world since 2016. It doesn't sound very compatible, but I've been learning and teaching about blockchain and cryptos for international portals since then. After hundreds of articles and diverse content about the topic, now you can find me here on Alfacash, working for more decentralization.