A cryptocurrency, crypto-currency, or crypto is a digital asset
A cryptocurrency (or “crypto”) is a digital currency that can be used to buy goods and services, but uses an online ledger with strong cryptography to secure online transactions.
BTC cryptocurrencies as the currency of the future
How does it work?
A miner is a node/device in the network that collects transactions and organizes them into blocks. Whenever transactions are made, all network nodes receive them and verify their validity. Then, miner nodes gather these transactions from the memory pool and begin assembling them into a block (candidate block).