A Crypto Node, in the simplest term, is a computer that maintains a cryptocurrency network. It supports the network's operation by validating and relaying transactions while also saving a copy of the entire blockchain.In the cryptocurrency network, user's transactions are carried out and validated through nodes. An example of the critical function of nodes was noted in 2019. Bitcoin's nodes reached an all-time high of 100,000; for the first time, it became evident how the crypto community had grown and the essential role nodes play in maintaining the network.
| Year | Major Developments in Crypto Node Usage |
| 2009 | Mainstream introduction of nodes with Bitcoin |
| 2019 | Record number of Bitcoin nodes (over 100,000) |
| 2020–Present | Increasing relevance of nodes in DeFi and staking |
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