Crypto runs on complicated Blockchain system which is unmodifiable by any common individual or no one can't interrupt it at any stage. Nodes on Blockchain system only works as mediators , connectors or validators.
A Bitcoin node plays a crucial role in maintaining the integrity of the network by validating transactions and blocks. When a user makes a transaction, it is broadcast to the network and other nodes verify the transaction to ensure that it meets certain criteria such as having the necessary funds and being valid according to the rules of the network. Once a transaction is verified, it is added to the blockchain which is a public ledger that records all transactions on the network.
To become a Bitcoin node , a computer must download the entire blockchain, which can be quite large in Trillion bites. Once the blockchain is downloaded, the node can begin validating transactions and blocks. Nodes use complex mathematical algorithms to verify the transactions and blocks, and once they are satisfied that the transactions and blocks are valid, they add them to their local copy of the blockchain.
Nodes can also provide other services such as sharing transactions and blocks to other nodes on the network and providing a source of consensus for the network. By participating in the network as a node users can help ensure the security and integrity of the Bitcoin network and can also earn rewards in the form of Bitcoin for their contributions.
After submission of a transaction we see the Confirmations process take place which mostly ends quickly in Bitcoin Cash chain where required only 2-3 confirmation to complete but can take up to 28 confirmations when we send Ethereum or Bitcoin from exchange to exchange.
In cryptocurrency transactions , confirmations refer to the number of times a transaction has been verified by nodes on the blockchain network. Each time a transaction is verified, it is added to a block and the block is added to the blockchain. The more confirmations a transaction has, the more likely it is that the transaction will be considered final and irreversible.
When a user initiates a transaction the transaction is broadcast to the network and is added to a "Mempool," which is a pool of unconfirmed transactions. Nodes on the network compete to validate transactions and add them to blocks, and the more nodes that validate a transaction the more likely it is that the transaction will be added to a block and confirmed.
Once a transaction is added to a block and the block is added to the blockchain, it is considered confirmed. The number of confirmations required for a transaction to be considered final can vary depending on the cryptocurrency and the user's settings, but generally, transactions are considered final after they have been confirmed by a certain number of nodes on the network.
In Bitcoin a transaction is considered confirmed after it has been included in six blocks on the blockchain. This process, known as "6 confirmations," is widely considered a minimum threshold for a transaction to be considered final and irreversible. However, some users may choose to wait for more confirmations before considering a transaction final as the more confirmations a transaction has the less likely it is to be reversed due to a faulty or fraudulent transaction.
You can tip to author in BCH as well ,