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# Validators

The block validation procedure is one of the essential elements that makes blockchain functioning possible. A network node known as a **blockchain validator** assists in processing and validating transaction blocks on the platform so that they may be added to the blockchain's permanent ledger. On PoS blockchains, these nodes are referred to as **validators**, whereas, on PoW blockchain networks, these are known as **miners**. In essence, _validator nodes take on the responsibility of validating, voting on, and keeping a record of transactions by taking part in the consensus process_.
The block validation procedure is one of the essential elements that makes blockchain functioning possible. A network node known as a **blockchain validator** assists in processing and validating transaction blocks on the platform so that they may be added to the blockchain's permanent ledger.

Block validation, however, is a procedure that both of these blockchain variants may use. Staking, the method of block validation utilized on PoS blockchains, would be a more appropriate alternative to mine when referring to blockchain networks.
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The process starts with an user sending the transaction on the blockchain, which is then queued on the network for further confirmation. The block is then verified by validator nodes by batching individual transactions into it. The amount of transactions that can be included in a block is governed differently by each blockchain. The block is then processed by validators which add it to the blockchain as a permanent record. On some blockchains, validators have the option to select which transactions to group into a block. This choice is made depending on the validator's preferences, usually based on the transaction costs involved, and is not necessarily made in chronological sequence.
On PoS blockchains, these nodes are referred to as _validators_, whereas, on PoW blockchain networks, these are known as _miners_. In essence, validator nodes take on the responsibility of validating, voting on, and keeping a record of transactions by taking part in the consensus process.

The sender of cryptocurrency assets tacks on the fees to every blockchain transaction as a reward for validators. Senders have the option to set their own rates and even transmit transactions completely free of charge.
Block validation is a procedure that both of these blockchain variants may use. Staking, the method of block validation utilized on PoS blockchains, would be a more appropriate alternative to mine when referring to blockchain networks.

The process starts with a user sending the transaction on the blockchain, which is then queued on the network for further confirmation. The block is then verified by validator nodes by batching individual transactions into it. The amount of transactions that can be included in a block is governed differently by each blockchain. The block is then processed by validators which add it to the blockchain as a permanent record. On some blockchains, validators have the option to select which transactions to group into a block.

!!! info

Transactions with _extremely little_ or _no fees_, however, are more likely to be disregarded by validators and, as a result, can hang around in the unconfirmed state for a very long time. The transaction is often removed from the network if it is not put to a block for validation after a period.
This choice is made depending on the validator's preferences, usually based on the transaction costs involved, and is not necessarily made in chronological sequence. Transactions with _extremely little_ or _no fees_, however, are more likely to be disregarded by validators and, as a result, can hang around in the unconfirmed state for a very long time. The transaction is often removed from the network if it is not put into a block for validation after a certain time period.

The sender of cryptocurrency assets tacks on the fees to every blockchain transaction as a reward for validators. Senders have the option to set their own rates and even transmit transactions completely free of charge.