CRYPTOCURRENCY

Double Costs Problem: Ethereum Solution’s understanding

When it comes to digital currencies, security is primordial. One of the most significant concerns in implementing a decentralized system, such as Bitcoin or Ethereum, is a double -cost problem where the user twice releases the same cryptocurrency. In this article, we will deepen how each of the cryptocurrencies mainly examines this problem and will investigate the role of nodes in maintaining the integrity of the network.

Bitcoin: traditional approach

Ethereum: Double Spending - Does each node maintain a list of unspent transaction references?

Bitcoin in each operation has a unique reference to previous operation (ie, “bag”) and unreasonable operation (UTEX). This is known as utxo. Each network unit has an extended list of all seen operations, including input and output operations. When processing a new operation, the nodes check that the sender’s funds are sufficient to cover the proposed payment. If he believes that the sender does not have enough funds or that there is no valid UTX to issue, reject the transaction.

Ethereum: a different approach

Ethereum accepts a different approach than Bitcoin by introducing the concept of “chains”. Instead of protecting all memory operations (as Bitcoin does), Ethereum protects them in the world of nodes. These nodes are called “mining” and check each bloc of the operations to ensure that they follow certain rules, such as ensuring that all operations have valid Utexos.

To avoid double costs, Ethereum is based on the “key lock” concept. When the operation is created, its sender uses a unique set of private keys to release his funds. However, when creating a new operation, the sender also blocks these keys by signing UTXO for each record and exit. Then this blocked key is used to create an operation.

knots: essential components

Ethereum nodes play an essential role in maintaining the integrity of the network. Each node has an extended list of all seen operations, including input and output operations. After processing a new operation, check the nodes:

1

2.

3.

Conclusion

In conclusion, Ethereum’s approach to preventing double costs is based on a unique blockchain architecture mechanism and key fixation. Using a decentralized network of nodes to store and check operations, Ethereum ensures that each node has an accurate and updated list of all seen operations. Not only does it protect against double costs, it also maintains the integrity of the entire network.

TakeWays:

  • Each Bitcoin operation has a unique reference to previous operations (UTXO) and is checked by network nodes.

  • Ethereum uses Blockchain architecture with blocked keys that prevents you from double.

  • Monks retain the extended list of all the operations they have seen on the network.

  • The role of knots on Ethereum assures that each node has accurate and updated information about all operations.