Ethereum: Can the results of duplicate hashes be spent?
As an alternative to traditional blocks based on block, ETHERUM (ETH) uses a Saturday (POS) proof system based on the ETHERUM 2.0 update plane. This new architecture aims to increase the scalability and ability to use by introducing a more efficient and ecological method of validating transactions.
One of the fundamental aspects of Ethereum’s POS is how duplicated transaction hashes manages. In this article, we will deepen the specificity of what happens when two transactions with the same hash in blockchain appear and if such outputs can be spent.
Hashes of Duplicate Transaction
Duplicate transactions appear when a user initiates several transactions with the same entry (for example, 2^256 numbers). As Ethereum’s POS is based on the collective package of users who have certain amounts of ETH to validate new blocks, duplicated hashes is a problem. To solve this problem, Ethereum has introduced its own hash -based system to solve duplicates.
Within this system, each transaction is offered a unique identifier (hash) that serves as a kind of « digital fingerprint ». This hash is generated on the basis of the private user key and other specific parameters of his account.
Duplicate spending expenses
When a duplicate output appears in the blockchain, it can be problematic. In Ethereum, duplicates are not considered conflict or invalid; Instead, they simply become a duplicate version of the original transaction.
However, when these duplicates appear with different inputs (ie different private keys), they have problems. According to Ethereum’s POS rules, users who have an amount of ET is equal or greater than the stake needed for a given block to be validated must spend this amount or risk losing their position.
If two transactions with the same hash appear in the blockchain, but they have different inputs, it is theoretically possible that these duplicated outputs can be spent. To understand why:
- Duplicate hassos are unique : the unique hash system of Ethereum ensures that each transaction has a distinct identifier.
- Different entries lead to different outputs : When duplicates with different private keys, the resulting transactions have different outputs.
- Ethereum’s stake system provides consistency : The validation mechanism based on Ethereum prevents duplicated considerations of conflict or invalid results.
Conclusion
In conclusion, when two transactions with the same hash appear in the blockchain, but they have different contributions, they can be spent by users who have an ETH or larger amount than the stake needed for a given block to be validated. The unique hash system and the validation mechanism based on stakes work together to ensure consistency and prevent duplicates from becoming conflict or invalid.
However, it is essential to note that Ethereum is still based on the collective participation of users who have certain amounts of ETH to validate new blocks. This means that, although duplicated results can be spent, they are not considered a serious problem in terms of ability to use and scalability.
Update 2.0: New Blockchain Ethereum
As part of his continuous efforts to improve the ability to use and scalability, Ethereum currently undergoes an update process known as Ethereum 2.0. This new blockchain will use the proof of Saturday (POS) instead of work proof (POW), which could make it more suitable for decentralized applications and high yield transactions.
In summary, while duplicates can be problematic in the short term, they are not a significant problem when they spend them.