Ethereum: How is mining the exact same hash on every computer avoided?

Ethereum: How mining consensus works and prevents double seeds

In Ethereum, mining is the process of validating transactions and adding the blockchain. In order to ensure the integrity and safety of the network, a consensus salgorithm must be available in order to validate these transactions without a single node or computer that controls the entire process. One of the most important challenges in achieving this consensus is the use of hash functions with which a unique digital fingerprint is created for each transaction block.

How does Ethereum Konsen work?

In Ethereum, the consensus salgorithm (Pow) used is referred to as evidence of the work. This means that miners compete for solving a complex mathematical puzzle that requires significant computing power. The first miner to solve the puzzle can validate the transactions and create a new block. The new block is added to the blockchain, which is then sent to all other nodes in the network.

How does mining consensus prevent double seeds?

The main problem when creating consensus without a single knot or computer that controls the entire process is, like miners, ensure that the seeds (or hashes) are not the same for every transaction block. Like: How:

• hash functions : Each block has a clear hash function with which a digital fingerprint of the block is created. The hash function takes on the content of the block as an input and outputs a string of fixed size, which is referred to as “block-hash”.

• seed generation : To create a seed, miners use several random numbers (referred to as “Nonce”) and combine them with the block -hash. This process is repeated several times until a clear seed is generated.

• Blockhash and seed combination : When creating a new block, the miner combines the content of the block (including the hash of the previous block) with the previously generated seed. The resulting combination is known as “Block -Hash”.

• Proof of the work : To create a block -hash, miners have to solve a complex mathematical puzzle. This puzzle requires considerable computing power and is designed in such a way that it is difficult for malicious actors to take advantage of.

• difficulty adjustment

  : If more miners join the network, the level of difficulty of solving the puzzle increases. The difficulty adjustment mechanism ensures that the puzzle remains a challenge but is not impossible to solve.

How do mining customers guarantee unique seeds?

To ensure that unique seeds are generated on every mining, mining customers use a combination of techniques:

• Random number generation : Each miner uses several random numbers (nonce) to generate his seeds.

• Seed Hashing : The miner combines the Nonce with the block -hash and repeat this process several times until a clear seed is generated.

• hash function : The resulting seed is then used to use a cryptographic hash function (such as SHA-256 or ECDSA) to ensure its uniqueness.

Additional measures

To further prevent double seeds, Ethereum has carried out additional measures:

• MINING POOLING : miners bundle their resources to increase the likelihood of finding a unique solution for the puzzle.

• Block time and level of difficulty : The block time (the time that a miner needs to solve the puzzle) is increased, since more miners join the network, which makes it more difficult to use the system by using brute force to use.

• Energy requirement : The energy requirement to solve the riddle is high, which reduces the incentive for malicious players to use the system.

Diploma

In summary, it can be said that the consensus salgorithm from Ethereum, Proof of Work (Pow), needs miners to use complex mathematical puzzles to validate transactions and create new blocks. To prevent double seeds, mining clients use a combination of random number generation, seed hashing and hash functions to ensure the uniqueness.