Bitcoin: Is my transaction in a single or multiple block candidate?

Bitcoin transaction and blocking candidates: Understanding the Merkle tree structure

As the bitcoin network continues to grow, understand the complexity of how the transactions are verified and the blocks are created. The key aspect of this process revolves around the concept of the “Block of Candidates” or “Block of Candidates”. In this article, we deepen the details of the bitcoin transaction and block candidate systems.

Merkle tree structure

Bitcoin basically uses a consensual algorithm called Work Test (Pow) to secure transactions. This requires that miners solve complex mathematical problems, which in turn verify the integrity of the network. To achieve this, the block chain is based on the hierarchical structure of the Merkle tree (HD).

The Merkle tree consists of several blocks, each contains a unique hash value that represents the contents of a particular block. When creating a Merkle tree for each block and transaction, it is possible to rebuild the entire block block using one hash calculation. Here comes the concept of “candidates” blocks.

Candidate blocks: single or more?

In Bitcoine, each transaction is grouped into a lot called “block”. When a new block is formed, miners use the Merkle tree structure to determine which transactions are included in this block. Candidates for inclusion in each block may be:

• In this scenario, only one miner has the required computing sources and network bandwidth to verify the entire amount of transactions.

• This scenario occurs when several miners have a computer performance and a network width required to verify one transaction.

Key considerations:

By choosing a candidate, the Bitcoin Consension algorithm, it prefers blocks with more proven transactions. The probability that several candidates are increasing, with the increasing number of proven transactions. However, many candidates inherently do not guarantee stronger consistency or safety.

Restrictions on consensus algorithm:

The Bitcoin consensus consensus algorithm is demanding on energy and has restrictions:

* Work test (POW) : Miners solve complex mathematical problems to verify a block chain that requires significant computing sources.

* Energy consumption : The energy needed to extract bitcoin is essential, which contributes to environmental concerns.

Conclusion:

In short, the structure of the Merkle tree allows the candidate system of bitcoin blocks. When a new block is formed, miners use this structure to determine which transactions are included in this block. Candidate blocks may have a unique or multiple candidate; However, the more proven transaction, the greater the likelihood of multiple candidates.

Although understanding the complexity of the transaction and candidate systems with bitcoins is essential for orientation in the complex world of trade and investment of cryptocurrencies, it is also important to consider the limitations of the algorithm and impact on the environment.

More sources:

To learn more about the Bitcoin Consenses algorithm and the Merkle tree structure:

• “Bitcoin Core” documentation (

• “Blockchain Consenses algorithm” by John Carmack (

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