What is the hashing algorithm used by Bitcoin to hash blocks?

3 answers

• Abdul AhadAug 09, 2025 · 8 days ago
  The hashing algorithm used by Bitcoin to hash blocks is called SHA-256 (Secure Hash Algorithm 256-bit). It is a cryptographic hash function that takes an input and produces a fixed-size output (256 bits). This algorithm is designed to be fast and secure, ensuring the integrity and immutability of the Bitcoin blockchain. SHA-256 is widely used in the cryptocurrency industry and provides a high level of security against potential attacks.
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• Eda AkalpSep 23, 2023 · 2 years ago
  Bitcoin uses the SHA-256 hashing algorithm to hash blocks. This algorithm takes the data of a block as input and produces a unique hash value as output. The hash value is used to link blocks together in a chain, ensuring the integrity and security of the blockchain. SHA-256 is a widely used and well-tested algorithm that provides a high level of security for Bitcoin transactions.
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• Joel FavourSep 16, 2020 · 5 years ago
  The hashing algorithm used by Bitcoin to hash blocks is SHA-256. This algorithm is used to convert the data of a block into a fixed-size hash value. The hash value serves as a unique identifier for the block and is used to link blocks together in the blockchain. SHA-256 is a widely used and secure hashing algorithm that ensures the immutability and integrity of the Bitcoin network.
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