BitcoinCash/specification
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2020-01-02 13:27:13 -05:00
committed by buwiki
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home.md
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- Legacy (Base 58) - Legacy (Base 58)
- Bech32 - Bech32
- Cash Address - Cash Address
- Proof of Work - [Proof of Work](/protocol/blockchain/proof-of-work)
- Difficulty Adjustment Algorithm - [Difficulty Adjustment Algorithm](/protocol/blockchain/proof-of-work/difficulty-adjustment-algorithm)
- Legacy DAA - Legacy DAA
- Emergency DAA - Emergency DAA
- BCH Adaptive DAA - BCH Adaptive DAA
protocol/blockchain/block/block-header.md
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1. Calculate the hash of the block. 1. Calculate the hash of the block.
- The double SHA-256 hash of the block header. - The double SHA-256 hash of the block header.
2. Confirm the proof of work was executed correctly. 2. Confirm the [proof of work](/protocol/blockchain/proof-of-work) was executed correctly.
- See [Difficulty Adjustment Algorithm](/protocol/blockchain/proof-of-work/difficulty-adjustment-algorithm) for more details. - See [Difficulty Adjustment Algorithm](/protocol/blockchain/proof-of-work/difficulty-adjustment-algorithm) for more details.
3. Determine the relative location of the block in the blockchain. 3. Determine the relative location of the block in the blockchain.
- Using the previous block hash contained in the header - Using the previous block hash contained in the header
@@ -27,7 +27,7 @@ Since validation of all the transactions in the block can be expensive, the abil
### Difficulty Target Encoding ### Difficulty Target Encoding
Within the block header, the difficulty target uses a special floating-point representation that helps keep the size of the block header small. Within the block header, the difficulty target uses a special floating-point representation that helps keep the size of the block header small.
While the [Difficulty Adjustment Algorithm](/protocol/blockchain/proof-of-work/difficulty-adjustment-algorithm) attempts to calculate the ideal target (i.e. the value the block hash must be "less than"), it undergoes a lossy conversion when put in the block header: While the difficulty adjustment algorithm attempts to calculate the ideal target (i.e. the value the block hash must be "less than"), it undergoes a lossy conversion when put in the block header:
| Field | Length | Format | Description | | Field | Length | Format | Description |
|--|--|--|--| |--|--|--|--|
protocol/blockchain/proof-of-work.md
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# Proof of Work