Struct bitcoin::blockdata::block::BlockHeader

pub struct BlockHeader {
    pub version: u32,
    pub prev_blockhash: Hash,
    pub merkle_root: Hash,
    pub time: u32,
    pub bits: u32,
    pub nonce: u32,
}

A block header, which contains all the block's information except the actual transactions

Fields

version: u32

The protocol version. Should always be 1.

prev_blockhash: Hash

Reference to the previous block in the chain

merkle_root: Hash

The root hash of the merkle tree of transactions in the block

time: u32

The timestamp of the block, as claimed by the miner

bits: u32

The target value below which the blockhash must lie, encoded as a a float (with well-defined rounding, of course)

nonce: u32

The nonce, selected to obtain a low enough blockhash

Methods

impl BlockHeader

pub fn target(&self) -> Uint256

Computes the target [0, T] that a blockhash must land in to be valid

pub fn compact_target_from_u256(value: &Uint256) -> u32

Computes the target value in float format from Uint256 format.

pub fn difficulty(&self, network: Network) -> u64

Compute the popular "difficulty" measure for mining

pub fn spv_validate(&self, required_target: &Uint256) -> Result<(), Error>

Performs an SPV validation of a block, which confirms that the proof-of-work is correct, but does not verify that the transactions are valid or encoded correctly.

pub fn work(&self) -> Uint256

Returns the total work of the block

Trait Implementations

impl BitcoinHash for BlockHeader

fn bitcoin_hash(&self) -> Hash

Produces a Sha256dHash which can be used to refer to the object

impl<S: Encoder> Encodable<S> for BlockHeader

fn consensus_encode(&self, s: &mut S) -> Result<(), Error>

Encode an object with a well-defined format, should only ever error if the underlying Encoder errors.

impl<D: Decoder> Decodable<D> for BlockHeader

fn consensus_decode(d: &mut D) -> Result<BlockHeader, Error>

Decode an object with a well-defined format

impl Eq for BlockHeader

impl Clone for BlockHeader

fn clone(&self) -> BlockHeader

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for BlockHeader

impl PartialEq<BlockHeader> for BlockHeader

fn eq(&self, other: &BlockHeader) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &BlockHeader) -> bool

This method tests for !=.

impl Debug for BlockHeader

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.