Struct HeaderV4 

pub struct HeaderV4 {

    pub chain_config: Option<ResolvableChainConfig>,
    pub height: u64,
    pub timestamp: u64,
    pub timestamp_millis: u64,
    pub l1_head: u64,
    pub l1_finalized: Option<L1BlockInfo>,
    pub payload_commitment: String,
    pub builder_commitment: String,
    pub ns_table: Option<NsTable>,
    pub block_merkle_tree_root: String,
    pub fee_merkle_tree_root: String,
    pub fee_info: Option<FeeInfo>,
    pub builder_signature: Option<BuilderSignature>,
    pub reward_merkle_tree_root: String,
    pub total_reward_distributed: String,
    pub next_stake_table_hash: Option<String>,
}

The header shape introduced in protocol version 0.4, which moved to the second reward merkle tree and added millisecond timestamps, distributed rewards and the next stake table hash

Fields

chain_config: Option<ResolvableChainConfig>

height: u64

timestamp: u64

Unix seconds

timestamp_millis: u64

Unix milliseconds. Clamped separately from timestamp, so it is not guaranteed to be timestamp * 1000

l1_head: u64

L1 block this header was built against

l1_finalized: Option<L1BlockInfo>

Latest L1 block finalized when the block was proposed, absent when none was

payload_commitment: String

TaggedBase64 AvidMCommit~

builder_commitment: String

TaggedBase64 BUILDER_COMMITMENT~

ns_table: Option<NsTable>

block_merkle_tree_root: String

TaggedBase64 MERKLE_COMM~

fee_merkle_tree_root: String

TaggedBase64 MERKLE_COMM~

fee_info: Option<FeeInfo>

builder_signature: Option<BuilderSignature>

Evidence that fee_info is correct. Absent when the builder did not sign, and never part of the header commitment, since consensus has already checked it

reward_merkle_tree_root: String

Root of the second reward merkle tree, which replaced the first in this version. TaggedBase64 MERKLE_COMM~

total_reward_distributed: String

Rewards distributed since genesis, in wei. A 256-bit number, so a decimal string

next_stake_table_hash: Option<String>

Stake table taking effect next epoch. TaggedBase64 STAKE_TABLE~. Absent outside an epoch boundary

Implementations

impl HeaderV4

pub fn next_stake_table_hash(&self) -> &str

Returns the value of next_stake_table_hash, or the default value if next_stake_table_hash is unset.

Trait Implementations

impl Clone for HeaderV4

fn clone(&self) -> HeaderV4

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HeaderV4

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

Formats the value using the given formatter.

impl Default for HeaderV4

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for HeaderV4

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for HeaderV4

impl Hash for HeaderV4

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Message for HeaderV4

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for HeaderV4

fn eq(&self, other: &HeaderV4) -> bool

Equality operator ==.

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

Inequality operator !=.

impl Serialize for HeaderV4

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for HeaderV4