Struct Pubkey 

pub struct Pubkey(/* private fields */);

A Solana public key / program id / PDA — 32 bytes, base58-encoded on the wire.

Implementations

impl Pubkey

pub const SYSTEM: Self

The System program (11111111111111111111111111111111).

pub const MEMO: Self

The SPL Memo program v3 (MemoSq4gqABAXKb96qnH8TysNcWxMyWCqXgDLGmfcHr). Bytes captured from @solana/spl-memo MEMO_PROGRAM_ID (2026-07-19).

pub const SAS: Self

The Solana Attestation Service program (22zoJMtdu4tQc2PzL74ZUT7FrwgB1Udec8DdW4yw4BdG). Bytes captured from @solana/web3.js (2026-07-19).

pub const fn from_bytes(b: [u8; 32]) -> Self

Construct from raw 32 bytes (e.g. a PDA hash output or an account owner).

pub const fn to_bytes(&self) -> [u8; 32]

The raw 32 bytes.

pub fn as_bytes(&self) -> &[u8; 32]

A reference to the inner 32 bytes.

Trait Implementations

impl AsRef<[u8; 32]> for Pubkey

fn as_ref(&self) -> &[u8; 32]

Converts this type into a shared reference of the (usually inferred) input type.

impl BorshDeserialize for Pubkey

fn deserialize_reader<__R: Read>(reader: &mut __R) -> Result<Self, Error>

fn deserialize(buf: &mut &[u8]) -> Result<Self, Error>

Deserializes this instance from a given slice of bytes. Updates the buffer to point at the remaining bytes.

fn try_from_slice(v: &[u8]) -> Result<Self, Error>

Deserialize this instance from a slice of bytes.

fn try_from_reader<R>(reader: &mut R) -> Result<Self, Error>

where R: Read,

impl BorshSerialize for Pubkey

fn serialize<__W: Write>(&self, writer: &mut __W) -> Result<(), Error>

impl Clone for Pubkey

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Pubkey

impl Debug for Pubkey

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

Formats the value using the given formatter.

impl Display for Pubkey

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

Formats the value using the given formatter.

impl Eq for Pubkey

impl From<Pubkey> for [u8; 32]

fn from(pk: Pubkey) -> Self

Converts to this type from the input type.

impl From<[u8; 32]> for Pubkey

fn from(b: [u8; 32]) -> Self

Converts to this type from the input type.

impl FromStr for Pubkey

type Err = Base58Error

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for Pubkey

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 Ord for Pubkey

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for Pubkey

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Pubkey

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Pubkey