# src/sysvar.js

    // @flow
    import {PublicKey} from './publickey';

    export const SYSVAR_CLOCK_PUBKEY = new PublicKey(
      'SysvarC1ock11111111111111111111111111111111',
    );

    export const SYSVAR_RECENT_BLOCKHASHES_PUBKEY = new PublicKey(
      'SysvarRecentB1ockHashes11111111111111111111',
    );

    export const SYSVAR_RENT_PUBKEY = new PublicKey(
      'SysvarRent111111111111111111111111111111111',
    );

    export const SYSVAR_REWARDS_PUBKEY = new PublicKey(
      'SysvarRewards111111111111111111111111111111',
    );

    export const SYSVAR_STAKE_HISTORY_PUBKEY = new PublicKey(
      'SysvarStakeHistory1111111111111111111111111',
    );

    export const SYSVAR_INSTRUCTIONS_PUBKEY = new PublicKey(
      'Sysvar1nstructions1111111111111111111111111',
    );