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Block Structure


Block is the main entity in NEAR Protocol blockchain. Blocks are produced in NEAR Protocol every second.

It contains the info:

  • about the Block producer (AccountId of the validator responsible for particular Block production)
  • Block Header
  • List of Chunk Headers



pub struct BlockView {
pub author: AccountId,
pub header: BlockHeaderView,
pub chunks: Vec<ChunkHeaderView>,


BlockHeaderView contains main info about the block.

pub struct BlockHeaderView {
pub height: BlockHeight,
pub prev_height: Option<BlockHeight>,
pub epoch_id: CryptoHash,
pub next_epoch_id: CryptoHash,
pub hash: CryptoHash,
pub prev_hash: CryptoHash,
pub prev_state_root: CryptoHash,
pub chunk_receipts_root: CryptoHash,
pub chunk_headers_root: CryptoHash,
pub chunk_tx_root: CryptoHash,
pub outcome_root: CryptoHash,
pub chunks_included: u64,
pub challenges_root: CryptoHash,
/// Legacy json number. Should not be used.
pub timestamp: u64,
pub timestamp_nanosec: u64,
pub random_value: CryptoHash,
pub validator_proposals: Vec<ValidatorStakeView>,
pub chunk_mask: Vec<bool>,
pub gas_price: Balance,
pub block_ordinal: Option<NumBlocks>,
/// TODO(2271): deprecated.
pub rent_paid: Balance,
/// TODO(2271): deprecated.
pub validator_reward: Balance,
pub total_supply: Balance,
pub challenges_result: ChallengesResult,
pub last_final_block: CryptoHash,
pub last_ds_final_block: CryptoHash,
pub next_bp_hash: CryptoHash,
pub block_merkle_root: CryptoHash,
pub epoch_sync_data_hash: Option<CryptoHash>,
pub approvals: Vec<Option<Signature>>,
pub signature: Signature,
pub latest_protocol_version: ProtocolVersion,