JSON-compatible and human-readable format of blocks.

Extended by

• PlainMacroBlock
• PlainMicroBlock

Properties

batch

batch: `number`

The batch number that the block is in.

bodyHash

bodyHash: `string`

The root of the Merkle tree of the body, in HEX format. It acts as a commitment to the body.

epoch

epoch: `number`

The epoch number that the block is in.

extraData

extraData: `string`

The extra data of the block, in HEX format. Up to 32 raw bytes.

In the genesis block, it encodes the initial supply as a big-endian u64.

No planned use otherwise.

hash

hash: `string`

The block's unique hash, used as its identifier, in HEX format.

height

height: `number`

The block's block height, also called block number.

historyHash

historyHash: `string`

A Merkle root over all of the transactions that happened in the current epoch, in HEX format.

network

network: `string`

The network that this block is valid for.

prevHash

prevHash: `string`

The hash of the header of the immediately preceding block (either micro or macro), in HEX format.

seed

seed: `string`

The seed of the block. This is the BLS signature of the seed of the immediately preceding block (either micro or macro) using the validator key of the block producer.

size

size: `number`

The block's on-chain size, in bytes.

stateHash

stateHash: `string`

The root of the Merkle tree of the blockchain state, in HEX format. It acts as a commitment to the state.

timestamp

timestamp: `number`

The timestamp of the block. It follows the Unix time and has millisecond precision.

version

version: `number`

The protocol version that this block is valid for.