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区块(Block)

Blocks are batches of transactions with a hash of the previous block in the chain. Hashes link blocks together (in a chain) because they are cryptographically derived from the block data. One change in any block in history will invalidate all the following blocks. This feature protects the blocks in a chain from tampering.

区块是具有链中前一个块哈希的一批交易。哈希将区块链接在一起(在链中)，因为它们是从区块数据中以加密方式产生的。历史上任何区块的一次改变都会使其下所有区块无效。此功能可保护链中的区块不被篡改。

To preserve the transaction history, blocks are strictly ordered (every new block created contains a reference to its parent block), and transactions within blocks are strictly ordered too.

为了保存交易历史，区块是严格排序的(创建的每个新块都包含对其父块的引用)，并且块内的交易也是严格排序的。

区块里有什么?(What is in a block?)​

  • Timestamp – the time when the block was mined.
    时间戳 – 区块被挖到的时间。

  • Block number – the length of the blockchain in blocks.
    区块号 – 区块链中区块的长度。

  • Difficulty – the effort required to mine the block.
    难度 – 挖到区块所需的工作量。

  • MixHash – a unique identifier for that block.
    混合哈希 – 某个块的唯一标识符。

  • Parent hash – the unique identifier for the block that came before (this is how blocks are linked in a chain).
    父哈希 – 父块的唯一标识符(区块间就是如此链起来地)

  • Transactions list – the transactions included in the block.
    交易列表 – 区块内包含的交易

区块大小/规模(Block size)​

Blocks themselves are bounded in size. Each block has a block gas limit which is set by the network and the miners collectively: the total amount of gas expended by all transactions in the block must be less than the block gas limit.

区块本身的大小是有限的。每个区块都有一个由网络和矿工共同设定的区块gas费用限制：区块中所有交易消耗的gas总量必须小于区块gas限制。

More details 更多细节

区块