中午半小时不睡觉,看完了第二章。晚上加班,下班后忘记带书回来了,先记下今天票圈里的疑问。

我是分割线

隔了一个星期,下班后不走,留下来写博客。今天就写好它吧。

知识点

  • popular blockchain
    1. blockchain info: http://blockchain.info
    2. bitcoin block explorer: http://blockexplorer.com
    3. insight: http://insight.bitpay.com
    4. blockr block reader: http://blockr.in
  • 交易方式:比特币的账本是区块链,Transaction as double-entry bookkeeping,即双向的账本(ledger),一个是input,一个是output。每一笔交易都会分开两个output,一个给收款方,一个给矿工,类似于物理热力学转换时的熵增。

  • getting the right inputs
    curl https://blockchain.info/unspent?active=1Cdid9KFAaatwczBwBttQcwXYCpvK8h7FK

{
    "unspent_outputs": [
        {
            "tx_hash": "186f9f998a5...2836dd734d2804fe65fa35779",
            "tx_index": 104810202,
            "tx_output_n": 0,
            "script": "76a9147f9b1a7fb68d60c536c2fd8aeaa53a8f3cc025a888ac",
            "value": 10000000,
            "value_hex": "00989680",
            "confirmations": 0
        }
    ]
}
  • genesis block 初始区块
  • irrevocable 不可取消的(confirmation大于6层的时候不可取消??)
  • immense 极大的
  • temporary pool 暂存池
  • pile 堆
  • proof-of-work: The algorithm for proof of work involves repeatedly hashing the header of the block and a random number with the SHA256 cryptographic algorithm until a solution matching a predetermined pattern emerges.

  • GPUs: Graphical Processing Units

  • ASIC: Application-specific integrated circuits 特定程序的硬件回路
  • contractor: 承包商

疑问

  • 如何在区块链中留下挖矿者已经挖到信息的痕迹又不暴露该信息呢?用零知识证明吗?
  • 交易又是如何在不暴露自己密钥情况下,被确认然后写入区块链的?
  • aggregate的过程用不用扣税?