白皮書解讀
目標
比特幣：一種點對點的現(xiàn)金系統(tǒng)
- 解決雙重支付問題
- 點對點支付，不依賴第三方信用機構
- 去中心化
- 魯棒性单寂、抗攻擊
交易
Alice和她的朋友Joe會面時看靠，用現(xiàn)金換取了比特幣摔桦。由Joe產生的這筆交易使得Alice的錢包擁有了0.10BTC。
現(xiàn)在Alice將第一次使用比特幣在加利福尼亞州帕羅奧圖的Bob咖啡店買一杯0.015BTC的咖啡好芭。
[圖片上傳失敗...(image-61f403-1516267978440)]
我們定義燃箭，一枚電子貨幣是這樣額一串數(shù)字簽名：每一位所有者通過前一次交易和下一位擁有者的公鑰簽署一個隨機散列的數(shù)字簽名，并且將這個簽名附加在這枚電子貨幣的尾部舍败，然后這個電子貨幣就發(fā)送給了下一個所有者遍膜。而收款人通過對簽名進行檢驗，就能驗證該鏈條的所有者瓤湘。
觀察某一筆交易細節(jié)
https://blockchain.info/tx/0627052b6f28912f2703066a912ea577f2ce4da4caa5a5fbd8a57286c345c2f2
查看某個比特幣帳號未消費的交易
curl https://blockchain.info/unspent?active=1Cdid9KFAaatwczBwBttQcwXYCpvK8h7FK
{
"unspent_outputs":[
{
"tx_hash":"f2c245c38672a5d8fba5a5caa44dcef277a52e916a0603272f91286f2b052706",
"tx_hash_big_endian":"0627052b6f28912f2703066a912ea577f2ce4da4caa5a5fbd8a57286c345c2f2",
"tx_index":47854970,
"tx_output_n": 1,
"script":"76a9147f9b1a7fb68d60c536c2fd8aeaa53a8f3cc025a888ac",
"value": 8450000,
"value_hex": "0080efd0",
"confirmations":227473
},
{
"tx_hash":"0365fdc169b964ea5ad3219e12747e9478418fdc8abed2f5fe6d0205c96def29",
"tx_hash_big_endian":"29ef6dc905026dfef5d2be8adc8f4178947e74129e21d35aea64b969c1fd6503",
"tx_index":71083209,
"tx_output_n": 0,
"script":"76a9147f9b1a7fb68d60c536c2fd8aeaa53a8f3cc025a888ac",
"value": 100000,
"value_hex": "0186a0",
"confirmations":171856
},
{
"tx_hash":"d9717f774daab8d3dd470853204394c82e3c01097479575d6d2ee97d7b3bdfa1",
"tx_hash_big_endian":"a1df3b7b7de92e6d5d57797409013c2ec8944320530847ddd3b8aa4d777f71d9",
"tx_index":75974855,
"tx_output_n": 0,
"script":"76a9147f9b1a7fb68d60c536c2fd8aeaa53a8f3cc025a888ac",
"value": 1000000,
"value_hex": "0f4240",
"confirmations":164015
},
{
"tx_hash":"3f1df69df90d097981ca9c97ad8b6a32daed345565a433f8c8e472b2dab2ac79",
"tx_hash_big_endian":"79acb2dab272e4c8f833a4655534edda326a8bad979cca8179090df99df61d3f",
"tx_index":79887883,
"tx_output_n": 1,
"script":"76a9147f9b1a7fb68d60c536c2fd8aeaa53a8f3cc025a888ac",
"value": 719787,
"value_hex": "0afbab",
"confirmations":158128
},
{
"tx_hash":"417bdb6f5db3e830407f94d1a82d1667e738b19da3679b7263ebfb913394efdd",
"tx_hash_big_endian":"ddef943391fbeb63729b67a39db138e767162da8d1947f4030e8b35d6fdb7b41",
"tx_index":170905487,
"tx_output_n": 0,
"script":"76a9147f9b1a7fb68d60c536c2fd8aeaa53a8f3cc025a888ac",
"value": 10000,
"value_hex": "2710",
"confirmations":77937
},
{
"tx_hash":"d049d6039f9d1cb2625bac294d7465b4b1077bd5bc0e30e01e02b184db524c1f",
"tx_hash_big_endian":"1f4c52db84b1021ee0300ebcd57b07b1b465744d29ac5b62b21c9d9f03d649d0",
"tx_index":174630347,
"tx_output_n": 0,
"script":"76a9147f9b1a7fb68d60c536c2fd8aeaa53a8f3cc025a888ac",
"value": 11100,
"value_hex": "2b5c",
"confirmations":75399
},
{
"tx_hash":"b8a6470c7a38d0983effed00a3f75c74ba371da1387352f35d1df155851ea8d1",
"tx_hash_big_endian":"d1a81e8555f11d5df3527338a11d37ba745cf7a300edff3e98d0387a0c47a6b8",
"tx_index":175949432,
"tx_output_n": 0,
"script":"76a9147f9b1a7fb68d60c536c2fd8aeaa53a8f3cc025a888ac",
"value": 10000,
"value_hex": "2710",
"confirmations":74493
},
{
"tx_hash":"a2b9570e26e3991fc999c42dc8c6eea7b06514b61814da1a71b56c6ba2ae651c",
"tx_hash_big_endian":"1c65aea26b6cb5711ada1418b61465b0a7eec6c82dc499c91f99e3260e57b9a2",
"tx_index":175955161,
"tx_output_n": 0,
"script":"76a9147f9b1a7fb68d60c536c2fd8aeaa53a8f3cc025a888ac",
"value": 10000,
"value_hex": "2710",
"confirmations":74484
},
{
"tx_hash":"05230cb8cd8c6a3788ed41433dfdd68a1a608cc8feb3bc1c29d97ce84bec070e",
"tx_hash_big_endian":"0e07ec4be87cd9291cbcb3fec88c601a8ad6fd3d4341ed88376a8ccdb80c2305",
"tx_index":175955664,
"tx_output_n": 0,
"script":"76a9147f9b1a7fb68d60c536c2fd8aeaa53a8f3cc025a888ac",
"value": 10000,
"value_hex": "2710",
}
]
}
區(qū)塊
http://zhibimo.com/read/wang-miao/mastering-bitcoin/Chapter07.html
