终于可以用签名提交备注信息上链了

用法：

先下载整个项目，解压缩后安装必要的 pip 库

git clone https://github.com/OpensourceBooks/blockchain

cd blockchain

pip3 install -r requirements.txt

演示

cd 7

python3 blockchain.py

创建一个发消息的地址和私钥：

python3 client.py -a n

返回类似如下信息：

address:Z/qsNWOAAWULpqvtM/OMHmJE+6PG0oPUsOMGk2ySYgrUB5noaZsD6b0NbbPgslr1cdninkqYKcJ+sx74/Mhn2A==

private_key:196f72bf05e307458a0691ca73a2981d859e499ef9fc264183feddde5bd47217

使用签名发消息上链

python3 client.py -a s -f Z/qsNWOAAWULpqvtM/OMHmJE+6PG0oPUsOMGk2ySYgrUB5noaZsD6b0NbbPgslr1cdninkqYKcJ+sx74/Mhn2A== -t Z/qsNWOAAWULpqvtM/OMHmJE+6PG0oPUsOMGk2ySYgrUB5noaZsD6b0NbbPgslr1cdninkqYKcJ+sx74/Mhn2A== -m hello -p 196f72bf05e307458a0691ca73a2981d859e499ef9fc264183feddde5bd47217

返回的信息类似如下：

[
  {
    "data": "Genesis Block",
    "hash": "65661446c4106d81e864fe4dca5fea70364023f881330017489207652d53e3fc",
    "index": 0,
    "previous_hash": 0,
    "timestamp": 1534499678402
  },
  {
    "data": {
      "from": "gwCSgiOvn0ndfftgsOIYNjPjEcT24BrMEWH7lZ5qCmFlyaUnR/frznDDFdfNSWJLGta14c+0gDUc7RS4kkf1aQ==",
      "memo": "hello",
      "to": "gwCSgiOvn0ndfftgsOIYNjPjEcT24BrMEWH7lZ5qCmFlyaUnR/frznDDFdfNSWJLGta14c+0gDUc7RS4kkf1aQ=="
    },
    "hash": "89f9e9c445690624dceca3ef8f3f43b65f6a6558ffd25c13bc952e9d7624838a",
    "index": 1,
    "previous_hash": "65661446c4106d81e864fe4dca5fea70364023f881330017489207652d53e3fc",
    "timestamp": 1534499684262
  },
  {
    "data": {
      "from": "Z/qsNWOAAWULpqvtM/OMHmJE+6PG0oPUsOMGk2ySYgrUB5noaZsD6b0NbbPgslr1cdninkqYKcJ+sx74/Mhn2A==",
      "memo": "hello",
      "to": "Z/qsNWOAAWULpqvtM/OMHmJE+6PG0oPUsOMGk2ySYgrUB5noaZsD6b0NbbPgslr1cdninkqYKcJ+sx74/Mhn2A=="
    },
    "hash": "144d2a6f6724b78f5ccd1c81e01fae8c6a7b9ec474a3131f94331203e9daa9a7",
    "index": 2,
    "previous_hash": "89f9e9c445690624dceca3ef8f3f43b65f6a6558ffd25c13bc952e9d7624838a",
    "timestamp": 1534501157600
  }
]

详情： https://github.com/OpensourceBooks/blockchain/blob/master/7/readme.md

项目地址： https://github.com/OpensourceBooks/blockchain