数据模型

The Transaction Model

交易的结构

{
"id": "<hash of transaction, excluding signatures>",
"version": "<version number of the transaction model>",
"inputs": ["<list of inputs>"],
"outputs": ["<list of outputs>"],
"operation": "<string>",
"asset": "<asset model>",
"metadata": "<any JSON document>"
}

• id: 交易的id，也数据库的主键
• version：Version number of the transaction model
• inputs：
• outputs：
• operation：正在执行的操作的字符串表示形式，可以是“CREATE”, “TRANSFER” 或者 “GENESIS”
• asset：定义的资产
• metadata：用户提供的交易元数据，可以是任何JSON文档，也可以是NULL

The Asset Model

为了避免交易中的冗余数据，对于CREATE and TRANSFER交易，资产模型是不同的。
在 CREATE 交易中，“资产”必须正好包含一个键-值对，键必须是“data”，值可以是任何有效的JSON文档，也可以是null
在 TRANSFER 交易中，“资产”必须正好包含一个键-值对。键必须是“id”，值必须包含交易id。the ID of the CREATE transaction which created the asset, which also serves as the asset ID

Inputs and Outputs

pass

The Block Model

区块的结构

{
    "id": "<hash of block>",
    "block": {
        "timestamp": "<block-creation timestamp>",
        "transactions": ["<list of transactions>"],
        "node_pubkey": "<public key of the node creating the block>",
        "voters": ["<list of public keys of all nodes in the cluster>"]
    },
    "signature": "<signature of block>"
}

• id: 序列化的内部块的散列
• timestamp: 创建块的Unix时间, 它由创建块的节点提供
• transactions: A list of the transactions included in the block
• node_pubkey: The public key of the node that created the block
• voters: 创建块时所有集群节点的公钥列表
• signature: 创建块的节点对块的加密签名。为了生成签名，节点使用node_pubkey对应的私钥对序列化后的内部块进行签名

The Vote Model

投票的结构

{
    "node_pubkey": "<The public key of the voting node>",
    "vote": {
        "voting_for_block": "<ID of the block the node is voting on>",
        "previous_block": "<ID of the block previous to the block being voted on>",
        "is_block_valid": "<true OR false>",
        "invalid_reason": null,
        "timestamp": "<Unix time when the vote was generated, provided by the voting node>"
    },
    "signature": "<Cryptographic signature of vote>"
}