EOS主網(wǎng)的genesis.json是一個(gè)重要的配置文件，它決定了EOS網(wǎng)絡(luò)的起源狀態(tài)。在這里，我們將介紹一些關(guān)于genesis.json的基本知識(shí)。

首先講一下genesis.json的作用。它定義了EOS主網(wǎng)最初的全局狀態(tài)，包括初始代幣分配、代幣符號(hào)、網(wǎng)絡(luò)參數(shù)、代理和生產(chǎn)者等角色的分配等。只有當(dāng)這些參數(shù)被正確地設(shè)置，整個(gè)主網(wǎng)才能夠正常地運(yùn)行起來(lái)。

{
"initial_timestamp": "2021-09-17T12:00:00.000",
"initial_key": "EOS8....",
"initial_configuration": {
"max_block_size": 1048576,
"target_block_size": 512,
"max_transaction_size": 131072,
"max_block_cpu_usage": 200000,
"max_transaction_cpu_usage": 150000,
"max_transaction_lifetime": 3600,
"max_block_net_usage": 1048576,
"target_block_net_usage_pct": 1000
},
"initial_allocations": [
{
"balance": "1000000000.0000 EOS",
"key": "EOS8...."
},
{
"balance": "800000000.0000 EOS",
"key": "EOS8...."
},
{
"balance": "700000000.0000 EOS",
"key": "EOS8...."
}
],
"initial_producers": [
{
"producer_key": "EOS6....",
"block_signing_key": "EOS6....",
"name": "producer1",
"location": 0,
"url": "http://producer1.com"
},
{
"producer_key": "EOS6....",
"block_signing_key": "EOS6....",
"name": "producer2",
"location": 1,
"url": "http://producer2.com"
},
{
"producer_key": "EOS6....",
"block_signing_key": "EOS6....",
"name": "producer3",
"location": 2,
"url": "http://producer3.com"
}
]
}

以上是一個(gè)genesis.json文件的結(jié)構(gòu)示例。其中initial_timestamp代表鏈的起始時(shí)間，initial_key代表鏈的初始區(qū)塊生成者的公鑰，initial_configuration設(shè)置了一些網(wǎng)絡(luò)參數(shù)，比如交易大小等，initial_allocations是初始代幣的分配，initial_producers則是生產(chǎn)者的定義。

總的來(lái)說(shuō)，genesis.json是EOS主網(wǎng)的基石，它為EOS區(qū)塊鏈的正常運(yùn)行提供了必要的參數(shù)和初始化設(shè)置，它應(yīng)該得到足夠的重視。