关于API数据有一些疑问：
https://developers.hive.io/tutorials-python/get_post_details.html
通过API获取post details的数据中，有三个关于reward的变量。
total_payout_value - Tracks the total payout this content has received over time, measured in the debt asset.
curator_payout_value - Tracks the curator payout this content has received over time, measured in the debt asset.
author_rewards - Tracks the author payout this content has received over time, measured in the debt asset.
我的理解是total_payout_value和author_rewards是相等的，都是给author 的reward，不过前一个是以HBD为单位，后一个是以VESTS为单位。curator_payout_value是以HBD为单位的给curator的rewards，通常和total_payout_value数值相等。
那如果要将VESTS转化为HP，就需要用到当时的HP总量和VESTS总量，不知道有人知道哪里能得到HP\VESTS 比例的历史数据？
