Thanks for your patience during the bot maintenance period. Now it has been completed. The main change is the selection of whitelist users is now fully automated and the upvote rules has been updated.

The general rule is that if the average curation return on your posts is close to 25% APR, your account will be whitelisted. This is to make sure this service is sustainable. It will take some time for the bot to collect data and analyze the pattern of the curation return on your post. Usually, there is a threshold value of your average post to achieve the targeted curation return of 25% APR. The method to calculate the curation return is complex, and it depends on several variables, including the amount of your delegation, the total value of your post and the other upvote you got, and when they arrived.

Here is just few examples of calculated curation return:

• Suppose you post will be upvoted with a delay : t
• Your post got the total amount of upvote from others before the bot upvote： P0
• The amount of your delegation：P1

Suppose t= 4 min （20% penalty, a penalty applies to early upvote within 5 minutes after the post created ）
The figure below shows the curation return as a function of the total value of your post. lines with a different color in the figure is associated with different amount of delegation P1

Black line： delegation 100 SP
Blue line： delegation 500 SP
Green line： delegation 1000 SP
Red line： delegation 2000 SP

As you can see, to all different amounts of delegation, the more upvote you got from others within 4 minutes after the post creation, the high the total post value required to be qualified as a whitelisted user. It needs to be pointed out even you are a whitelisted user, if one specific post received a large amount of upvote with 4 minutes, the bot may just skip your post for the day, and your post will not be upvoted, instead, you will receive a daily interest with 25% APR for that day.

I hope this explains a little bit how the bot chooses the whitelist users.

感谢大家在维护期间的耐心等待， 维护已完成。 最大的改变是白名单用户的选择已经完全自动化，白名单用户点赞规则略有更新， 具体规则如下：

通常如果点赞您的贴子得到的 curation平均回报率 年化接近25%时， 您的账户会被自动加入白名单获得20倍代理点赞。 25% 的年化目标是为了能足额发放代理给 本服务的SP用户每日利息，保证此服务的可持续性。 对于新代理用户，机器人可能需要一段时间采集数据，分析curation 回报率是否稳定。为了达到25%的curation回报率，通常要求您的而帖子价值要达一个阈值以上。curation回报率取决于好几个变量，包括您代理的数量， 您帖子的价值，和您收到其他点赞的时间。 计算方法较为复杂。

下面列出了curation回报率在各种情形下的计算结果：

• 假定机器人点赞您的帖子的延迟时间 : t
• 点赞前你已经获得其他点赞量： P0
• 代理数量为：P1

假设t= 4 分钟 （20% penalty, 5分钟内点赞，过早点赞有penalty）
下图显示了在点赞年化收益率随帖子总价值变化的曲线，不同颜色曲线代表了不同代理数量 P1

黑线： 代理数量100 SP
蓝线： 代理数量500 SP
绿线： 代理数量 1000 SP
红线： 代理数量2000 SP

对于所有代理数量，您的帖子在4分钟之内收到的其他点赞量P0越大，进入白名单需要的帖子价值也越大。即使是白名单用户， 如果个别帖子4分钟之内收到的其他点赞量P0过大，机器人有可能会出现漏赞，当天会发放25% 的年化利息，

希望大家现在明白白名单用户是如何选出的。