巴比伦块奖励计算

Question

巴比伦块奖励计算

- 2
- 216 2019-10-28
在巴比伦的块奖励计算中似乎存在错误.

例如,在方框664451中,有26个背书.因此奖励应为16 * (0.8 + 0.2 * 26 / 32) = 15.4 XTZ(源).但是面包师得到了14.4 XTZ.

有人可以解释奖励的实际计算方式,为什么预期金额与实际奖励之间存在差异?

There seems to be a bug in the block reward calculation in Babylon.

For example, in block 664451 there were 26 endorsements. So the reward should be 16 * (0.8 + 0.2 * 26 / 32) = 15.4 XTZ (source). But the baker got 14.4 XTZ.

Can someone explain how the reward is actually calculated, and why there is a discrepancy between the expected amount and the actual reward?

protocol rewards babylon
- 原文
- Ezy

2 个回答

投票数

- 1
- 2019-10-28
这是巴比伦中的错误,是由于在错误的位置使用整数除法引起的,并将在下一个建议中修复.
现在,您可以使用以下公式计算奖励:
公式为:((16 000 000 * (8 + floor(2 * e / 32))) / 10) / (1 + p)
更多信息: https://twitter.com/iguerDUNE/status/1184095825296871425

This is a bug in babylon caused by using an integer division in a wrong place and will be fixed in the next proposal.
For now you can use the following formula to calculate the rewards :
The formula is : ((16 000 000 * (8 + floor(2 * e / 32))) / 10) / (1 + p)
More info : https://twitter.com/iguerDUNE/status/1184095825296871425
- 谢谢！您能提供资料吗?上下文?实施等?
  
  Thanks! Could you please provide sources ? Context ? Implementation etc ?
  - 0
  - 2019-10-28
  - Ezy
- 这实际上是巴比伦的一个错误.应该没有下限函数,但是他们使用了整数除法导致了这种现象. 这将在下一个建议中解决.
  
  This is actually a bug in babylon. there should not be the floor function, but they used an integer division which has caused this behavior. This will be fixed in the next proposal.
  - 0
  - 2019-10-28
  - FiFtHeLeMeNt
- 是的,因此,如果您可以根据实际情况回答问题,并提供更多信息,链接等,以便每个人都可以理解,那将是很好的
  
  Yes so it would be great if you could contextualize the answer, and provide more infos, links etc so that everyone can understand
  - 0
  - 2019-10-28
  - Ezy
- 我提供了更多信息:)
  
  I provided more info :)
  - 0
  - 2019-10-28
  - FiFtHeLeMeNt
- 嗨,这不是官方信息.您是否可以参考官方文档或实现?
  
  Hi this is not official info. Would it be possible you refer to official doc or implementation maybe ?
  - 0
  - 2019-10-28
  - Ezy

slarquie1 · Accepted Answer · 2019-10-28

4

2019-10-28

巴比伦中使用的确切公式可以在这里找到:

https://gitlab.com/tezos/tezos/blob/mainnet/src/proto_005_PsBabyM1/lib_protocol/baking.ml#L190

这涉及到:

(((1600000000 *(8 + 2 *e/32))/10)/(1 +p)

但是请注意,这些是整数除法,因此,在您的示例中:

8 + 2 * 26/32=8 + 52/32=8 + 1 =9

16000万微升* 9=144000万微升

144000万微升/10=14400 000微升=14.4ꜩ

编辑:此反馈来自Tezos开发人员TG组.您可以查看此电子表格,以更好地理解块奖励的计算: https://files.fm/u/hb5eazkk

正确的公式应该是

Correct formula ought to be
- 0
- 2019-10-28
- Arthur B
(16000000 *(256 + 2 *e))/(320 *(1 +p))

(16 000 000 * (256 + 2 * e)) / (320 * (1 + p))
- 1
- 2019-10-28
- Arthur B
谢谢！您能否在一些描述和实现中添加来源/参考?

Thanks! Could you please add sources/reference to some description and implementation ?
- 0
- 2019-10-28
- Ezy