# A new perspective on PoT

**URL:** <https://forum.autonomys.xyz/t/a-new-perspective-on-pot/1615>\
**Category:** Research\
**Created:** [August 21, 2023, 12:23am UTC](https://forum.autonomys.xyz/t/a-new-perspective-on-pot/1615 "2023-08-21T00:23:30Z")\
**Posts on this page:** 1\
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**Author:** ![Chen\_Feng\_2023](https://avatars.discourse-cdn.com/v4/letter/c/e56c9b/32.png) [@Chen\_Feng\_2023](https://forum.autonomys.xyz/u/Chen_Feng_2023)\
**Post date:** [August 21, 2023, 2:09am UTC](https://forum.autonomys.xyz/t/a-new-perspective-on-pot/1615/2 "2023-08-21T02:09:41Z")

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The above new perspective allows us to compare different design choices.

**Design choice 1** : A new block of height (m+1)c triggers an entropy-injection event where m is a non-negative integer and c is relatively large. The entropy is from its ancestor block of height m c. The injection time is t\_{mc} + T, where t\_{mc} is the time slot the ancestor block is produced. If t\_{mc} + T \le t\_{(m+1)c}, we give up this injection opportunity.

**Discussion** : The growth rate of the honest block tree is still at least \lambda\_h \frac{1}{1 + \lambda\_h \Delta} (because honest farmers will not take advantage of entropy injection at all). The growth rate of the private block tree is still at most \phi\_c \lambda\_a (because we may lose some injection opportunities). Also, the adversary cannot go back in time.

**Design choice 2** : A new block of height mc triggers an entropy-injection event where m is a non-negative integer and c is relatively large. The entropy is simply from this new block. The injection time is t\_{mc} + T, where t\_{mc} is the time slot this new block is produced. Here, T is relatively large.

I feel that a very similar discussion applies here. I will double check.

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