# CIP Draft - Instant Lottery

**URL:** <https://forums.counterparty.io/t/cip-draft-instant-lottery/3020>\
**Category:** Counterparty\
**Created:** [May 22, 2017, 8:16am UTC](https://forums.counterparty.io/t/cip-draft-instant-lottery/3020 "2017-05-22T08:16:42Z")\
**Posts on this page:** 1\
**Showing post:** 10

<div class="post-metadata">

**Author:** ![JPJA](https://yyz2.discourse-cdn.com/flex004/user_avatar/forums.counterparty.io/jpja/32/1324_2.png) [@JPJA](https://forums.counterparty.io/u/JPJA)\
**Post date:** [May 23, 2017, 5:27pm UTC](https://forums.counterparty.io/t/cip-draft-instant-lottery/3020/10 "2017-05-23T17:27:23Z")

</div>

I did some more (and better, I think) calculations on withholding attack profitability.

The conclusion doesn’t change, so I won’t spam more here, but feel free to study and verify the numbers in [another thread](https://forums.counterparty.io/t/blockhash-for-randomness-vs-block-withholding-attack/2814/6).

---

_[View the full topic](https://forums.counterparty.io/t/cip-draft-instant-lottery/3020)._