# Request for ZK circuit usage statistics

**URL:** https://forum.zcashcommunity.com/t/request-for-zk-circuit-usage-statistics/35516
**Category:** General
**Created:** [November 27, 2019, 10:10pm UTC](https://forum.zcashcommunity.com/t/request-for-zk-circuit-usage-statistics/35516 "2019-11-27T22:10:44Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![garethtdavies](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/garethtdavies/32/210_2.png) [@garethtdavies](https://forum.zcashcommunity.com/u/garethtdavies)
#### Post date: [November 28, 2019, 2:44am UTC](https://forum.zcashcommunity.com/t/request-for-zk-circuit-usage-statistics/35516/3 "2019-11-28T02:44:04Z")

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I just ran the stats up to block 645576. This is a monthly breakdown but it includes all the totals for everything you asked in the last line. In the output Shielding is t-\>z and Deshielding is z-\>t with Shielded being z-\>z. [Output of zcash metrics script · GitHub](https://gist.github.com/garethtdavies/f28042d93615f77858e196a2a79827bf)

You can also validate this yourself should you wish - I posted this previously here: [Measuring Shielded Adoption](https://forum.zcashcommunity.com/t/measuring-shielded-adoption/35022)

Yes, it’s still possible to do z-\>z on Sprout, as you can see there were 24 for example this month.

Looks like fully shielded Sapling (17191) has just passed fully shielded Sprout (16537) this month.

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