# Number of blocks and reward mined during the slow start

**URL:** https://forum.zcashcommunity.com/t/number-of-blocks-and-reward-mined-during-the-slow-start/35654
**Category:** Mining
**Created:** [December 18, 2019, 5:09pm UTC](https://forum.zcashcommunity.com/t/number-of-blocks-and-reward-mined-during-the-slow-start/35654 "2019-12-18T17:09:33Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![kennethmyhra](https://avatars.discourse-cdn.com/v4/letter/k/e19adc/32.png) [@kennethmyhra](https://forum.zcashcommunity.com/u/kennethmyhra)
#### Post date: [December 18, 2019, 5:09pm UTC](https://forum.zcashcommunity.com/t/number-of-blocks-and-reward-mined-during-the-slow-start/35654/1 "2019-12-18T17:09:33Z")

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Hey guys,

I am trying to figure out how many blocks and coins were mined during the slow start.

So here goes:

- How many blocks were mined during the slow start?
- How can I calculate the reward per block during the slow start?

Let’s say if it was linear (which I have read somewhere) and that the slow start ended at block 5000, then maybe I could calculate the reward per block like: N / 5000 \* 12.5

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### Author: ![Shawn](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/shawn/32/187_2.png) [@Shawn](https://forum.zcashcommunity.com/u/Shawn)
#### Post date: [December 18, 2019, 5:15pm UTC](https://forum.zcashcommunity.com/t/number-of-blocks-and-reward-mined-during-the-slow-start/35654/2 "2019-12-18T17:15:25Z")

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You can probably find the formula here: [Implement mining slow start by str4d · Pull Request #887 · zcash/zcash · GitHub](https://github.com/zcash/zcash/pull/887)

And here: [https://github.com/zcash/zcash/commit/649c10109677de15df48f1142f936b94ed98014c](https://github.com/zcash/zcash/commit/649c10109677de15df48f1142f936b94ed98014c)

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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: [December 18, 2019, 10:33pm UTC](https://forum.zcashcommunity.com/t/number-of-blocks-and-reward-mined-during-the-slow-start/35654/3 "2019-12-18T22:33:01Z")

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See here [Which ZEC explorer is realtime & correct? - #9 by str4d](https://forum.zcashcommunity.com/t/which-zec-explorer-is-realtime-correct/34587/9) and there is some discussion before that post. There were 125,000 ZEC mined during the slowstart.