<p>I am not aware of any cryptocurrency that has block times of greater than 10 minutes, but I am very familiar with the desire to limit growth of the block chain.</p>

<p>Monero recently increased its block time from 1 to 2 minutes in part for the reason you mentioned (but also in part to reduce the # of orphan blocks which occur more frequently when block times are very short)</p>

<p>Monero uses an adaptive blocksize that automatically scales based on blockchain usage.</p>

<p><a href="https://www.reddit.com/r/Monero/comments/45b8qn/my_journey_to_finding_monero_and_some_questions/czwlcdb">https://www.reddit.com/r/Monero/comments/45b8qn/my_journey_to_finding_monero_and_some_questions/czwlcdb</a></p>

<p>A quadratic penalty is imposed such that block subsidy = base subsidy * ((block size / median size of last 400 blocks) - 1)², with the penalty being applied after you build a block larger than the median size. The maximum block size is 2*median size. Because subsidy is based around the number of coins in existence, the 'burned' subsidy is deferred to be paid out to future blocks.</p>

CC BY-SA 3.0
2016-05-21T20:41:45.787Z
2016-05-21T20:41:45.787Z
studycrypto
<p>So there are a lot of cryptocurrencies that tries to improve on Bitcoin's  1 Mb block size limit and 10 minute block time (6MB per hour) by using faster block times or larger block size limits. For example litecoin has 1 Mb block size limit and block time is 2.5 minutes (24MB per hour). Dogecoin has 500kb block size limit and block time is 1 minutes (30 MB per hour).  </p>

<p>Is there any cryptocurrency that does the opposite and uses either a longer block time or a smaller block size, with the intention of limiting blockchain growth?</p>

CC BY-SA 3.0
2015-07-04T03:38:11.340Z
It seems like a better approach to preventing the blockchain from getting bigger would be to have unspent transaction output commitments on a regular basis. I know that NXT does this.
Nick ODell
CC BY-SA 3.0
2015-07-04T17:03:32.370Z
can you expand on this? are you talking about "checkpoints"
k kurokawa
<altcoin><blocksize><block-size-increase>
Cryptocurrency with small block size limit or large block time
k kurokawa
# Cryptocurrency with small block size limit or large block time

(Asked by: username_0 on 2015-07-04)

So there are a lot of cryptocurrencies that tries to improve on Bitcoin's 1 Mb block size limit and 10 minute block time (6MB per hour) by using faster block times or larger block size limits. For example litecoin has 1 Mb block size limit and block time is 2.5 minutes (24MB per hour). Dogecoin has 500kb block size limit and block time is 1 minutes (30 MB per hour).

Is there any cryptocurrency that does the opposite and uses either a longer block time or a smaller block size, with the intention of limiting blockchain growth?

**Tags:** altcoin, blocksize, block-size-increase

> **Comments:**
> **username_1**: It seems like a better approach to preventing the blockchain from getting bigger would be to have unspent transaction output commitments on a regular basis. I know that NXT does this.  
> **username_0**: can you expand on this? are you talking about "checkpoints"  

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## 1 answers

### Answer by username_2 on 2016-05-21. Score: 5

I am not aware of any cryptocurrency that has block times of greater than 10 minutes, but I am very familiar with the desire to limit growth of the block chain.

Monero recently increased its block time from 1 to 2 minutes in part for the reason you mentioned (but also in part to reduce the # of orphan blocks which occur more frequently when block times are very short)

Monero uses an adaptive blocksize that automatically scales based on blockchain usage.

<https://www.reddit.com/r/Monero/comments/45b8qn/my_journey_to_finding_monero_and_some_questions/czwlcdb>

A quadratic penalty is imposed such that block subsidy = base subsidy \* ((block size / median size of last 400 blocks) - 1)², with the penalty being applied after you build a block larger than the median size. The maximum block size is 2\*median size. Because subsidy is based around the number of coins in existence, the 'burned' subsidy is deferred to be paid out to future blocks.


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