<p>Storing data on the blockchain is frowned upon. Since the blockchain is replicated on all non-pruned full nodes and downloaded by all full nodes, thousands of people must spend the extra resources to download and host your data on their machines for essentially eternity. This costs money and disk space while also taking up valuable block space that would otherwise be used to confirm someone's money-transferring transaction.</p>

CC BY-SA 3.0
2017-06-27T00:03:26.247Z
Also, if that file is of any significant size, it won't be economically feasible to buy the blockspace for it.
Murch
CC BY-SA 3.0
2017-06-16T08:00:33.457Z
2017-06-16T08:00:33.457Z
Ava Chow
<p>I see that some new services are based on the possibility of storing information in the bitcoin system. For example, you can use it to store an encrypted file with a blueprint of an invention.</p>

<p>Is this use endorsed, accepted, or expected?</p>

<p>Could services build like this be reliable?</p>

CC BY-SA 3.0
2017-06-27T01:47:14.623Z
Do you want to store the actual data, or just create a proof of existence?
Murch
<op-return><blockchain-data-storage>
Is it feasible to store information in the Bitcoin system?
Evan Joes
# Is it feasible to store information in the Bitcoin system?

(Asked by: username_0 on 2017-06-13)

I see that some new services are based on the possibility of storing information in the bitcoin system. For example, you can use it to store an encrypted file with a blueprint of an invention.

Is this use endorsed, accepted, or expected?

Could services build like this be reliable?

**Tags:** op-return, blockchain-data-storage

> **Comments:**
> **username_1**: Do you want to store the actual data, or just create a proof of existence?  

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## 1 answers

### Answer by username_2 on 2017-06-16. Score: 2

Storing data on the blockchain is frowned upon. Since the blockchain is replicated on all non-pruned full nodes and downloaded by all full nodes, thousands of people must spend the extra resources to download and host your data on their machines for essentially eternity. This costs money and disk space while also taking up valuable block space that would otherwise be used to confirm someone's money-transferring transaction.

> **Comments:**
> **username_1**: Also, if that file is of any significant size, it won't be economically feasible to buy the blockspace for it.  

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