<p>As mentioned in the above comment, these are Blockstack IDs.</p>

<p><a href="https://blockstack.org/blog/browser-public-alpha" rel="nofollow noreferrer">https://blockstack.org/blog/browser-public-alpha</a></p>

CC BY-SA 3.0
2017-11-04T05:25:52.330Z
2017-11-04T05:25:52.330Z
Eric Allam
<p>I've been working on a tool to decode hex messages inserted into OP_RETURN.  Whilst looking at strings in the blockchain I keep coming across user names with the format id:name.id.</p>

<p>If you run strings over a blk*.dat file you will find strings such as:</p>

<p>id:muneebmajeed.id</p>

<p>id:andrewlawrence.id</p>

<p>id:nicholas_studholmewilson.id</p>

<p>id:jorisheijne.id</p>

<p>id:algoventures.id</p>

<p>id:bgardineer4.id</p>

<p>I can't figure out what they are?</p>

CC BY-SA 3.0
2017-11-03T16:03:24.827Z
Those look like BlockStack IDs. [Reference](https://blockstack.org/blog/browser-public-alpha)
Eric Allam
CC BY-SA 3.0
2017-11-03T16:49:19.823Z
Thank you for the pointer Eric, I had not come across BlockStack before but it would seem you are right.  Thanks again.
user2055268
CC BY-SA 3.0
2017-11-03T18:30:17.197Z
@EricAllam You should post that as an answer
Ava Chow
<identity>
Name.id encoded in blockchain
user2055268
# Name.id encoded in blockchain

(Asked by: username_0 on 2017-11-03)

I've been working on a tool to decode hex messages inserted into OP\_RETURN. Whilst looking at strings in the blockchain I keep coming across user names with the format id:name.id.

If you run strings over a blk\*.dat file you will find strings such as:

id:muneebmajeed.id

id:andrewlawrence.id

id:nicholas\_studholmewilson.id

id:jorisheijne.id

id:algoventures.id

id:bgardineer4.id

I can't figure out what they are?

**Tags:** identity

> **Comments:**
> **username_1**: Those look like BlockStack IDs. [Reference](https://blockstack.org/blog/browser-public-alpha)  
> **username_0**: Thank you for the pointer Eric, I had not come across BlockStack before but it would seem you are right.  Thanks again.  
> **username_2**: @EricAllam You should post that as an answer  

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## 1 answers

### Answer by username_1 on 2017-11-04. Score: 2

As mentioned in the above comment, these are Blockstack IDs.

<https://blockstack.org/blog/browser-public-alpha>


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