Name.id encoded in blockchain 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?
As mentioned in the above comment, these are Blockstack IDs.

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