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Author Topic: Blockchain-based torrent tracker?  (Read 4594 times)
crazy_rabbit
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January 30, 2013, 12:49:31 PM
 #21

That is quite short- magnet links for example, for movies at popular torrent sites however are many times longer then that. I'd post here an example except for obvious reasons. :-)
As I test I found a long magnet link from a movie site. I took just the hash from that link (the string of hex digits after '?xt=urn:btih:') and searched for that in the DHT network via btdigg.org. This pulled up the correct file information, including a shorter magnet link (without the 'tr' tracker links). This seems to imply that just requiring the hash is fine. I did the same for searching for the archlinux iso (hash e940a7a57294e4c98f62514b32611e38181b6cae) and it came up.

This does seem to indicate however that namecoin isn't needed for storing information since the DHT already has it. Maybe the namecoin provides the "unique identity that can be followed to provide files I'm interested in" aspect.

I didn't know about BTdigg, indeed that sounds like the've already solved the question we were asking. Although perhaps the namecoin blockchain- being merge mined with Bitcoin is more robust?


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January 30, 2013, 01:27:35 PM
 #22

There are some other threads/links about this subject, please check out:

http://dot-bit.org/forum/viewtopic.php?f=5&t=613
https://bitcointalk.org/index.php?topic=127980.0

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January 30, 2013, 02:10:16 PM
 #23

I've created a "btm/testing" name for testing. It should show in about block 93985 where you can see it the magnet links it has posted with:
Code:
namecoind name_history btm/testing

You can list the "btm/" namespace with:
Code:
namecoind name_filter "^btm/.+"
hehe I got it.

You have set up something like a youtube channel.

Quote
Now there needs to be a website that scans that namespace, does a name history on the names, and provides it in a pretty format.

a website? I thought the whole point was doing it without a website. what about a beautiful command line tool? or a simple gui app?


That is quite short- magnet links for example, for movies at popular torrent sites however are many times longer then that. I'd post here an example except for obvious reasons. :-)
As I test I found a long magnet link from a movie site. I took just the hash from that link (the string of hex digits after '?xt=urn:btih:') and searched for that in the DHT network via btdigg.org. This pulled up the correct file information, including a shorter magnet link (without the 'tr' tracker links). This seems to imply that just requiring the hash is fine. I did the same for searching for the archlinux iso (hash e940a7a57294e4c98f62514b32611e38181b6cae) and it came up.

This does seem to indicate however that namecoin isn't needed for storing information since the DHT already has it. Maybe the namecoin provides the "unique identity that can be followed to provide files I'm interested in" aspect.

I didn't know about BTdigg, indeed that sounds like the've already solved the question we were asking. Although perhaps the namecoin blockchain- being merge mined with Bitcoin is more robust?

saw this for the first time, too. also there are other websites that do store plenty of illegal stuff and somehow manage to stay online.

one advantage I see with this besides being totally nerdy is that you can build some reputation for your "channel".



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January 30, 2013, 05:12:06 PM
 #24

Isn't this the kind of thing namecoin should work well for?

-MarkM-


Given that the blockchain is compatible with btc it is not a question which one could but which one should. Great idea if you ask me but I can see a lot of hate coming from purists vetoing use of btc blockchain for storage - makes sense. With that in mind it'd be really cool to see someone try this with namecoin chain or testnet.
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January 30, 2013, 11:04:39 PM
 #25

a website? I thought the whole point was doing it without a website. what about a beautiful command line tool? or a simple gui app?
Yeah, command line tool/gui would be good. A website with a read only view would be good for initial uptake though for those not wanting to install namecoin just to see what it's all about.
marcus_of_augustus
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February 01, 2013, 05:53:33 AM
 #26

Quote
This does seem to indicate however that namecoin isn't needed for storing information since the DHT already has it. Maybe the namecoin provides the "unique identity that can be followed to provide files I'm interested in" aspect.

Namecoin can provide the unique ID look-up to the DHT and the sendtoname facilities that are the most crucial and subject to censhorship ...

this is a great idea and application for namecoin btw.

Edit: also suggest use general namespace id "fs" (fileshare)
e.g.
Code:
namecoind name_new fs/somecoolmovie

Code:
namecoind name_firstupdate fs/somecoolmovie <txid-rand> '<json-value>'

and etc.

doublec
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February 01, 2013, 06:16:43 AM
 #27


Code:
namecoind name_new fs/somecoolmovie

Code:
namecoind name_firstupdate fs/somecoolmovie <txid-rand> '<json-value>'
The problem with using the filename/title as the namecoin key is people will squat them, or set them to fake values.
marcus_of_augustus
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February 01, 2013, 07:10:24 AM
 #28


Code:
namecoind name_new fs/somecoolmovie

Code:
namecoind name_firstupdate fs/somecoolmovie <txid-rand> '<json-value>'
The problem with using the filename/title as the namecoin key is people will squat them, or set them to fake values.

Hmm, yeah you're right about that ... so maybe have the user put there PseudoNym in the name field so it can gain trusted-rep for posting authentic links and have one of the fields in value describe the file content in human-recognizable, searchable form?

Code:
namecoind name_new fs/filesharedude

Code:
namecoind name_firstupdate fs/filesharedude <txid-rand> '{.... "vd": "some_cool_video" ... "ad":"some_cool_audio" ...}'

(plus map to hash value/link)

Each Nym could have however many links fit into allowed data size (and historic linkages using name_history), and Nyms get reputation rating with upvoting via namecoin sendtoname function. Any user could command control if as many reputable Nyms they like.

doublec
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February 01, 2013, 09:48:50 AM
 #29

Each Nym could have however many links fit into allowed data size (and historic linkages using name_history), and Nyms get reputation rating with upvoting via namecoin sendtoname function. Any user could command control if as many reputable Nyms they like.
Right, that's the approach I've been suggesting. I think it should work.
phelix
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February 01, 2013, 03:46:06 PM
 #30

combine with this: https://bitcointalk.org/index.php?topic=140473.msg1495784#msg1495784  and you have a decentralized facebook kind of thing

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