Bitcoin Forum
December 02, 2016, 08:33:29 PM *
News: Latest stable version of Bitcoin Core: 0.13.1  [Torrent].
 
   Home   Help Search Donate Login Register  
Pages: [1]
  Print  
Author Topic: Bitcoin on a Delay-tolerant network  (Read 1658 times)
tom_a_sparks
Newbie
*
Offline Offline

Activity: 3


View Profile
June 01, 2011, 02:31:10 PM
 #1

How would bitcoin work on a delay-tolerant network like Probabilistic Routing Protocol using History of Encounters and Transitivity (PRoPHET) [1] ?

[1] http://tools.ietf.org/html/draft-irtf-dtnrg-prophet
1480710809
Hero Member
*
Offline Offline

Posts: 1480710809

View Profile Personal Message (Offline)

Ignore
1480710809
Reply with quote  #2

1480710809
Report to moderator
1480710809
Hero Member
*
Offline Offline

Posts: 1480710809

View Profile Personal Message (Offline)

Ignore
1480710809
Reply with quote  #2

1480710809
Report to moderator
1480710809
Hero Member
*
Offline Offline

Posts: 1480710809

View Profile Personal Message (Offline)

Ignore
1480710809
Reply with quote  #2

1480710809
Report to moderator
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
1480710809
Hero Member
*
Offline Offline

Posts: 1480710809

View Profile Personal Message (Offline)

Ignore
1480710809
Reply with quote  #2

1480710809
Report to moderator
1480710809
Hero Member
*
Offline Offline

Posts: 1480710809

View Profile Personal Message (Offline)

Ignore
1480710809
Reply with quote  #2

1480710809
Report to moderator
1480710809
Hero Member
*
Offline Offline

Posts: 1480710809

View Profile Personal Message (Offline)

Ignore
1480710809
Reply with quote  #2

1480710809
Report to moderator
Cdecker
Hero Member
*****
Offline Offline

Activity: 487



View Profile WWW
June 01, 2011, 03:23:40 PM
 #2

Interesting :-)
Will look into it, but so far I'd say that it depends on what part of the network you want to put on top of the delay-tolerant network. The mining part wont work at all since we try to establish a proof-of-work backed quorum on the network state. Similar to the Marscoin discussion a few weeks back it simply does not work if communication delays are high. On the other hand payment processing might work, as long as transactions are propagated to the mining network eventually and back to the originating client for local book keeping.

Want to see what developers are chatting about? http://bitcoinstats.com/irc/bitcoin-dev/logs/
Bitcoin-OTC Rating
phillipsjk
Legendary
*
Offline Offline

Activity: 1008

Let the chips fall where they may.


View Profile WWW
June 01, 2011, 06:20:19 PM
 #3

As far as I can tell, the bitcoin protocol does not work if the round trip time is longer than the TCP time-out (2 minutes).

In any case, you can't expected to generate (many) new blocks if your round trip time is longer than the block chain interval of about 10 minutes.

I think this limitation may be serious enough to undermine Bitcoin in the long-term. Somebody on these forums has suggested that isolated groups (like a Mars colony) may simply start their own block-chain for local use. Not sure how exchanges between networks would work. You would probably need to use a trusted courier to move a wallet.dat (for each network) within "range" of the main network periodically.


James' OpenPGP public key fingerprint: EB14 9E5B F80C 1F2D 3EBE  0A2F B3DE 81FF 7B9D 5160
Cdecker
Hero Member
*****
Offline Offline

Activity: 487



View Profile WWW
June 01, 2011, 07:04:35 PM
 #4

As far as I can tell, the bitcoin protocol does not work if the round trip time is longer than the TCP time-out (2 minutes).

In any case, you can't expected to generate (many) new blocks if your round trip time is longer than the block chain interval of about 10 minutes.

I think this limitation may be serious enough to undermine Bitcoin in the long-term. Somebody on these forums has suggested that isolated groups (like a Mars colony) may simply start their own block-chain for local use. Not sure how exchanges between networks would work. You would probably need to use a trusted courier to move a wallet.dat (for each network) within "range" of the main network periodically.
The TCP delay is not a limit, even if the RTT is huge the transactions might eventually reach the bitcoin network and be accepted there. Mining is a problem, but simply because due to the delay a block from the lower delay network might have superseeded your block. The longer it takes for your block to propagate the lower the chances of it becoming the next effective block.

As for the Mars/Moon/Earth exchanges: they do work. Take MtGox for example, there is no longer delay network than sending money via wire transfer xD

Want to see what developers are chatting about? http://bitcoinstats.com/irc/bitcoin-dev/logs/
Bitcoin-OTC Rating
compro01
Hero Member
*****
Offline Offline

Activity: 485


View Profile
June 01, 2011, 07:14:18 PM
 #5

I think this limitation may be serious enough to undermine Bitcoin in the long-term. Somebody on these forums has suggested that isolated groups (like a Mars colony) may simply start their own block-chain for local use. Not sure how exchanges between networks would work. You would probably need to use a trusted courier to move a wallet.dat (for each network) within "range" of the main network periodically.

depends on how exactly the new block chain formed.  i.e. forked from the existing chain via a rule change or started completely on its own.

if the former, it could get messy.

with the latter, they would function as two independent currencies and exchanges would work the same as currency exchanges do now, bitcoin or other, though pegging the currencies to each other would likely be desirable.
tom_a_sparks
Newbie
*
Offline Offline

Activity: 3


View Profile
June 02, 2011, 06:23:41 AM
 #6

ok, so the colonies have their own block chains, so how are the transaction made between the colonies?
what about people who travel between the colonies?
Stephen Gornick
Legendary
*
Offline Offline

Activity: 1988



View Profile
June 02, 2011, 08:34:50 AM
 #7

How would bitcoin work on a delay-tolerant network like Probabilistic Routing Protocol using History of Encounters and Transitivity (PRoPHET) [1] ?

Here are two related threads:
 - http://forum.bitcoin.org/index.php?topic=1838.0
 - http://forum.bitcoin.org/index.php?topic=3714.0

tom_a_sparks
Newbie
*
Offline Offline

Activity: 3


View Profile
June 02, 2011, 11:34:23 AM
 #8

How would bitcoin work on a delay-tolerant network like Probabilistic Routing Protocol using History of Encounters and Transitivity (PRoPHET) [1] ?

Here are two related threads:
 - http://forum.bitcoin.org/index.php?topic=1838.0
interesting read, saved to my projects folder

I though of using a freenet-like network with proxy servers for the Internet access
Maged
Legendary
*
Offline Offline

Activity: 1260


View Profile
June 02, 2011, 06:08:35 PM
 #9

ok, so the colonies have their own block chains, so how are the transaction made between the colonies?
what about people who travel between the colonies?
You wouldn't be able to mine the Earth chain from Mars, but transactions would still work... slowly. VERY slowly. Hence the need for MarsCoin.

Stephen Gornick
Legendary
*
Offline Offline

Activity: 1988



View Profile
June 03, 2011, 05:08:20 AM
 #10

  I though of using a freenet-like network with proxy servers for the Internet access

You might want to see these also then:
 - http://forum.bitcoin.org/?topic=8379.0
 - http://forum.bitcoin.org/?topic=7181.0
 -

Pages: [1]
  Print  
 
Jump to:  

Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!