[ANN] Bitcoin blockchain data torrent

[ddrown]

Since I was curious about the new torrent, here's some info:

new bootstrap.dat contains up to block height 313000 (July 8 )

The new block data (this is using the hexidecimal form) matches my bitcoind's:

$ ./blockheight -l 295001 < bootstrap-313000.dat | sha256sum
6cccd54b215799d91b6781b190903fb5673cf6413d2a93c5ebe26223e3b2de21  -
$ for((i = 295001; i < 313001; i++)); do  ./bitcoin-cli getblock `./bitcoin-cli getblockhash $i` false ; done | sha256sum
6cccd54b215799d91b6781b190903fb5673cf6413d2a93c5ebe26223e3b2de21  -

Previous data matches:

$ dd if=bootstrap-313000.dat bs=335633 count=52206 2>/dev/null | sha1sum
78a4b41ba7ed823c78cd9ca81a6de393c0ccc226  -
$ sha1sum bootstrap-295000.dat
78a4b41ba7ed823c78cd9ca81a6de393c0ccc226  bootstrap-295000.dat


Can you re-add a http:// based tracker?  The UDP trackers aren't supported by older transmission (2.13 from EPEL).  The exodus.desync.com tracker in the previous torrent seems to be working well.

Edit: UDP trackers actually do support IPv6, but support varies depending on your torrent software.

[rme]

Seeding new torrent 24/7

[2112]

I don't pretend to be a tracker expert, and actively solicit suggestions.

I would certainly bias towards less politicized + more reliable trackers.

Please post your tracker suggestions.

I nominate two trackers that are open, differently politicized and seem to work reliably globally.

http://tracker.humblebundle.com:2710/announce

http://bttracker.crunchbanglinux.org:6969/announce

If you are changing trackers in your torrent, please replace remove ccc.de with demonii.com. In my opinion it doesn't make sense to use more than 6 classic trackers in addition to DHT and PEX that are used in a non-private torrent. You should be able to change the torrent without changing infohash, the trackers are in the "announce" section that isn't covered by the hash of the "info" section. There are apps and web sites that will help you do that change, although I don't have links handy.

From the other trackers that were used in the past: h33t.com domain is disabled by a complex legal issue and won't be back for a while.

I'm not a torrent&tracker expert either, but have fresh experience troubleshooting these problems for the others.

Edit:

The exodus.desync.com tracker in the previous torrent seems to be working well.

No, please don't. This is an example of dual-stack IPv4+IPv6 tracker that causes problems to many Windows users. Modern Windows versions support IPv6 out-of-the-box via Teredo tunnels and this just causes trouble and confuses the beginning users. The IPv4 side of this tracker is not globally accessible, some big European ISPs are on their block-list.

Edit2:

Upon further review of the recent torrent statistics in Windows I'm going to advise against using open.demonii.com. Again the problem is dual stack IPv4+IPv6 with bad accessibility from various places around the globe.

Edit3:

Since I've posted this humblebundle.com implemented registration & filtering in their tracker, so it won't work with 3rd party torrents.

[zvs]

Maybe it should be changed to "udp://open.demonii.com:1337" like all the newer torrents? This new tracker is accessible worldwide.

udp://open.demonii.com:1337 is by far the best

also

udp://tracker.openbittorrent.com:80/announce

udp://tracker.publicbt.com:80/announce

http: //open.nyaatorrents.info:6544/announce , which i guess you can use for things other than anime

udp://tracker.ex.ua:80/announce

udp://coppersurfer.tk:6969/announce

udp://9.rarbg.com:2710/announce

udp://glotorrents.com:6969/announce

and istole.it still works i guess

[colinistheman]

From a security standpoint: Doesn't sharing the Bitcoin blockchain file like this cause the file to become at the mercy of the original uploader's intents? (and thus centralized?)

For example, if the uploader of this bittorrent blockchain file decides to share an altered/corrupted version of the file, and if everyone uses his version (assuming he has over 50% of people using his version of the file) then his blockchain version will be effectively adopted including all alterations to it?

Just speculation here as to the potential drawbacks of this method.

It seems to centralize the blockchain, due to the one individual starting the torrent.

[rav3n_pl]

It is very easy to check, we have at least dozen of block explorers.
When u use some of this torrents, you just need check for block hash and it is all clear.
Blockchain can not be corrupted/faked because of power that is need to solve single block. And all blocks after this "crafted" one have to be solved to.

[2112]

Just speculation here as to the potential drawbacks of this method.

Chances of corrupting bitcoin client by feeding it a corrupted bootstrap.dat are the same as feeding it corrupted data through the listening port: pretty low, mostly wasting time and bandwidth.

The only nefarious thing I can think of is to seed it and listen for the fresh leechers. Statistically speaking there's much higher chance than the leecher of this torrent is a Bitcoin beginner and is possibly somewhat impatient. Therefore there are bigger chances that the leeching computer is still not properly configured/secured and attacking it may give a higher chance of finding a successful exploit.

[giveBTCpls]

How safe is to download the blockchain from a source that isn't directly Bitcoin QT? Im too paranoid in regards to this so I always end up downloading it directly from the software. Could Bitcoin.com have an at least weekly updated torrent?

[2112]

How safe is to download the blockchain from a source that isn't directly Bitcoin QT? Im too paranoid in regards to this so I always end up downloading it directly from the software. Could Bitcoin.com have an at least weekly updated torrent?

With this level of paranoia you'll really be better off by seeking help from the behavioral health professional. Or maybe a clergyman.

The honest computer science professional will have no constructive advice to you.

You'll become just a fodder for computer science quacks or scientologists.

[rme]

From a security standpoint: Doesn't sharing the Bitcoin blockchain file like this cause the file to become at the mercy of the original uploader's intents? (and thus centralized?)

For example, if the uploader of this bittorrent blockchain file decides to share an altered/corrupted version of the file, and if everyone uses his version (assuming he has over 50% of people using his version of the file) then his blockchain version will be effectively adopted including all alterations to it?

Just speculation here as to the potential drawbacks of this method.

It seems to centralize the blockchain, due to the one individual starting the torrent.

If only one peer has a better blockchain your client downloads that one.

[sd]

Beta-testing and pre-seeding a new torrent at http://gtf.org/garzik/bitcoin/bootstrap.dat.torrent

Please only join if you already have an old bootstrap.dat file, or you built the new one yourself using linearize.py and bitcoind.

And lose my seed ratio of 115!?

I suggest some of us keep seeding the currently live version until the demand for it drops off.

[th3joker]

Wouldn't it be better to upload this to usenet?

At least people could download it at the full speed of their internet connection then.

I would upload it if I could work out how to do it, also my upload speed is crappy compared to download.

[Sukrim]

This torrent usually is well enough seeded that normal internet lines should be easily saturated. I don't really see a reason to spam Usenet servers with data to accomplish this...

[Mr_Banana_Split]

 Anyone know a good website with visuals on blockchain growth? (and/or other alts would be cool too)

thankxx!

 mbs

[rme]

 Anyone know a good website with visuals on blockchain growth? (and/or other alts would be cool too)

thankxx!

 mbs

https://blockchain.info/charts/blocks-size

[bitpop]

What about the classic torcache

[dexX7]

TIL:

- This torrent is extremely useful, thanks Jeff and all the seeders!
- DO droplets are much faster than I expected.

[aahzmundus]

When is the new torrent going "Public"?

[zvs]

This torrent usually is well enough seeded that normal internet lines should be easily saturated. I don't really see a reason to spam Usenet servers with data to accomplish this...

Bitcoin blockchain would be some miniscule amount of traffic to these Usenet servers.   Astraweb and Giganews and what not get terrabytes of TV shows every hour during primetime, lol.

Besides, you could just create a bitcoin binaries newsgroup for it.

[Taxidermista]

Since I was curious about the new torrent, here's some info:

new bootstrap.dat contains up to block height 313000 (July 8 )

WTF are you talking about? Last torrent was from april 2014.