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The SourceForge project page for Bitcoin provides a blockchain download at http://sourceforge.net/projects/bitcoin/files/Bitcoin/blockchain/ but this file is old/dated.

How and where can I download an up to date copy of the Bitcoin block chain?

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I found this eu2.bitcoincharts.com/blockchain but it isn't dated (silly) –  Colonel Panic Sep 28 '13 at 19:53
    
@ColonelPanic that link is broken –  puk Dec 5 '13 at 6:45
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2 Answers

up vote 8 down vote accepted
+50

Please use the bootstrap.dat torrent download. It is more frequently updated, and much safer to use.

You can find the .torrent download at http://sourceforge.net/projects/bitcoin/files/Bitcoin/blockchain/bootstrap.dat.torrent/download

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Could you elaborate on why it's safer? –  Nick ODell Jun 24 '13 at 23:41
    
Because it verifies the blocks on import, instead of trusting someone to give you a pre-validated pre-indexed database. –  Pieter Wuille Jun 25 '13 at 0:11
1  
Ah, I did not realize that the .zip files contained the raw blk*.dat files. Thanks. –  Nick ODell Jun 25 '13 at 0:16
    
My service provider blocks torrent downloads. So this is not a good solution for me. Any other sites? –  Sydwell Jun 29 '13 at 6:56
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Here you go I have recently uploaded the bitcoin blockchain to sourceforge.

Blockchain & Chainstate Date: 29th October 2013

Download Link: https://sourceforge.net/projects/bitcoinblockchain/files/29-10-2013/ Download Size: 9GB (Compressed) - 13GB (Decompressed)

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What do you think about using btsync to keep a up to date bootstrap.dat file labs.bittorrent.com/experiments/sync.html –  Jonas Oestman Oct 31 '13 at 16:39
    
Thank you. When download completes, can I rsync it with my ~/.bitcoin directory or is it like this sourceforge link which is rather tricky to decipher sourceforge.net/projects/bitcoin/files/Bitcoin/blockchain –  puk Dec 5 '13 at 6:50
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