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Author Topic: SourceForge blockchain checksums typo  (Read 951 times)
masterluc (OP)
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October 20, 2013, 09:19:34 PM
 #1

I tryed to download this blockchain snapshot http://sourceforge.net/projects/bitcoin/files/Bitcoin/blockchain/

File bitcoin_blockchain_170000.zip

After unzip I see a listing:
Code:
blk0001.dat
blkindex.dat
README.txt
SHASUMS.asc

SHASUMS.asc contents:
Code:
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

87960e3eaa7136d182d91ea3a6223c25d5810153  blk0001.dat
5e81a938566065f61ae827ecfaef0162fbf82f30  blkindex.dat
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (Darwin)
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=q2Ad
-----END PGP SIGNATURE-----

Signature is correct and checksums okay, but they are SHA1 sums, not SHA512 like it written in file (Hash: SHA512)
sha512:
Code:
[bt@mail bitcoin_blockchain_170000]$ sha512sum blk0001.dat 
1a2fe85e3f7d4e2e566aa73daee54e8a7bda657237ca477193f024136fe7311273f862f539dee2cce3650d35dcd732a8a9b6d98d1b3e22bda43b9b310e0b151b  blk0001.dat
[bt@mail bitcoin_blockchain_170000]$ sha512sum blkindex.dat
91697d7b22ff4fd0470c021c1b68c3040cdac49d47bf3c47dfdb10f1fc60dd41f44fa74b9e65ab81a8da61ee8b8ffd99dd0fa6c73a43a3f215e59633cc83b8ce  blkindex.dat

sha1:
Code:
[bt@mail bitcoin_blockchain_170000]$ sha1sum blkindex.dat 
5e81a938566065f61ae827ecfaef0162fbf82f30  blkindex.dat
[bt@mail bitcoin_blockchain_170000]$ sha1sum blk0001.dat
87960e3eaa7136d182d91ea3a6223c25d5810153  blk0001.dat

gmaxwell
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October 20, 2013, 09:24:53 PM
 #2

Signature is correct and checksums okay, but they are SHA1 sums, not SHA512 like it written in file (Hash: SHA512)
That "Hash:" line is part of the pgp signature. The file is called SHASUMS and not SHA256SUMS because it's sha1.

(Incidentally, those files are old and are likely only of historical interest)
masterluc (OP)
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October 20, 2013, 09:25:50 PM
 #3

ah, okay

masterluc (OP)
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October 20, 2013, 09:27:42 PM
 #4

besides, I didnt find 250000 snapshot. Is there any?

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October 20, 2013, 09:35:09 PM
 #5

https://bitcointalk.org/index.php?topic=145386.0
masterluc (OP)
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October 20, 2013, 10:08:14 PM
 #6

Thanks alot. Downloading that chain. Devs really should consider on partial sharing chain in vanilla client. Yesterday I got not enough disk space in bitcoin partition =)

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