As I wrote http://obelisk.secseq.com and
https://masterchain.info/downloads are actually the same directory,
where on the former the content is served via http and on the latter it
is https.
zsync requires http for operation.

you can try then:
zsync http://obelisk.secseq.com/obelisk_blockchain.tar.zsync
or for testing (ignoring the zsync magic)
wget http://obelisk.secseq.com/obelisk_blockchain.tar

on the site, obelisk_blockchain.tar.zsync is a symbolic link to
obelisk_blockchain_299838.tar.zsync and it will link to the updated file
whenever I take the snapshot again.

To create the zsync file yourself, simply run zsyncmake
obelisk_blockchain.tar

If you want to serve it on your site - take care as you may get hit by
huge amount of traffic :)
Grazcoin


On 2014-05-10 17:32, Amir Taaki wrote:
> when I visit http://obelisk.secseq.com/ I get an nginx error.
>
> On 10/05/14 12:15, grazcoin wrote:
>> Hi guys,
>>
>> As we all know it takes ages to download and validate the blockchain
>> within the obelisk.
>> I am trying to introduce a shortcut for fast deployment. It comes on the
>> expense of trust though.
>>
>> Once a user is done with obelisk compilation, he can download the tar of
>> blockchain directory using:
>> zsync http://obelisk.secseq.com/obelisk_blockchain.tar.zsync
>>
>> remarks:
>> 1. current snapshot was taken at block 299838
>> 2. http://obelisk.secseq.com and https://masterchain.info/downloads are
>> the same directory, only the first serves http which is needed for zsync
>> 3. The zsync will download only the required difference if an older
>> snapshot exists, and will resume broken downloads.
>> 4. signed md5sums at https://masterchain.info/downloads/MD5SUMS.asc
>> 5. I am still not sure that the webserver is properly configured to
>> support zsync the best way, but hopefully it is.
>>
>> My bandwidth at home is too slow to really testing it.
>> Anyone?
>>
>> Grazcoin
>>
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