How to get raw block data?

Question

I can use getblock json rpc method to get parsed block details, however I need the actual raw data.

Is there any way to get raw block data using Bitcoin Core?

So to implement such method as getrawblock I need to create my own index with filename and offset for each block, right? — Andrey Lobarev, Commented Sep 23, 2017 at 18:02
In principle you can use the existing leveldb database in the blocks/index directory to locate the block data within the blk*.dat file by its hash. See en.bitcoin.it/wiki/Bitcoin_Core_0.11_(ch_2):_Data_Storage or bitcoin.stackexchange.com/questions/28168/… for the data format. — Nate Eldredge, Commented Sep 24, 2017 at 2:26

alcio · Accepted Answer · 2017-09-27 07:25:02Z

9

There's a boolean parameter to that RPC call that'll return it as a hex string representing the binary contents of the block.

If verbosity is 0, returns a string that is serialized, hex-encoded data for block 'hash'

getblock 'hash' 0 should return what you want.

answered Sep 27, 2017 at 7:25

alcio

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