I would like to have a time series of hashing power deployed in a given time to the bitcoin blockchain.gomething like blockchain.info has, but with a custom granularity (they only offer per-day value, I'd like a per minute one).
Problem is I know what hash power is (at least I think so) and I could estimate mine one, had I a running miner client. But I do not know where to retrieve or derive the information about the global one, which is I think the sum of all trials made before a block is mined divided by the time elapsed for the magic number to be found.
I'd think this information is not available anywhere, but blockchain.info seems to have it..so how?
Thanks in advance, and sorry if I am terribly wrong at some point