Historian search and summary endpoint

[DevonJames]

Index all tx-comments that include "alexandria-historian-v001"

message schema:

"alexandria-historian-v001:$URL_of_node_or_pool:$mrr.last_10:$pool.hashrate:$fbd.networkhashps:$fmd.weighted:$fmd.usd:$signature"

$signature=$URL_of_node_or_pool:$mrr.last_10:$pool.hashrate:$fbd.networkhashps:$fmd.weighted:$fmd.usd

example tx-comment:

"alexandria-historian-v001:pool.alexandria.io:0.000130513000:358920574.29333335:798504117:0.00000499:0.00216:IKDcfh8URcFR8pdl0fp25f2Jtq7br1HMcdZQfXJ3LwngFW1r6E9+7UMxLjj+pOFqjV39E8iCWLwbyJakRwSZUpY="

Variables

mrr.last_10 = miningrigrentals, last 10 scrypt rentals:
= 0.000130513000 (btc per MH/day)

pool.hashrate = alexandria pool hashrate:
= 358920574.29333335 (hashes per second)

fbd.networkhashps = florincoin blockchain data api, hashrate:
= 798504117 (hashes per second)

fmd.weighted = florincoin market data api, volume weighted avg BTC price:
= 0.00000499 (BTC)

fmd.usd = florincoin market data api, 24-hour average USD price:
= 0.00216 (USD)

Calculations

spot flo cost basis:
flo.spotcost_btc = fbd.networkhashps ÷ 1000000 x mrr.last_10 ÷ (24 x 60 x 3 ÷ 2 x 25) =
798504117 ÷ 1000000 x 0.000130513000 ÷ (24 x 60 x 3 ÷ 2 x 25) =
0.00000192991052 BTC per Flo

flo.spotcost_usd = flo.spotcost_btc x fmd.usd ÷ fmd.weighted =
= 0.00083539278557 USD per Flo

Return the following:

Summary from recent 135 blocks:
fmd.weighted_avg = average of fmd.weighted values from most recent 135 blocks
fmd.usd_avg = average of fmd.usd values from most recent 135 blocks
flo.spotcost_btc_avg = average of flo.spotcost_btc values from most recent 135 blocks
flo.spotvalue_usd_avg = average of flo.spotcost_usd values from most recent 135 blocks
individual entries with the following fields for the most recent 135 blocks:
flo.spotcost_btc
flo.spotcost_usd
fmd.weighted
fmd.usd
URL_of_node_or_pool

Note: it might be a good idea to make the number of blocks an input variable rather than a hard coded 135. or perhaps even better, an "hours" variable that calculates the number of blocks in that period?

[DevonJames]

Also calculate offer_btc and include in summary data
using these calculations: https://docs.google.com/spreadsheets/d/11uyc3HqaDD4_WfNkgSfGWDb3r5__fR6V4W0CuQb5LmE/edit#gid=0

[DevonJames]

Restructure API endpoint from:
https://api.alexandria.io/alexandria/v1/publisher/get/all
to:
https://api.alexandria.io/libraryd/v0/publisher/get/all

[DevonJames]

Include block range fields to limit the summary and search results

[DevonJames]

Add API version number to results