JoBangelz / bitcoin-blockchain-data

R function to download bitcoin blockchain data from various APIs

This R script downloads and flattens blockchain variable data from various APIs into a data.table and a .csv file.

Requirements

Tested:
OSX 10.9.5 with R 3.1.1 and RStudio 0.99.902
Windows 7 SP1 with R 3.1.0 and RStudio 0.98.1062. On Windows, you may need to add the following at the start of the bitcoin-blockchain-data.R script:

setInternet2()

API functions available for:

• Blockchain.info
• Blocktrail.com
• Kaiko.com

Before running script:

Make sure you enter your working directory at

setwd("/your/path/here")

and preferred R repo in

R_repo <- "http://your/R/repo/"

• The output table will contain fields which depend on the API chosen.
• All integers are 64 bit (using the bit64 library) in case you want to operate on the data before saving it.
• Consider using the data.table library (as in the example) if you’re operating on a significant portion of blockchain history.

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Blockchain.info tables will contain:

"time" (unixtime,UTC),"height", "hash", "ver", "fee", "n_tx", "size", "script_hex", "tx_hash", "generationAddress", "addr_tag_link", "addr_tag","API"

An example of the output is here: blockchain.info_data.csv

Use Sys.sleep() command if you need to slow down your request due to the request limiter, currently set to:

• Requests in 8 Hours: 3 (Soft Limit = 30000, Hard Limit = 30500)
• Requests in 5 minutes: 3 (Soft Limit = 500, Hard Limit = 525)

Check https://blockchain.info/api for up-to-date info, and https://blockchain.info/api/api_create_code if you want to avoid the request limiter altogether.

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Blocktrail.com tables will contain:

"height","hash","block_time","difficulty","is_orphan","byte_size","transactions","value","miningpool_name","miningpool_url","miningpool_slug","total_input_value","total_output_value","total_fee","script_signature","generationAddress","API"

An example of the output is here: blocktrail.com_411300_411350_data.csv

Check https://www.blocktrail.com/api/docs#api_block for more information.

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Kaiko.com tables will contain:

"hash", "fees", "value", "bits", "difficulty", "reward", "transactions_count", "size", "height", "timestamp (UTC)“, ”version", "total_out", "tx_hash", "generationAddress", "script_hex", "API"

An example of the output is here: api.kaiko.com_411300_411350_data.csv

Check http://docs.kaiko.com/ for more information.

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Let me know if you want other APIs added