README.md

Blockchain Parser

Experimental sandbox for blockchain parsing / analytics. Early stage work in progress.

Sample output (minor manual formatting applied)

{/Users/Chris/Library/Application Support/Bitcoin/blocks/blk00000.dat open}
{/Users/Chris/Library/Application Support/Bitcoin/blocks/blk00000.dat closed}
{/Users/Chris/Library/Application Support/Bitcoin/blocks/blk00001.dat open}
{/Users/Chris/Library/Application Support/Bitcoin/blocks/blk00001.dat closed}
...
{/Users/Chris/Library/Application Support/Bitcoin/blocks/blk00465.dat open}
{/Users/Chris/Library/Application Support/Bitcoin/blocks/blk00465.dat closed}

Blocks processed: 402086
Blocks in main chain: 402086

ChainStats
{ chainstatsNumBlocks = 402086
, chainstatsNumTxns = 115145839
, chainstatsMeanTxnsPerBlock = 286.37117183886033
, chainstatsMinTxnsPerBlock = Just 0
, chainstatsMaxTxnsPerBlock = Just 12238
}

To do

• Calc duration of analysis
• Data structures - try hashmap, vector, etc.
• Add stats requiring deeper interrogation of txns to check performance
• Derive longest chain based on difficulty rather than depth
• Command line parameters
• Bundle a set of standard analyses
• Charts
• Factor out binary decoder pipe into a dedicated library
• Rename PipesExtras
• Transform and persist to a queryable data store
• Add references to blockchain data format / parsing articles and related repos

References/sources:

• BitD
• Haskoin