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BTC Whaling

MobyDick.jpg

This is a simple project that extract the biggest account in the blockchain and tries to find the private key.

Disclaimer: This is a project for fun and learning. Even with the biggest compute power, you won't be close to finding a key. That being said, there is still a chance.

There_is_a_chance.gif

Dependencies

You need to have an Unspend Transaction Database (chainstate folder of bitcoind). Because of the size of such a database, it cannot be included in the project. To create one, simple run bitcoind and wait until the blockchain is complete.

The project uses two binaries to extract and crack the keys.

Optionnaly, pv is recommended to display progression.

Each dependencies can be manually located using their respective environment variables:

  • BITCOIN_UTXO_DUMP (or GO)
  • VANITYSEARCH

Usage

This project uses a Makefile to issue command. If all requirements are met, a simple make run should be enough.

Use make help to see available commands.

Notice: Some steps will check the requirements before proceeding, so you can safely try any target.

First run will take some times as it create the initial files, but next runs will start immediatly.

By default, the project will work in the current folder and create files named utxodump.*. You can override this by renaming environment variables FILE_PREFIX. To rename a specific file, have a look at available variables in the head of the Makefile.

Default Satoshis minimal amount is 1000000. You can also configure that with an environment variable named MIN_SATOSHIS.

Examples

$ UTXO_DIR=bitcoind/chainstate
> MIN_SATOSHIS=9999999
> FILE_PREFIX=demo
> BITCOIN_UTXO_DUMP=../bitcoin-utxo-dump
> VANITYSEARCH=../VanitySearch.exe
> make run
[...]
66500000 utxos processed

Total UTXOs: 66558899
Total BTC:   18461444.35820543
2.55GiB 0:03:43 [11.7MiB/s] [=======================================================================>] 100%
 529MiB 0:00:35 [14.9MiB/s] [=======================================================================>] 100%
 529MiB 0:03:01 [2.91MiB/s] [=======================================================================>] 100%
 502MiB 0:02:21 [3.54MiB/s] [=======================================================================>] 100%
[Loading input file 100.0%]
VanitySearch v1.19
[Building lookup16 100.0%]
[Building lookup32 100.0%]
Search: 7246411 addresses (Lookup size 65536,[43,12550]) [Compressed]
Start Fri Aug 21 14:16:14 2020
Base Key: 719E1E8147DBABBED26CC564E715212AE52029EDC5ACB8DE36B2F79AF16A5B04
Number of CPU thread: 11
GPU: GPU #0 GeForce GTX 2080 (40x128 cores) Grid(320x128)

[189.80 Mkey/s][GPU 336.11 Mkey/s][Total 2^37.45][Prob 0.0%][50% in 2.29772e+32y][Found 0]