View source for GenesisH0 Creating Genesis Hash

{{:LICENCE_HEADER_APACHE2}}

* Append same license to page containing script

* https://github.com/lhartikk/GenesisH0
** [[GenesisH0_Python_Script| The Script is under the Apache Version 2 License]]

* Due to the age of the script, the best way i found to get it working was in a LXC container with python2.5 and some depends installed, this way your main system remains clean.

==Create container==

<code>lxc launch ubuntu:24.04 pygen</code>

<code>lxc exec pygen bash</code>

<code>su - ubuntu</code>

===Install Python 2.5 ===
<code>sudo apt update && sudo apt upgrade -y</code>

<code>sudo apt install build-essential zlib1g-dev libssl-dev</code>

<code>wget http://www.python.org/ftp/python/2.5.2/Python-2.5.2.tgz</code>
* sha256sum Python-2.5.2.tgz <code>834afe8a88adaf623b05ac5dd6700dd5bb5d0d5553fc74ad529359a3496e4ae3</code>

<code>tar -zxvf Python-2.5.2.tgz</code>

<code>cd Python-2.5.2</code>

<code>./configure --with-zlib=/usr/include</code>

* After running the ./configure command a file called 'Setup' will appear in the 'Python-2.5.2/Modules' Directory.

<code>$EDITOR Modules/Setup</code>

* Uncomment the line 454 and save and exit the file.
<pre>
451 # Andrew Kuchling's zlib module.
452 # This require zlib 1.1.3 (or later).
453 # See http://www.gzip.org/zlib/
454 #zlib zlibmodule.c -I$(prefix)/include -L$(exec_prefix)/lib -lz 
</pre>


<code>make</code>

<code>sudo make install</code>

* python2.5 shold now be installed in /usr/local/bin/python2.5

* This is clean ubuntu 24.04 container with no python2 installed so going to link name to just python2 with symlink
<code>sudo ln -s /usr/local/bin/python2.5 /usr/local/bin/python2</code>

* If you skip this step it just means you will use <code>sudo python2.5 setup.py install</code> instead of <code>sudo python2 setup.py install</code>

===Install setuptools for easy_install===

* archive pip - https://pypi.org/project/setuptools/#history

<code>wget https://files.pythonhosted.org/packages/8b/62/baf1e2c2b02de7898dcacd1d1a41e323b79d25be5c88d2805c89fb424835/setuptools-0.6c11.tar.gz</code>
* sha256sum setuptools-0.6c11.tar.gz <code>630fea9b726320b73ee3ca6ff61732cb32675b0389be658080fe46383b87a1d3</code>

<code>tar -xvzf setuptools-0.6c11.tar.gz</code>

<code>cd setuptools-0.6c11</code>

<code>sudo python2 setup.py install</code>

===Install six 1.6.1===
* This package is required by construct 2.5.2
<code>wget https://files.pythonhosted.org/packages/e8/70/b9c441d8c02b70eb3bf923c49944b8fc656f78a43c084d2a98534d7404e2/six-1.6.1.tar.gz</code>
* sha256sum six-1.6.1.tar.gz <code>d4392a7c8d91b005c002568a85faf617c67241c8cd8399cc395e8f1005aff80d</code>

<code>sudo easy_install six-1.6.1.tar.gz</code>
<div class="toccolours mw-collapsible mw-collapsed">
If you did NOT install easy_install and would like to do manually:
<div class="mw-collapsible-content">
Its pretty easy, same way you installed setuptools and will be the same method to install the other packages as well.
* extract file with tar
<code>tar -zxvf six-1.6.1.tar.gz</code>
* enter directory
<code>cd six-1.6.1</code>
* and install with python
<code>sudo python2 setup.py install</code>
</div>
</div>

===Install construct 2.5.2===

<code>wget https://files.pythonhosted.org/packages/fd/5a/e3105c79b3b0bbf7a80dc8218d7416df6551f9f2fe389c9ce6690a621c00/construct-2.5.2.tar.gz</code>
* sha256sum construct-2.5.2.tar.gz <code>665b6271eeadf15219c726b180c8d7a641d026784d72ca3dad90a20aae009020</code>
<code>sudo easy_install construct-2.5.2.tar.gz</code>

<div class="toccolours mw-collapsible mw-collapsed">
Output from command: <code>sudo easy_install construct-2.5.2.tar.gz</code>
<div class="mw-collapsible-content">

* This happened on mine, but script and keys worked fine, so no worries be mateys

<pre>
ubuntu@pygen:~$ sudo easy_install construct-2.5.2.tar.gz

Processing construct-2.5.2.tar.gz
Running construct-2.5.2/setup.py -q bdist_egg --dist-dir /tmp/easy_install-GXHk0j/construct-2.5.2/egg-dist-tmp-JXx8gl
build/bdist.linux-x86_64/egg/construct/formats/filesystem/fat16.py:215: Warning: 'with' will become a reserved keyword in Python 2.6
  File "build/bdist.linux-x86_64/egg/construct/formats/filesystem/fat16.py", line 215
    with BytesIO() as mem:
               ^
SyntaxError: invalid syntax

zip_safe flag not set; analyzing archive contents...
construct.debug: module MAY be using inspect.stack
/usr/local/lib/python2.5/site-packages/construct-2.5.2-py2.5.egg/construct/formats/filesystem/fat16.py:215: Warning: 'with' will become a reserved keyword in Python 2.6
  File "/usr/local/lib/python2.5/site-packages/construct-2.5.2-py2.5.egg/construct/formats/filesystem/fat16.py", line 215
    with BytesIO() as mem:
               ^
SyntaxError: invalid syntax

Adding construct 2.5.2 to easy-install.pth file

Installed /usr/local/lib/python2.5/site-packages/construct-2.5.2-py2.5.egg
Processing dependencies for construct==2.5.2
Finished processing dependencies for construct==2.5.2

</pre>

</div>
</div>

===Install scrypt-0.6.1===
* required by GenesisH0
<code>wget https://pypi.python.org/packages/source/s/scrypt/scrypt-0.6.1.tar.gz</code>
* sha256sum scrypt-0.6.1.tar.gz <code>6142bb9f786649bd2a51f47e61dff91bf8315fd8989188003c3c61c05834a07b</code>
<code>sudo easy_install scrypt-0.6.1.tar.gz</code>

<div class="toccolours mw-collapsible mw-collapsed">
Install output:
<div class="mw-collapsible-content">

<pre>

ubuntu@pygen:~$ sudo easy_install scrypt-0.6.1.tar.gz 
Processing scrypt-0.6.1.tar.gz
Running scrypt-0.6.1/setup.py -q bdist_egg --dist-dir /tmp/easy_install-QSGJ2P/scrypt-0.6.1/egg-dist-tmp-DG_d1K
scrypt-1.1.6/lib/crypto/crypto_aesctr.c: In function ‘crypto_aesctr_stream’:
scrypt-1.1.6/lib/crypto/crypto_aesctr.c:97:25: warning: ‘AES_encrypt’ is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
   97 |                         AES_encrypt(pblk, stream->buf, stream->key);
      |                         ^~~~~~~~~~~
In file included from scrypt-1.1.6/lib/crypto/crypto_aesctr.c:34:
/usr/include/openssl/aes.h:57:6: note: declared here
   57 | void AES_encrypt(const unsigned char *in, unsigned char *out,
      |      ^~~~~~~~~~~
scrypt-1.1.6/lib/scryptenc/scryptenc.c: In function ‘scryptenc_buf’:
scrypt-1.1.6/lib/scryptenc/scryptenc.c:365:9: warning: ‘AES_set_encrypt_key’ is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
  365 |         if (AES_set_encrypt_key(key_enc, 256, &key_enc_exp))
      |         ^~
In file included from scrypt-1.1.6/lib/scryptenc/scryptenc.c:38:
/usr/include/openssl/aes.h:51:5: note: declared here
   51 | int AES_set_encrypt_key(const unsigned char *userKey, const int bits,
      |     ^~~~~~~~~~~~~~~~~~~
scrypt-1.1.6/lib/scryptenc/scryptenc.c: In function ‘scryptdec_buf’:
scrypt-1.1.6/lib/scryptenc/scryptenc.c:428:9: warning: ‘AES_set_encrypt_key’ is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
  428 |         if (AES_set_encrypt_key(key_enc, 256, &key_enc_exp))
      |         ^~
/usr/include/openssl/aes.h:51:5: note: declared here
   51 | int AES_set_encrypt_key(const unsigned char *userKey, const int bits,
      |     ^~~~~~~~~~~~~~~~~~~
scrypt-1.1.6/lib/scryptenc/scryptenc.c: In function ‘scryptenc_file’:
scrypt-1.1.6/lib/scryptenc/scryptenc.c:489:9: warning: ‘AES_set_encrypt_key’ is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
  489 |         if (AES_set_encrypt_key(key_enc, 256, &key_enc_exp))
      |         ^~
/usr/include/openssl/aes.h:51:5: note: declared here
   51 | int AES_set_encrypt_key(const unsigned char *userKey, const int bits,
      |     ^~~~~~~~~~~~~~~~~~~
scrypt-1.1.6/lib/scryptenc/scryptenc.c: In function ‘scryptdec_file’:
scrypt-1.1.6/lib/scryptenc/scryptenc.c:587:9: warning: ‘AES_set_encrypt_key’ is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
  587 |         if (AES_set_encrypt_key(key_enc, 256, &key_enc_exp))
      |         ^~
/usr/include/openssl/aes.h:51:5: note: declared here
   51 | int AES_set_encrypt_key(const unsigned char *userKey, const int bits,
      |     ^~~~~~~~~~~~~~~~~~~
zip_safe flag not set; analyzing archive contents...
Adding scrypt 0.6.1 to easy-install.pth file

Installed /usr/local/lib/python2.5/site-packages/scrypt-0.6.1-py2.5-linux-x86_64.egg
Processing dependencies for scrypt==0.6.1
Finished processing dependencies for scrypt==0.6.1

</pre>

</div>
</div>

* After just installing with <code>easy_install</code> i had an error with:
<pre>
Traceback (most recent call last):
  File "genesis.py", line 2, in <module>
    import scrypt
  File "build/bdist.linux-x86_64/egg/scrypt.py", line 11, in <module>
ImportError: No module named _scrypt
</pre>

Tried installing the manual way and it worked on second try!
<div class="toccolours mw-collapsible mw-collapsed">
The manual way to install scrypt:
<div class="mw-collapsible-content">

<code>tar xvf scrypt-0.6.1.tar.gz</code>

<code>cd scrypt-0.6.1/</code>

<code>sudo python2 setup.py install</code>

</div>
</div>

===Install the GenesisH0 script and run===

<code>git clone https://github.com/lhartikk/GenesisH0.git</code>
* sha256sum GenesisH0/genesis.py <code>7120909579283fd715ae3167b456fe3e23cbd9c280b1a2e2ce89b47830bf96f4</code>

<code>cd GenesisH0</code>

===Run GenesisH0===

<pre>
Usage: genesis.py [options]

Options:
  -h, --help show this help message and exit
  -t TIME, --time=TIME  the (unix) time when the genesisblock is created
  -z TIMESTAMP, --timestamp=TIMESTAMP
     the pszTimestamp found in the coinbase of the genesisblock
  -n NONCE, --nonce=NONCE
     the first value of the nonce that will be incremented
     when searching the genesis hash
  -a ALGORITHM, --algorithm=ALGORITHM
     the PoW algorithm: [SHA256|scrypt|X11|X13|X15]
  -p PUBKEY, --pubkey=PUBKEY
     the pubkey found in the output script
  -v VALUE, --value=VALUE
     the value in coins for the output, full value (exp. in bitcoin 5000000000 - To get other coins value: Block Value * 100000000)
  -b BITS, --bits=BITS
     the target in compact representation, associated to a difficulty of 1
</pre>

=====Test =====

* Lets recreate the Litecoin Genesis Hash and Merkel Hash (its way quicker than bitcoin)
<code>python2.5 genesis.py -a scrypt -z "NY Times 05/Oct/2011 Steve Jobs, Apple’s Visionary, Dies at 56" -p "040184710fa689ad5023690c80f3a49c8f13f8d45b8c857fbcbc8bc4a8e4d3eb4b10f4d4604fa08dce601aaf0f470216fe1b51850b4acf21b179c45070ac7b03a9" -t 1317972665 -n 2084524493</code>
* Check your '''Nonce'''number ,'''Merkel''' and '''Genesis''' hash with litecoins:
*https://github.com/litecoin-project/litecoin/blob/master/src/chainparams.cpp
** Nonce: Line 116
** hashGenesisBlock Line 118
** hashMerkelRoot Line 119

====MainNet====

* This is for N33Bcoin sha256 

<code>python2 genesis.py -a SHA256 -z "N33B's for Noob's at CompleteNoobs.com" -t 1733333333 -b 0x1d00ffff -p 041e82b1b4f244d71815b5919ef91e20c44928031230bd4442ce38bf597ab92abab2a2f9542463cd515b5cd3ea0e215258fa28f36a8c968926beb6ae6e9ea41ea4 -v 33300000000</code>

* This can take a while

<pre>
ubuntu@pygen:~/GenesisH0$ python2 genesis.py -a SHA256 -z "N33B's for Noob's at CompleteNoobs.com" -t 1733333333 -b 0x1d00ffff -p 041e82b1b4f244d71815b5919ef91e20c44928031230bd4442ce38bf597ab92abab2a2f9542463cd515b5cd3ea0e215258fa28f36a8c968926beb6ae6e9ea41ea4 -v 33300000000
04ffff001d0104264e333342277320666f72204e6f6f62277320617420436f6d706c6574654e6f6f62732e636f6d
algorithm: SHA256
merkle hash: 6cc697f6a9806aee97a71c01c41e9084c0b38c2042b2a3eef741e1ae47586f89
pszTimestamp: N33B's for Noob's at CompleteNoobs.com
pubkey: 041e82b1b4f244d71815b5919ef91e20c44928031230bd4442ce38bf597ab92abab2a2f9542463cd515b5cd3ea0e215258fa28f36a8c968926beb6ae6e9ea41ea4
time: 1733333333
bits: 0x1d00ffff
Searching for genesis hash..
298871.0 hash/s, estimate: 4.0 hgenesis hash found!
nonce: 3926490992
genesis hash: 000000003af8bb03eaa894f998df439eba70ff19c25705fc695bff6553252ae6
</pre>

As you can see we have the details we need for chainpararms.cpp:
* '''nonce''': <code>3926490992</code>
* '''merkle hash''': <code>6cc697f6a9806aee97a71c01c41e9084c0b38c2042b2a3eef741e1ae47586f89</code>
* '''genesis hash''': <code>000000003af8bb03eaa894f998df439eba70ff19c25705fc695bff6553252ae6</code>

====TestNet====

* nBits <code>-b 0x1e0ffff0</code> has been made less difficult.
* TimeStamp <code>-t 1733333334</code> has been changed so i know which one is main - test - reg, nets later on. There is no requirement to change unixtimestamp for each one.

<code>python2.5 genesis.py -a SHA256 -z "N33B's for Noob's at CompleteNoobs.com" -t 1733333334 -b 0x1e0ffff0 -p 041e82b1b4f244d71815b5919ef91e20c44928031230bd4442ce38bf597ab92abab2a2f9542463cd515b5cd3ea0e215258fa28f36a8c968926beb6ae6e9ea41ea4 -v 33300000000</code>
<pre>
ubuntu@pygen:~/GenesisH0$ python2.5 genesis.py -a SHA256 -z "N33B's for Noob's at CompleteNoobs.com" -t 1733333334 -b 0x1e0ffff0 -p 041e82b1b4f244d71815b5919ef91e20c44928031230bd4442ce38bf597ab92abab2a2f9542463cd515b5cd3ea0e215258fa28f36a8c968926beb6ae6e9ea41ea4 -v 33300000000

04ffff001d0104264e333342277320666f72204e6f6f62277320617420436f6d706c6574654e6f6f62732e636f6d
algorithm: SHA256
merkle hash: 6cc697f6a9806aee97a71c01c41e9084c0b38c2042b2a3eef741e1ae47586f89
pszTimestamp: N33B's for Noob's at CompleteNoobs.com
pubkey: 041e82b1b4f244d71815b5919ef91e20c44928031230bd4442ce38bf597ab92abab2a2f9542463cd515b5cd3ea0e215258fa28f36a8c968926beb6ae6e9ea41ea4
time: 1733333334
bits: 0x1e0ffff0
Searching for genesis hash..
genesis hash found!
nonce: 105904
genesis hash: 00000d490951764bb9dc0b882e69bd908781f208267c61c330bc88f825ec87d9
</pre>

====RegNet====
* <code>-b 0x207fffff</code> '''difficultly''' has been changed.
* <code>-t 1733333335</code> '''Time Stamp''' has been changed.

<code>python2.5 genesis.py -a SHA256 -z "N33B's for Noob's at CompleteNoobs.com" -t 1733333335 -b 0x207fffff -p 041e82b1b4f244d71815b5919ef91e20c44928031230bd4442ce38bf597ab92abab2a2f9542463cd515b5cd3ea0e215258fa28f36a8c968926beb6ae6e9ea41ea4 -v 33300000000</code>

<pre>
ubuntu@pygen:~/GenesisH0$ python2.5 genesis.py -a SHA256 -z "N33B's for Noob's at CompleteNoobs.com" -t 1733333335 -b 0x207fffff -p 041e82b1b4f244d71815b5919ef91e20c44928031230bd4442ce38bf597ab92abab2a2f9542463cd515b5cd3ea0e215258fa28f36a8c968926beb6ae6e9ea41ea4 -v 33300000000

04ffff001d0104264e333342277320666f72204e6f6f62277320617420436f6d706c6574654e6f6f62732e636f6d
algorithm: SHA256
merkle hash: 6cc697f6a9806aee97a71c01c41e9084c0b38c2042b2a3eef741e1ae47586f89
pszTimestamp: N33B's for Noob's at CompleteNoobs.com
pubkey: 041e82b1b4f244d71815b5919ef91e20c44928031230bd4442ce38bf597ab92abab2a2f9542463cd515b5cd3ea0e215258fa28f36a8c968926beb6ae6e9ea41ea4
time: 1733333335
bits: 0x207fffff
Searching for genesis hash..
genesis hash found!
nonce: 0
genesis hash: 3b8c1255a0fb1f5db478fec6b585fc2a5c1dcdc429e9a05d7e246c97e80a7c35
</pre>

===Litecoin - scrypt===

* Could not get working litecoin keys? will look into later.
<code>python2.5 genesis.py -a scrypt -z "N3WB's for Noob's at CompleteNoobs.com" -t 1733333333 -b 0x1e0ffff0 -p 049bd17782313a0263154a37b7adb5f773e3a95e08eba879d6a8f1c9e614e41b33f85129d0f9820a464d2ae136abaa4144d258df6729dfd7c6a18498148b59fadf -v 33300000000</code>