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birth of smallchange, a litecoin fork

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Bernhard Froemel
Bernhard Froemel committed Apr 21, 2013
1 parent 3aaa7ba commit 947a0fafd8d033f6f0960c4ff0748f76a3d58326
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@@ -1,7 +1,6 @@
src/*.exe
src/litecoin

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src/litecoind
src/test_litecoin
src/smallchange
src/test_smallchange
src/build.h
.*.swp
*.*~*
@@ -14,7 +13,7 @@ src/build.h
#compilation and Qt preprocessor part
*.qm
Makefile
litecoin-qt
smallchange-qt
#resources cpp
qrc_*.cpp
#qt creator
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10 INSTALL
@@ -1,9 +1,9 @@
Building Litecoin
Building SmallChange
See doc/readme-qt.rst for instructions on building Litecoin-QT,
See doc/readme-qt.rst for instructions on building smallchange-qt,
the intended-for-end-users, nice-graphical-interface, reference
implementation of Litecoin.
implementation of SmallChange.
See doc/build-*.txt for instructions on building litecoind,
See doc/build-*.txt for instructions on building smallchange,
the intended-for-services, no-graphical-interface, reference
implementation of Litecoin.
implementation of SmallChange.
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@@ -1,38 +1,51 @@
Litecoin - a lite version of Bitcoin optimized for CPU mining using scrypt as a proof of work scheme.
- 2.5 minute block targets
- subsidy halves in 840k blocks (~4 years)
- ~84 million total coins
The rest is the same as bitcoin.
- 50 coins per block
- 2016 blocks to retarget difficulty
Development process
===================
Developers work in their own trees, then submit pull requests when
they think their feature or bug fix is ready.
The patch will be accepted if there is broad consensus that it is a
good thing. Developers should expect to rework and resubmit patches
if they don't match the project's coding conventions (see coding.txt)
or are controversial.
The master branch is regularly built and tested, but is not guaranteed
to be completely stable. Tags are regularly created to indicate new
official, stable release versions of Litecoin.
Feature branches are created when there are major new features being
worked on by several people.
From time to time a pull request will become outdated. If this occurs, and
the pull is no longer automatically mergeable; a comment on the pull will
be used to issue a warning of closure. The pull will be closed 15 days
after the warning if action is not taken by the author. Pull requests closed
in this manner will have their corresponding issue labeled 'stagnant'.
Issues with no commits will be given a similar warning, and closed after
15 days from their last activity. Issues closed in this manner will be
labeled 'stale'.
Check out http://forum.litecoin.net/index.php/board,2.0.html for more info about the development.
SmallChange (SMC) - a 'faster' version of Litecoin which also uses scrypt
as a proof of work scheme and is intended for microtransactions.
- 15 seconds block targets: beat that MinCoin! ;)
- 420 699 680 total coins
- no subsidy within the first 3 days and after approximately 5 years;
in between: 4 coins per generated block
- difficulty retargets every 0.35 days
- currently peers are looked up over IRC only
- currently no block checkpoints are in the code (but could be easily
added)
Other than that, this coin is exactly like Litecoin and should by no
means be used as a real cryptocurrency. All of the coin parameters
are chosen arbitrarily or at most with 'fairness' towards everyone in mind.
So actually, this 'new' coin exists for the following reasons:
- SMC proves that really anyone(!) can start a Litecoin/Bitcoin based currency
(just look at the changes I applied to the original Litecoin source,
for genesis block generation look at main.cpp)
- allows me to experiment with coin parameters (in a private network)
Finally, I only tested the command line server/tool 'smallchange' for the
first 30 blocks. Credits go to the original authors/communities that
created Bitcoin and Litecoin.
Development process
===================
Developers work in their own trees, then submit pull requests when
they think their feature or bug fix is ready.
The patch will be accepted if there is broad consensus that it is a
good thing. Developers should expect to rework and resubmit patches
if they don't match the project's coding conventions (see coding.txt)
or are controversial.
The master branch is regularly built and tested, but is not guaranteed
to be completely stable. Tags are regularly created to indicate new
official, stable release versions of Litecoin.
Feature branches are created when there are major new features being
worked on by several people.
From time to time a pull request will become outdated. If this occurs, and
the pull is no longer automatically mergeable; a comment on the pull will
be used to issue a warning of closure. The pull will be closed 15 days
after the warning if action is not taken by the author. Pull requests closed
in this manner will have their corresponding issue labeled 'stagnant'.
Issues with no commits will be given a similar warning, and closed after
15 days from their last activity. Issues closed in this manner will be
labeled 'stale'.
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@@ -1,7 +1,8 @@
Litecoin 0.6 BETA
SmallChange 0.1 ALPHA
Copyright (c) 2009-2012 Bitcoin Developers
Copyright (c) 2011-2012 Litecoin Developers
Distributed under the MIT/X11 software license, see the accompanying
file COPYING or http://www.opensource.org/licenses/mit-license.php.
This product includes software developed by the OpenSSL Project for use in
@@ -11,22 +12,22 @@ cryptographic software written by Eric Young (eay@cryptsoft.com).
Intro
-----
Litecoin is a free open source peer-to-peer electronic cash system that is
SmallChange is a free open source peer-to-peer electronic cash system that is
completely decentralized, without the need for a central server or trusted
parties. Users hold the crypto keys to their own money and transact directly
with each other, with the help of a P2P network to check for double-spending.
Setup
-----
You need the Qt4 run-time libraries to run Litecoin-Qt. On Debian or Ubuntu:
You need the Qt4 run-time libraries to run smallchange-qt. On Debian or Ubuntu:
sudo apt-get install libqtgui4
Unpack the files into a directory and run:
bin/32/litecoin-qt (GUI, 32-bit)
bin/32/litecoind (headless, 32-bit)
bin/64/litecoin-qt (GUI, 64-bit)
bin/64/litecoind (headless, 64-bit)
bin/32/smallchange-qt (GUI, 32-bit)
bin/32/smallchange (headless, 32-bit)
bin/64/smallchange-qt (GUI, 64-bit)
bin/64/smallchange (headless, 64-bit)
See the documentation at the bitcoin wiki:
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