I am happy to announce that project ppcoin is now close to beta quality and will be released to public soon.
What are we announcing? - First implementation of hybrid proof-of-work/proof-of-stake
- Long term energy non-dependence (meaning if hashrate drops network is still protected)
- Long term energy efficiency (assuming the continuation of Moore's law)
- Proof-of-work mint rate is a function of difficulty (every 16x in difficulty mint rate is halved)
- Proof-of-stake mint rate is less than 1% annually
- Centrally broadcasted checkpoint for transaction settlement and defend against 51% attacks
- No premine
- No tax
- Open source
- Same license term as Bitcoin to help advancing cryptocurrency technology
Schedule - Beta release is tentatively scheduled for Aug 19, 2012. In the first release only command-line client is available (ppcoind). Stay tuned.
HistoryThis effort started in October 2011 after some study and appreciation of Nakamoto's breakthrough work. We independently discovered proof-of-stake and worked on redesigning a significant portion of Nakamoto's protocol. The main goal of ppcoin is to validate that energy efficiency is achievable with cryptocurrency. We hope our work would contribute to the advancement of the revolutionary new field.
Update (2012-08-16):We are busy preparing the final build of the release. Official block chain is tentatively scheduled to start at
SUNDAY 2012-08-19 18:00:00 UTCDisclaimer: This is experimental beta software so play at your own risk. We reserve the right to restart block chain should severe flaws require such actions but we will try our best to avoid such scenario as much as possible.
Release builds will be available for download a few hours before the scheduled block chain start time. Source code and design paper will be available around the same time or earlier.
Thank you for your support!
Update (2012-08-19):Our paper is now published at
http://www.ppcoin.org/.
Release builds have been completed and block chain is on schedule to start at
SUNDAY 2012-08-19 18:00:00 UTCRelease build and source code will be released
5 minutes before block chain start time.
Thank you for your support!
Update:Release build (including source code) is now available at
http://www.ppcoin.org/.
(Sourceforge)