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Home Page: https://peercoin.net
License: MIT License
Reference implementation of the Peercoin protocol.
Home Page: https://peercoin.net
License: MIT License
The Sourceforge link is down and I couldn't build on windows, where else is a safe place to download the PPcoin-qt binaries?
Error is probably here (in listunspent function):
pwalletMain->AvailableCoins(vecOutputs, false);
Second parameter is passed as a time limit, which removes any transactions older than timestamp 0.
Seems like we need to rename the repo from ppcoin/ppcoin to peercoin/peercoin. All the other coins seem to use the full name, and I think it would look at little better for branding purposes.
What differentiates Peercoin from Bitcoin is also its block structure. Peercoin adds a few new elements to the block structure such as transaction time and block signature. The signature is found at the end of each block after the transaction elements, and has a variable length:
v_chBlockSigSize; // Variable length integer block signature - signed by coin base txout[0]'s owner
m_chBlockSig; // Raw byte code data for the block signature
These two elements have a big impact on the block parsing processing optimization, especially if someone wants to dump the Blockchain without processing transactions (only the block header and signature). In Bitcoin the block size is described in the block header, and since the transaction elements (of variable size) are found at the end of each block, it allows the parser to calculate where the transaction fields end and jump to the next block without processing transactions. Regarding Peercoin, there is both: transaction elements and block signature. These two are of variable size, and it is thus not possible to know at which position the transaction description ends. By consequence, if someone wants to dump blocks without processing transactions he can't because transactions have to be processed in order to know where the v_chBlockSigSize is located...
An appropriate solution would either be to add an element to the block header to provide the transaction elements size or signature size. Or to move the signature elements above the transaction elements, just after the header (because v_chBlockSigSize would be directly accessible from the header).
$ make clean -f makefile.unix
There are no unit tests for peercoin, or rather it takes the tests form Bitcoin without adjusting them at all. Wouldn't it be a good idea to create unit tests for peercoin?
latest version;
From https://github.com/ppcoin/ppcoin
68c2577..290825c master -> origin/master
ppcoin/src/obj -DUSE_UPNP=0 -DHAVE_BUILD_INFO -fno-stack-protector -fstack-protector-all -Wstack-protector -Wl,-z,relro -Wl,-z,now -D_FORTIFY_SOURCE=2 -O2 -MMD -o obj/main.o main.cpp
main.cpp:2287:9: warning: this decimal constant is unsigned only in ISO C90
I get a warning on the qt-wallet:
"Warning Checkpoint is too old. Wait for blockchain to download or inform the developers"
Compiled on Ubuntu today 27th September 2015. I am sure it is nothing but it is not a good introduction to the wonders of PPC (I have not waited for the blockchain to download).
Would be very helpful to have
as in the title. when
building latest release on ubuntu 14.04 desktop i have the same problem as listed here
adding psmisc to packages fixed it.
I have downloaded the source and run qmake to generate the Makefiles. When then run make, the only executable created is "ppcoin-qt". How can I compile ppcoind executable (ie: the standalone daemon)?
There are two issues when building ppcoind on OS/X 10.9.
Made a pull request with fixes.
In rpc console the estimated total blocks displays as 99999 not the current network height of blockchain.
Eventually if i have some time I may do a pr with a fix.
Is it ok to mine with the develop branch?
Hi!
I just received on the pool (peercoin.econing.com) a strange error never happens again:
It 's an error when rpc does some calls (getblock, listsinceblock, listaccounts)
Error: {"code":-2,"message":"Safe mode: WARNING: Invalid checkpoint found! Displayed transactions may not be correct! You may need to upgrade, or notify developers of the issue."}
thanks
Why is listunspent not supported in ppcoin??
This is causing us real problems.
can not build with boost 1.52.0 (gentoo)
build/error log: http://pastebin.com/u5GzmNcA
When encrypting wallet warning message says that you may loose Bitcoins if you'll loose password.
https://github.com/ppcoin/ppcoin/wiki/Installation
installation page still links to 0.3.0 while 0.4.0 is current version
https://github.com/FuzzyBearBTC/Peerunity been adding IRC chat and a block explorer to the client, chat is working BE still has bugs
Link for ppcoind.zip for mac os x at https://github.com/ppcoin/ppcoin/wiki/Installation doesn't work. Fix it please or provide another. Thanks in advance
The daemon version build fine.
When I try to build the Qt wallet I am getting:
src/qt/transactiondesc.cpp:247:19: error: variable has incomplete type 'CTxDB'
CTxDB txdb("r"); // To fetch source txouts
^
src/main.h:98:7: note: forward declaration of 'CTxDB'
class CTxDB;
^
even if we arent supporting peer searching by irc, we should update it to use a channel #peercoin-00-#peercoin-99...
What about an integration and use of LevelDB in ppcoin client like bitcoin client?
The database will grow up and become slow.
It has been suggested to change the timedrift parameter value from two hours (set by nMaxClockDrift in main.h) to one minute (http://www.peercointalk.org/index.php?topic=3931.msg37731#msg37731). This would prevent a malicious user to intentionally change his clock and mint far in the future and consequently drastically increase his chances to mint a PoS block.
A few minutes shouldn't be a big issue, it shouldn't lead to a lot of orphan PoS blocks due to desynchronized client clocks. However, I would recommend performing an appropriate study to determine which parameter's value is best. Several factors need to be taken into account such as: network speed or lags (i.e. wallet used behind a proxy), computer speed (i.e. slow Raspberry Pi), and anything else that could affect time during the minting process.
There are several studies online about time drifting distributions that would help figure out which is the optimal value to use to come up with a minimal orphan amount while preventing malicious users to increase their minting chances too much.
Some studies:
http://blog.codinghorror.com/keeping-time-on-the-pc/
http://vancouver-webpages.com/time/
http://vancouver-webpages.com/time/web.html
From what we can observe, if a web server is desynchronized by more than 20 seconds, then it is more likely that it is completely desynchronized (more than 2h, either voluntary or by mistake). If we consider computers, this study shows that this number is more likely to be around 400 seconds.
Consequently I would suggest that we adjust our timedrift parameter for a value of 360 seconds = 3 minutes. Which should cover the eventual network/computer lags. This number is not very accurate, and I believe we can perform a better analysis/study of which value we should use, but at least if a minter detects some orphan blocks he will understand by looking at his clock that this is the problem. Because a drifted clock of 3 minutes is pretty obvious to spot and correct.
Nowadays most computers are permanently synchronized with NTP servers, so it's pretty clear that two hours is way too much in any case and it's an unnecessary attack vector for whoever wants to exploit it (low impact but medium likelihood).
This issue is also discussed here: http://www.peercointalk.org/index.php?topic=2976.msg27924#msg27924
Link on front page of this repo to www.ppcoin.org is broken
peercoin.net?
Hi,
I have this error when I build the project, let me know what I am doing wrong, cheers Seb
opt/local/lib -o build/macdockiconhandler.o src/qt/macdockiconhandler.mm
src/qt/macdockiconhandler.mm:50:39: error: assigning to 'objc_object *' from
incompatible type 'DockIconClickEventHandler *'
...= [[DockIconClickEventHandler alloc] initWithDockIconHandler:this];
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/qt/macdockiconhandler.mm:60:6: warning: receiver type 'objc_object *' is not
'id' or interface pointer, consider casting it to 'id' [-Wreceiver-expr]
[this->m_dockIconClickEventHandler release];
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Patch 1e5a015 broke the sendmany functionality for windows by changing the syntax The Linux style syntax now works for windows instead. There needs to be some sort of documentation for anyone working on windows applications
From windows cmd try
ppcoind sendmany "[insert testnet account label]" {"""[insert testnet address]""":1.00,"""[insert testnet address]""":5.75,"""[insert testnet address]""":0.25}
0.3.0 works fine
0.4 "error type mismatch"
VS
ppcoind sendmany '[insert testnet account label]' '{"[insert testnet account address]":1,"[insert testnet account addressl]":1}'
0.3.0 "error type mismatch"
0.4 works fine
I've build 0.4 on both 1) a windows 7 machine using mingw, and 2) through gitian on ubuntu 12.04. to confirm this change persists for both styles of building.
All pull requests from user avanesov as of today are just find PPC replace by PPCoin or similar changes. And a few of them regarding copyrights might be inappropiate. Appear as spam to me.
On the receive coins tab just above label
it says: "These are your Bitcoin addresses ...." Should be Peercoin.
I am trying to merge against your work. Are there any major problems that still needs to be fixed? I have tested it and it seems stable enough to be used.
I've created this issue to track commits against, that address areas of the UI that contain outdated language from the original port of the /bitcoin repo.
Please feel free to add comments to this issue that call out areas of the user interface where you have seen issues with labels or descriptive text, and I'll do my best to address them as time permits.
pulled current version (v0.6.3rc1?):
git pull
remote: Counting objects: 8, done.
remote: Compressing objects: 100% (2/2), done.
remote: Total 5 (delta 3), reused 5 (delta 3)
Unpacking objects: 100% (5/5), done.
From https://github.com/ppcoin/ppcoin
290825c..defc1c0 master -> origin/master
Updating 290825c..defc1c0
Fast-forward
src/base58.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
$ make -f makefile.unix
/bin/sh ../share/genbuild.sh obj/build.h
g++ -c -pthread -Wall -Wextra -Wno-sign-compare -Wno-invalid-offsetof -Wno-unused-parameter -Wformat -Wformat-security -g -DBOOST_SPIRIT_THREADSAFE -I/ppcoin/src -I/ppcoin/src/obj -DUSE_UPNP=0 -DHAVE_BUILD_INFO -fno-stack-protector -fstack-protector-all -Wstack-protector -Wl,-z,relro -Wl,-z,now -D_FORTIFY_SOURCE=2 -O2 -MMD -o obj/version.o version.cpp
g++ -c -pthread -Wall -Wextra -Wno-sign-compare -Wno-invalid-offsetof -Wno-unused-parameter -Wformat -Wformat-security -g -DBOOST_SPIRIT_THREADSAFE -I/ppcoin/src -I/ppcoin/src/obj -DUSE_UPNP=0 -DHAVE_BUILD_INFO -fno-stack-protector -fstack-protector-all -Wstack-protector -Wl,-z,relro -Wl,-z,now -D_FORTIFY_SOURCE=2 -O2 -MMD -o obj/checkpoints.o checkpoints.cpp
g++ -c -pthread -Wall -Wextra -Wno-sign-compare -Wno-invalid-offsetof -Wno-unused-parameter -Wformat -Wformat-security -g -DBOOST_SPIRIT_THREADSAFE -I/ppcoin/src -I/ppcoin/src/obj -DUSE_UPNP=0 -DHAVE_BUILD_INFO -fno-stack-protector -fstack-protector-all -Wstack-protector -Wl,-z,relro -Wl,-z,now -D_FORTIFY_SOURCE=2 -O2 -MMD -o obj/db.o db.cpp
g++ -c -pthread -Wall -Wextra -Wno-sign-compare -Wno-invalid-offsetof -Wno-unused-parameter -Wformat -Wformat-security -g -DBOOST_SPIRIT_THREADSAFE -I/ppcoin/src -I/ppcoin/src/obj -DUSE_UPNP=0 -DHAVE_BUILD_INFO -fno-stack-protector -fstack-protector-all -Wstack-protector -Wl,-z,relro -Wl,-z,now -D_FORTIFY_SOURCE=2 -O2 -MMD -o obj/init.o init.cpp
g++ -c -pthread -Wall -Wextra -Wno-sign-compare -Wno-invalid-offsetof -Wno-unused-parameter -Wformat -Wformat-security -g -DBOOST_SPIRIT_THREADSAFE -I/ppcoin/src -I/ppcoin/src/obj -DUSE_UPNP=0 -DHAVE_BUILD_INFO -fno-stack-protector -fstack-protector-all -Wstack-protector -Wl,-z,relro -Wl,-z,now -D_FORTIFY_SOURCE=2 -O2 -MMD -o obj/irc.o irc.cpp
g++ -c -pthread -Wall -Wextra -Wno-sign-compare -Wno-invalid-offsetof -Wno-unused-parameter -Wformat -Wformat-security -g -DBOOST_SPIRIT_THREADSAFE -I/ppcoin/src -I/ppcoin/src/obj -DUSE_UPNP=0 -DHAVE_BUILD_INFO -fno-stack-protector -fstack-protector-all -Wstack-protector -Wl,-z,relro -Wl,-z,now -D_FORTIFY_SOURCE=2 -O2 -MMD -o obj/keystore.o keystore.cpp
g++ -c -pthread -Wall -Wextra -Wno-sign-compare -Wno-invalid-offsetof -Wno-unused-parameter -Wformat -Wformat-security -g -DBOOST_SPIRIT_THREADSAFE -I/ppcoin/src -I/ppcoin/src/obj -DUSE_UPNP=0 -DHAVE_BUILD_INFO -fno-stack-protector -fstack-protector-all -Wstack-protector -Wl,-z,relro -Wl,-z,now -D_FORTIFY_SOURCE=2 -O2 -MMD -o obj/main.o main.cpp
main.cpp:2287:9: warning: this decimal constant is unsigned only in ISO C90 [enabled by default]
g++ -c -pthread -Wall -Wextra -Wno-sign-compare -Wno-invalid-offsetof -Wno-unused-parameter -Wformat -Wformat-security -g -DBOOST_SPIRIT_THREADSAFE -I/ppcoin/src -I/ppcoin/src/obj -DUSE_UPNP=0 -DHAVE_BUILD_INFO -fno-stack-protector -fstack-protector-all -Wstack-protector -Wl,-z,relro -Wl,-z,now -D_FORTIFY_SOURCE=2 -O2 -MMD -o obj/net.o net.cpp
g++ -c -pthread -Wall -Wextra -Wno-sign-compare -Wno-invalid-offsetof -Wno-unused-parameter -Wformat -Wformat-security -g -DBOOST_SPIRIT_THREADSAFE -I/ppcoin/src -I/ppcoin/src/obj -DUSE_UPNP=0 -DHAVE_BUILD_INFO -fno-stack-protector -fstack-protector-all -Wstack-protector -Wl,-z,relro -Wl,-z,now -D_FORTIFY_SOURCE=2 -O2 -MMD -o obj/bitcoinrpc.o bitcoinrpc.cpp
g++ -c -pthread -Wall -Wextra -Wno-sign-compare -Wno-invalid-offsetof -Wno-unused-parameter -Wformat -Wformat-security -g -DBOOST_SPIRIT_THREADSAFE -I/ppcoin/src -I/ppcoin/src/obj -DUSE_UPNP=0 -DHAVE_BUILD_INFO -fno-stack-protector -fstack-protector-all -Wstack-protector -Wl,-z,relro -Wl,-z,now -D_FORTIFY_SOURCE=2 -O2 -MMD -o obj/rpcdump.o rpcdump.cpp
g++ -c -pthread -Wall -Wextra -Wno-sign-compare -Wno-invalid-offsetof -Wno-unused-parameter -Wformat -Wformat-security -g -DBOOST_SPIRIT_THREADSAFE -I/ppcoin/src -I/ppcoin/src/obj -DUSE_UPNP=0 -DHAVE_BUILD_INFO -fno-stack-protector -fstack-protector-all -Wstack-protector -Wl,-z,relro -Wl,-z,now -D_FORTIFY_SOURCE=2 -O2 -MMD -o obj/script.o script.cpp
g++ -c -pthread -Wall -Wextra -Wno-sign-compare -Wno-invalid-offsetof -Wno-unused-parameter -Wformat -Wformat-security -g -DBOOST_SPIRIT_THREADSAFE -I/ppcoin/src -I/ppcoin/src/obj -DUSE_UPNP=0 -DHAVE_BUILD_INFO -fno-stack-protector -fstack-protector-all -Wstack-protector -Wl,-z,relro -Wl,-z,now -D_FORTIFY_SOURCE=2 -O2 -MMD -o obj/wallet.o wallet.cpp
g++ -c -pthread -Wall -Wextra -Wno-sign-compare -Wno-invalid-offsetof -Wno-unused-parameter -Wformat -Wformat-security -g -DBOOST_SPIRIT_THREADSAFE -I/ppcoin/src -I/ppcoin/src/obj -DUSE_UPNP=0 -DHAVE_BUILD_INFO -fno-stack-protector -fstack-protector-all -Wstack-protector -Wl,-z,relro -Wl,-z,now -D_FORTIFY_SOURCE=2 -O2 -MMD -o obj/walletdb.o walletdb.cpp
g++ -c -pthread -Wall -Wextra -Wno-sign-compare -Wno-invalid-offsetof -Wno-unused-parameter -Wformat -Wformat-security -g -DBOOST_SPIRIT_THREADSAFE -I/ppcoin/src -I/ppcoin/src/obj -DUSE_UPNP=0 -DHAVE_BUILD_INFO -fno-stack-protector -fstack-protector-all -Wstack-protector -Wl,-z,relro -Wl,-z,now -D_FORTIFY_SOURCE=2 -O2 -MMD -o obj/noui.o noui.cpp
g++ -pthread -Wall -Wextra -Wno-sign-compare -Wno-invalid-offsetof -Wno-unused-parameter -Wformat -Wformat-security -g -DBOOST_SPIRIT_THREADSAFE -I/ppcoin/src -I/ppcoin/src/obj -DUSE_UPNP=0 -DHAVE_BUILD_INFO -fno-stack-protector -fstack-protector-all -Wstack-protector -Wl,-z,relro -Wl,-z,now -D_FORTIFY_SOURCE=2 -O2 -rdynamic -o ppcoind obj/version.o obj/checkpoints.o obj/netbase.o obj/addrman.o obj/crypter.o obj/key.o obj/db.o obj/init.o obj/irc.o obj/keystore.o obj/main.o obj/net.o obj/protocol.o obj/bitcoinrpc.o obj/rpcdump.o obj/script.o obj/util.o obj/wallet.o obj/walletdb.o obj/noui.o -Wl,-Bdynamic -l boost_system -l boost_filesystem -l boost_program_options -l boost_thread -l db_cxx -l ssl -l crypto -l miniupnpc -Wl,-Bdynamic -l z -l dl -l pthread
.text._ZN5boost16exception_detail10clone_implINS0_14bad_exception_EED2Ev' referenced in section
.text._ZN5boost16exception_detail10clone_implINS0_14bad_exception_EED1Ev[non-virtual thunk to boost::exception_detail::clone_implboost::exception_detail::bad_exception_::~clone_impl()]' of obj/netbase.o: defined in discarded section .text._ZN5boost16exception_detail10clone_implINS0_14bad_exception_EED2Ev[_ZN5boost16exception_detail10clone_implINS0_14bad_exception_EED5Ev]' of obj/netbase.o
.text._ZN5boost16exception_detail10clone_implINS0_14bad_exception_EED2Ev' referenced in section .text._ZN5boost16exception_detail10clone_implINS0_14bad_exception_EED1Ev[non-virtual thunk to boost::exception_detail::clone_impl<boost::exception_detail::bad_exception_>::~clone_impl()]' of obj/netbase.o: defined in discarded section
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.text.ZN5boost16exception_detail10bad_alloc_D1Ev[non-virtual thunk to boost::exception_detail::bad_alloc::~bad_alloc()]' of obj/netbase.o: defined in discarded section .text._ZN5boost16exception_detail10bad_alloc_D2Ev[_ZN5boost16exception_detail10bad_alloc_D5Ev]' of obj/netbase.o
.text._ZN5boost16exception_detail14bad_exception_D2Ev' referenced in section .text._ZN5boost16exception_detail14bad_exception_D1Ev[non-virtual thunk to boost::exception_detail::bad_exception_::~bad_exception_()]' of obj/netbase.o: defined in discarded section
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.text._ZN5boost16exception_detail10clone_implINS0_10bad_alloc_EED1Ev[non-virtual thunk to boost::exception_detail::clone_implboost::exception_detail::bad_alloc_::~clone_impl()]' of obj/netbase.o: defined in discarded section .text._ZN5boost16exception_detail10clone_implINS0_10bad_alloc_EED2Ev[_ZN5boost16exception_detail10clone_implINS0_10bad_alloc_EED5Ev]' of obj/netbase.o
.text._ZN5boost16exception_detail10clone_implINS0_10bad_alloc_EED2Ev' referenced in section .text._ZN5boost16exception_detail10clone_implINS0_10bad_alloc_EED1Ev[non-virtual thunk to boost::exception_detail::clone_impl<boost::exception_detail::bad_alloc_>::~clone_impl()]' of obj/netbase.o: defined in discarded section
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.text._ZN5boost16exception_detail19error_info_injectorINS_21thread_resource_errorEED2Ev' referenced in section
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.text._ZN5boost16exception_detail19error_info_injectorINS_10lock_errorEED2Ev' referenced in section.text._ZN5boost16exception_detail19error_info_injectorINS_10lock_errorEED1Ev[non-virtual thunk to boost::exception_detail::error_info_injectorboost::lock_error::~error_info_injector()]' of obj/util.o: defined in discarded section
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collect2: ld returned 1 exit status
make: *** [ppcoind] Error 1
We should use our own IRC server.
irc.lfnet.org seems dead, people are having trouble connecting to Peercoin's network: https://github.com/ppcoin/ppcoin/blob/master/src/irc.cpp#L223-L225
Also it would be a good idea to have our channels named "#peercoinXX"instead of "#bitcoinXX": https://github.com/ppcoin/ppcoin/blob/master/src/irc.cpp#L295-L303
Could you please create a new tree from master ppcoin v0.6.3rc1 is pretty out of date and is showing some bitcoin message that is not on the master branch. So create a new tree with the latest update and patch from bitcoin and your optimization will be pretty amazing. Please consider this request.
The wallet states BTC instead of PPC and the installer icon is the bitcoin logo as well
Is there still no way to get transaction details for non-wallet transactions via ppcoind?
I would very much like to include peercoin in multiple ongoing projects but I'm having trouble getting transactional data from the daemon.
There is no getrawtransaction call and gettransaction only returns information for in-wallet transactions, even with txindex=1 in .conf and the index properly built.
Is anyone maintaining the peercoin code and if so, is a pull of the getrawtransaction code on the roadmap?
Also, how might current peercoin block explorers be parsing general transaction data?
add support for multiple wallets and wallet rename.
Please add support for batch rpc call.
rename executable and other files from bitcoin to ppcoin
I'm afraid I don't have much more than an observation for this bug report so far. But when the v0.4.0ppc-beta client just minted a block the balances in the QT client didn't update (e.g. Stake: 0 even though there is a transaction for the minted reward in my transaction history).
Environment: v0.4.0ppc-beta 64-bit ubuntu 14.04 64bit
Expected behavior: When the peercoin client mints a block it should update the wallet balances accordingly.
Current work around: Restart the client.
How can I build Peercoin Wallet on FreeBSD? Any idea?
I protect wallets by renaming wallet.dat to other name...
If wallet is missing ppcoin.exe will create a new wallet.
I need to wait while ppcoin.exe start, close it, delete the new created wallet, rename my wallet and start anew.
Can you modify...
if wallet exist { start ppcoin.exe }
else { select "Create new wallet" or "close" }
Using the development version of ppcoind.
/root/ppcoin/src/ppcoind --help | grep vers
PPCoin version v0.4.0ppc-1915-g4536df1-beta
/root/ppcoin/src/ppcoind listaccounts
{
"" : 325.17000000
}
/root/ppcoin/src/ppcoind sendfrom "" PSomeaddress 100
error: {"code":-4,"message":"Insufficient funds"}
I tried sending using different options but none works.
Any ideas how to get this working?
The code is here: https://github.com/ppcoin/ppcoin/blob/master/src/wallet.cpp#L1331
This is a client-side implementation/protection, with no option to disable this behavior. A transaction that mints before 90 days of maturity is split in two for some unknown reasons... If the split doesn't occur (i.e. using a modified client) the transaction is still valid and accepted by the network.
An option that allows the user to specify the number of TXouts resulting from this split could also be a cool feature. For example, we can imagine that a user has 100,000 PPC and wants to split them in 3 everytime they mint.
An option to adjust these 90 days could also be interesting. For example, if I want my coins to split only if they can mint within 60 days of maturity, but not past 60 days.
Problem:
Step to reproduce:
Expected:
The "heartbleed" openssl vulnerability is not something that affects the Peercoin protocol or wallet security. Like Bitcoin, the only potential effect is during the use of TLS in RPC-over-SSL, and when fetching payment requests over HTTPS.
Following a "rather safe than sorry," and with the recent release of v0.4.0, it's worth patching.
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