[ANNOUNCE] picocoin and libccoin -- C-based bitcoin library and client

[Aido]

There has been a noticeable decline in the number of active bitcoin nodes over the past few months. The following website has some nice graphs showing this decline:

https://getaddr.bitnodes.io/dashboard/chart/?days=60

Maybe picocoin is a possible solution to this declining trend.

If picocoin (or more specifically brd) is lightweight enough it could be built as a DD-WRT and/or OpenWRT package. We would then potentially have tens if not hundreds of thousands routers in peoples homes working as bitcoin relays.

[jgarzik]

If picocoin (or more specifically brd) is lightweight enough it could be built as a DD-WRT and/or OpenWRT package. We would then potentially have tens if not hundreds of thousands routers in peoples homes working as bitcoin relays.

It is more a question of whether or not a platform is heavyweight enough to support a full node.

At first blush, you need enough data storage to store the entire blockchain (though perhaps mount over NFS), enough CPU to verify incoming data, and enough bandwidth to send and receive data.

[Aido]

all pull requests will be reviewed, tested and merged with lightning speed

ahem......#25

On a more serious note, I mentioned previously that I was investigating introducing LMDB to the picocoin project. Before delving too deeply into this should the OpenLDAP Public Licence used by LMDB be a concern when used in a MIT/X11 software licensed project like picocoin?

[KaChingCoinDev]

This is interesting. How close to the regular bitcoin code is it?

[Aido]

How close to the regular bitcoin code is it?

• Supports all core data structures and network messages
• Full script implementation
• Passes hundreds of available reference client tests
• Supports multiple block chains: main or testnet3

• Written by bitcoin core developer

[Aido]

In light of the current "51% attack" brouhaha raging on Reddit, how difficult would it be to add some p2pool mining functionality to the picocoin library?

All the core bitcoin and p2p functionality is there, ready to be built upon.

[jgarzik]

In light of the current "51% attack" brouhaha raging on Reddit, how difficult would it be to add some p2pool mining functionality to the picocoin library?

It would take several days of work, but it's not complicated.  Basically, as you probably have guessed, P2Pool chain is simply another chain to manage.

[Bawaler]

Gonna try this on my Mac Pro. Dual 970FX Big Endian, running Debian 8 smoothly. I've waited for this, just didn't notice this software earlier.

Aiming to have a pool running on the IBM Power BE architecture.

[Wats0ns]

Libccoin looks very useful, that's exactly what I was looking for my project, thanks a lot
picocoin souds promising too, I will keep an eye on its developpement 

[jgarzik]

Some minor compile fixes pushed out to git.  Further OSX compile fixes coming soon.

[virtualx]

I had some trouble locating all the packages. I was missing libjansson and libevent_core.
Is my repository out of date?

[jgarzik]

I had some trouble locating all the packages. I was missing libjansson and libevent_core.
Is my repository out of date?

jansson and libevent are both still needed.

This is what I have installed on Ubuntu:

Code:

ii  libevent-2.0-5:amd64                                        2.0.21-stable-1ubuntu1.14.04.1                      amd64        Asynchronous event notification library
ii  libevent-core-2.0-5:amd64                                   2.0.21-stable-1ubuntu1.14.04.1                      amd64        Asynchronous event notification library (core)
ii  libevent-dev                                                2.0.21-stable-1ubuntu1.14.04.1                      amd64        Asynchronous event notification library (development files)
ii  libevent-extra-2.0-5:amd64                                  2.0.21-stable-1ubuntu1.14.04.1                      amd64        Asynchronous event notification library (extra)
ii  libevent-openssl-2.0-5:amd64                                2.0.21-stable-1ubuntu1.14.04.1                      amd64        Asynchronous event notification library (openssl)
ii  libevent-pthreads-2.0-5:amd64                               2.0.21-stable-1ubuntu1.14.04.1                      amd64        Asynchronous event notification library (pthreads)
ii  libjansson-dev:amd64                                        2.5-2                                               amd64        C library for encoding, decoding and manipulating JSON data (dev)
ii  libjansson4:amd64                                           2.5-2                                               amd64        C library for encoding, decoding and manipulating JSON data

Not sure what's the process for OSX - macports?

[jgarzik]

The libccoin library no longer depends on GLib library.  That dependency has been completely removed.

[rupy]

Could I use picocoin with JNI today to make payments with Java and use bitcoinj for the wallet parts?

[7queue]

I had some trouble locating all the packages. I was missing libjansson and libevent_core.
Is my repository out of date?

jansson and libevent are both still needed.

This is what I have installed on Ubuntu:

Code:

ii  libevent-2.0-5:amd64                                        2.0.21-stable-1ubuntu1.14.04.1                      amd64        Asynchronous event notification library
ii  libevent-core-2.0-5:amd64                                   2.0.21-stable-1ubuntu1.14.04.1                      amd64        Asynchronous event notification library (core)
ii  libevent-dev                                                2.0.21-stable-1ubuntu1.14.04.1                      amd64        Asynchronous event notification library (development files)
ii  libevent-extra-2.0-5:amd64                                  2.0.21-stable-1ubuntu1.14.04.1                      amd64        Asynchronous event notification library (extra)
ii  libevent-openssl-2.0-5:amd64                                2.0.21-stable-1ubuntu1.14.04.1                      amd64        Asynchronous event notification library (openssl)
ii  libevent-pthreads-2.0-5:amd64                               2.0.21-stable-1ubuntu1.14.04.1                      amd64        Asynchronous event notification library (pthreads)
ii  libjansson-dev:amd64                                        2.5-2                                               amd64        C library for encoding, decoding and manipulating JSON data (dev)
ii  libjansson4:amd64                                           2.5-2                                               amd64        C library for encoding, decoding and manipulating JSON data

Not sure what's the process for OSX - macports?

Do you plan on staying with libevent? I would like to try this on *BSD/Solaris ...

Thanks!

8 )

[polyclef]

Not sure what's the process for OSX - macports?

These days, homebrew is the standard.  They do require a tagged release though.
"Formulae in the core repository must have a stable version tagged by the upstream project. Tarballs are preferred to git checkouts, and tarballs should include the version in the filename whenever possible."

If you do that, I'll make a formula and submit it.

[cloudboy]

Is there a tutorial somewhere?

I can create addresses and start netsync, but how to check balance and use rawtx?

Why isn't there better documentation for this?

[dako300]

Is there a tutorial somewhere?

I can create addresses and start netsync, but how to check balance and use rawtx?

Why isn't there better documentation for this?

I would love to see some documentation for this

[0bit]

Any news on this project? I am trying to netsync although everything appears to be timing out or refusing. Even with no firewall. Is there any documentation someone can point me to?

[buzztiaan]

seems nobody is interested in adding documentation to this project

too bad, could have gotten some usage