Also Jeff,
You have seen my attempts at swapping out the OpenSSL dependency in favour of PolarSSL to facilitate having picocoin run on low powered and embedded devices.
PolarSSL developers have indicated that they plan on releasing a new update early next week: https://github.com/polarssl/polarssl/issues/71
This new release should mean that PolarSSL now implements all bitcoin requirements. The PolarSSL guys have been most helpful on this.
Once this new PolarSSL release drops I will be able to finish up my PolarSSL pull request fairly quickly after that. A period of rigorous testing should follow as removing the OpenSSL dependency is a fundamental change.
Topic: [ANNOUNCE] picocoin and libccoin -- C-based bitcoin library and client - page 4. (Read 30762 times)
March 22, 2014, 02:44:55 PM
March 22, 2014, 02:17:25 PM
A poor first attempt at writing some TX_MULTISIG code here:
https://github.com/aido/picocoin/commit/d6635879c1f6ab4812a0b123db3800d555c2993d
It's probably not worthy of a pull request but there may be something of use that can be copied and pasted into the main code.
https://github.com/aido/picocoin/commit/d6635879c1f6ab4812a0b123db3800d555c2993d
It's probably not worthy of a pull request but there may be something of use that can be copied and pasted into the main code.
Just pushed out a commit that implements this.
March 22, 2014, 02:14:36 PM
Added two new utilities, "txmod" and "blkstats"
Added some P2SH scripting ability, also.
Added some P2SH scripting ability, also.
Always good to see picocoin getting some more TLC
March 22, 2014, 09:35:40 AM
Hey folks, wondering if anyone here could help me with this: https://bitcointalksearch.org/topic/a-publicly-queryable-database-of-info-scraped-from-the-blockchain-526089
I was looking at libbitcoin, it seems pretty great, although I haven't looked at C++ in years.. Would this be easy to do: a parser for the blockchain to load every transaction into a mongodb database? I'd like to decode the transactions as they're read and log some information about each.
Once I have all the old transactions done I'd just write something simple in PHP to continuously add information as it happens, but there's no quick way to decode every single transaction if I'm asking bitcoind to decode the transaction every time.
I was looking at libbitcoin, it seems pretty great, although I haven't looked at C++ in years.. Would this be easy to do: a parser for the blockchain to load every transaction into a mongodb database? I'd like to decode the transactions as they're read and log some information about each.
Once I have all the old transactions done I'd just write something simple in PHP to continuously add information as it happens, but there's no quick way to decode every single transaction if I'm asking bitcoind to decode the transaction every time.
March 22, 2014, 08:55:41 AM
A poor first attempt at writing some TX_MULTISIG code here:
https://github.com/aido/picocoin/commit/d6635879c1f6ab4812a0b123db3800d555c2993d
It's probably not worthy of a pull request but there may be something of use that can be copied and pasted into the main code.
https://github.com/aido/picocoin/commit/d6635879c1f6ab4812a0b123db3800d555c2993d
It's probably not worthy of a pull request but there may be something of use that can be copied and pasted into the main code.
It's a good start. The main bug there is that 'pubkeys' is plural. You have to parse multiple entities out of the script to match a single "OP_PUBKEYS" That requires a bit more reworking of the script parser, which fundamentally assumes there is a 1:1 ratio between opcodes and script data items. With "OP_PUBKEYS", that assumption fails.
(I was looking at this last night
) March 22, 2014, 08:53:39 AM
Added two new utilities, "txmod" and "blkstats"
Added some P2SH scripting ability, also.
Added some P2SH scripting ability, also.
January 11, 2014, 03:48:23 PM
A poor first attempt at writing some TX_MULTISIG code here:
https://github.com/aido/picocoin/commit/d6635879c1f6ab4812a0b123db3800d555c2993d
It's probably not worthy of a pull request but there may be something of use that can be copied and pasted into the main code.
https://github.com/aido/picocoin/commit/d6635879c1f6ab4812a0b123db3800d555c2993d
It's probably not worthy of a pull request but there may be something of use that can be copied and pasted into the main code.
January 11, 2014, 02:33:04 PM
Minor update for a script parsing bug pushed to git.
January 11, 2014, 01:58:38 AM
Nice work, thanks. 
January 09, 2014, 07:35:35 PM
No recent progress, but any and all pull requests will be reviewed, tested and merged with lightning speed
January 09, 2014, 04:18:19 PM
From the Bitcoin with Raspberry Pithread:
There are a few people (i.e. me and someone else ) interested in getting picocoin running on a Raspberry Pi. Has there been any further progress of late?
I had bitcoind 0.8.1 running on a Raspberry Pi and performance was terrible.....very high CPU usage and too many r/w operations.
Jeff Garzik, one of the core bitcoin developers, is writing a lightweight C library called libccoin and a client called picocoin.
When finished this should be suitable for running on low powered devices like a Raspberry Pi.
Jeff Garzik, one of the core bitcoin developers, is writing a lightweight C library called libccoin and a client called picocoin.
When finished this should be suitable for running on low powered devices like a Raspberry Pi.
Does anyone know the status of picocoin? I can't wait for a stable version. It would help my project immensely.
There are a few people (i.e. me and someone else
) interested in getting picocoin running on a Raspberry Pi. Has there been any further progress of late? January 06, 2014, 04:03:26 PM
I am thinking of using the libccoin and picocoin code as the basis of an alternative currency I am developing.
More details here: https://bitcointalksearch.org/topic/pre-annnum-nummum-399728
The main purpose of this alt currency is educational for me and to be a challenge to which I hope I can rise. I do not want to follow the same route as a lot of other alt currencies, cloning the bitcoin code and making a few minor changes. Not much can be learned from this.
Before I jump in and start writing code I would like an expert opinion. For the type of altcoin I intend to develop is libccoin/picocoin a good foundation to build upon or am I wasting my time? I know the picocoin code is not complete but that is part of the challenge I have set myself.
More details here: https://bitcointalksearch.org/topic/pre-annnum-nummum-399728
The main purpose of this alt currency is educational for me and to be a challenge to which I hope I can rise. I do not want to follow the same route as a lot of other alt currencies, cloning the bitcoin code and making a few minor changes. Not much can be learned from this.
Before I jump in and start writing code I would like an expert opinion. For the type of altcoin I intend to develop is libccoin/picocoin a good foundation to build upon or am I wasting my time? I know the picocoin code is not complete but that is part of the challenge I have set myself.
December 01, 2013, 07:55:14 PM
Most key/value databases cannot scale to the millions of records and data access patterns that bitcoin requires, so it requires careful evaluation.
Indeed; but the Sophia benchmarks compared to LevelDB look promising, if they are to be believed.
LMDB (http://symas.com/mdb/) looks interesting too. Not sure about the OpenLDAP license though.
November 30, 2013, 04:09:20 PM
Is this project dead or stalled? I see that github hasn't had a commit in over 2 months now.
Stalled, though I am aware of at least two people working on embedded projects based on libccoin.
This Christmas I'm hoping to finish the client.
Quote
Also, any advice on whether incorporating Sophia (http://www.sphia.org/) is a good or a bad idea?
Seems worth checking out. Most key/value databases cannot scale to the millions of records and data access patterns that bitcoin requires, so it requires careful evaluation.
November 30, 2013, 03:45:54 PM
Is this project dead or stalled? I see that github hasn't had a commit in over 2 months now.
Also, any advice on whether incorporating Sophia (http://www.sphia.org/) is a good or a bad idea?
Also, any advice on whether incorporating Sophia (http://www.sphia.org/) is a good or a bad idea?
June 26, 2013, 07:07:58 AM
Have there been any advances lately? It's a really awesome project and I hope it reaches a stable release sometime soon. Great work jgarzik!
Some slow advances. The library is seeing use in various places, as the base for custom bitcoin apps that need to be really fast.
The two clients, "brd" (block relay daemon) and "picocoin" (SPV client) remain incomplete and have not seen much attention.
The library, libccoin, is largely feature complete and available for use today.
June 25, 2013, 11:36:44 PM
Have there been any advances lately? It's a really awesome project and I hope it reaches a stable release sometime soon. Great work jgarzik!
May 03, 2013, 03:05:54 AM
Hey I'm onto this RPi with free colocation path aswell.
Bitcoind consumes to much memory and diskspace to be a viable option.
I'll try and compile this to see if it runs ok.
When will payment be added?
Edit:I'm a complete noob, how do I build picocoin?
sudo apt-get install libevent-dev libjansson-dev automake libglib2.0-dev
Bitcoind consumes to much memory and diskspace to be a viable option.
I'll try and compile this to see if it runs ok.
When will payment be added?
Edit:
sudo apt-get install libevent-dev libjansson-dev automake libglib2.0-dev
April 06, 2013, 05:49:22 AM
I downloaded the lastest code and was able to compile and run on both my x86-64 machine and my Raspberry PI arm marchine. However, when I try running netsync, both machines fail and say all the ip addresses are unrechable:
Regular bitcoin client works fine on my x86-64 machine, so I don't think my router blocking ports could be the problem. Any ideas?
(I am wanting to turn my PI into a lightweight pay-to-download fileserver...so any suggestions are helpful. I'd want to set it up so people can download a file after their bitcoin transaction gets a couple confirmations.)
Quote
socket connect 2a02:348:5e:5a29::1: Network is unreachable
net: failed to start connection to 2a02:348:5e:5a29::1
net: connect 69.164.196.4 failed: Connection refused
net: failed to start connection to 2a02:348:5e:5a29::1
net: connect 69.164.196.4 failed: Connection refused
Regular bitcoin client works fine on my x86-64 machine, so I don't think my router blocking ports could be the problem. Any ideas?
(I am wanting to turn my PI into a lightweight pay-to-download fileserver...so any suggestions are helpful. I'd want to set it up so people can download a file after their bitcoin transaction gets a couple confirmations.)
December 30, 2012, 10:00:04 AM
Everything builds and tests pass on MacOS X 10.7. Good job on this code, you've written the client Satoshi should have.
Satoshi could not have written a light client...
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