Technical Discussions Thread

[NilamDoc]

The problem is not with the wallet, the problem is with the client 0.7 which was mining. It was not able to accept block chain height 225430.

So,
- if you are using 0.8 -- do not worry
- if you are using 0.8 and mining - stop mining and wait till proper instruction comes from the core development team.
- if you are using 0.7 and not mining - do not worry
- if you are using 0.7 and mining - stop mining and wait till proper instruction comes from the core development team.

blockchain.info has the same alert message and also https://mtgox.zendesk.com/entries/21477395-Bitcoin-blockchain-issue-bitcoin-deposits-temporarily-suspended has stopped accepting deposits / inputs

Do not spend, till further notice comes from the team of core developers.

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[NilamDoc]

You can watch the ongoing battle, here, at blockchain.info/blocks. The orphaned blocks are part of the 0.7 chain which is trying to catch up to the longer, 0.8 main chain.

It will take some time for all the Orphaned blocks to cope up and attach to main chain.

[Benson Samuel]

Any bad losses for anyone here in India?

I seem to have mined a bunch of 0.8 .

Well, atleast it is back up and doing as well as before!

I think this episode will push the price past 50.

[NilamDoc]

Block chain is catching up!

225431 (Orphaned)    2013-03-11 23:43:30    00000000000000f2c09bd58b84a7ef33fbc038a6fed97c072643b1e61d8ab841
225431 (Main Chain)    2013-03-11 22:46:35    00000000000002d2012cc1b3fc0cceb8c156f0e698db40bf4413a210eca056c3

So it should be stable in a couple of hours!

[Benson Samuel]

Yeah, am not worried.

This is good for bitcoin!

[NilamDoc]

Hi Benson,

This would be a good article to read!

http://bitcoinreport.com/will-bitcoin-reach-100000/

It has compared the market cap for different companies and projected the value of BTC.

It seems to be real in the sense that on 31st Dec 2012 the market cap was 141M and price was $13.43.

Today 12th Mar 2013, as I write this the market cap is 508M and the price is about $48.

As the number of users are increasing the market cap is going to hit 1B within a few months, I expect BTC to reach $80+ within a few months.

[NilamDoc]

Latest update

http://bitcoin.org/chainfork.html

No risk for any user, who are not mining...

[Pinwheel]

seems like price drop is what they wanted. People panicked price dropped to 36 now they will sale those coins for 45.

[Benson Samuel]

Hi Benson,

This would be a good article to read!

http://bitcoinreport.com/will-bitcoin-reach-100000/

It has compared the market cap for different companies and projected the value of BTC.

It seems to be real in the sense that on 31st Dec 2012 the market cap was 141M and price was $13.43.

Today 12th Mar 2013, as I write this the market cap is 508M and the price is about $48.

As the number of users are increasing the market cap is going to hit 1B within a few months, I expect BTC to reach $80+ within a few months.

Yes,

This was another article along the same lines.

http://falkvinge.net/2013/03/06/the-target-value-for-bitcoin-is-not-some-50-or-100-it-is-100000-to-1000000/

Values Bitcoin between $100K and $1mn US.

[Benson Samuel]

seems like price drop is what they wanted. People panicked price dropped to 36 now they will sale those coins for 45.

And all those who panicked will buy back the same coins at 45.. lmao

[Pinwheel]

that was second such drop since btc began current rise, (at least what I've seen) first time, someone, on Sunday placed sale on market rate order on mtgox and dropped price from 30 to 25. On Sundays buy volume not that great.

[Benson Samuel]

Its fluctuating again now.

[NilamDoc]

If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older
versions), then run the installer (on Windows) or just copy over /Applications/Bitcoin-Qt (on Mac) or bitcoind/bitcoin-qt (on Linux).

If you are upgrading from version 0.7.2 or earlier, the first time you run 0.8.1 your blockchain files will be re-indexed, which will take anywhere from 30 minutes to several hours, depending on the speed of your machine.


0.8.1 Release notes
===================

The 0.8.1 release has just two changes from the 0.8.0 release:

1. A new block-acceptance rule that will be enforced from 21 March 2013 until 15 May 2013 to prevent accepting blocks that fail to validate on pre-0.8 peers.

2. A new compiled-in checkpoint at block number 225,430 -- the first block of the 11 March 2013 chain fork.

I upgraded and found it to work well...

Support this upgrade!

[18dew]

Hi,

Benson since FinCEN recomendation it is bound to explode in more touching $80 in matter of few days itself as only point for restraint for bit coin has been only its legality status in USA, which Fin CEN guidance gave it a way.

[Benson Samuel]

Yes, there is also the Euro crisis which is pushing it forward faster in Europe as well.

[NilamDoc]

Hi Friends,

I am starting this technical section for all bitcoin friends. We will try to help out everyone need to install mining server, bitcoin servers, and any other issues in using bitcoin clients interacting with different programming languages.

[Benson Samuel]

I would be able to contribute knowledge of in depth client and server side implementations with web wallets or bitcoind.

I outsource work as well, especially PHP & API related.

[Amitabh S]

Hey NilamDoc and Benson, thanks for sharing this. I'm immune to this fork because I've abandoned my qt client long ago and moved to web-wallet.. 

[NilamDoc]

Yes, moving to a web wallet is an advantage for many users.

I have posted this info as we have many Bitcoin client used as miners and we would like to adhere to the schedule of the bitcoin team to be in sync with the rest of the world.

[Benson Samuel]

Anyone know any good combinations to replace PHP MySQL mainly for web dev?

Looking for something with wide developer support.

[NilamDoc]

Hi Benson,

I use Lithium framework, which was derived from CakePHP and Zend. Nate Abele left CakePHP and started Lithium (lithify.me). It is available on open source at. https://github.com/UnionOfRAD/lithium/
I also use MongoDB instead of MySQL in this framework. It is robust and I mainly rely on replicaSet and Sharding.

Aggregation framework is also an excellent feature.

You can get full support for this in stackoverflow.com and also on http://webchat.freenode.net/ #li3-dev

I am also available for any time for support and teaching the initial setup for this framework.

It uses MVC and thus you can really do a lot with this simple framework.

Any class is a plugin, so you can just add a class to this and it will work fine.

[Benson Samuel]

Isnt there anything apart from PHP for server side scripting?

[NilamDoc]

yes, python is one of the options which you can use for server side scripting for a bitcoin portal.

[Benson Samuel]

Am going to poke at Python & Ruby next.

Both look quite easy.

It is annoying that people ask to move away from PHP. Very few choices apart from it.

[NilamDoc]

Take a look at Lithium framework for PHP, with 5.5 in the framework is robust. I think it will suffice the needs of less programming and robust logic.

[Benson Samuel]

I did take a look at it.

Seems a bit of overkill for my current needs.

[NilamDoc]

Can you explain your requirements in email/chat. I may be able to find a solution for your needs.

[Benson Samuel]

No requirements Nilam.

I am an academic by nature and coding is my latest pet peeve.

I do build applications, but would like to take some time out and learn more.

Trying to absorb as many languages/ frameworks as possible.

[luckyindia]

hai Nilamdoc,Benson & Amit,
 .   1)   which is the best and secure software for BTC web-designing....I had designed a couple of web-sites....all static....which software can help me design dynamic web-sites ?
   2) where can I get a VPN....

[luckyindia]

There are more than a THOUSAND Programming languages...I wanted to learn C......I Purchased all the  books available in the market on C........Progamming languages are like commodities in the stock market. Every Tom, Dick and Harry names a Language.Since I have no time I go for WYSIWYG  softwares. Which is the best open-source WYSIWYG software.? (What You See Is What You Get)

[NilamDoc]

hai Nilamdoc,Benson & Amit,
 .   1)   which is the best and secure software for BTC web-designing....I had designed a couple of web-sites....all static....which software can help me design dynamic web-sites ?
   2) where can I get a VPN....

As I told earlier you can go with a VPN hosted with Apache 2.2 with PHP and MySQL it will be an advantage if you install a framework too....

[skang]

There are more than a THOUSAND Programming languages...I wanted to learn C......I Purchased all the  books available in the market on C........Progamming languages are like commodities in the stock market. Every Tom, Dick and Harry names a Language.Since I have no time I go for WYSIWYG  softwares. Which is the best open-source WYSIWYG software.? (What You See Is What You Get)

That depends on what do you want to do with it?

[Benson Samuel]

There are more than a THOUSAND Programming languages...I wanted to learn C......I Purchased all the  books available in the market on C........Progamming languages are like commodities in the stock market. Every Tom, Dick and Harry names a Language.Since I have no time I go for WYSIWYG  softwares. Which is the best open-source WYSIWYG software.? (What You See Is What You Get)

Lucky, each of those thousand programming languages have a specific function and capabilities.

I assume that you are asking about WYSIWYG editors for the front end. Try weebly.com or wix.com, these are well known online editors that may help you.

[buysellbitcoin]

lucky if you need just static WYSIWYG type of websites,We will recommend http://www.strikingly.com/

Obviously as Benson suggested, webly and wix are more sound and mature platforms

Also in case you want to have a look at a bit more powerful option I will recommend you to go with Wordpress.  Really powwerfull, have tonnes of functionality, cheap to host and maintain.

But on top of all, I will recommend if you are doing any thing serious with it which involves money it is much better to get help form some one who is good at it and have experience with it.

Cheers

[NilamDoc]

Thank you buysellbitco.in for sharing your experience.

[18dew]

I Would go with Django web framework using python as req would be for scaling in long term as well as keeping ground level track of each and every request and response happening on the server and yet faster than PHP and relativly less complex and buggy then java.

[Amitabh S]

Anyone know any good combinations to replace PHP MySQL mainly for web dev?

Looking for something with wide developer support.

You should also have a look at JDBC/MySQL and NoSQL databases  (example mongo-db).

Mongolab is a company offering free mongodb as a service, which has a REST API, so you can operate the db by sending simple HTTP requests.
https://mongolab.com/welcome/

[NilamDoc]

I am using MongoDB without any problems in my PHP Lithium framework. The document concept keeps all the records in JSON and hence easy for us to query.

[Benson Samuel]

I Would go with Django web framework using python as req would be for scaling in long term as well as keeping ground level track of each and every request and response happening on the server and yet faster than PHP and relativly less complex and buggy then java.

I agree with this.  Been spending some time with Python. I thin it is awesome.

[StLucifer]

I Would go with Django web framework using python as req would be for scaling in long term as well as keeping ground level track of each and every request and response happening on the server and yet faster than PHP and relativly less complex and buggy then java.

I agree with this.  Been spending some time with Python. I thin it is awesome.

Python is amazing... With very little programming background, I managed to learn enough in 3 months to write a full fledged GUI Map generator for a board game..
I currently use python for pretty much everything -> from simple calculations to some simple text processing, and some small scripts for personal use.

One thing i was working on was a small python script that queries buysellbitco.in AND mtgox.com, every few minutes, and outputs the Market price, time stamp, and Effective USD/Re exchange rate.

I noticed that the price varies from around 59.0 to about 60.8 Rs/Usd ....
Simple things like this can help in timing an order with buysellbitco.in to get a better exchange rate (although in this case, its just a difference of Rs 1.8 ).
Took about n hour to write, test, debug and have it up and running without problems. Ran it for about a week before I got bored.

If Python is on the cards, I would love to contribute, although I would rate myself as an intermediate level programmer.

[Benson Samuel]

PHP MySQL web wallet libraries for Coinbase and Blockchain.

Examples and full code.

https://github.com/bensonsamuel/bitcoinweblibraries.git

[Benson Samuel]

Love PHP

https://bitcointalk.org/index.php?topic=181189

[assortmentofsorts]

Love PHP

https://bitcointalk.org/index.php?topic=181189

Ummm heard of Node.JS? http://nodejs.org.

[Benson Samuel]

Love PHP

https://bitcointalk.org/index.php?topic=181189

Ummm heard of Node.JS? http://nodejs.org.

Yes, but don't you think it is a bit of overkill for simple web apps? I do not mind learning it if there is a real need for it.

[assortmentofsorts]

Love PHP

https://bitcointalk.org/index.php?topic=181189

Ummm heard of Node.JS? http://nodejs.org.

Yes, but don't you think it is a bit of overkill for simple web apps? I do not mind learning it if there is a real need for it.

Node.JS is the easiest to get started with. A simple HTTP server in node is just 5 lines Its is mean't only for web apps!

[Benson Samuel]

Anyone played with the BTCChina API as yet?

I have looked at the trades data https://data.btcchina.com/data/trades
and the orderbook https://data.btcchina.com/data/orderbook

But unable to find the relevant ask and bid prices in the mess.

Anyone have an idea?

Edit

Please ignore. Found what I was looking for.