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Author Topic: Android Bitcoin Client Bounty (1740 BTC pledged)  (Read 43007 times)
Mike Hearn
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April 16, 2011, 09:44:51 AM
 #101

The fee is there to ensure all Market participants have been through the Google credit card anti-fraud system (which is pretty good). The point is to try and raise the bar for people uploading malicious or illegal apps.

It's not there to make a profit for Google, which is in no need of the poxy amounts of cash generated by it.
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April 16, 2011, 05:38:59 PM
 #102


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Is BitCoiner available via the Market ?

No. Since its not finished Im to cheap for the 25$ Android market fee ( which i find ridicolous considering google also collects a sales percentage :-)



Wait, do free apps have to pay this fee also?

The fee is a single, one-time $25 per person/organization. (Contrast this with Apple's $99 per YEAR.) The fee is charged whether you intend publish free or paid apps. Personally I paid it long ago and haven't published a thing yet, though I will be soon.

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molecular
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May 13, 2011, 12:23:03 AM
 #103

what's up with this?

does the bounty still hold?

1740 quite some money nowadays, noone up to this task? Andreas Schildbach's Wallet (for testnet) was almost there, wasn't it? (crashes my phone, but used to work just fine couple weeks ago)

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May 13, 2011, 01:12:17 AM
 #104

what's up with this?

does the bounty still hold?

1740 quite some money nowadays, noone up to this task? Andreas Schildbach's Wallet (for testnet) was almost there, wasn't it? (crashes my phone, but used to work just fine couple weeks ago)

It does for me, and my previously stated conditions, to my stated bitcoin amount.  When I pledged it, 50 bitcoins was a tip.  Now it's a day's wages.

"The powers of financial capitalism had another far-reaching aim, nothing less than to create a world system of financial control in private hands able to dominate the political system of each country and the economy of the world as a whole. This system was to be controlled in a feudalist fashion by the central banks of the world acting in concert, by secret agreements arrived at in frequent meetings and conferences. The apex of the systems was to be the Bank for International Settlements in Basel, Switzerland, a private bank owned and controlled by the world's central banks which were themselves private corporations. Each central bank...sought to dominate its government by its ability to control Treasury loans, to manipulate foreign exchanges, to influence the level of economic activity in the country, and to influence cooperative politicians by subsequent economic rewards in the business world."

- Carroll Quigley, CFR member, mentor to Bill Clinton, from 'Tragedy And Hope'
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May 13, 2011, 08:00:33 AM
 #105

I completely forgot about this for a while. Given the expected short-to-medium term value of Bitcoin, I think I'm going to revisit it. Though the OP should perhaps be updated to show that part of the bounty has already been paid out.

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May 13, 2011, 08:28:18 AM
 #106

I had the impression someone was working on the client, albeit slowly. The problem seems to be the blockchain and RAM usage.
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May 13, 2011, 09:07:37 AM
 #107

I had the impression someone was working on the client, albeit slowly. The problem seems to be the blockchain and RAM usage.

I'm not sure a full-fledged node is even the goal here, is it?

I'll pledge 400 make that 800, and would even pay if it's just a nice Android/iPhone web app BUT it must be runnable on one's own server, not linked to its own service.

"runnable on one's own server" sounds to me like it's simply a rpc client, no?

Can the pledgers please clear this up?

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May 13, 2011, 01:03:25 PM
 #108

I had the impression someone was working on the client, albeit slowly. The problem seems to be the blockchain and RAM usage.

I'm not sure a full-fledged node is even the goal here, is it?

I'll pledge 400 make that 800, and would even pay if it's just a nice Android/iPhone web app BUT it must be runnable on one's own server, not linked to its own service.

"runnable on one's own server" sounds to me like it's simply a rpc client, no?

Can the pledgers please clear this up?

Different pledges have different requirements.  An android remote control client has been developed, and I believe has been paid out.  Mine has not.

"The powers of financial capitalism had another far-reaching aim, nothing less than to create a world system of financial control in private hands able to dominate the political system of each country and the economy of the world as a whole. This system was to be controlled in a feudalist fashion by the central banks of the world acting in concert, by secret agreements arrived at in frequent meetings and conferences. The apex of the systems was to be the Bank for International Settlements in Basel, Switzerland, a private bank owned and controlled by the world's central banks which were themselves private corporations. Each central bank...sought to dominate its government by its ability to control Treasury loans, to manipulate foreign exchanges, to influence the level of economic activity in the country, and to influence cooperative politicians by subsequent economic rewards in the business world."

- Carroll Quigley, CFR member, mentor to Bill Clinton, from 'Tragedy And Hope'
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May 20, 2011, 08:56:58 AM
 #109

I've been inquired about this by my employer if this is viable, and I am pondering going for it making it open-source.

I've hacked together a semi-working prototype based on bitcoinj, however ran into obvious technical difficulties - bitcoinj is too fat and inefficient to the point i couldnt make a transaction.
After compiling bitcoind, the client was not able to verify (rescan) whole chain tx by tx in reasonable time, not to mention necessary use of sdcard.
The state in which code is now, no android device is up to the task except very hiend ones.

Following changes are needed to be made:
Trusting the blockchain to be correct from some point of time and start from specific merkle root is a neccessity, this should not be a problem as more than week-spanning tree forks are unlikely.
From there on, incoming txes are processed, stored locally only as blockheaders with possible forks in a backlog which gets consumed into the merkle root.

This is as lite it gets, is reasonably secure, easy on bandwith, and seems it will work on all ranges of androids way down to the severely lacking HTC Dream.

However blockheaders (https://github.com/bitcoin/bitcoin/tree/blockheaders) and complete tx/wallet rewrite are necessary to cater for performance.

Starting from where it is now this is work at least for 2 months. Should i take the bounty, at the current rate I wouldn't go below 2500BTC.

Recommendation to the pledgers: split the tasks to smaller bounties (worth ~1500-2000BTC IMO):
1) separate protocol code from bitcoin client into a library, include "lite" operation as an option, to avoid hacks pegged on the back of bitcoin client (umaintainable mess)
2) make it efficient to run on underpowered devices
3) write an easy JNI binding bitcoinj style

The android frontend is a matter of 500BTC, no more. Same goes for iPhone.

therapist

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Mike Hearn
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May 20, 2011, 09:20:32 AM
 #110

As has been noted several times, BitCoinJ is not ready for use on Android yet. We know how to make it efficient enough for use on phones and the code to do that is coming.

No bounties needed. Just patience. By the way there are at least two other people working on Android GUIs for the library.
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May 20, 2011, 09:49:15 AM
 #111

As has been noted several times, BitCoinJ is not ready for use on Android yet. We know how to make it efficient enough for use on phones and the code to do that is coming.
Glad to hear it! Will keep an eye on it, though I'm not entirely convinced of from-the-scratch implementations (thus the call for JNI).


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Mike Hearn
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May 20, 2011, 01:56:09 PM
 #112

The official client won't work on Android either. It loads the block chain at startup in the same way BitCoinJ currently does.
Vandroiy
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May 20, 2011, 04:46:27 PM
 #113

Can the 800 BTC pledgers please clear up which have been paid out? And how much there is to gain right now?

As to everyone else, please add to the bounty. I think this android client is really important. The open source mentality is nice and all, but we shouldn't rely on people working for free too much, especially now that time is of the essence. We're missing out on all those android fans who read about Bitcoin now, many would surely join if they had a full client.
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May 20, 2011, 05:19:58 PM
 #114

Agreed. It appears that half the bounty was already paid, which really dampened my enthusiasm for working on this.

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MoonShadow
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May 20, 2011, 06:01:53 PM
 #115

Can the 800 BTC pledgers please clear up which have been paid out? And how much there is to gain right now?

Mine has not been paid out...

"By local transactions, I assume a minimum capability of a local wallet.dat, the ability to use bu.mp (or similar) to transfer addresses, and the ability to create transactions in the absence of working Internet access.

I pledge 50 under these conditions"

I'm going to add a new condition, the system needs to be working on my Samsung Intercept by July, or I'm cutting my pledge in half.  This pledge has turned into a large chunk of what I have left.

"The powers of financial capitalism had another far-reaching aim, nothing less than to create a world system of financial control in private hands able to dominate the political system of each country and the economy of the world as a whole. This system was to be controlled in a feudalist fashion by the central banks of the world acting in concert, by secret agreements arrived at in frequent meetings and conferences. The apex of the systems was to be the Bank for International Settlements in Basel, Switzerland, a private bank owned and controlled by the world's central banks which were themselves private corporations. Each central bank...sought to dominate its government by its ability to control Treasury loans, to manipulate foreign exchanges, to influence the level of economic activity in the country, and to influence cooperative politicians by subsequent economic rewards in the business world."

- Carroll Quigley, CFR member, mentor to Bill Clinton, from 'Tragedy And Hope'
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May 30, 2011, 02:30:16 AM
 #116

Just throwing it in there that if I ever get some time I'd love to take this on. I been wanting to dip my feet in the Android waters and I'm starting to get into this idea of Bitcoins.
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May 30, 2011, 03:32:51 AM
 #117

Can the 800 BTC pledgers please clear up which have been paid out? And how much there is to gain right now?

As to everyone else, please add to the bounty. I think this android client is really important. The open source mentality is nice and all, but we shouldn't rely on people working for free too much, especially now that time is of the essence. We're missing out on all those android fans who read about Bitcoin now, many would surely join if they had a full client.

Free software is for creating community. It does not mean zero pay.

Open source is for bug fixing.

Making it GPL / BSD will not hurt funding, and increased competition will reduce fears of big players in the end everybody makes more even if it isn't the whole pie.

Proposal: http://forum.bitcoin.org/index.php?topic=11541.msg162881#msg162881
Inception: https://github.com/bitcoin/bitcoin/issues/296
Goal: http://forum.bitcoin.org/index.php?topic=12536.0
Means: Code, donations, and brutal criticism. I've got a thick skin. 1Gc3xCHAzwvTDnyMW3evBBr5qNRDN3DRpq
sandos
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May 30, 2011, 08:15:51 PM
 #118

Getting closer: http://code.google.com/p/bitcoinj/source/detail?r=89

Smiley
Vandroiy
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June 02, 2011, 07:12:54 PM
 #119

This is awesome, bitcoinj appears to be on a good way to finish the job!

This might become the main Bitcoin client. Java is much more suited for this kind of thing anyways. (I'd prefer C# even more, but for some reason all the people prefer Oracle and its patent shit to Mono.)

Anyways, I have a problem now. So many people are working on this now, I don't know whom we should pay the bounty to when they finish!

Edit: I hope the 800-pledges don't chicken out now, just because it's about 8000 USD? I want to see those brave souls granting us android support credit! I can't wait to start paying random android users in BTC! Grin
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June 03, 2011, 07:30:23 AM
 #120

I believe some of this ransom was already payed?
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