300 BTC Coding Contest: Distributed Exchange (MasterCoin Developer Thread)

[dexX7]

To the admins of mastercoin-explorer.com, masterchest.info, masterchain.info and mymastercoins.com:

Please take a look at transaction:

https://blockchain.info/tx/e1633c9e0515cb027a6f2736bec02f0de8753e6b7c3303597ac01582de2d7041

It was rendered as invalid due to insufficient balance. To quote the spec:

Amount to transfer = 100,000,000 (1.00000000 Mastercoins) (64-bit unsigned integer, 8 bytes, should not exceed number owned, but if it does, assume user is transferring all of them)

How do you plan to handle such things in the future?

Balance of 15og4WXZPwkMnnsb3dj6HqgTUfcRLx4J9b: 364.84328263 TMSC, tried to send: 9999.0 TMSC to 1xC6gPa4QTM18cPKKPutcEkfmZvabY38j.

[Bitoy]

To the admins of mastercoin-explorer.com, masterchest.info, masterchain.info and mymastercoins.com:

Please take a look at transaction:

https://blockchain.info/tx/e1633c9e0515cb027a6f2736bec02f0de8753e6b7c3303597ac01582de2d7041

It was rendered as invalid due to insufficient balance. To quote the spec:

Amount to transfer = 100,000,000 (1.00000000 Mastercoins) (64-bit unsigned integer, 8 bytes, should not exceed number owned, but if it does, assume user is transferring all of them)

How do you plan to handle such things in the future?

Balance of 15og4WXZPwkMnnsb3dj6HqgTUfcRLx4J9b: 364.84328263 TMSC, tried to send: 9999.0 TMSC to 1xC6gPa4QTM18cPKKPutcEkfmZvabY38j.

Good point. Based on white paper it should be a valid sell order for 364.84328263 tmsc. I'll update mymastercoins.

[Bitoy]

alright, after purchasing some TMSC on the DEx yesterday, I tried creating then canceling (by posting a new offer with amount 0) a sell offer with the address 1B4dzdSTt8p1qfMba4MTPUvABDXDYTHT2S


on mymastercoin I see only the (correct) TMSC balance

In mymastercoins when a sell offer is cancelled it will be removed from the sell offer listing.  I'll probably add a view previous sell offer so that it  can be verify as cancelled.

[dacoinminster]

Thanks for the reports guys. It looks like we have reports from the following people (in order received):

For the dev pot:

Zathras https://bitcointalk.org/index.php?topic=292628.msg4657707#msg4657707
Bitoy https://bitcointalk.org/index.php?topic=292628.msg4659090#msg4659090
Grazcoin https://bitcointalk.org/index.php?topic=292628.msg4663395#msg4663395
Grimentz https://bitcointalk.org/index.php?topic=292628.msg4664542#msg4664542
cmlacy https://bitcointalk.org/index.php?topic=292628.msg4667601#msg4667601
Tachikoma https://bitcointalk.org/index.php?topic=292628.msg4668290#msg4668290
Marvschneider https://bitcointalk.org/index.php?topic=292628.msg4668412#msg4668412
azmenthe https://bitcointalk.org/index.php?topic=292628.msg4670303#msg4670303
fthoughts https://bitcointalk.org/index.php?topic=292628.msg4678460#msg4678460


For the testing pot:

Zathras https://bitcointalk.org/index.php?topic=292628.msg4657707#msg4657707
Bitoy https://bitcointalk.org/index.php?topic=292628.msg4659090#msg4659090
Grazcoin https://bitcointalk.org/index.php?topic=292628.msg4663395#msg4663395
Grimentz https://bitcointalk.org/index.php?topic=292628.msg4664542#msg4664542
Jakecnn https://bitcointalk.org/index.php?topic=292628.msg4664847#msg4664847
Tachikoma https://bitcointalk.org/index.php?topic=292628.msg4668290#msg4668290
Marvschneider https://bitcointalk.org/index.php?topic=292628.msg4668412#msg4668412
Bebopzzz https://bitcointalk.org/index.php?topic=292628.msg4668580#msg4668580
azmenthe https://bitcointalk.org/index.php?topic=292628.msg4670303#msg4670303
Atriz https://bitcointalk.org/index.php?topic=292628.msg4674956#msg4674956
Mastream https://bitcointalk.org/index.php?topic=292628.msg4678403#msg4678403

(fthoughts you don't qualify for this payout, but I hope you will participate big time in the second half and win some BTC). Sorry fthoughts. I thought you were just some random newb trying to look like you were involved. Curtis just informed me that you are an integral part of the team joining us from engine.co - my apologies!

If your name is listed in either pot above, I need a payment address for you in BTC, AND an address to pay you dev MSC (PLEASE don't destroy your MSC by using a web wallet like Coinbase or MtGox) AND I need your opinion on how the money should be split up in both pots (note that I do not weight all opinions equally, but every opinion matters). Please leave yourself out of the distribution, as if you were not participating. Only think in terms of percentages, and the contributions of each person relative to the rest. Please send your opinion via PM or email (don't post it here!)

Once I have received Addresses and opinions from at least the biggest contributors (but hopefully all of you), I can plug them in to a big spreadsheet, announce the final distribution, and start payouts. I apologize if I am slow on any of this, as I need to finish strong here at Cozi so I am very busy right now.

Thanks everyone.

[grazcoin]

Hey I am starting that thread for guys who want to help testing
Mastercoin using masterchain.info. Will be glad to cooperate with
any of you.

Roman

Thank you Roman for opening a testing thread https://bitcointalk.org/index.php?topic=428798 for https://masterchain.info

For easier testing, the following features were added:

• https://masterchain.info/index.html?currency=TMSC&filter=sell (linked from orderbook)
• https://masterchain.info/index.html?currency=TMSC&filter=accept (for testers use)

And as for your request, errors of Prepare (both for send and accept pages) are shown next to prepare button.
This way you could easily report them.
The general ERROR message will still appear if something really funny happened, and then I'll check my logs ...

[marcelus]

Hey I am starting that thread for guys who want to help testing
Mastercoin using masterchain.info. Will be glad to cooperate with
any of you.

Roman

Thank you Roman for opening a testing thread https://bitcointalk.org/index.php?topic=428798 for https://masterchain.info

For easier testing, the following features were added:

• https://masterchain.info/index.html?currency=TMSC&filter=sell (linked from orderbook)
• https://masterchain.info/index.html?currency=TMSC&filter=accept (for testers use)

And as for your request, errors of Prepare (both for send and accept pages) are shown next to prepare button.
This way you could easily report them.

Nice idea Roman.

I've done a few hours work over the last few days but didn't submit it as I don't feel I deserve anything from this round compared to what other people have done. I hope to qualify for the next round though!

[grazcoin]

New features on https://masterchain.info

• Offline signing
  
  • Visit https://masterchain.info/offlinesign.html
  • Save Page As ... to an offline location
  • Copy & paste the required fields from an online computer to the offline one
  • Sign offline
  • Copy & paste to online blockchain.info/pushtx
• Orderbook
  
  • https://masterchain.info/index.html?currency=TMSC&filter=sell
• Last deals
  
  • https://masterchain.info/index.html?currency=TMSC&filter=accept
• Human readable errors
  
  • e.g. Not enough bitcoin funds on address

[grazcoin]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Grazcoin's address for 300 BTC bounty part 1 is:
1BgGDZTvD2P6wU9emZtkAY3v13qrX8FiHY
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0mSwqiDW6Zb/F3suhJx7oQDr3nXfA2uk+c0K9Gx/MAEX8DNa/Z/JqQOEdrYHC41+
xaiB7bEsaf83nTn2JQHBv+ycuhl+ePqSkrr6oFBKv+Vt+yUFh0awBgqWafOZ0jqA
3mJMG+4qXArVP260Q8gtcMm3RN4t8wy++vSZhxw1qAssyyti60ub042CaaR/nHfx
EPCB1r35aChOw5wlFcUWsdTXFVvTySxueFxDORFn0gAOkbO/sy+nqHlkB/bZ7Acu
U56YIPe4tJ1q31YqATJj19yhegjlOVCmo9A9qFdJekag9MnP9qkkSgKH3GzNid4=
=jcu/
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[dacoinminster]

Similar to last time, nearly everybody tries to get out of the evaluation phase, saying they trust me to be fair. Unfortunately, this is not an option, unless you want to withdraw from the contest. It's an important part of the process, painful though it is.

I've received complete evaluations from a few of you, but I'm still waiting on quite a few. I'm not letting anybody opt out of the evaluation phase - sorry!

[btcven]

• Testing installation in OSX and simple send of Mastercoin wallet
• Reported discrepancy between mastercoin-explorer.com and masterchain.info in simple send.

I don't know if I qualify for cents of the bounty with this, but the address (BTC and MSC) is the same linked in both sites were discrepancy was reported.


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512


MasterCoin testing

1rdyat8oxM33EUHBaGPvEUBiBgAvXHe5M

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Comment: GPGTools - http://gpgtools.org

iQEcBAEBCgAGBQJS5lDsAAoJED+0xWlW2PMs9FcH/j80lAWlqqXQJ7xwm26rWIjY
BlTU27iq26YNnzZMBLeSHhb63kccz3/7CxM6HJUzqciGHUp+uJhVqHhOKUph6v3/
/Lsw1TcX+w+KJ2xTLaYHXA9S+BSut0AL7IgHfbws3hVwizW9ZbgA1ldRTS6LKp2X
5eJZ8PEVSd3YWM05/9sRVgMBr031f0CmRq0Bs4F5H2xnkCJkJcSPcpLpx9seHiff
LalkpGGkJ4PK6Z+yO/sgmiOSCFXS8PRv5nbtNatXbjPyyr0qtUoXz4k+6IMHK+la
33ANtSjh8usb/M+bZKJTLW0fYu1TK4gWRVbQupZIPvvV94Ei3lWNbi0+/tbCXnY=
=ZfGP
-----END PGP SIGNATURE-----

[dacoinminster]

As of now, I believe I have all the feedback I need from everyone in order to calculate payouts.

Please be patient with me as I labor over my spreadsheet. There are a hilarious number of inconsistencies I have to normalize between your individual judging styles. Some of you put a ton of effort in to the evaluations, and others very little. Some of you left people out completely, or put people in the wrong category, or gave me numbers which didn't add up to 100%. Most of you were pretty biased towards the people you worked with the most, but hopefully those biases balance out.

I think probably the only people who will consider the final payout "fair" will be the testers, some of whom will make a pretty impressive hourly rate for the time they put in

Thanks!

[grazcoin]

As of now, I believe I have all the feedback I need from everyone in order to calculate payouts.

Please be patient with me as I labor over my spreadsheet. There are a hilarious number of inconsistencies I have to normalize between your individual judging styles. Some of you put a ton of effort in to the evaluations, and others very little. Some of you left people out completely, or put people in the wrong category, or gave me numbers which didn't add up to 100%. Most of you were pretty biased towards the people you worked with the most, but hopefully those biases balance out.

I think probably the only people who will consider the final payout "fair" will be the testers, some of whom will make a pretty impressive hourly rate for the time they put in

Thanks!

As the mastercoin protocol and mastercoin foundation is all about transparency and consensus, I think also the judging should follow that approach.
Please consider writing the algorithm that you use (words are enough, but for sure code is preferred), and all participants could put the evaluations openly online - then the calculation will be totally transparent.

[Tachikoma]

Developers:

I've pushed the new verification API online for Mastercoin-explorer (example). Could you guys let me know once you have also done this so I can add you to my DEx consensus checker?

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Tachikoma's BTC/MSC address is 1JmGrSP6m9XcbuMxBbHk1rGVbr39Er7CxA.
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Version: GnuPG v1.4.12 (Darwin)

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76ZqrfasIhqX3Hn113O2+FSDLvbJWw2X9nqP79yYrFpvUS2TkHAG8Tkm8yGjbQ4F
WkYakwSNwtL11jOkh1FjupqC9nGwMziwX+A/rzN25OSnZF+tzaitbKiweGNAxsc=
=1tPs
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[dacoinminster]

Here is are the numbers for the distribution:

Contestant	Dev %	Testing %	Total BTC	@ $800 per BTC
Zathras	22.97%	11.96%	28.9467	$23,157
Bitoy	17.79%	13.73%	24.6565	$19,725
Grazcoin	19.87%	16.96%	28.3514	$22,681
Grimentz	6.89%	10.79%	12.2887	$9,831
Jakecnn	0.00%	2.98%	1.4905	$1,192
Cmlacy	2.87%	1.11%	3.4226	$2,738
Tachikoma	24.39%	17.33%	33.0540	$26,443
Marvshneider	1.73%	8.96%	6.2104	$4,968
Bebopzzz	0.00%	3.30%	1.6513	$1,321
Azmenthe	1.95%	4.15%	4.0279	$3,222
Atriz	0.00%	5.02%	2.5120	$2,010
Mastream	0.00%	3.06%	1.5310	$1,225
Fthoughts	1.54%	0.64%	1.8570	$1,486
Total	100%	100%	150	$120000

As the mastercoin protocol and mastercoin foundation is all about transparency and consensus, I think also the judging should follow that approach.
Please consider writing the algorithm that you use (words are enough, but for sure code is preferred), and all participants could put the evaluations openly online - then the calculation will be totally transparent.

I'll give it a shot. For this contest (and the last one), I followed the following steps:

• Normalize all feedback to fix those which don't add to 100%
• Attempt to determine how careful each person's feedback was (i.e. the same % for everyone is not very careful, but different percentages for each person with detailed comments on how you chose those percentages is very careful)
• Weight each person's feedback by how careful they were
• Get a percentage for each person based on the combined weighted feedback
• Perform a second pass through weighting step, changing each person's grade for themselves from zero to the result from the first pass

That last step fixes a problem where if you do a fantastic job grading other people you would have gotten slightly penalized for it, since your feedback doesn't give anything to yourself but is being counted heavily toward the final score.

I'm sure everybody would have their own way of doing this, but I hope this is close to fair!

I hope to do these payments tomorrow in BTC. I have a lot of figuring to do before I can do the MSC-payments across all bounties to date, but that will come next.

Thanks everyone!

[prophetx]

Dev update #4

it is mainly a consolidation of JRs award methodology, the award amounts and mostly copy/paste of some of the stuff on this board with some cutting/edits (i tried to compress it but there was so many items).  I have to think of a better way to do these updates. 

http://blog.mastercoin.org/2014/01/29/development-update-4-master-protocol-wallet-and-distributed-exchange-milestone/

[grazcoin]

Here is are the numbers for the distribution:

Contestant	Dev %	Testing %	Total BTC	@ $800 per BTC
Total	100%	100%	150	$120000

As the mastercoin protocol and mastercoin foundation is all about transparency and consensus, I think also the judging should follow that approach.
Please consider writing the algorithm that you use (words are enough, but for sure code is preferred), and all participants could put the evaluations openly online - then the calculation will be totally transparent.

I'll give it a shot. For this contest (and the last one), I followed the following steps:

• Normalize all feedback to fix those which don't add to 100%
• Attempt to determine how careful each person's feedback was (i.e. the same % for everyone is not very careful, but different percentages for each person with detailed comments on how you chose those percentages is very careful)
• Weight each person's feedback by how careful they were
• Get a percentage for each person based on the combined weighted feedback
• Perform a second pass through weighting step, changing each person's grade for themselves from zero to the result from the first pass

That last step fixes a problem where if you do a fantastic job grading other people you would have gotten slightly penalized for it, since your feedback doesn't give anything to yourself but is being counted heavily toward the final score.

I'm sure everybody would have their own way of doing this, but I hope this is close to fair!

I hope to do these payments tomorrow in BTC. I have a lot of figuring to do before I can do the MSC-payments across all bounties to date, but that will come next.

dacoinminster - thank you for the hard calculation work, and thank everyone else for the mutual efforts behind those bounties.

I still think that automated calculation (code) could really improve the process - it would be more clear how things are done, and it will save the bounties maintainer hard work for each of the next distributed bounties.

As for transparency - I would rather seeing how each person evaluates me, and show how I evaluate them. This only makes things more efficient and direct. It would be another step away from centralization.
In the future we could even use mastercoin protocol to automate the evaluation & calculation. Every participant could send coins to other participants (these can be some evaluation coins), and then the monthly evaluation code could gather these numbers and give a clear cut updated result.

Regarding the MSC-payments - please avoid sending many class A payments directly from exodus. It would be better to send all monthly MSC payments to some external address, and from that address to pay using multiple class B transactions to all. Let's take care of the utxo space.

[dacoinminster]

Here's the table with payout addresses:

Contestant	Dev %	Testing %	Total BTC	@ $800 per BTC	BTC address	MSC address
Zathras	22.97%	11.96%	28.9467	$23,157	1DrYXscsbMxhQMvvCmK7aVppbJGhr3RRSN	1Px5ruEuWdtvkG3AJ1sJ8Q7ckV8B1f3us5
Bitoy	17.79%	13.73%	24.6565	$19,725	14cn7BiyzUeMcddC3RUFk77Z2k8NcP66yf	14cn7BiyzUeMcddC3RUFk77Z2k8NcP66yf
Grazcoin	19.87%	16.96%	28.3514	$22,681	1BgGDZTvD2P6wU9emZtkAY3v13qrX8FiHY	1BgGDZTvD2P6wU9emZtkAY3v13qrX8FiHY
Grimentz	6.89%	10.79%	12.2887	$9,831	128MGmQKtKUPf66w2w9eaGc7YBqLrcnLx5	1rM1oMEFMfhPBo4kRaf2CMXf9XQCHyYWi
Jakecnn	0.00%	2.98%	1.4905	$1,192	1KDFVCw6GMVWeFUrdogGSXQiyjXZ8QWS3T	1KDFVCw6GMVWeFUrdogGSXQiyjXZ8QWS3T
Cmlacy	2.87%	1.11%	3.4226	$2,738	19TwBziBeCb4VnrZgJasJukwRKNSVvDp7Y	13pm7cmA5vVpKkDLJCvqh26kcp6V6PJ1Aq
Tachikoma	24.39%	17.33%	33.0540	$26,443	1JmGrSP6m9XcbuMxBbHk1rGVbr39Er7CxA	1JmGrSP6m9XcbuMxBbHk1rGVbr39Er7CxA
Marvshneider	1.73%	8.96%	6.2104	$4,968	18aSfFtNQ6N6xurmBKNTCG7c6xLy8EUuy7	1PKKRfHgvfZi2ToZDKkKrCUFpvuVKHz9WV
Bebopzzz	0.00%	3.30%	1.6513	$1,321	17mtHCwN6yQcWGBFQAkWvHQZgtvUFwZYh1	1GmsjoERUACUwAsjKSLhSekH8EeXLRWKku
Azmenthe	1.95%	4.15%	4.0279	$3,222	1EdtK7EkErgeU17qRuifxASA2yMoxibxYv	1AQBeWsRfbHst7NojYdt42MZThcR4jy8fk
Atriz	0.00%	5.02%	2.5120	$2,010	1LjT88X7Zu8BdbqJw8vfRa83NJuzYL9kqm	1LjT88X7Zu8BdbqJw8vfRa83NJuzYL9kqm
Mastream	0.00%	3.06%	1.5310	$1,225	16HM4xYc6BWP5Say7acFPKtt9cjvTrCxmb	16HM4xYc6BWP5Say7acFPKtt9cjvTrCxmb
Fthoughts	1.54%	0.64%	1.8570	$1,486	1JJ6e9iWjGgEnCQRivKvdfNjRTgYVaKtWy	1MMF42zk8f4TqoV1QFeia18bb14rBHXzAU
Total	100%	100%	150	$120000

I'll give you guys until tomorrow to correct any incorrect address above. Hopefully I didn't mix any up!

I can do the 150 BTC payout with the info above, but I need MSC addresses from cmlacy, grazcoin, and grimentz (or confirmation that your BTC address are Mastercoin-compatible).

Thanks!

[dacoinminster]

Hey JR, I'd just need to make a slight correction to the addresses. I've generated a new one just for MSC:

1MMF42zk8f4TqoV1QFeia18bb14rBHXzAU

Thanks JR.

Updated the list. Please check. Thanks!

[grazcoin]

Here's the table with payout addresses:

Contestant	Dev %	Testing %	Total BTC	@ $800 per BTC	BTC address	MSC address
Grazcoin	19.87%	16.96%	28.3514	$22,681	1BgGDZTvD2P6wU9emZtkAY3v13qrX8FiHY	(NEED MSC ADDRESS)

I'll give you guys until tomorrow to correct any incorrect address above. Hopefully I didn't mix any up!

I can do the 150 BTC payout with the info above, but I need MSC addresses from cmlacy, grazcoin, and grimentz (or confirmation that your BTC address are Mastercoin-compatible).

Thanks!

Grazcoin's BTC address is MSC compatible.

[dacoinminster]

Grazcoin's BTC address is MSC compatible.

Updated. Thanks!

Also updated MSC address for cmlacy, received by email