16.4 Updated unknown network hashrate

0. Introduction
Yesterday's post presented some of the larger unknown generation addresses. I put up a small bounty, and as a result of that and some investigations of my own I was able to attribute one address to Cloudhashing.com, and about one hundred and fifty addresses to Picostocks 100TH (well, now called 500TH) Mine.

1. Details
The Cloudhashing address information was first posted on Reddit, pointing to this Bitcointalk post as evidence, which I followed a bit further to confirm the claim that 1ALA5v7h49QT7WYLcRsxcXqXUqEqaWmkvw does belong to Cloudhashing.com, and the bounty for this address was paid.

I spent some time reading the Picostocks 100TH Mine thread and found a few addresses there, and then looked through all the transactions here for generating addresses, and found one hundred and fifty five.

I retabulated and recharted the data, and I have new addresses for the bounty, below.

Firstly, the unknown block generating addresses from last week:

Table 1: Blocks solved by unknown sources from block 278637 to 279989

Unknown recurring generation address	Blocks solved	Percentage of network	Estimate of hashrate
12NQ9qYw1fgzVxsyKuqhtrwjtQbtXzKjGZ	8	0.59 %	81 Thps
1E8EAM4rhaf26HXBwdBDq3oDRdNRHRLUs7	7	0.52 %	71 Thps
1Km2nEyMbqKnVMgvagvsHRKzWkhzii2F4d	4	0.30 %	40 Thps
13pvTTLbmczB41FCaeQbw2BVjCJ56LQnY8	2	0.15 %	20 Thps
1469rzFK961FrqYzmRGoT7GpS67xrGmsG1	2	0.15 %	20 Thps
112huURL2PYeXkPJWqc3hbYfTW4zArRo3z	1	0.07 %	10 Thps
12rnxZ86teHGatmbYocJyG2ZMbctW4UD2o	1	0.07 %	10 Thps
13yDMpKTR7WMdgJiVRuMoav79iGrxxwY4m	1	0.07 %	10 Thps
14wZLVupV2gzoVuG9x1o2FTfsLoBiY6zPi	1	0.07 %	10 Thps
15XNJhktijnnPYxmSpfkBjvqNpEWpYtVQ7	1	0.07 %	10 Thps
17GMsFitBy1dRBH5Vn25Z6dvRZM555U896	1	0.07 %	10 Thps
17VxqSZa3rZqMuZcqH7gSpq4P6jZ9sVzh1	1	0.07 %	10 Thps
19aQoq4bGqBcTi4ioEJrhPMERHQeWvDHAo	1	0.07 %	10 Thps
19qH7jNKjXmvpkCXkj3FcPEn23teXTtNPi	1	0.07 %	10 Thps
19ZW3fBKpLo3Lm3hrfrzeBzfpSKW25u6vT	1	0.07 %	10 Thps
1AEmc5quPSLFCwKwMfqxfdFfPy7g7GLC5u	1	0.07 %	10 Thps
1BD8v6xjykBU6G9jzq2XKvQoCNfDgK4e6t	1	0.07 %	10 Thps
1BwaTta4L5KMoK2q4wH1XjcUMhqALPAm7n	1	0.07 %	10 Thps
1Bwqy8P8iLg8dgfntnWpfKLECwLHvFAGBP	1	0.07 %	10 Thps
1CmWuAmdywf3dJfmsPyB6B7njoFvAJnjdB	1	0.07 %	10 Thps
1CX8aLv8JBybLidqeE3fuJoCmidG8YBPEY	1	0.07 %	10 Thps
1DbGp9rxWKPsicZYXJvK9c61bQGvfopaYa	1	0.07 %	10 Thps
1DcB8BuYcLhL7iK9nTkot3kNChznwHPc41	1	0.07 %	10 Thps
1EbWwbtUkqFv1kwt3NWLdTnGPWgNWCXbs3	1	0.07 %	10 Thps
1FvkzxZRPFMjGLcTs92GCDwnGDoAUi8p7z	1	0.07 %	10 Thps
1GRBcP1GxgsQRRGxfzEFbJz8Em5dLjp3oo	1	0.07 %	10 Thps
1GWAE3U9BtqLdktQWzjMLWm3Yuff2HZ8Ms	1	0.07 %	10 Thps
1JAeJDmPaWuuAHutxgfGAhADYogqC9bbk5	1	0.07 %	10 Thps
1JsRQ7JKfozm4uHwtQWxs8JuNvtvhM8mxm	1	0.07 %	10 Thps
1Jt2UpX4aEMFXupUNy9TWdUAMFh3DiCbJw	1	0.07 %	10 Thps
1M4E8fKJh2zdKHD6R77bRNXTZJVcHSZgMj	1	0.07 %	10 Thps
1MxhAjcf7vwH4vXwqbjU26Wn7dyGwgEN8k	1	0.07 %	10 Thps
1PL2sBwHtKXc22dsrTWFRxL49RYKQV4xz9	1	0.07 %	10 Thps
1PMvKZkwpBCvtxcm3vWQ4Mu166qabSjpnm	1	0.07 %	10 Thps
1PqbvfdKWmNLM48fihPF4R8xNnHGVeeCq6	1	0.07 %	10 Thps
Total	53	3.92 %	534 Thps

So the proportion of unknowns is now down to 3.92%, less than half of what it was. These generation addresses are at most 0.59% of the network, and at that rate may simply be privately owned.

The all time top ten now has room for two more:

Table 2: Blocks solved by unknown sources for entire blockchain

Unknown recurring generation address	Blocks solved	Percentage of all solved blocks	Maximum hashrate, Thps	Date of maximum hashrate
19fbcmiSmxHGjyBDG2on5Qgfnvxs8ukdNz	709	0.25 %	1.39	2013-04-21
1JQR7BM3g1p83eXT9EqwsecvfNhDDzQefx	503	0.18 %	0.829	2012-05-27
17w9uVZuPgsY7iLBVGB7qTZ1ZiZnTJKHLq	209	0.07 %	0.192	2013-04-28
1BxD2VLE95n7ZeVJSy3uoiJ5WdR72jWj5f	193	0.07 %	9.29	2013-09-29
1JTZHBdrDnFaVvuV43sd2oiwDmzUPfa3Ws	193	0.07 %	0.128	2012-10-07
1MxipvUHfKaZzWVrCGhrLKVPtNxwESRoq2	100	0.04 %	0.353	2012-02-12
1L9FE9cgwJnvVs8ZUHrorAmwF7HDrKrP8r	84	0.03 %	0.979	2013-07-14
14b5MW9Aizj9ccs1UQAacgcRzkS8KXh7Ww	72	0.03 %	1.12	2013-07-21
1AYTkpQDA2nu6vu6JjZvbDgMXa1SjehVYu	71	0.03 %	11.1	2013-11-03
1LZExNUYPxs4d4cU6gKStQkdwvKd3VA9Lb	59	0.02 %	0.188	2012-11-11
Total	2193	0.78 %	-	-

The chart now looks a little different for the last half of 2013, too (update on right).





















2. Bounty update
So, with those changes, the current bounty list is now:

Unknown generation address	Bounty for identification
19fbcmiSmxHGjyBDG2on5Qgfnvxs8ukdNz	0.005 btc
1JQR7BM3g1p83eXT9EqwsecvfNhDDzQefx	0.005 btc
17w9uVZuPgsY7iLBVGB7qTZ1ZiZnTJKHLq	0.005 btc
1BxD2VLE95n7ZeVJSy3uoiJ5WdR72jWj5f	0.005 btc
1JTZHBdrDnFaVvuV43sd2oiwDmzUPfa3Ws	0.005 btc
1MxipvUHfKaZzWVrCGhrLKVPtNxwESRoq2	0.005 btc
1L9FE9cgwJnvVs8ZUHrorAmwF7HDrKrP8r	0.005 btc
14b5MW9Aizj9ccs1UQAacgcRzkS8KXh7Ww	0.005 btc
1AYTkpQDA2nu6vu6JjZvbDgMXa1SjehVYu	0.005 btc
1LZExNUYPxs4d4cU6gKStQkdwvKd3VA9Lb	0.005 btc
12NQ9qYw1fgzVxsyKuqhtrwjtQbtXzKjGZ	0.005 btc
1E8EAM4rhaf26HXBwdBDq3oDRdNRHRLUs7	0.005 btc
1Km2nEyMbqKnVMgvagvsHRKzWkhzii2F4d	0.005 btc
13pvTTLbmczB41FCaeQbw2BVjCJ56LQnY8	0.005 btc
1469rzFK961FrqYzmRGoT7GpS67xrGmsG1	0.005 btc

I think the first two on the list are pools, but I'm not sure which. Good luck, everyone!


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Find a typo or spelling error? Email me with the details at organofcorti@organofcorti.org and if you're the first to email me I'll pay you per ten errors:

Please refer to the most recent blog post for current rates or rule changes.

I'm terrible at proofreading, so some of these posts may be worth quite a bit to the keen reader.
Exceptions:

• Errors in text repeated across multiple posts: I will only pay for the most recent errors rather every single occurrence.
• Errors in chart texts: Since I can't fix the chart texts (since I don't keep the data that generated them) I can't pay for them. Still, they would be nice to know about!

I write in British English.

<sixteenpoint>