October 2012 - cypherpunks-legacy

[liberationtech] Privacy & activism talks at Hackmeet 3.0
by Eugen Leitl 19 Oct '12

19 Oct '12

----- Forwarded message from Steve Weis <steveweis(a)gmail.com> -----

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19 Oct '12

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19 Oct '12

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[HacDC:Byzantium] October development sprint.
by Eugen Leitl 18 Oct '12

18 Oct '12

----- Forwarded message from The Doctor <drwho(a)virtadpt.net> -----

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17 Oct '12

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78 percent of Bitcoin currency stashed under digital mattress, study finds
by Eugen Leitl 17 Oct '12

17 Oct '12

http://arstechnica.com/tech-policy/2012/10/78-percent-of-bitcoin-currency-s… 78 percent of Bitcoin currency stashed under digital mattress, study finds Significantly fewer digital coins are in circulation than previously presumed. by Dan Goodin - Oct 17, 2012 12:00 pm UTC Enlarge / A long chain of Bitcoin transactions, showing each address putting aside a small number of digital coins, helps illustrate a finding that 78 percent of them remain dormant in "savings accounts." Dorit Ron, Adi Shamir More than three-quarters of the digital coins in the Bitcoin digital currency scheme aren't circulating because they remain dormant in user accounts that have never participated in outgoing transactions, a recently published study has found. The figure translates to more than 7.019 million BTCs, the term used to denote a single coin under the digital currency, which uses strong cryptography and peer-to-peer networking to enable anonymous payments among parties who don't necessarily know or trust each other. Based on exchange rates listed on Mt.Goxbthe most widely used Bitcoin exchangebthe coins have a value of more than $82.87 million. On May 13, the date the researchers analyzed their data, there were slightly more than 9 million BTCs in existence. Mathematician Dorit Ron and Adi Shamir (the "S" in the widely used RSA cryptography scheme) arrived at that finding by downloading the entire Bitcoin history and following the trail of some 180,000 transactions. They found there were about 3.12 million accounts, which are known as "addresses" in Bitcoin parlance. They belonged to about 1.5 different owners, on average, since there's no limit on how many addresses a single individual may possess. More than 609,000 of those addresses had received a significant portion of the outstanding BTCs without once making a payment. "However, if we sum up the amounts accumulated at the 609,270 addresses which only receive and never send BTCs, we see that their owners have actually put aside in some kind of 'saving accounts' 7,019,100 BTCs, which are almost 78 percent of all existing BTCs," the researchers wrote. Almost 60 percent of those coins were "old," meaning they were received more than three months prior to the May 13 cut-off date for the project. "This means that there are much fewer BTCs in circulation than previously presumed," the researchers continued. "Yet, the total number of Bitcoins participating in all the transactions since the establishment of the system (except for the actual minting operations) is 423,287,950 BTCs. This implies that each coin which is in circulation had to be moved a much larger than expected number of times." The report, titled Quantitative Analysis of the Full Bitcoin Transaction Graph, isn't the first time researchers have analyzed the full available history of Bitcoin transactions. A paper presented earlier this year by Fergal Reid and Martin Harrigan, demonstrated how it's possible to identify some Bitcoin users despite some of the scheme's anonymity features. Research presented at last year's Chaos Computer Club conference also showed how to defeat Bitcoin anonymity. Ron and Shamir's research, by contrast, analyzes transaction history to answer questions about how typical account holders use the Bitcoin system and how they acquire and spend the digital coin. In addition to discovering that the vast majority of BTCs don't circulate, the new paper also found that almost all large Bitcoin transactions stem from a single payment made almost two years ago. They made that finding despite apparent attempts by the account holders involved to obfuscate their actions. The researchers started by mining the history for data that identified when two or more addresses belonged to the same owner. They then isolated transactions involving 50,000 BTCs or more and analyzed when the amounts were accumulated and spent. "We discovered that almost all these large transactions were the descendants of a single large transaction involving 90,000 Bitcoins which took place on November 8th 2010, and that the subgraph of these transactions contains many strange looking chains and fork-merge structures, in which a large balance is either transferred within a few hours through hundreds of temporary intermediate accounts, or split into many small amounts which are sent to different accounts only in order to be recombined shortly afterwards into essentially the same amount in a new account. The discovery that so little of the currency is actually in circulation could have implications for the future of the Bitcoin system. It's unclear what might happen if large amounts of those reserves were to begin trading suddenly. It wouldn't be surprising to see such an influx cause a decline in the value of each coin, similar to a 90-percent decline experienced last year.

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Обязанности работодателя по миграционному учету
by "Миграционная служба" 17 Oct '12

17 Oct '12

> ТРУДОУСТРОЙСТВО ИНОСТРАНЦЕВ. > ОПС иностранных работников. > М И Г Р А Ц И О Н Н Ы Й У Ч Е Т 29 октября 2012 года в Санкт-Петербурге *7\8I2\ 6Ч2 * 86 * 95 --------------------------------------------------- Программа конференции: - Правовое положение иностранных работников: пребывание и проживание. - Регистрация иностранных работников. - Миграционный учет иностранных работников и лиц без гражданства в РФ. - Трудоустройство иностранных граждан. - Миграционный учет высококвалифицированных специалистов. - Обязательное пенсионное страхование иностранных работников. - Обязанности иностранного работника перед работодателем в области миграционного учета, фиксируемые в трудовом договоре. - Миграционный учет при направлении иностранца в командировку или служебную поездку. По вопросам участия и регистрации обращайтесь по телефону: + 7[8I2] 6.4.2_8.6_9.5 --- С уважением, Жданова Диана Викторовна Менеджер отдела обучения тел.: +7 /8I2/ 6Ч2=86=95

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[liberationtech] Pakistan drone report talk in Baltimore/D.C.?
by Eugen Leitl 17 Oct '12

17 Oct '12

----- Forwarded message from Yosem Companys <companys(a)stanford.edu> -----

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nice BitCoin paper from big-gun names
by Eugen Leitl 17 Oct '12

17 Oct '12

http://eprint.iacr.org/2012/584.pdf

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Порядок трудоустройства иностранных граждан
by "Начальник управления миграционной служб ы" 17 Oct '12

17 Oct '12

> ТРУДОУСТРОЙСТВО ИНОСТРАНЦЕВ. > ОПС иностранных работников. > М И Г Р А Ц И О Н Н Ы Й У Ч Е Т 29 октября 2012 года в Санкт-Петербурге *7\8I2\ 6Ч2 * 86 * 95 --------------------------------------------------- Программа конференции: - Правовое положение иностранных работников: пребывание и проживание. - Регистрация иностранных работников. - Миграционный учет иностранных работников и лиц без гражданства в РФ. - Трудоустройство иностранных граждан. - Миграционный учет высококвалифицированных специалистов. - Обязательное пенсионное страхование иностранных работников. - Обязанности иностранного работника перед работодателем в области миграционного учета, фиксируемые в трудовом договоре. - Миграционный учет при направлении иностранца в командировку или служебную поездку. По вопросам участия и регистрации обращайтесь по телефону: + 7[8I2] 6.4.2_8.6_9.5 --- С уважением, Жданова Диана Викторовна Менеджер отдела обучения тел.: +7 /8I2/ 6Ч2=86=95

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