The logs—hundreds of which were available for download on the Immigrations and Customs Enforcement web site despite containing extremely sensitive personal information—call to mind the efforts of closed societies like East Germany or Cuba to cultivate vast networks of informants and an atmosphere of fear and suspicion.
Taking advantage of the cheap and plentiful hydroelectric power that an army of computers require, bitcoin mining is spreading in remote parts of China’s Sichuan province. In dark and isolated warehouses, bitcoin mining machines hum along solving equations to produce the highly valued cryptocurrency.
Cryptography or cryptology[a] is the practice and study of techniques for secure communication in the presence of third parties called adversaries. More generally, cryptography is about constructing and analyzing protocols that prevent third parties or the public from reading private messages;
the main reason for the enthusiasm of the Zcash tech is, indeed, Equihash’s resistance to ASIC mining.
“Equihash is a memory-oriented Proof-of-Work, which means how much mining you can do is mostly determined by how much RAM you have,” said Wilcox and Grigg. “We think it is unlikely that anyone will be able to build cost-effective custom hardware (ASICs) for mining in the foreseeable future.”
Medical cannabis, or medical marijuana, is cannabis and cannabinoids that are prescribed by doctors for their patients. The use of cannabis as a medicine has not been rigorously tested due to production restrictions and other governmental regulations. Limited evidence suggests cannabis can: reduce nausea and vomiting during chemotherapy, improve appetite in people with HIV/AIDS, and reduce chronic pain and muscle spasms.
In the case of minuteman missile launch crews, once a launch order is received, both operators must agree that it is valid by comparing the authorization code in the order against a Sealed Authenticator (a special sealed envelope which holds the code). These Sealed Authenticators are stored in a safe which has two separate locks. Each operator has the key to only one lock, so neither can open the safe alone. Also, each operator has one of two launch keys; once the order is verified, they must insert the keys in slots on the control panel and turn them simultaneously.
It's often said that good currencies have inherent utility. Bitcoin has no inherent utility. There's nothing useful about some bits on your computer with a bunch of leading zeroes. Nobody can turn that into food unless there's an economy that has decided to add value to said bits. And this works pretty well, but it would be better if we could turn those bits into food without needing an economy that recognizes those bits as valuable.
The gold specie standard arose from the widespread acceptance of gold as currency. Various commodities have been used as money; typically, the one that loses the least value over time becomes the accepted form. Chemically, gold is of all major metals the one most resistant to corrosion.