the main innovation of cryptocurrency is that you can keep this digital record on all the computers on a peer to peer network without having to rely on a central authority to prevent any of the peers from double spending their balance.
A purely peer-to-peer version of electronic cash would allow online payments to be sent directly from one party to another without going through a financial institution. Digital signatures provide part of the solution, but the main benefits are lost if a trusted third party is still required to prevent double-spending. We propose a solution to the double-spending problem using a peer-to-peer network.
cryptocurrency is software that keeps a record of transactions denominated in money created by that software.
whatever measuring tool the participants in a monetary order agree to use, gold or a transaction in a digital ledger, to make a record of how much value they exchange with each other, that tool retains the value it records.
Bitcoin Cash was created when Bitcoin developers had a dispute about the best way to scale the network to meet rising demand. Some developers and miners hard-forked the bitcoin blockchain by increasing the number of transactions that a single block can support in the process creating a new ledger with a very similar set of rules.
Ripple is actually a company, but they created a cryptocurrency called XRP. XRP is pre-mined meaning all coins were created at once and then distributed or sold to various parties. XRP solves the double-spend problem differently than bitcoin, there is no proof of work. Whereas Bitcoin's origins are philosophically opposed to existing financial infrastructure and bitcoinattempts to route around it, Ripple and XRP are aimed at improving existing financial infrastructure via cryptocurrency tech.
Ethereum extends bitcoin by incorporating a more complete, easier-to-use, but less secure programming language to implement smart contracts. Ethereum trades security for ease of use because of this developers have chosen it as the platform on which to launch the first decentralized applications sometimes with associated initial coin offerings.
A token sale is like a crowdfunding campaign, except it uses the technology behind Bitcoin to verify transactions. Oh, and tokens aren’t just stand-ins for stock—they can be set up so that instead of a share of a company, holders get services, like cloud storage space, for example. Below, we run down the increasingly popular practice of launching an ICO and its potential to upset business as we know it.
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 Texas, for instance, 116 people are currently serving life sentences on charges of simple drug possession. Seven of those people earned their sentences for possessing quantities of drugs weighing between 1 gram and 4 grams, or less than a typical sugar packet.
On any given day in the United States, at least 137,000 peoplesit behind bars on simple drug-possession charges, according to a report released Wednesday by the American Civil Liberties Unionand Human Rights Watch.
Nearly two-thirds of them are in local jails. The report says thatmost of these jailed inmates have not been convicted of any crime: They're sitting in a cell, awaiting a day in court, an appearance that may be months or even years off, because they can't afford to post bail.
Reliable statistics on the number of drug-related murders in the United States are hard to come by. A 1994 Department of Justice report suggested that between a third and a half of U.S. homicides were drug-related, while a recent Center for Disease Control study found that the rate varied between 5% and 25% (a 2002 Bureau of Justice report splits the difference). Part of this variance is that "drug-related" murders are hard to define. There are murders committed by people on drugs, murders committed by addicts to get money for drugs, turf-war murders by drug suppliers, and murders committed by gangs whose principal source of income is drug sales.