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For this reason, it’s helpful to look to other resources to get a glimpse of where things stand. UseBitcoin is a directory with entries for more than 5, businesses and retailers; nearly all of them accept bitcoin, but the large majority don’t accept other digital currencies. Coinmap suggests that businesses in New York City currently accept bitcoin payments. Some of these work exclusively with bitcoin, even going so far as to house their own bitcoin ATMs.
In the Czech Republic, Nguyen says, “we have been witnessing wider acceptance of cryptocurrencies. Places that have accepted bitcoin [in the past] started accepting litecoin or ethereum.
There are even ATMs which offer bitcoin cash. Though, bitcoin is still dominant. The Darkcoin devs created a tool called DarkSend. DarkSend is an implementation of coinjoin an anonymity feature originally implemented in Bitcoin  which utilizes the Darkcoin network to organize the coinjoins. If DarkSend becomes open source and is useful, it will be ported to Bitcoin with a few small modifications. These changes won’t be a hardfork, they will likely involve the masternodes being paid by those they are coinjoining for rather than the block reward, which is already possible and implemented for Bitcoin.
For this reason, DarkSend would work better if the masternodes were paid by those they were helping coinjoin, or if there wasn’t a masternode at all and everyone collaborated in a decentralized fashion.
The better implementation not vulnerable to tragedy of the commons is compatible with Bitcoin, therefore, the Darksend protocol serves no purpose.
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Demographic Based Premined Cryptocurrencies This is a new class of altcoin that is targeted at a certain demographic. All of these cryptocurrencies have a large premine intended to be paid to members of that demographic. Ultimately, all of these coins have suffered or are suffering their fate of an immediate sell off after the ” airdrop ” term for distribution of coins to the target demographic begins.
These cryptocurrencies aren’t government initiatives, but are independently created for that demographic. Useful Cryptocurrencies A cryptocurrency is useful if it accomplishes a task that Bitcoin cannot.
Acting as a keystore for things like decentralized domain registration. Having demmurage or some other economic system that is one of the prohibited changes. Allowing creation of and transmission of digital assets.
Litecoin differs from Bitcoin in three ways: Litecoin uses scrypt algorithm instead of Bitcoins SHA which was designed to eliminate the use of typical ASIC miners and make it more profitable for users with regular computing hardware.