¿Cuál fue la primera Altcoin?

Namecoin is an experimental open-source technology which improves decentralization, security, censorship resistance, privacy, and speed of certain components of the Internet infrastructure such as DNS and identities.

(For the technically minded, Namecoin is a key/value pair registration and transfer system based on the Bitcoin technology.)

Bitcoin frees money – Namecoin frees DNS, identities, and other technologies.

Ixcoin is an open source digital currency, based on the cryptocurrency Bitcoin, which is distributed over a peer-to-peer network to offer irreversible, low-cost, anonymous and decentralized monetary transactions. Ixcoin is thefirst Bitcoin clone or Alternative chain, created in May 2011 just a few weeks after the distributed DNS Namecoin. Today, there exists many Bitcoin clones.

Ixcoins are the unit of currency of the Ixcoin system. Similarly to Bitcoin's BTC, a commonly used shorthand for this is “IXC” to refer to a price or amount (eg: “100 IXC”). An Ixcoin isn't tangible. It is just a number associated with a Ixcoin Address, which is a string of 33 numbers and letters which begin with the letter x such as xa9jpgHugb2pTCpzoZcDdiHKepy8mjpddX. See also an easy intro to bitcoin.

How does SolidCoin differ from Bitcoin?
Faster transaction processing
Protection against pump-n-dump by large pools
Twice daily difficulty retargets
3 minute blocks, 32 SolidCoins per block
Maximum coin generation of 18.9 million (18900000) to be reached by ~2022
Fixed transactions fees instead of unknown variable fees in BTC
Interface improvements
JSON API improvements
Different address format


But do we need an alternative to Bitcoin?
The answer is simply YES! Bitcoin itself has shown that P2P cryptocurrencies can work and can be relatively secure when it comes to only owners of the coins using them. However it is far from perfect.

As Bitcoin itself and other similar chains have seen, there are numerous vulnerabilities and issues in the protocol, including :-
Slow transaction speeds, often making waiting for confirmations unbearable
Near complete shutdown of network due to pump-n-dumps by large operators
Transaction fee nightmares, no way of knowing what a fee will be until you've tried to send funds
Concentration of Bitcoins into elitist early adopters that have no interest or desire to help Bitcoins be used by "normal" people

Cita de Forobitcoins

Creo que fue Litecoin

Cita de Musil

Namecoin apareció en abril de 2011, mientras que Litecoin en octubre, siendo un fork de Tenebrix [TBX].

Cita de Forobitcoins

Tendras razon, siempre he pensado que fue litecoin, en el 2011 no le hacia mucho caso a las alts, la verdad