Launched ICO cryptocurrencies after bitcoin

Litecoin

In the year 2011, right after Bitcoin waslaunched, litecoin was also launched.

For quite some time, it was seen as prime competition for Bitcoin in regards

to the space it would fill in users’ lives. The coin gets its name from the fact that it operates similarly to Bitcoin, but generates blocks more quickly and can therefore perform transactions more quickly. Litecoin runs on an

open source global payment network and is decentralised.

Zcash

Zcash and Monero are both based around the ideaof having superior levels

of privacy, but do it in different ways.This strengthens security and

proves privacy. Zcash takes Bitcoin and adds in an additional ability to shield your transactions. Right now it is all too easy for the flow of funds to be tracked through the Bitcoin ecosystem. There are no safeguards in place to protect users from having their financial history available to all.

This has been developed through an open source protocol that makes all currency fungible. What this means is every coin is treated as equal and there is no differentiating them, so no one can ever track or discriminate against a certain coin. This solves a lot of problems for people who inadvertently end up with Zcash coins that were stolen, but also makes the cryptocurrency act a lot more like cash.

Despite being one of the youngest cryptocurrency representatives, Zcash is steadily growing in popularity.

Monero

Monero was launched in 2014 in much the same way as Bitcoin. The lead 

developer has never come forward, just like with Bitcoin, which creates 

a solid mythology around the coin’s invention and emphasis on privacy.

Most token sales are for open source projects.

For example Golem's token sale, which raised $8.6 million worth of ETH, is for

the Golem Network, the software for which is open source:https://github.com/

golemfactory/golem. The tokens give usersaccess to the open source application,

once it's created. Before ether was launched, its code was also made open source.

In the year 2013, Ripple also made their codes open source.

Reasons why your code should be open source

1.    Customization:

Open source codes can easily be customized or accessed to meet the user’s needs. The user can spot possible liabilities/drawbacks which can occur in the future as a result of underlying problems with the code or method of payment, which you can easily curtail before the release of your tokens. It also allows for idea contributions and open suggestions. The community often contributes to your code by reporting bugs, or even submitting proposed fixes.

2.            Bug Fixing:

All software releases contain bugs. Making your code open source give you the advantage of users spotting bugs you missed. As a large number of users can access your codes, bugs tend to be easily visible and rapidly corrected.