Understanding Nxt
In 2013
a blockchain launched, the first original codebase after Bitcoin.
A 100% Proof-of-Stake cryptocurrency 2.0 with inbuilt smart contracts.
It has run stable and advanced ever since and inspired most of what you see traded on CMC today.
The Genesis
SNAPSHOT - Nxt, unsurpassable blockchain solutions
An introduction to the Nxt blockchain ecosystem - the history, technology, community and visions
“Nxt is an easy tool to integrate with other software solutions, thus being the perfect solution for each business need”.
~ Roberto Capodieci, blockchain expert, CEO - DeBuNe.org
E-book package
.pdf
.epub
.mobi
228 pages, released in January 2017.
https://twitter.com/AvdiuSazan/status/1051044180963876864
Nxt was really important to bring the Crypto Ecosystem to the next level. It was the first real innovation after all this BTC-Clones and also first PoS-only-Crypto. The overall impact was massive and without Nxt most likely no IOTA, Lisk, Waves, Tezos, Byteball, Qora or Komodo.
— Marc Bettinger (@altcoindad) August 29, 2018
What's the deal, NXT?
Airdrops? Snapshots? Clones? Confused? The Nxt source code is released under an open source "crypto" license, JPL, which requires cloners to allocate 10% of their tokens to NXT holders.
What is the JPL?
JPL stands for Jelurida Public License – an open source license similar to the popular GNU GPLv2 and GNU GPLv3 open source licenses. Both Nxt and Ardor software are released under the JPL.
What is the main difference between the JPL and the GPL?
The main difference is that the JPL has a 10% airdrop requirement. This means that clones of Nxt will have to allocate 10% of their tokens to NXT holders proportionately to their account balances and clones of Ardor will have to give away 10% of the forging tokens (their parent chain tokens) to IGNIS holders proportionately to their account balances. The account balances shall be based on a snapshot take not earlier than three months before the launch of the clone.
This is duplicate content, BTW. Let's have another quote:
Are there any other important differences between the JPL and the GPL?
Yes, other important difference is that, as a consequence of the 10% Airdrop requirement, internal use (a private or permissioned clone) is not allowed except for an evaluation purposes no longer than three months. This is because a private/permissioned blockchain clone cannot fulfill the Airdrop requirement.
Source
There are, of course, more questions, and also more answers in that link. Get the full JPL text (and context) here.
Nxt is released under the Jelurida Public License
– an open source license similar to the popular GNU GPLv2 and GNU GPLv3.
Clones of Nxt allocate 10% of their tokens to NXT holders proportionately to their account balances.
The account balances shall be based on a snapshot taken not earlier than three months before the launch of the clone.
RYA
Snapshot: November 16, 2018
Launch date: December 25, 2018
Whitepaper
Website: https://ryacoin.io
APOLLO
Snapshot: January 14, 2018
Launch date: June 14, 2018
Further info
Website: https://apollocurrency.com
ACTIONCOIN
Snapshot: February 2018
Launch date: March 1, 2018
Further info
Website: https://actioncoin.com/
XENDBIT
Snapshot: Unknown
Launch: Likely as an Ardor child chain
Whitepaper
Website: https://xendbit.io
Build decentralized applications on the Nxt blockchain platform
“Rather than providing smart contracts, NXT is focused on implementing important use cases and functions directly into the core of both Nxt and Ardor. This approach has proven to be scalable and secure and will become more so when Ardor is released.” ~ Riker, Nxt and Ardor core developer