NXTER.ORG

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.

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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

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

METRO

Snapshot block: 1894000
Launch date: July 6, 2018

Further info
Website: https://metrodex.org

APOLLO

Snapshot: January 14, 2018
Launch date: June 14, 2018

Further info
Website: https://apollocurrency.com

HEBE

Not under JPL.
Launch date: 2018

Further info
Website: http://hebeblock.com

MOTIVE

Snapshot: May 2018
Launch date: May 2018

Further info
Website: https://motive.network/

ESI

Snapshot: Unknown
Launch date: Unknown

Further info
Website: http://treecoins.org/esi-platform

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

HEAT

Pre-JPL
Launch date: January 26, 2017

Further info
Website: https://heatledger.com/

NEM

Pre-JPL
Launch date: 2014

Further info
Website: https://nem.io

BURST

Pre-JPL
Launch date: 2014

Further info
Website: https://www.burst-coin.org

WAVES

Pre-JPL
Launch date: March 2017

Further info
Website: https://wavesplatform.com/

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