Nxt Arbitrary Messaging

Nxt Arbitrary Messages were implemented at a block height of 40,000 blocks. This feature allows Nxt users to send small amounts of data through the decentralized network.

The term "message" is loose: this feature can be used to send simple text messages, but can also be used to send up to 1000 bytes of any data. As a result, it can be used to build file-sharing services, decentralized applications, and higher-level Nxt services.