<p><a href="http://ethereum.org/" rel="nofollow noreferrer">Ethereum</a> does not have a messaging system by default but, because it is programmable and you can store arbitrary data in the blockchain (more exactly, in a Merkle tree whose root is in the blockchain), you can develop it fairly easily.</p>

<p>It is actually a very common "my first Ethereum program", just after "hello, world" : <a href="http://jonathanpatrick.me/blog/ethereum-smtp" rel="nofollow noreferrer">http://jonathanpatrick.me/blog/ethereum-smtp</a> <a href="https://ethereum.stackexchange.com/questions/1205/how-can-ethereum-be-used-to-send-messages-between-connected-machines">https://ethereum.stackexchange.com/questions/1205/how-can-ethereum-be-used-to-send-messages-between-connected-machines</a> <a href="https://github.com/ethereum/wiki/wiki/Whisper" rel="nofollow noreferrer">https://github.com/ethereum/wiki/wiki/Whisper</a> and many many others</p>

CC BY-SA 3.0
2016-07-23T14:54:08.977Z
2016-07-23T14:54:08.977Z
2017-04-13T13:01:01.667Z
bortzmeyer
<p>check out: <a href="https://nxtwiki.org/wiki/Arbitrary_Messages" rel="nofollow noreferrer">https://nxtwiki.org/wiki/Arbitrary_Messages</a></p>

<blockquote>
  <p>The NXT Messaging system allows you to send and receive data on the
  NXT Blockchain, thus allowing any Nxt account holder to communicate
  directly with all other account holders.</p>
  
  <p>Messages can be attached to any Nxt transaction, making bookkeeping
  easy, as you can tag all your transactions with a description. Project
  developers can use the Messaging system to embed machine-readable data
  within an Nxt transaction. This allows automated functions by reading
  the data sent to you on the blockchain.</p>
  
  <p>Messaging is securely encrypted by default, but text or data can also
  be sent unencrypted.</p>
</blockquote>

<p><a href="https://i.sstatic.net/6JO2G.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/6JO2G.png" alt="enter image description here"></a></p>

CC BY-SA 3.0
2016-07-22T17:31:49.400Z
2016-07-22T17:31:49.400Z
Patoshi パトシ
<p>I'm looking to compile a list of altcoins with plaintext transaction messaging embedded into the blockchain. If anyone knows of a coin that fits the bill then please share.</p>

CC BY-SA 3.0
2016-04-11T12:13:11.887Z
I have found OpenSourceCoin and Florincoin, we want to use TX messaging in our own private coin but neither of these coins have a proper commit history. Anyone know a TX messaging coin with decent source code history?
NachoCheese
<altcoin><transaction-messaging>
Altcoins with plaintext transaction messaging
NachoCheese
# Altcoins with plaintext transaction messaging

(Asked by: username_0 on 2016-04-06)

I'm looking to compile a list of altcoins with plaintext transaction messaging embedded into the blockchain. If anyone knows of a coin that fits the bill then please share.

**Tags:** altcoin, transaction-messaging

> **Comments:**
> **username_0**: I have found OpenSourceCoin and Florincoin, we want to use TX messaging in our own private coin but neither of these coins have a proper commit history. Anyone know a TX messaging coin with decent source code history?  

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## 2 answers

### Answer by username_1 on 2016-07-23. Score: 0

[Ethereum](http://ethereum.org/) does not have a messaging system by default but, because it is programmable and you can store arbitrary data in the blockchain (more exactly, in a Merkle tree whose root is in the blockchain), you can develop it fairly easily.

It is actually a very common "my first Ethereum program", just after "hello, world" : <http://jonathanpatrick.me/blog/ethereum-smtp> <https://ethereum.stackexchange.com/questions/1205/how-can-ethereum-be-used-to-send-messages-between-connected-machines> <https://github.com/ethereum/wiki/wiki/Whisper> and many many others


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### Answer by username_2 on 2016-07-22. Score: 0

check out: <https://nxtwiki.org/wiki/Arbitrary_Messages>

> The NXT Messaging system allows you to send and receive data on the
> NXT Blockchain, thus allowing any Nxt account holder to communicate
> directly with all other account holders.
>
> Messages can be attached to any Nxt transaction, making bookkeeping
> easy, as you can tag all your transactions with a description. Project
> developers can use the Messaging system to embed machine-readable data
> within an Nxt transaction. This allows automated functions by reading
> the data sent to you on the blockchain.
>
> Messaging is securely encrypted by default, but text or data can also
> be sent unencrypted.

[![enter image description here](https://i.sstatic.net/6JO2G.png)](https://i.sstatic.net/6JO2G.png)


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