<p>Have a look to these data sources:</p>

<ul>
<li><a href="https://bitcointalk.org/index.php?topic=1023190" rel="nofollow noreferrer">https://bitcointalk.org/index.php?topic=1023190</a></li>
<li><a href="https://github.com/petertodd/python-bitcoinlib/blob/master/examples/publish-text.py" rel="nofollow noreferrer">https://github.com/petertodd/python-bitcoinlib/blob/master/examples/publish-text.py</a></li>
</ul>

<p>And of course the "modern" (and cheapest) way is storing arbitrary data in <strong>segwit part</strong> of transactions. I do not know is there ready tool for it, but it is not very difficult to write it.</p>

<blockquote>
  <p>Is there a newer website/service that supports me putting data into the blockchain? </p>
</blockquote>

<p><a href="https://cryptograffiti.info/" rel="nofollow noreferrer">https://cryptograffiti.info/</a> (based on bitcoin cash blockchain)</p>

CC BY-SA 3.0
2018-03-29T20:27:52.373Z
2018-03-29T20:27:52.373Z
amaclin
<p>According to <a href="https://bitcoin.stackexchange.com/questions/1881/how-can-a-non-miner-store-data-in-the-block">this post</a>, I can store arbitrary data in the blockchain (as the news about "child pornography in the blockchain" tell).
Now I want to store "Hello World" in the blockchain.</p>

<p>Is there a newer website/service that supports me putting data into the blockchain?
And what's the difference between a transaction in the blockchain and such a "message"?
Is the structure different? Why could those researchers even find out that it's inappropriate content instead of a default transaction?</p>

CC BY-SA 3.0
2018-03-29T16:26:10.573Z
"Is there a newer website/service that supports me putting data into the blockchain? " I know something in the ethereum platform. According to their whitepaper they allow us to store a message in ethereum blockchain. I didn't tried yet. https://lovecoin.online/
Prayag k
CC BY-SA 3.0
2018-03-29T18:23:43.770Z
I know that it works on the ethereum chain and I do also know how it works there. Solidity makes it easy. But the bitcoin blockchain seems to be different.
hardfork
<transactions><blockchain><message>
How to store arbitrary data in the bitcoin blockchain and how can I differentiate between a transaction an those data?
hardfork
# How to store arbitrary data in the bitcoin blockchain and how can I differentiate between a transaction an those data?

(Asked by: username_0 on 2018-03-29)

According to [this post](https://bitcoin.stackexchange.com/questions/1881/how-can-a-non-miner-store-data-in-the-block), I can store arbitrary data in the blockchain (as the news about "child pornography in the blockchain" tell).
Now I want to store "Hello World" in the blockchain.

Is there a newer website/service that supports me putting data into the blockchain?
And what's the difference between a transaction in the blockchain and such a "message"?
Is the structure different? Why could those researchers even find out that it's inappropriate content instead of a default transaction?

**Tags:** transactions, blockchain, message

> **Comments:**
> **username_1**: "Is there a newer website/service that supports me putting data into the blockchain? " I know something in the ethereum platform. According to their whitepaper they allow us to store a message in ethereum blockchain. I didn't tried yet. https://lovecoin.online/  
> **username_0**: I know that it works on the ethereum chain and I do also know how it works there. Solidity makes it easy. But the bitcoin blockchain seems to be different.  

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## 1 answers

### Answer by username_2 on 2018-03-29. Score: 3 | Accepted answer

Have a look to these data sources:

* <https://bitcointalk.org/index.php?topic=1023190>
* <https://github.com/petertodd/python-bitcoinlib/blob/master/examples/publish-text.py>

And of course the "modern" (and cheapest) way is storing arbitrary data in **segwit part** of transactions. I do not know is there ready tool for it, but it is not very difficult to write it.

> Is there a newer website/service that supports me putting data into the blockchain?

<https://cryptograffiti.info/> (based on bitcoin cash blockchain)


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