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Author Topic: ♥♥♥ Save your Valentine's Day message on block chain ♥♥♥  (Read 800 times)
Hyena
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February 14, 2017, 04:05:43 PM
 #1

Check out http://cryptograffiti.info/
It allows you to save any message or up to 50 KiB files/pictures on the Bitcoin's block chain.

People have also used it to store wedding photos on the block chain.

Here are some of the messages that were written TODAY:

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waterboyserver
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February 14, 2017, 05:42:00 PM
 #2

Thanks for sharing this op <3 Love this stuff!
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February 14, 2017, 06:20:20 PM
 #3

i like it Smiley Smiley Smiley Smiley Smiley Smiley

Read the Bible everyday!!!
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February 14, 2017, 06:40:14 PM
 #4

I'll it only when I'll be engaged!
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February 14, 2017, 07:05:13 PM
 #5

https://inthebitcoin.com/#/ is a nice site tooo.

Sample : https://inthebitcoin.com/s/1E7ngZdoDSkbhYt28Zw5tSNLzHLrZtmiX1

Gameunits We're enabling the 2 billion unbanked Gamers to shop on any online merchant.
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February 14, 2017, 08:35:33 PM
 #6

That's a good idea. Because, you know, blockchain bloat is good for everyone.  Roll Eyes
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February 14, 2017, 08:39:18 PM
 #7

Thanks for sharing this wonderful idea!

K&T Crypto Hosting, hosting as low as $45/kW per month ($0.06/kWh): https://bitcointalk.org/index.php?topic=1794057.0








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February 14, 2017, 09:52:48 PM
 #8

Check out http://cryptograffiti.info/
It allows you to save any message or up to 50 KiB files/pictures on the Bitcoin's block chain.

People have also used it to store wedding photos on the block chain.

Do they show in blockchain.info as a message attached to a transaction or just in that website?
Hyena
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February 14, 2017, 10:25:59 PM
 #9

Check out http://cryptograffiti.info/
It allows you to save any message or up to 50 KiB files/pictures on the Bitcoin's block chain.

People have also used it to store wedding photos on the block chain.

Do they show in blockchain.info as a message attached to a transaction or just in that website?

The messages show also in https://bitcoinstrings.com/ however it might not show unicode messages, not sure

so far I am aware of only cryptograffiti that is able to decode images and other media.

blockchain.info can show the messages only as hex strings when you enable advanced mode, for example this transaction:
https://blockchain.info/tx/6bc09d676028100f3b678182297cdd733fa8671bd28263e87d99b6344bc704eb?show_adv=true

In the end it shows
OP_DUP OP_HASH160 576174657220697320626c75650a4d656c6f6e73 OP_EQUALVERIFY OP_CHECKSIG
OP_DUP OP_HASH160 20617265207265640a736f6d657468696e67736f OP_EQUALVERIFY OP_CHECKSIG
OP_DUP OP_HASH160 6d657468696e670a49206c6f766520796f750a2d OP_EQUALVERIFY OP_CHECKSIG
OP_DUP OP_HASH160 205361756d656e73636800000000000000000000 OP_EQUALVERIFY OP_CHECKSIG

so when you concatenate 576174657220697320626c75650a4d656c6f6e73, 20617265207265640a736f6d657468696e67736f, 6d657468696e670a49206c6f766520796f750a2d and 205361756d656e73636800000000000000000000 you will get this:
576174657220697320626c75650a4d656c6f6e7320617265207265640a736f6d657468696e67736 f6d657468696e670a49206c6f766520796f750a2d205361756d656e736368000000000000000000 00

and when you copy the above hex string to here: http://string-functions.com/hex-string.aspx
you will get this as a result:
Quote
Water is blue
Melons are red
somethingsomething
I love you
- Saumensch

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February 14, 2017, 10:28:30 PM
 #10

Check out http://cryptograffiti.info/
It allows you to save any message or up to 50 KiB files/pictures on the Bitcoin's block chain.

People have also used it to store wedding photos on the block chain.

Do they show in blockchain.info as a message attached to a transaction or just in that website?
In the end it shows
OP_DUP OP_HASH160 576174657220697320626c75650a4d656c6f6e73 OP_EQUALVERIFY OP_CHECKSIG
OP_DUP OP_HASH160 20617265207265640a736f6d657468696e67736f OP_EQUALVERIFY OP_CHECKSIG
OP_DUP OP_HASH160 6d657468696e670a49206c6f766520796f750a2d OP_EQUALVERIFY OP_CHECKSIG
OP_DUP OP_HASH160 205361756d656e73636800000000000000000000 OP_EQUALVERIFY OP_CHECKSIG

so when you concatenate 576174657220697320626c75650a4d656c6f6e73, 20617265207265640a736f6d657468696e67736f, 6d657468696e670a49206c6f766520796f750a2d and 205361756d656e73636800000000000000000000 you will get this:
576174657220697320626c75650a4d656c6f6e7320617265207265640a736f6d657468696e67736 f6d657468696e670a49206c6f766520796f750a2d205361756d656e736368000000000000000000 00

and when you copy the above hex string to here: http://string-functions.com/hex-string.aspx
you will get this as a result:
Quote
Water is blue
Melons are red
somethingsomething
I love you
- Saumensch

Oh, that's takes time and not easy, I was thinking something like the transaction messages that rarely are shown in blockchain, I will check now if I can find an example.
You rock, thanks for your time explaining this <3
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February 14, 2017, 10:29:19 PM
 #11

This is magical ! Could you please explain us how it does work ? I have been here for quite a moment but never heard about this !

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February 14, 2017, 10:30:54 PM
 #12

This is magical ! Could you please explain us how it does work ? I have been here for quite a moment but never heard about this !

It is explained just a post before you and mine, I appreciate Hyena for writing this post for us and explaining it in detail but I was thinking that it is something easier like a message in blokchain as ASCII not as HEX
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February 14, 2017, 10:36:56 PM
 #13

This is magical ! Could you please explain us how it does work ? I have been here for quite a moment but never heard about this !

It is explained just a post before you and mine, I appreciate Hyena for writing this post for us and explaining it in detail but I was thinking that it is something easier like a message in blokchain as ASCII not as HEX

It is in ASCII actually. This is exactly how bitcoinstrings service works. It scans plaintext messages from blocks. However, bitcoin address format is Base58 not ASCII so that's why you don't see those messages directly in blockchain.info. For technical people it is rather obvious how to read block chain messages so you can be sure that your messages are easily found by anyone who bothers to scan the block chain byte-by-byte.

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February 14, 2017, 10:41:39 PM
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This is magical ! Could you please explain us how it does work ? I have been here for quite a moment but never heard about this !

It is explained just a post before you and mine, I appreciate Hyena for writing this post for us and explaining it in detail but I was thinking that it is something easier like a message in blokchain as ASCII not as HEX

It is in ASCII actually. This is exactly how bitcoinstrings service works. It scans plaintext messages from blocks. However, bitcoin address format is Base58 not ASCII so that's why you don't see those messages directly in blockchain.info. For technical people it is rather obvious how to read block chain messages so you can be sure that your messages are easily found by anyone who bothers to scan the block chain byte-by-byte.

Is this one different https://blockchain.info/address/1CzpppydnGN5dQN7iBnZbmm5RXreu7hrHW at the top of the page you see a message there, is this different from the OP ?
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February 14, 2017, 10:50:49 PM
 #15

Hyena I found something too:

https://chain.so/tx/BTC/0d605442753cedadfa301423d156e6ae518891d83b58475d457c4b0c5d39d937
There is a message, but when I paste cryptograffiti transaction id to chain.so it doesn't convert to a message
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February 14, 2017, 11:09:38 PM
 #16

Is this one different https://blockchain.info/address/1CzpppydnGN5dQN7iBnZbmm5RXreu7hrHW at the top of the page you see a message there, is this different from the OP ?

This message is internal to blockchain.info it is not saved on the block chain and thus cryptograffiti.info cannot see it.

Hyena I found something too:

https://chain.so/tx/BTC/0d605442753cedadfa301423d156e6ae518891d83b58475d457c4b0c5d39d937
There is a message, but when I paste cryptograffiti transaction id to chain.so it doesn't convert to a message

This message is embedded behind OP_RETURN which only supports messages up to ~80 bytes of length. Cryptograffiti.info currently does not have full OP_RETURN support and that's why this message is not visible in cryptograffiti.info. Adding full OP_RETURN support is in the TODO list though  Wink

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February 14, 2017, 11:16:13 PM
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Is this one different https://blockchain.info/address/1CzpppydnGN5dQN7iBnZbmm5RXreu7hrHW at the top of the page you see a message there, is this different from the OP ?

This message is internal to blockchain.info it is not saved on the block chain and thus cryptograffiti.info cannot see it.

Hyena I found something too:

https://chain.so/tx/BTC/0d605442753cedadfa301423d156e6ae518891d83b58475d457c4b0c5d39d937
There is a message, but when I paste cryptograffiti transaction id to chain.so it doesn't convert to a message

This message is embedded behind OP_RETURN which only supports messages up to ~80 bytes of length. Cryptograffiti.info currently does not have full OP_RETURN support and that's why this message is not visible in cryptograffiti.info. Adding full OP_RETURN support is in the TODO list though  Wink

Inthebitcoin.com seems to be one similar to cryptograffiti.info too and here is a video explaining it a bit.
https://inthebitcoin.com/s/17Cb21T3B6nTjf4pqXpMHQkA528RkUaGVZ
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February 15, 2017, 12:42:50 AM
 #18

Can someone explain to me how this is done? How would I put a file/image/message in the blockchain?
Hyena
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February 15, 2017, 07:55:02 AM
 #19

Can someone explain to me how this is done? How would I put a file/image/message in the blockchain?

You can read more about the cryptograffiti.info service from here:
https://bitcointalk.org/index.php?topic=524877.0

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February 15, 2017, 01:41:38 PM
 #20

Can someone explain to me how this is done? How would I put a file/image/message in the blockchain?

You can read more about the cryptograffiti.info service from here:
https://bitcointalk.org/index.php?topic=524877.0

Thanks  Cheesy
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