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Author Topic: storing messages in the blockchain  (Read 3033 times)
mav
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June 17, 2012, 11:54:45 AM
 #1

I am interested in placing a message into the blockchain for the purpose of timestamping the message (eg adding the hash of a document to the blockchain so that the document can be verified as existing sometime before the timestamp of the block)

I've looked at how btcmsg does it but the comment in this link suggests that btcmsg isn't the right way to do it.

http://bitcoin.stackexchange.com/questions/2616/how-to-decode-messages-embedded-with-btcmsg

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Please don't encourage this abuse of Bitcoin. If someone would like to implement a message service correctly, there are many developers on IRC willing to help. – Luke-Jr

Can someone propose how I may best achieve placing a message in the blockchain? I've had some ideas but would like to hear how the pros think it should be done.

I expect flames that 'bitcoin isnt meant for that' - if so please explain the alternative you'd use instead.
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vuce
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June 17, 2012, 12:51:04 PM
 #2

I am interested in placing a message into the blockchain for the purpose of timestamping the message (eg adding the hash of a document to the blockchain so that the document can be verified as existing sometime before the timestamp of the block)

I've looked at how btcmsg does it but the comment in this link suggests that btcmsg isn't the right way to do it.

http://bitcoin.stackexchange.com/questions/2616/how-to-decode-messages-embedded-with-btcmsg

Quote
Please don't encourage this abuse of Bitcoin. If someone would like to implement a message service correctly, there are many developers on IRC willing to help. – Luke-Jr

Can someone propose how I may best achieve placing a message in the blockchain? I've had some ideas but would like to hear how the pros think it should be done.

I expect flames that 'bitcoin isnt meant for that' - if so please explain the alternative you'd use instead.

I have made a beta implementation of CommitCoin protocol. If you're interested PM me. I'm not ready to make it publicly available just yet but it's fully functional.

An easier alternative if you don't mind paying 0.0005 btc fee is to use hash to address utility of blockexplorer to convert the hash of your message to a btc address, and then create a transaction that sends 0 btc to that address. (this way no money is wasted)
Vernon715
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February 07, 2013, 03:48:42 AM
 #3

You could also just add a public note through blockchain.info

Please donate: 1FfJzfpGCXD6saKqmMs8W1qt9wouhA98Mj

http://bitcoinpyramid.com/r/1642

100101011010100100101010010111001010010101010100101001000100101010101010101010
bhafner
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April 21, 2013, 05:25:20 PM
 #4

You could also just add a public note through blockchain.info

The blockchain.info public note system is not stored in the blokchain, but only on the blockchain.info servers.

You don't benefit from the bitcoin zero-trust network...
bitikunn
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March 25, 2014, 09:35:07 AM
 #5

You could check out http://www.cryptograffiti.info. The idea behind the site is to display transactions which include addresses that have human readable characters in them. The mentioned feature is not jet implemented. The whole thing is in development still. But it does offer a functionality to encode arbitrary text as Bitcoin addresses with relative ease.

Developer of  CryptoGraffiti
dewdeded
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March 25, 2014, 01:30:41 PM
 #6

why not use twister for it?

thats a blockchain based messaging/twitter/spam service

may also look at bitmessage it has broadcasts

please dont use our bitcoin currency blockchain for it, you pollute it
solomania9
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June 10, 2014, 09:28:35 PM
 #7

I'm late to the party here, but Bitcoin Megaphone should suit your needs:

http://bitcoinmegaphone.com

I made a site called BitcoinMegaphone.com
devthedev
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June 10, 2014, 10:19:14 PM
 #8

please dont use our bitcoin currency blockchain for it, you pollute it

Why not? There's nothing wrong with dust transactions.

I'm late to the party here, but Bitcoin Megaphone should suit your needs:

http://bitcoinmegaphone.com

Not really, that's server hosted and centralized.



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RoadStress
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June 11, 2014, 12:07:06 AM
 #9

So no other option?

I posted the same question about 1 year ago and I remember that someone suggested that i need to do a RAW transaction in order to store something in the blockchain, but I couldn't find a user-friendly option to do that.

iCEBREAKER is a troll! He and cypherdoc helped HashFast scam 50 Million $ from its customers !
H/w Hosting Directory & Reputation - https://bitcointalk.org/index.php?topic=622998.0
jagallout
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June 12, 2014, 03:24:15 AM
 #10

I like the idea of producing a hash/signature from the message and converting it somehow to an address (as previously mentioned).  While its not explicitly adding a message to the block, for the purpose of timestamping/non-repudiation your golden.
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