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About a year ago, I read that the the blockchain can be used to store documents. Even corporate founding documents (I believe that a company has already been formed on the blockchain). More recently (at TNABC) I ran into a company called
factom.org, they want to write for developers that would put permanent & un-alterable documents on the blockchain. factom wants to do that by using "hash values" of such documents.
The other day I ran into
proofofexistence.com. They have a service which will allow almost anyone to do something like that: post documents on the blockchain. I did that just today. It costs about $1.25 (in BTC) to do that. I had a little bit of trouble figuring it out, but eventually I did. Here is "their" version of my message after their SHA-256 hashing of my document:
09c388c5e1ef405751fb5dccb0767ed5f77f5f7f209def56ccae6433a111761b *The above was posted onto the blockchain (block number 344121). The transaction (hash) number on the blockchain for this is:
cc890677133beb1edefff00bab4266da12eb2a5b675907233012f7ef1721d7ee
A contest (for anyone who would like to take a shot this). If you can tell me what my original message was (from the first hash-value above, in green), I will pay a prize of 0.05 BTC, but you must be the FIRST one to claim the prize, HERE, and you must explain HERE how you solved it.Good luck!
* * *
For the purists around here, I will make a donation to the Bitcoin Foundation (as I believe that they are coordinating the developers working on new versions of BTC software)."Blockchain Bloat" appears to be a (future) problem that they will solve, so I would like to do my part.
* EDIT:
In case you DO solve it, please leave out my real name, thanks! Otherwise, post the message in this thread.
