Placing information that cannot be altered on the blockchain looks to be a very promising technology. The below link is to my bitcointalk comment on an experiment I recently ran with bitproof.io to place a hash of a Google Doc (some 520 KB):
https://bitcointalksearch.org/topic/m.10752544
TL;DR: this is the actual link to my document (picture, links and a small table from MS Excel):
https://docs.google.com/document/d/1M-vO0h0W_nLy-Z1Sz8xiYAhaCbmTMThL8FnW7hcoCkw/
* * *
factom.org has their own thread here I just discovered the other day (factoids are discussed a little, I look forward to hearing more soon):
https://bitcointalksearch.org/topic/ann-factom-introducing-honesty-to-record-keeping-850070
It is up to 9 pages now, so it will take awhile for a beginner to plow through it all. It looks like to me that factom is trying to do this on a LARGE SCALE while proofofexistence.com and bitproof.io are easier for "plain folks" to work with.
* * *
In my opinion, this is an exciting concept, using services to lock in information. I just do not see how little old moi makes any money from it yet...
