Hmm, thats scary thinking the GUID in a RFID chip might be the bitcoin private key instead of the guid it is now.  Very scary.  I know the code for Bitcoin in and out and there is no 666 currently in there- its innocuous currently by itself.  But you make a good point, that the BTC private wallet key "could" be the alphanumeric characters embedded In an RFID chip that would replace the current GUID in the digital angel/verisign injectable RFID glass chip (if you want to see the key, type dumpprivkey bbpwalletaddress).  If that was the case you could spend those BTC after dinging the register with your hand, not very bright future.  For me, Id rather take out a credit card and have the inconvenience, I will never take the mark.  Its interesting also how many companies have bought the original digital angel design of the glass chip - I have a link somewhere here I think its being covered up to conceal the identity that owns the source code, but also I posted a couple weeks ago Elon Musk is creating the Neural Lace, that could be what turns into the storage container for the mark on the forehead.  But thats far fetched.

As far as storing data in our Chain, Biblepay already has pioneered that aspect in that we added an XML storage field to our transactions that stores up to 1000 characters in each transaction VOUT (thats where we store the prayers).  So you can store things in BBP now for a fee of 1 bbp per 1000 characters per vout.  Take a look at the news create function in bbp how it splits an article up into nSize/1000 and stores each piece of the article in a vout.  Let me know if you want the function call name.  On a side note you can test the BBP message by sending yourself some BBP with a message in it but dont click the Prayer checkbox unless you want the prayer to appear in everyones wallet.