Quote from: chrisrico on December 30, 2014, 11:49:37 PM

Quote from: bitcup on December 30, 2014, 12:46:04 PM

What's the best way to embed a note in the transaction? And the note can only be read by receiver.

thanks

Quote from: Gavin Andresen on September 05, 2012, 05:13:59 PM

Yes, please don't create lots of unspendable scriptPubKeys. There are more prunable ways of embedding messages into transactions. And there are even better ways of associating messages with transactions, so only people involved with the transaction can read the message (if that's desired).

In other words, lets figure out how to do this the right way. The way you're doing it now will stop working as soon as the network upgrades anyway (0-value outputs are nonstandard as of the 0.7 release).

The method Gavin was probably talking about is the Payment Protocol, which was still in development at the time of his comment.

BIP70 only supports request. What about send?
BIP70 also requires request party has a CA and url. A lot of p2p won't have those.