The evolution of intents to commitments to claims to economic events

I need something.
I cast my need on the Web as an intent (a request for something).
I receive an offer to provide something.
The offer comes with a requirement for providing something else in return.
We agree. The provider of something commits to transfer something to me, and I commit to transfer something else to them. A set of reciprocal commitments.
I transfer something else to them (an economic event, fulfilling my commitment).
I now have a claim for them to transfer something to me.
They transfer something to me (an economic event, satisfying my claim).

(We have already defined transfer to mean transferring some rights to a resource, so I will not repeat that with repetition of the word. Ok?)