Principal Agent Protocol (PAP)

This document specifies the Principal Agent Protocol (PAP), a cryptographic protocol for human-controlled agent-to-agent transactions. PAP establishes a trust model rooted in human principals, defines hierarchical delegation through signed mandates, enforces context minimization through selective disclosure at the protocol level, and provides session ephemerality as a structural guarantee. The protocol uses no novel cryptographic primitives and requires no central registry, token economy, or trusted third party.