The problem
Agencies and freelancers increasingly ship AI-assisted work. The deliverable is often a prompt, a model output, and some surrounding context — but the handoff lives in email, Slack, or a shared doc. When a client asks “what exactly did we get?” you’re reconstructing history from chat logs.
That’s an operational problem, not a cryptography problem. Still, a simple cryptographic receipt helps: lock the bytes, stamp the time, share one artifact.
What ProofPack does
ProofPack turns that bundle into a timestamped, hash-locked delivery receipt:
