Receipts before AI tool calls

This is a short update on XAIP since my earlier write-up on portable trust. The main changes are: a new public demo, refreshed live numbers, and receipts from MCP, LangChain.js callbacks, and OpenAI-compatible tool-call loops in the same public trust graph. I've been building XAIP, a provider-neutral signed execution evidence layer for AI agent tool calls. The basic idea is simple: before an agent delegates work to an external tool, it should be able to inspect historical execution evidence from