Japan's G7 Hiroshima AI Process established international principles for trustworthy AI. But principles require technical infrastructure to become enforceable standards. EXIT Protocol provides verifiable agent provenance that turns Hiroshima Process commitments into auditable practice.
EXIT is an open standard for cryptographic departure and arrival records for AI agents. Each record is a signed attestation (~660 bytes) that can be verified by any platform. When an agent moves between systems, its history travels with it. This creates the trust infrastructure that "trustworthy AI" requires.
Japan led the Hiroshima Process. EXIT provides the technical layer to implement those commitments. As the standard undergoes NIST review in the US and aligns with EU AI Act requirements, Japan can shape the Asia-Pacific adoption path. Early engagement ensures Japanese industry requirements are reflected in the standard's evolution.