At the foundation of nxtlinq is nxtID, a purpose-built identity fabric that augments existing enterprise IAM systems by adding an immutable, independent ledger of identity, authorization, and AI activity—without replacing current identity infrastructure.

• HIT (Human Identity Token):
A cryptographically verifiable token that anchors AI interactions to an authenticated human, extending IAM-based identity with immutable attribution, intent, and accountability.

• AIT (AI Identity Token):
A scoped, policy-bound identity assigned to each AI agent, defining its role, permissions, and operational boundaries—ensuring every autonomous action is constrained, traceable, and auditable.

Together, HIT and AIT provide an independent identity and governance layer for agentic systems, enabling enterprises to preserve their existing IAM stack while gaining tamper-resistant traceability, policy enforcement, and auditability across human and AI workflows.