# Cronozen > Cronozen is a multi-tenant SaaS platform for rehabilitation, welfare, education, pharmacy, commerce, mentoring, and interior verticals. It provides AI-powered center management with cryptographic decision proof (DPU). ## Links - Documentation: https://docs.cronozen.com - Full AI context: https://docs.cronozen.com/llms-full.txt - Platform: https://cronozen.com - Blog: https://blog.cronozen.com ## Architecture Hub-and-spoke ecosystem: - OPS (cronozen.com): Hub — SSO, payments, tenant master, DPU engine, 7 verticals - LMS (learn.cronozen.com): Spoke — HRD-Net compliant LMS, EMON, workshop attendance - CMS (blog.cronozen.com): Spoke — blog, manuals, content - ERP (erp.cronozen.com): Spoke — business management ## Core Features - Multi-tenant SaaS with row-level center/workspace isolation (200+ tables) - Actor-based auth: ADMIN, INSTRUCTOR, PARENT, CHILD (JWT + SSO via auth.cronozen.com) - DPU (Decision Proof Unit): SHA-256 hash chain, 5-level governance, JSON-LD v2 export - White-label: custom domain, branding, CloudFlare Worker proxy, partner platform - LMS: HRD-Net compliance, EMON integration, anti-fraud (FDS), QR attendance with DPU proof - AI automation: workflow engine, pgvector embeddings, decision provenance ## Documentation Pages - [Introduction](https://docs.cronozen.com/introduction): Platform overview and getting started - [Quickstart](https://docs.cronozen.com/getting-started/quickstart): First API call in 5 minutes - [Core Concepts](https://docs.cronozen.com/getting-started/concepts): Actors, tenants, membership, DPU - [Architecture Overview](https://docs.cronozen.com/architecture/overview): System design, tech stack, deployment - [Multi-Tenant](https://docs.cronozen.com/architecture/multi-tenant): Row-level isolation, scoped Prisma - [DPU Engine](https://docs.cronozen.com/architecture/dpu): 3-layer architecture, 5 governance guards - [Proof Pipeline](https://docs.cronozen.com/architecture/proof-pipeline): 5-stage evidence pipeline - [Auth Overview](https://docs.cronozen.com/auth/overview): JWT, tenant resolution, actor family - [JWT Tokens](https://docs.cronozen.com/auth/jwt): Token lifecycle, session management - [Multi-Tenant Auth](https://docs.cronozen.com/auth/multi-tenant-auth): Domain routing, white-label auth - [Tenant Overview](https://docs.cronozen.com/tenant/overview): Tenant types, provisioning, partner platform - [Workspaces](https://docs.cronozen.com/tenant/workspace): Personal workspace isolation patterns - [Membership](https://docs.cronozen.com/tenant/membership): Lifecycle (INVITED→ACTIVE→ENDED), security - [AI Agents](https://docs.cronozen.com/agents/overview): Capabilities, governance flow - [Workflows](https://docs.cronozen.com/agents/workflow): Automation engine, vertical-specific workflows - [White-Label Setup](https://docs.cronozen.com/guides/white-label-setup): End-to-end custom domain deployment - [LMS Platform](https://docs.cronozen.com/guides/lms-integration): HRD-Net compliance, EMON, QR attendance - [API Overview](https://docs.cronozen.com/api-reference/overview): Base URLs, auth, rate limiting - [Auth API](https://docs.cronozen.com/api-reference/authentication): Login, /me, switch-center - [Tenant API](https://docs.cronozen.com/api-reference/tenants): Centers, partner management - [Workflow API](https://docs.cronozen.com/api-reference/workflows): Workflow execution, DPU integration ## Tech Stack Next.js 16, TypeScript, Prisma 6.18, PostgreSQL (pgvector), Redis, AWS ECS Fargate, CloudFlare, GitHub Actions CI/CD