What this demo shows. A complete employer→agency→worker placement case lifecycle on MOBIRA, with every event committed to a cryptographically continuous chain (HMAC-SHA256 per event, sequential hash linking, single-writer integrity guarantees). Case-close events are signed with the tenant's Ed25519 private key, producing a portable signed attestation any third party can verify with the public key directory at /.well-known/mobira-tenant-keys/<tenant>. Every event is queued for OpenTimestamps Bitcoin anchoring; once the next Bitcoin block is mined (1-2 hours), the chain has independent, blockchain-grade temporal proof. Patent thesis: MP21.