BizSign

Send, sign, and track legally-binding documents. Built for businesses that need real e-signatures with auditable cryptographic proof.

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AES today, QES tomorrow

Advanced Electronic Signatures with cryptographic timestamping. Qualified eIDAS signatures rolling out in Phase 3.

Tamper-evident audit trail

Every view, click, and signature is hash-chained — independent verifiers can replay the chain to detect any change.

Multi-tenant from commit 1

Postgres row-level security plus application-level filters plus CI checks. Your tenant cannot see another tenant's documents.

Built for builders

Public REST API, signed webhooks, idempotency keys. Wire BizSign into your CRM, billing, or backoffice.