Explore the architecture, database constraints, and visual flows powering SK Sign.
Define signature fields, text inputs, and check-boxes dynamically via REST API. Our layout engine renders high-fidelity sign bounds on any PDF artifact.
Scaled to process inbound workloads in sub-100ms with strict rate-limits protections.
All writes request carrying idempotency keys are deduplicated instantly at API gateways.
Database layer RLS policies isolate organization records from adjacent workspaces.
Verify signer identity before releasing signature bounds. Connects directly to the backbone event engine for instant SMS and email OTP dispatch.
Scaled to process inbound workloads in sub-100ms with strict rate-limits protections.
All writes request carrying idempotency keys are deduplicated instantly at API gateways.
Database layer RLS policies isolate organization records from adjacent workspaces.
Strip out third-party branding entirely. Host documents on custom tenant domains and style signing portals with organization styling tokens.
Scaled to process inbound workloads in sub-100ms with strict rate-limits protections.
All writes request carrying idempotency keys are deduplicated instantly at API gateways.
Database layer RLS policies isolate organization records from adjacent workspaces.
Every signature action, IP address, and email verification writes to an append-only transaction ledger protected by PostgreSQL RLS and trigger rules.
Scaled to process inbound workloads in sub-100ms with strict rate-limits protections.
All writes request carrying idempotency keys are deduplicated instantly at API gateways.
Database layer RLS policies isolate organization records from adjacent workspaces.
Set sign timeline expirations and auto-reminders. Managed asynchronously by BullMQ event loops to chase down outstanding signatures without application locks.
Scaled to process inbound workloads in sub-100ms with strict rate-limits protections.
All writes request carrying idempotency keys are deduplicated instantly at API gateways.
Database layer RLS policies isolate organization records from adjacent workspaces.
SDK scripts, payload schemas, and webhook models are documented on the developers page.