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E-Signatures & Evidence

SK Sign — the secure platform engine for scales

Cryptographically secure, tenant-isolated electronic signatures. OTP-gated signing, custom branding, and automated reminder queues designed for APIs and platforms.

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Core Suite platform module · verified June 2026
active streamREST API gateway
inbound eventclient request initializedstatus = active
auth payloadRS256 signature verifiedtenancy = isolated
database outboxwrite transaction committedevent: published ✓
developer console
tenant_isolated_bucket secure
engineSK Sign Core
connectionestablished ✓
tenancy_ruleRLS_isolated
webhook_logsactive
$ curl -X POST https://api.softknack.com/v1/sign \
  -H "Authorization: Bearer <delegated_JWT>"
{"status": "success", "scope": "isolated"}
100%Tenant Isolated
<100msSSE Stream Latency
100% FlatCore Suite pricing
0% OverageNo transaction taxes
Suite Architecture

Built to integrate. Designed to scale.

Softknack modules share a unified architecture topology: zero shared schemas, database RLS scopes, and signed webhooks envelopes.

Zero-Trust Tenancy Boundaries

Data isolation is enforced directly in the database layer. Database triggers drop raw updates, ensuring your organization records are safe and secure from adjacent tenants.

  • Row-Level Security (RLS) policies checking tenant key tokens
  • Encryption at rest with automatic rotation routines
  • 100% compliant with standard regional regulations
Tenant A Tenant B RLS BOUNDARY

Part of the Softknack Core Suite

Unlock SK Sign alongside nine other core modules under one single flat subscription rate. No user seat licensing taxes.

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Frequently Asked Questions

How is data isolated in SK Sign?
We implement Row-Level Security (RLS) directly in our PostgreSQL databases. When a user requests data, the query binds to their organization scope claim, ensuring they can never read other tenant records.
Does this support custom white-labeling?
Yes. You can configure custom CNAME mapping to route signing or delivery portals through your own domain with custom branding profiles.
What are the developer API limits?
Our REST endpoints and event ingestion gateways are scaled to handle peak production workloads with generous rate-limits on our Core tier.

Integrate SK Sign with your pipelines today.

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