strongcert
StrongCert manages the full lifecycle of legal documents — from version-controlled templates and trusted e-signatures to cryptographic timestamps and immutable audit records stored in secure cloud infrastructure.
StrongCert stores your legal document templates with full version history. Every time a signature is required, the system renders a point-in-time canonical document — ensuring the exact text that was agreed to is permanently captured, never altered, never ambiguous.
Template updates never corrupt existing signed records. Rollback to any prior version in seconds. Your legal team stays in control.
Explore Templates
Built for organizations that can't afford ambiguity — every feature designed around defensibility, integrity, and scale.
Every signed document is written once and sealed. Evidence packages are stored in write-protected S3 buckets with object-lock policies — impossible to quietly alter after the fact.
Every signature event is stamped by a DigiCert TSA-compliant timestamp authority, providing cryptographic proof of exactly when a document was signed — legally defensible in any jurisdiction.
Templates evolve without risk. Every version is retained, every signing session locked to the exact template revision in effect at that moment. Auditors get the complete history.
Other applications — telehealth platforms, scheduling tools, HR systems — connect via a clean REST API to generate documents, trigger signing sessions, and pull completed records on demand.
Signatures are captured as structured data: signer identity, IP address, device fingerprint, consent language, and timestamp — not just a scribbled image. Every field is auditable.
No matter how many platforms call StrongCert, every agreement lives in one place. Eliminate fragmented document stores, version drift, and conflicting records across your product suite.
When a signer completes a document in StrongCert, we capture structured metadata alongside the signature itself: verified identity, IP address, device fingerprint, consent acknowledgment language, and a DigiCert-backed cryptographic timestamp.
The result is an evidence package that holds up — not just a PDF with a squiggle at the bottom.
View Sample Evidence PackageStrongCert handles the full document lifecycle so your applications don't have to. Connect once via API and your entire platform gains enterprise-grade document infrastructure.
Legal teams upload and version-control document templates inside StrongCert. Field definitions, consent language, and conditional clauses are configured once and reused across all your connected applications.
Your application sends a request with signer identity and template reference. StrongCert renders the canonical document at that moment, creates a secure session, and returns a signing URL or embeddable component.
The signer reviews and signs. StrongCert captures all structured event data in real time, applies the DigiCert timestamp, and locks the record before it is written to storage.
The sealed evidence package — signed document, metadata, audit log, and cryptographic proof — is written to secure S3 storage. Your application can retrieve it any time via API. Nothing changes after it's sealed.
StrongCert is the document backbone for your entire product suite. Telehealth platforms, scheduling tools, client portals — any application you build can plug into StrongCert via REST API to get enterprise-grade signing, storage, and compliance without rebuilding it from scratch.
Consistent document infrastructure across all your products. One place to audit. One source of truth.
StrongCert is architected around the legal requirements of the ESIGN Act, UETA, and international e-signature frameworks. Every technical decision — from how we store data to how we apply timestamps — is made with legal defensibility as the primary constraint.
When you need to produce a signed agreement in a dispute or regulatory audit, StrongCert gives you a complete, cryptographically verifiable record that speaks for itself.
Stop rebuilding document infrastructure for every product you ship. Connect once and every application you build inherits enterprise-grade signing, compliance, and audit trails.