Blockchain-Protected Digital Signatures

NEDO Sign — Secure Digital Signatures

Accelerate enterprise document workflows with legally binding signatures, drag-and-drop placement, API-driven automation, and immutable blockchain audit logs.

From simple electronic signatures to PKI-based digital signing — with blockchain-anchored audit trails for tamper-proof integrity verification.

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The Problem

The Document Signing Challenge

Organizations still rely on manual, fragmented signing processes — creating delays, disputes, and compliance risks.

01

Manual Signing Delays

Paper-based and email-based signing creates bottlenecks that slow down critical business processes by days or weeks. Print, sign, scan, email — a cycle repeated thousands of times across the enterprise.

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02

Signature Authenticity Disputes

Without cryptographic verification, signature authenticity can be challenged in court. Wet signatures provide no proof of intent, identity, or timestamp — creating legal exposure.

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03

Weak Audit Trails

Traditional signing processes leave fragmented, easily manipulated audit logs. When regulators ask for proof, organizations scramble to reconstruct timelines from emails and filing cabinets.

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04

Integration Complexity

Connecting signing workflows to existing ERP, HR, CRM, and government systems requires months of custom development — and constant maintenance as APIs change.

05

Risk of Document Tampering

Without blockchain anchoring, signed documents can be silently modified after signing with no cryptographic proof of integrity.

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06

Compliance & Legal Risk

Regulatory frameworks demand verifiable signing processes. Without proper identity verification and timestamping, signed documents may not hold up in court.

The Solution

The NEDO Sign Solution

A complete digital signature infrastructure — from simple click-to-sign to PKI-based cryptographic signing with blockchain integrity.

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Advanced Electronic & Digital Signatures

Support Simple Electronic (SES), Advanced Electronic (AES), and PKI-based Digital Signatures with certificate validation and HSM integration.

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Drag-and-Drop Signature Placement

Visual document preview with drag-and-drop fields — signatures, text, dates, checkboxes, and stamps — with template saving.

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API-Based Signature Automation

Programmatic signing with REST APIs — coordinate-based placement, anchor-text detection, bulk signing, and embedded links.

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Multi-Party Workflow Routing

Sequential, parallel, and conditional approval routing with automated reminders, expiration, and real-time status tracking.

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Blockchain-Backed Audit Logs

Every signing event is hashed and anchored to blockchain — creating immutable, independently verifiable audit trails.

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Enterprise Security & Compliance

AES-256 encryption, TLS 1.3, HSM support, RBAC, MFA, and compliance-ready architecture for regulated industries.

Integration

Seamless Inbound & Outbound Integration

NEDO Sign connects to any application — receive documents via API from upstream systems, apply digital signatures, and distribute signed documents to downstream platforms.

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Our Advantage

What Makes NEDO Sign Different

Not just another e-signature tool — a complete enterprise signing infrastructure with blockchain integrity.

Blockchain-Protected Audit Trail

Every signing event is cryptographically hashed and anchored to blockchain — creating tamper-proof, independently verifiable audit logs.

API-First Architecture

Complete REST API coverage for every operation — document creation, signer management, field placement, signing, verification, and blockchain proof.

Drag-and-Drop Signature Designer

Visual document preview with intuitive drag-and-drop placement of signature fields, text, dates, checkboxes, and stamps.

On-Premise or Cloud Deployment

Deploy to your own infrastructure for maximum control, use our cloud for convenience, or run hybrid — your choice.

Integration-Ready

Pre-built integrations for ERP, HR, CRM, government platforms, and banking systems — with webhook support for real-time events.

Architecture

Enterprise-Grade Layered Architecture

NEDO Sign is built on a modular, layered architecture designed for security, scalability, and seamless integration.

Application LayerWeb Dashboard / Mobile App / Embedded Widget</>Workflow EngineSequential / Parallel / Conditional Routing · Reminders · ExpirationSignature EngineSES / AES / PKI Digital Signatures · Certificate Validation · HSMSESAESPKIBlockchain AnchoringSHA-256 Hash · Chain Anchor · Proof Verify#1#2#3Audit & LoggingImmutable Trails · Event Sourcing · Compliance ReportsIntegration & Security LayerREST API / Webhooks · AES-256 Encryption · TLS 1.3 · RBAC · MFAAES-256TLS 1.3RBACMFAInfrastructureCloud / On-Premise / Hybrid · Kubernetes · Docker · PostgreSQL · RedisK8sDockerPgSQLRedisCore Services

Deployment Options

SaaS CloudOn-PremiseHybridPrivate Cloud

Ready to Digitize Your Signature Workflows?

See how NEDO Sign can accelerate your document workflows with legally binding, blockchain-protected digital signatures.

Blockchain audit trailAPI-firstOn-prem & cloudEnterprise support