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Nijam Seal

Tamper-Proof Agreements. Tamper-Proof.

Sign contracts with AI-powered intelligence. Every document is cryptographically sealed with permanent, tamper-proof verification — creating an immutable, independently verifiable proof of signing.

How Tamper-Proof Sealing Works

1

Create & Sign

Draft or upload a document. Add signers. Each signs with draw, type, or biometric authentication.

2

SHA-256 Hash

The signed document is hashed using SHA-256 — a one-way cryptographic fingerprint unique to that exact file.

3

Permanent Seal

The hash is permanently anchored on a public, decentralized ledger — immutable and independently accessible by anyone.

4

Verify Anytime

Anyone can verify the document hasn't been altered by comparing its hash against the permanent public record.

Complete Signing Platform

Rich Document Editor

Full Tiptap-powered editor with headings, lists, tables, highlights, and template variables. Or upload any PDF and place signature fields with a drag-and-drop editor.

Sequential & Parallel Signing

Route documents through multiple signers in order, or let everyone sign simultaneously. Each signer gets a unique, secure signing link via email or WhatsApp.

Biometric Signing (WebAuthn)

Signers can authenticate using Face ID, Touch ID, or Windows Hello — the same passkey technology used by banks. No passwords, no friction.

Video Witnessing

Optional 10-second video recording during signing captures the signer on camera. The video is hashed and included in the audit trail for disputes.

Geolocation Capture

Record the exact signing location with GPS coordinates. Reverse-geocoded to city/country for human-readable audit records. Optional per agreement.

Automated Reminders

Smart escalation: gentle reminder at 24 hours, follow-up at 3 days, firm notice at 7 days. Tone adapts automatically. Cap at 3 reminders per signer.

Certificate of Completion

Auto-generated PDF certificate with all signer details, timestamps, IP addresses, signature hashes, verification transaction ID, and QR code linking to public verification.

Public Verification Portal

Anyone can verify a document at nijam.co/verify — enter the agreement ID or document hash. Three-layer check: hash match, permanent anchor, signer verification.

Why Independent Verification Matters

Traditional e-signatures rely on the platform's database as proof. If the company shuts down or data is compromised, your proof disappears. Independent verification changes that.

Immutable Record

Once sealed, the hash can never be altered or deleted. Even if Nijam ceases to exist, the cryptographic proof persists forever on a public ledger.

Independent Verification

Anyone can verify a document independently — no dependency on Nijam's servers. True zero-trust verification using public blockchain explorers.

Tamper Detection

Change a single pixel in the PDF, and the SHA-256 hash changes completely. Instant detection of any modification, no matter how small.

Why Nijam Seal is AI-First

FeatureNijam Seal (AI-Powered)Traditional e-Sign
AI clause reviewAutomatic risk scoring & plain-English summariesManual review only
AI risk detectionFlags missing clauses, unfavorable termsNone
AI-generated agreementsDraft contracts from a promptTemplate-only
Tamper-proof verificationIndependent, permanent proofNone
Public verificationAnyone, anytimeAccount required
Biometric signingWebAuthn (Face ID, Touch ID)None
Video witnessingBuilt-inNone
Geolocation captureGPS + reverse geocodeIP-based only
Invoice syncAuto-create invoice from contractNone
India complianceGST, e-invoicing, GSTR-1Limited

AI-Powered Agreement Intelligence

Every agreement benefits from built-in AI analysis.

Clause TL;DR

AI reads every clause and generates plain-English summaries with risk ratings — so signers understand what they're signing.

Smart Field Detection

Upload a PDF and AI automatically identifies where signatures, dates, and initials should be placed. Accept suggestions with one click.

Contract to Invoice

AI extracts payment terms, amounts, and party details from signed agreements and auto-creates draft invoices. Zero manual entry.

Power Templates

Start with industry-standard templates. AI fills in the details.

Non-Disclosure Agreement

Mutual or one-way NDA with configurable term, jurisdiction, and carve-outs.

Influencer Agreement

Brand-influencer contract covering deliverables, payment milestones, usage rights, and FTC compliance.

Rent-to-Own Agreement

Property agreement with payment schedule, maintenance terms, and purchase option clause.

See It in Action

From drafting to tamper-proof sealing — every step is designed for trust and transparency.

Document Editor

Rich Tiptap editor with template variables, or upload any PDF and drag-drop signature fields exactly where you need them.

Signing Experience

Clean, mobile-friendly signing page with draw/type/biometric options. Video witnessing and geolocation capture built in.

Verification Certificate

Auto-generated completion certificate with verification transaction ID, signer details, timestamps, and a QR code for public verification.

Start Sealing Documents Free

First 100 founders get Pro features free for 1 year. No credit card required.