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XPR Network · On-Chain Signatures · v1.0 — LIVE NOW

The e-signature replacement.
Blockchain-proven.

Stop paying $30+/month for legacy e-sign tools. Web3Sign gives you 10 DocuSign-class features — drawn & typed signatures, field overlays, per-signer assignment, notifications, drafts, signing order, expiration deadlines, completion certificates, and reusable templates — all for $4.99/month. Every signature is anchored to the XPR Network. Tamper-proof. Verifiable by anyone. Forever.

$4.99/mo
Full Plan
50 Free
ESIGN Tokens
< 1s
On-Chain Proof
web3sign — session
// connect wallet via WebAuth $ web3sign connect --account ubitquity1 ✓ Wallet connected: ubitquity1 // create document with SHA-256 proof $ web3sign create "Purchase Agreement" hashing content... SHA-256: a3f8c1d9e2b7...4f6a0c8d ✓ Document registered // sign & push to XPR Network $ web3sign push --chain xpr ✓ Signature anchored on-chain tx: 3a8f2d...c9e1b4 memo: ESIGN|a3f8c1d9|ubitquity1
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Documents Signed
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On-Chain Signatures
3
Storage Layers

Three steps. Immutable proof.

From document upload to blockchain-anchored signature with date, text fields, and multi-party sign-off — in seconds.

01

Create & Hash

Upload a document or paste text. Web3Sign computes a SHA-256 content hash client-side — your data never leaves your browser unencrypted. Define which XPR wallets must sign.

02

Sign On-Chain

Each signer authenticates via WebAuth, enters their signature, date, and optional text fields in a pop-up modal, then pushes an immutable memo to XPR Network. Multi-party signing with full input capture — just like legacy e-sign, but on-chain.

03

Verify Anywhere

Anyone can verify a document by its content hash. Web3Sign checks local storage, the secure server, and the XPR Network blockchain for matching signatures and transaction IDs.

Replace your existing eSign company

Everything legacy e-sign platforms charge $30+/month for — drawn & typed signatures, field overlays, signing order, expiration deadlines, completion certificates, reusable templates, and blockchain-anchored proof — at a fraction of the cost.

FEATURE 01Drawn Signature Capture

Sign with your finger or mouse directly on a canvas. Retina-sharp rendering with full pressure sensitivity. Signatures are captured as cryptographic image data and anchored to the blockchain alongside your transaction.

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FEATURE 02Typed Signature & Auto-Fill

Type your name in cursive (Dancing Script font) as your legal signature. Signer name and date are auto-filled and locked at signing time — captured and stored with every on-chain record.

FEATURE 03Field Placement Overlay

Place signature, initials, date, name, and text fields directly onto your document preview. Pixel-perfect percentage-based coordinates work across any resolution or device.

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FEATURE 04Per-Signer Field Assignment

Assign each field to a specific signer. Signature and initials fields auto-complete when that signer signs. Every participant only fills their own fields — no confusion, no overlap.

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FEATURE 05Pending Signature Notifications

A live notification banner and tab badge alert signers the moment a document awaits their signature. One-click "Sign Now" from the dashboard — no searching, no missed envelopes.

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FEATURE 06Draft Mode

Save a document as a local draft before sending for signatures. Edit the title, content, signers, and fields at any time. Lock and register on-chain only when you're ready — no premature blockchain commits.

FEATURE 07Signing Order & Sequential Signing

Set a strict signing sequence across up to 4 steps. Step 2 signers are automatically locked until Step 1 is complete. Documents show the active step in real time — exactly like DocuSign routing order.

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FEATURE 08Document Expiration Deadlines

Set an expiration date on any document. Unsigned documents auto-void after the deadline. Countdown chips go from neutral to orange (≤3 days) to red (expired) — no more forgotten envelopes.

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FEATURE 09Completion Certificate PDF

When all parties have signed, generate a branded completion certificate in one click. Includes signature images, signer names, dates, blockchain TX links, SHA-256 hash, and IPFS CID — ready to print or save as PDF.

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FEATURE 10Reusable Templates

Save any document as a reusable template — title, description, signers, and signing order are all preserved. Apply a template to instantly pre-fill a new document. Stop retyping the same contracts.

Transfer. Assign. Monetize.

Documents aren't static. Ownership changes hands — and Web3Sign records every transfer immutably on-chain.

How transfers work

The current document owner selects a recipient — any XPR Network account authenticated via WebAuth. A single on-chain transaction bundles the transfer fee and an immutable XFER memo proving the ownership change.

The document's full ownership history is preserved: original creator, every subsequent owner, every TX ID, and every fee paid. Third parties can independently verify the chain of custody.

WebAuth to WebAuth
On-Chain Proof
Transfer Memo Format
XFER|a3f8c1d9e2b74f6a|alice>bob|ownership-transfer
Memo Prefix
XFER — Web3Sign transfer action tag
Hash
First 16 chars of the document's SHA-256 content hash
From > To
Sender and recipient XPR Network accounts
Note
Optional transfer note (up to 40 characters)
Transfer Fee
Per transfer 1 ESIGN
Paid via tokencreate contract to ubitquity1 · 8 decimal precision

Three layers. One truth.

Redundant by design. Every signature exists in three independent storage layers for maximum resilience and verifiability.

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Local
Local Storage
Offline-first client storage. Instant reads. Works without network. Documents and signatures cached securely in your browser.
Server
Secure Server
Persistent server-side storage. Redundant backup for all documents and signatures. Syncs across devices and users. Always available.
Blockchain
XPR Network
Immutable on-chain proof via transfer memo. Transaction ID recorded. Verifiable on any block explorer. Cannot be altered or deleted.
←  sync  →
←  anchor  →

Every signature has a receipt

The blockchain memo is your permanent, public, tamper-proof proof of signing.

ESIGN|a3f8c1d9e2b74f6a|ubitquity1|7c2e9b1a4d8f3c6e|Purchase Agreement
Memo Prefix
ESIGN — Web3Sign signing action tag
Hash
First 16 chars of the document's SHA-256 content hash
Signer
XPR Network account that authorized the signature
Sig Hash
Unique signature hash derived from content + wallet + timestamp
Title
First 30 characters of the document title

Immutable by default

Each signing action pushes a minimal 0.00000001 ESIGN token transfer to the ubitquity1 account via the tokencreate contract, carrying a structured memo. The transfer amount is negligible — the memo is the payload.

Once confirmed, the transaction is permanently recorded on XPR Network. The transaction ID links directly to the block explorer for independent third-party verification.

XPR Network · Proton Blockchain

One plan. No tricks.

Everything you need to replace legacy e-sign platforms — at a price that makes sense.

Full Plan
$4.99/month
50 free ESIGN tokens included
Drawn & typed signature capture
Field placement overlay (sig, initials, date, name, text)
Per-signer field assignment
Pending signature notifications & draft mode
Sequential signing order (up to 4 steps)
Document expiration deadlines & auto-void
Completion certificate PDF (one-click download)
Reusable document templates
Blockchain-anchored proof & IPFS pinning
Other eSign providers charge $15–$25/mo — Web3Sign gives you blockchain proof for $4.99/mo
Pay with WebAuth
~4.99
USDC
~4.99
XMD
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XPR
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ESIGN ✦

Buy with WebAuth now

Connect your XPR Network wallet and activate your Web3Sign plan instantly. Live pricing pulled from Alcor Exchange every page load.

Private Sale Registration

Please complete this form to whitelist your address.

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Minimum $10.00
USD
You pay
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Token
XUSDC
You receive (ESIGN)
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Sale price
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Payment sent to ubitquity1. All transactions are recorded on-chain and verifiable on the XPR Network explorer. Prices are live from Alcor Exchange and update on each page load.

Web3Sign v1.0

Blockchain document signing on XPR Network. Replacing legacy e-sign with cryptographic proof, on-chain anchoring, and verifiable audit trails.

1 · Abstract

Web3Sign is a decentralized document signing platform built on the XPR Network (Proton) blockchain. It replaces centralized e-signature services with a system where every signature is cryptographically hashed, anchored on-chain via token transfer memos, and independently verifiable through any block explorer. The platform uses WebAuth wallet authentication, SHA-256 document hashing, and a three-layer storage architecture (local, server, blockchain) to guarantee integrity, non-repudiation, and permanence.

2 · Problem

Legacy e-signature platforms (DocuSign, Adobe Sign, HelloSign) rely on centralized trust. The signing authority, audit trail, and document storage all live on proprietary servers controlled by a single entity. This introduces risks:

  • Signatures can be silently altered or deleted by the platform operator
  • Audit trails are opaque and not independently verifiable
  • Vendor lock-in — documents become inaccessible if the service shuts down
  • Overpriced plans ($25–$60/mo) for basic signing functionality
  • No cryptographic proof of document integrity at signing time
3 · Solution

Web3Sign anchors every signature action to the XPR Network blockchain. When a user signs a document, the platform:

  1. Computes a SHA-256 hash of the document content
  2. Generates a unique signature hash from content + wallet + timestamp
  3. Pushes a minimal 0.00000001 ESIGN token transfer with a structured memo
  4. Records the transaction ID for permanent block explorer verification
  5. Stores the document and metadata across three independent layers
4 · Architecture

Web3Sign uses a three-layer storage model. No single point of failure can destroy a signed record.

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Local Storage
Offline-first. Instant reads. Documents cached securely in browser.
Server Storage
Persistent backup. Cross-device sync. Always available.
Blockchain
Immutable on-chain proof. Verifiable on any XPR block explorer.
5 · On-Chain Proof Format

Every signing action creates a token transfer on XPR Network carrying a structured memo. The transfer amount is negligible — the memo is the payload.

ESIGN|a3f8c1d9e2b74f6a|ubitquity1|7c2e9b1a4d8f3c6e|Purchase Agreement
ESIGNAction tag identifying a Web3Sign signature HashFirst 16 chars of the document SHA-256 hash SignerXPR Network account that authorized the signature Sig HashUnique hash derived from content + wallet + timestamp TitleFirst 30 characters of the document title

Transfer memo format for ownership changes uses the XFER prefix: XFER|hash|from>to|note

6 · ESIGN Token

ESIGN is the native utility token of the Web3Sign platform, deployed on XPR Network via the tokencreate contract.

Contract
tokencreate
Precision
8 decimals
Platform Account
ubitquity1
Exchange
Alcor DEX

Usage: Signing actions transfer 0.00000001 ESIGN as a carrier for the memo payload. Document ownership transfers cost 1 ESIGN per transfer. Subscription plans are payable in XUSDC, XMD, XPR, or ESIGN at live Alcor Exchange rates.

7 · Authentication

Web3Sign uses WebAuth (Proton Web SDK) for wallet-based authentication. No passwords, no email accounts, no centralized identity provider. Users authenticate by connecting their XPR Network wallet, which serves as both identity and signing authority. Session persistence allows returning users to restore their wallet connection without re-authentication.

8 · Platform Features
✓  Drawn & typed signatures
✓  Drag-and-drop field overlays
✓  Multi-signer signing order
✓  Expiration deadlines
✓  Completion certificates
✓  Reusable templates
✓  On-chain anchoring
✓  Document ownership transfers
✓  Full audit trail
✓  Hash explorer & verification
9 · Pricing Model

One plan at $4.99/month with all features included. No tiers, no per-signature fees, no hidden costs. 50 free ESIGN tokens included with every subscription. Payable in XUSDC, XMD, XPR, or ESIGN.

Private Sale: ESIGN tokens available at a 75% discount during the current private sale period. Minimum purchase $10 USD equivalent.

10 · Roadmap
v1.0 — Core platform launch: document signing, on-chain proof, three-layer storage, WebAuth authentication, ownership transfers, hash explorer
v1.1 — IPFS document pinning, advanced template builder, bulk signing operations
v1.2 — Staking rewards for ESIGN holders, governance voting, API access for enterprise integrations
v2.0 — Multi-chain support, cross-chain verification, mobile-native signing experience
Web3Sign Whitepaper v1.0 · UBITQUITY, INC. · XPR Network · One Block at a Time®

Ready to ditch overpriced e-sign?

Connect your XPR Network wallet and get all 10 features — drawn & typed signatures, field overlays, signing order, expiration deadlines, completion certificates, reusable templates, and blockchain-anchored proof. $4.99/month. 50 free ESIGN tokens included.