SUPPLY CHAIN
TRANSPARENCY

Know exactly where products are, where they came from, and who handled them, with a modern blockchain layer built for trust, traceability, and operational clarity.

Portal View — SaralChain Network
LATEST TRANSACTION
TXN#0x8fa2...c39d
Batch B-2047 → In Transit to Customs
Verified via PoSA · 3 confirmations
Status IN TRANSIT
Escrow SECURED
Contract TelemetryAnchor.sol
100%
Immutable Records
<3s
Block Finality
DeFi
Escrow Payments
IoT
Telemetry Anchoring
PoSA
Consensus Layer
▸ WHAT IS MST SARALCHAIN

BLOCKCHAIN
SUPPLY CHAIN
TRANSPARENCY

Modern supply chains move products through factories, warehouses, shipping routes, and retailers, but are often full of blind spots and fragmented data. MST SaralChain creates a shared, verifiable trail on the MST Layer 1 — making every handoff visible, eliminating blind spots, reducing ambiguity, and improving trust, compliance, and coordination.

  • Every product movement recorded as an immutable on-chain event via 7 Solidity smart contracts
  • Gasless meta-transactions — NestJS relayer abstracts blockchain complexity from enterprise users
  • DeFi Escrow automatically releases payment only when IoT sensors confirm safe delivery
  • QR-based provenance verification — scan any batch to verify its complete on-chain history
▸ KEY CAPABILITIES

BUILT FOR ENTERPRISE
SUPPLY CHAINS

📍
Complete Traceability
Track every movement across manufacturers, transporters, customs, and retailers. Each event is cryptographically signed and permanently recorded on MST chain.
🛡️
Anti-Counterfeit Protection
Smart contracts enforce batch authenticity. Scan a QR code to verify provenance in real time — any tampering invalidates the on-chain signature.
🗄️
Shared Source of Truth
Every stakeholder operates from the same verified ledger. No more reconciliation disputes or data silos across supply chain partners.
💰
DeFi Escrow Payments
Trustless tMST token escrow locks funds at purchase and auto-releases to suppliers only when IoT telemetry confirms safe, compliant delivery.
🌡️
IoT Telemetry Anchoring
Temperature, humidity, and GPS data from IoT sensors are cryptographically anchored to the blockchain — providing tamper-proof compliance evidence.
📱
QR Scan & Verify
Any party scans a product QR code to instantly verify its complete provenance journey — from factory to shelf — with zero trusted intermediaries.
▸ HOW IT WORKS

FROM FACTORY TO CONSUMER
EVERY STEP ON-CHAIN

01
Identity & Mint
Manufacturers register their identity on-chain via IdentityRegistry.sol, then mint product batches with GS1 GTINs using BatchLedger.sol.
02
Transport & Anchor
Transporters log GPS checkpoints and IoT telemetry (temperature, humidity) via TelemetryAnchor.sol. Every data point is cryptographically timestamped.
03
Customs & Compliance
Customs agents verify IPFS-anchored compliance documents, advance batch stages via StageManager.sol, and authorize cross-border clearance.
04
Deliver & Settle
Retailers verify delivery, release DeFi escrow funds via EscrowRegistry.sol — tMST tokens auto-transfer to the manufacturer upon confirmation.
▸ PROOFS OF CONCEPT

PRACTICAL PILOT
USE CASES

Real-world scenarios demonstrating how MST SaralChain improves traceability, trust, and operational performance across industries.

National Car Manufacturer
AUTOMOTIVE
National Car Manufacturer
Vehicle parts tracked from production to delivery. Each batch carries a verified on-chain history — enabling instant recall response and warranty validation.
DEMO USE CASE
Express Post & Shipping
LOGISTICS
Express Post & Shipping
Package custody and transfer events recorded at every handoff. Reduces disputes, improves last-mile transparency, automates proof-of-delivery.
IN DESIGN
Food & Agriculture Tracking
AGRICULTURE
Food & Agriculture Tracking
Farm-to-shelf visibility helps reduce spoilage and recall time with trusted provenance. Consumers verify origin with a single scan.
IN DESIGN
▸ YOUR JOURNEY ON SARALCHAIN

ONE PRODUCT, FOUR STAKEHOLDERS
EVERY HANDOFF VERIFIED

Follow a single batch as it moves through the entire supply chain — from the factory floor to the consumer's hands. Each stakeholder connects their MetaMask wallet, performs their role, and every action is permanently recorded on-chain.

PHASE 1
🏭 MANUFACTURER — Register Identity & Mint Batch
  1. 01Connect MetaMask wallet → Navigate to Identity Portal
  2. 02Submit KYC: Company name, role (Manufacturer), compliance docs
  3. 03Admin auto-approves via GovernanceRegistry.sol → Identity verified on-chain
  4. 04Navigate to Mint Dashboard → Enter product details: GTIN, name, origin, quantity, weight
  5. 05Click "Anchor to Blockchain" → BatchRegistry.sol mints the batch on MST L1
  6. 06Receive unique Batch ID + auto-generated QR code for tracking
OUTCOMEBatch is now MINTED on-chain. QR code is printable and scannable.
Register Identity & Mint Batch
PHASE 2
💰 RETAILER — Fund DeFi Escrow
  1. 01Switch to Retailer wallet → Navigate to Retailer Portal
  2. 02Look up batch by ID or scan QR code → View batch summary
  3. 03Click "Fund Escrow" → Enter tMST amount → Confirm in MetaMask
  4. 04EscrowRegistry.sol locks funds in a trustless smart contract
  5. 05Funds are only releasable when delivery is confirmed — no intermediary needed
OUTCOMEPayment is locked on-chain. Neither party can tamper with it.
Fund DeFi Escrow
PHASE 3
🚚 TRANSPORTER — Log Checkpoints, Telemetry & Carbon
  1. 01Switch to Transporter wallet → Navigate to Transporter Hub
  2. 02Tab 1 — Checkpoint: Enter batch ID, location, new custodian address
  3. 03Tab 2 — Telemetry: Log IoT sensor data (temperature, humidity) → TelemetryRegistry.sol anchors hash on-chain
  4. 04Tab 3 — Carbon: Enter vehicle type, distance, weight → CarbonRegistry.sol calculates & logs ESG footprint
  5. 05Every checkpoint transitions the batch stage via StageManager embedded in BatchRegistry
  6. 06If temperature breaches threshold → 🚨 Breach alert flagged on dashboard
OUTCOMEBatch is IN_TRANSIT. Full telemetry trail is cryptographically anchored.
Log Checkpoints, Telemetry & Carbon
PHASE 4
🛃 CUSTOMS AGENT — Verify Compliance & Clear Border
  1. 01Switch to Customs wallet → Navigate to Customs Portal
  2. 02Look up batch → Review attached IPFS compliance documents
  3. 03Verify certificates, invoices, and regulatory paperwork
  4. 04Click "Advance Stage" → BatchRegistry.sol transitions batch to CUSTOMS_CLEARED
  5. 05Optionally attach additional documents via DocumentRegistry.sol
OUTCOMEBatch is CUSTOMS_CLEARED. Ready for final delivery.
Verify Compliance & Clear Border
PHASE 5
🏪 RETAILER — Confirm Delivery & Release Escrow
  1. 01Back to Retailer wallet → Look up batch
  2. 02Verify all stages are complete: Minted → In Transit → Customs Cleared
  3. 03Check IoT telemetry — no temperature breaches detected
  4. 04Click "Release Escrow" → EscrowRegistry.sol transfers locked tMST to Manufacturer
  5. 05Stage transitions to DELIVERED — all journey stages turn green
OUTCOMEManufacturer receives payment. Full supply chain journey is complete.
Confirm Delivery & Release Escrow
PHASE 6
📱 CONSUMER — Scan & Verify Provenance
  1. 01Open the Scanner page on any device — no wallet required
  2. 02Scan the product QR code with your phone camera
  3. 03Instantly see the full journey: who made it, where it traveled, was it safe?
  4. 04Verify blockchain transaction hashes directly on MST block explorer
  5. 05Trust without intermediaries — the chain doesn't lie
OUTCOME✅ Blockchain-verified product. Consumer has full provenance visibility.
Scan & Verify Provenance
8
Smart Contracts
4
Stakeholder Roles
6
User Phases
3
Data Layers
1
Blockchain
▸ SYSTEM ARCHITECTURE

TRIPLE-LAYER DATA
SEPARATION ENGINE

To ensure sub-15ms data access, prevent blockchain node failures, and protect corporate trade secrets, MST SaralChain implements a triple-layer data separation architecture. Each layer has a distinct purpose — only cryptographic hashes live on-chain, keeping transactions fast and costs minimal.

LAYER 1
⛓️
Consensus & Trust Layer
MST L1 BLOCKCHAIN
Acts as a cryptographic notary registry. Stores zero plain-text data — only sequential counters (batchId), IPFS content identifiers (CIDs), and 32-byte data integrity hashes (keccak256). PoSA consensus confirms in under 3 seconds.
Zero plain-text on-chain
keccak256 integrity hashes
<3s block finality
8 verified contracts
LAYER 2
🗄️
Relational Storage Layer
SUPABASE POSTGRESQL
Houses full relational metadata, operational logs, user roles, transit coordinates, and sensor metrics. Prisma ORM provides type-safe database access with automatic migrations and schema management.
Full relational metadata
Prisma ORM type safety
Automatic migrations
Supabase cloud-hosted
LAYER 3
⚡
Performance Cache Layer
REDIS IN-MEMORY
Caches active batch histories and timelines for ultra-fast read responses (<15ms) on the public portal. BullMQ FIFO queue prevents EVM nonce collisions when multiple IoT devices post simultaneously.
<15ms read responses
BullMQ FIFO nonce queue
Zero nonce collisions
Active batch caching
Data Flow — Client To Blockchain
🖥️
CLIENT LAYER
Next.js Portal
Mobile Scanner
IoT Sensors
→
⚙️
API GATEWAY
NestJS REST API
BullMQ Queue
Ethers.js Relayer
→
⚡
CACHE LAYER
Redis In-Memory
Sub-15ms Reads
Timeline Cache
→
🗄️
DATABASE
Supabase Postgres
Prisma ORM
Full Metadata
→
⛓️
BLOCKCHAIN
MST Layer 1
8 Smart Contracts
PoSA Consensus
▸ ZERO-TRUST SECURITY

EVERY BYTE VERIFIED
EVERY ACTOR ACCOUNTABLE

🔐
Gasless Meta-Transactions
Enterprise users never touch cryptocurrency. A NestJS backend Relayer wallet signs and pays for all blockchain transactions, abstracting away gas fees and wallet complexity entirely.
🧮
On-Chain Integrity Verification
The frontend recalculates keccak256 hashes of telemetry data and compares them to on-chain values. If any database record is tampered with, the hash mismatch triggers an instant audit alert.
🔑
Role-Based Access Control
GovernanceRegistry.sol enforces OpenZeppelin AccessControl. Only verified Manufacturers can mint, only Transporters can log telemetry, only Retailers can release escrow. The blockchain enforces the rules.
📋
Data Minimization
Zero plain-text corporate data lives on the public blockchain. Only sequential IDs, IPFS CIDs, and 32-byte keccak256 hashes are stored on-chain — protecting business confidentiality.
🔄
BullMQ Nonce Protection
When dozens of IoT devices post telemetry simultaneously, BullMQ serializes blockchain writes into a FIFO queue. Every transaction gets the correct incrementing nonce — zero collisions, zero dropped events.
📱
Consumer Verification
End consumers need no wallet, no app, no login. Scan a QR code on the product → instantly see its complete provenance journey, blockchain transaction hashes, and IoT compliance history.
▸ TECHNOLOGY STACK

BUILT ON
MST LAYER 1

A full-stack blockchain application combining Next.js frontend, NestJS backend, Supabase database, Redis queue, and 7 Solidity smart contracts into one cohesive supply chain platform.

🖥️
Frontend
Next.js 16 · React 19 · TailwindCSS v4 · RainbowKit
⚙️
Backend
NestJS · Prisma ORM · BullMQ · Redis · Supabase Postgres
📦
Smart Contracts
BatchLedger · StageManager · EscrowRegistry · IdentityRegistry · TelemetryAnchor · CarbonTracker · DocumentAnchor
⛓️
Blockchain
MST Layer 1 PoSA · Solidity ^0.8.28 · Hardhat · ethers.js v6
▸ MST BLOCKCHAIN GRANT PROGRAM

UPGRADE YOUR
SUPPLY CHAIN
TODAY

Join the MST ecosystem and deploy SaralChain for your industry — immutable, fast, and built for real utility.

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