Every barrel gets a digital identity. Every event gets a cryptographic fingerprint. Every fingerprint gets anchored to a public blockchain. Here's exactly how it works.
RFID is for you
Bulk warehouse operations. Scan hundreds of barrels in one walk-through. Fast, efficient, industrial-grade.
NFC & QR are for everyone
Investors, auditors, and buyers tap their phone on a barrel or scan the QR code. Instant access to full provenance. No app needed.
Blockchain is the proof
Every scan — RFID, NFC, or QR — creates an event that gets permanently anchored to the Polygon blockchain. Tamper-proof, publicly verifiable.
A small RFID tag is attached to each asset when it enters the system. These tags can be scanned from up to 20 metres away — no line of sight needed.
Walk through a warehouse with a handheld reader and scan hundreds of items in minutes. Each tag has a unique identifier permanently linked to that asset. Scanners store codes in memory — no internet needed in the field.
An NFC sticker is also placed on the asset. Anyone with a smartphone can tap it to instantly access that item's full digital identity.
No app required. Works with any modern iPhone or Android. The tap opens a secure read-only verification page showing the asset's complete history.
A QR code and Code128 barcode are generated for every asset, linked to the same record as the NFC tag. Scan with any phone camera or handheld scanner.
QR codes and 1D barcodes serve as backups for environments where NFC range is limited. They can be printed on labels via the Print Label button. Same data, same verification, same blockchain link. iPhone users can scan via wired USB connection in HID mode.
Whether it's an RFID bulk scan, an NFC tap, a QR code scan, or a 1D barcode scan — every interaction automatically creates a timestamped provenance event.
Events include: item received, inspected, transferred, sampled, sold, temperature logged, ownership changed. Offline scans are stored in the scanner's memory and auto-sync when connected back at the office — the system detects batch dumps and processes all codes instantly.
Each event gets a unique cryptographic fingerprint (a hash). This hash includes the previous event's hash, creating an unbreakable chain.
If anyone tries to alter a single record, every hash after it breaks. The chain is self-verifying — tamper with one event and the entire history flags it instantly.
Every 3 hours, all pending events are bundled into a Merkle tree. The root hash of that tree is written to the Polygon blockchain — one transaction, thousands of events secured.
This is cost-efficient: instead of one blockchain transaction per event (expensive), we batch them. One transaction can anchor hundreds of barrel events. The Merkle tree lets any individual event be independently verified against the root.
Every anchored batch gets a transaction hash on Polygon. Click it and you're on PolygonScan — a public blockchain explorer anyone can access.
No trust required. An investor, auditor, or buyer can independently verify that a barrel's records existed at a specific point in time and haven't been altered since.
Every NFC tag on a barrel has a matching QR code. They point to the exact same verification page, the exact same blockchain record. Both create scan events.
NFC tap and QR scan both open the same barrel verification page
Both create a "scan" event that gets anchored to blockchain
QR codes can be printed on barrel labels, warehouse signage, or certificates
Works with any smartphone camera — no NFC capability required
Batch-generate up to 100 QR codes at once for bulk barrel tagging
Hold phone near barrel tag. Instant. Works through gloves. Range: 1-5cm. Best for: investors visiting, quick verification.
Point phone camera at QR code. Range: up to 1 metre. Best for: barrel labels, printed certificates, warehouse signage, dusty environments.
Handheld or fixed reader. Range: up to 20m. 500+ tags/sec. Best for: bulk warehouse audits, stock-takes, automated tracking.
Tap their phone on a barrel's NFC tag or scan the QR code
See full provenance: fill date, age, location, ownership transfers, condition history — all blockchain-verified
Request blockchain verification report
Every event is timestamped, hashed, and linked to a Polygon transaction. Immutable audit trail with no manual records to question
Walk through rickhouse with RFID handheld
Scan 500+ barrels in one pass. Every scan logged, positions verified, misplaced barrels flagged — all feeding into the blockchain
IoT sensors monitor temperature and humidity 24/7
Condition breaches trigger alerts and are permanently recorded. Angel's share data tracked year over year with blockchain proof
Every barrel in your warehouse gets three layers of digital identity: RFID for your operations team, NFC for anyone with a phone, and QR codes as a universal backup. All three feed into the same blockchain record. One barrel, one truth, permanently verifiable.
No spreadsheets. No trust-me documents. No manual logs. Just scan and prove. Need a report? The Export Center generates inventory, valuation, scan history, stock take, RFID codes, and zone summaries — all filtered by vertical, all one click.
Why ScanToProve
Most asset tracking platforms lock you into their ecosystem. We don't.
Scan it. Prove it. On the blockchain. No app needed.