Shared vehicle history ledger
Hypothetical. Not a client, not a result.
// The problem
A network of dealers, independent shops and an auto auction each hold part of a vehicle's history, and disputes over odometer readings and undisclosed repairs end up on someone's desk.
// What we would build
A private permissioned ledger where dealers, shops and the auction record odometer readings, services and repairs against the VIN as they happen, so a vehicle's history is one record no member can quietly change. A commercial history report may already cover your need, and a shared database works if one member is trusted by all; we will say which applies.
// What is in it
- Odometer readings and services recorded against the VIN at each visit
- Repairs recorded with the shop, date and parts, never the owner's personal data
- Readings that go backwards flagged at once
- History view for members, with a shareable report for buyers
- A node per member, or a hosted node for small shops
// Stack
- Hyperledger Fabric (private, permissioned)
- Node.js
- Next.js
- PostgreSQL
- AWS
// estimate
- Build
- ≈ US$113,000 to US$173,000, delivered within 23 weeksCAD 160,800 to 246,000
- Hosting
- ≈ US$492 a monthCAD 700 a month
- Support
- ≈ US$2,500 a monthCAD 3,565 a month
Prices in your currency are estimates from today's Bank of Canada rate. All invoicing is in CAD or USD.
Timeline by milestone
- Discovery
- 2.9 to 3.4 weeks
- Architecture
- 0.4 weeks
- Design approved
- 2.9 to 4.9 weeks
- Core features
- 1.4 to 2.4 weeks
- Full build
- 0.9 to 1.4 weeks
- Devnet
- 2.9 to 4.4 weeks
- Testing and fixes
- 0.4 weeks
- Testnet
- 2.9 to 3.4 weeks
- Launch
- 0.9 to 1.4 weeks
- Mainnet
- 0.9 to 1.4 weeks
Outside our hands, and added to the calendar
- API access approved by your DMS vendor
- 1 to 4 weeks
How it is paid
- Deposit 20%
- CAD 32,160 to 49,200
- Discovery 2.5%
- CAD 4,020 to 6,150
- Architecture 6.7%
- CAD 10,773.60 to 16,482.00
- Design approved 2.5%
- CAD 4,020 to 6,150
- Core features 7.5%
- CAD 12,060 to 18,450
- Full build 5%
- CAD 8,040 to 12,300
- Devnet 20.2%
- CAD 32,481.60 to 49,692.00
- Testing and fixes 2.5%
- CAD 4,020 to 6,150
- Testnet 13.4%
- CAD 21,547.20 to 32,964.00
- Launch 2.5%
- CAD 4,020 to 6,150
- Mainnet 7.2%
- CAD 11,577.60 to 17,712.00
- Holdback, 30 days after launch (10%)
- CAD 16,080 to 24,600