labs@atheron:~/industries/manufacturing/blockchains$ launch chain --validators

Plant lot traceability

A private blockchain from supplier certificate to batch.

Traceability is a record several companies write to and none of them should be able to rewrite. That is the narrow case where a private, permissioned ledger beats a shared database, and we build it with the supplier portal that feeds it.

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// what matters here

What is different in this industry.

A node for each party

The plant and its main suppliers each run a node, so no single company holds the only copy of the record, and an edit after the fact shows.

Private, not public

Lot data and certificates are commercial. A permissioned chain keeps them among the parties, with no tokens and no public fees.

The portal is the product

Suppliers will not use a chain; they will use a form. The portal is where certificates are uploaded, and the ledger records what was uploaded and when.

Trace in both directions

From a finished batch back to every supplier lot, and from a suspect lot forward to every customer shipment.

// example projects

Priced examples for this service.

Each one is hypothetical, labelled as such, and priced live from our rate card. Open any of them in the estimator and make it yours.

Example projectWeb appBlockchain

Supplier portal, provenance ledger

Hypothetical. Not a client, not a result.

// The problem

Certificates of conformance and lot numbers arrive by email, and tracing which supplier lot went into which finished batch takes days.

// What we would build

A supplier portal where certificates and lot data are uploaded against purchase orders, recorded on a private permissioned ledger the plant and its key suppliers each run a node of, so the trace is minutes and nobody can quietly edit it later.

// What is in it

Supplier sign-in, purchase orders and certificate upload in English and French
Each lot and certificate recorded on a private chain with a node per party
Trace from a finished batch back to every supplier lot, and forward to every customer
Alerts when a certificate is missing or expires
Export for auditors and customers

// Stack

Next.js
PostgreSQL
Hyperledger Besu (private, permissioned)
S3-compatible storage
AWS

// estimate

Build: ≈ US$140,000 to US$213,000, delivered within 31 weeksCAD 198,700 to 303,900
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: 4.4 to 7.9 weeks
Core features: 1.9 to 2.9 weeks
Full build: 0.9 to 1.9 weeks
Devnet: 3.4 to 5.9 weeks
Testing and fixes: 0.4 weeks
Testnet: 2.9 to 3.4 weeks
Traceability check passed: 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

ERP test access from your IT team: 1 to 4 weeks

How it is paid

Deposit 20%: CAD 39,740 to 60,780
Discovery 2.2%: CAD 4,371.40 to 6,685.80
Architecture 5.9%: CAD 11,723.30 to 17,930.10
Design approved 2.2%: CAD 4,371.40 to 6,685.80
Core features 6.6%: CAD 13,114.20 to 20,057.40
Full build 4.4%: CAD 8,742.80 to 13,371.60
Devnet 17.7%: CAD 35,169.90 to 53,790.30
Testing and fixes 2.2%: CAD 4,371.40 to 6,685.80
Testnet 11.8%: CAD 23,446.60 to 35,860.20
Traceability check passed 8.7%: CAD 17,286.90 to 26,439.30
Launch 2.2%: CAD 4,371.40 to 6,685.80
Mainnet 6.1%: CAD 12,120.70 to 18,537.90
Holdback, 30 days after launch (10%): CAD 19,870 to 30,390

Start from this example

// questions

Questions we get about this.

Why not just a shared database?

If one company runs it and everyone trusts that company, a database is cheaper and we will say so. A ledger earns its cost when several companies write to the record and each needs proof the others cannot change it.

Do suppliers need to understand blockchain?

No. They sign in to a portal and upload documents. The ledger is behind it.

Which chain do you use?

Usually Hyperledger Besu in a private, permissioned network, because it is open source and widely supported. We choose per project.

Back to the industry: Manufacturing About the service: Private and public blockchains

// next

Not quite your project?

Tell us what you have in mind. We will come back to you with a range and the questions that would narrow it. Or book a call and talk it through.

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