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

Vessel documents

Crew and vessel certificates shared once, checked by everyone.

Agents, terminals and yards all ask for the same certificates, and each keeps its own copy. A ledger they each run a node of records a fingerprint of every document, so anyone can tell a changed or expired copy at once. A shared portal with signed PDFs often does the job; the ledger helps when no one party should hold the record for the others.

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// what matters here

What is different in this industry.

Uploaded once

The agent or the issuing party uploads each certificate once, against the vessel or crew member.

A changed copy shows

Each document's fingerprint is on the ledger, so a PDF changed later fails the check.

When a portal is enough

If one organisation runs the register for everyone, a portal with signed PDFs is simpler and cheaper.

// 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

Shared vessel document register

Hypothetical. Not a client, not a result.

// The problem

Shipping agents, terminals and ship repair yards each ask for the same crew and vessel certificates, PDFs are passed along by email, and no one can tell whether a copy has been changed or has expired.

// What we would build

A register where the issuing party or the vessel's agent uploads each certificate once, its fingerprint recorded on a private permissioned ledger that agents, terminals and yards each run a node of, with expiry reminders and a lookup for everyone the agent grants access. A shared portal with signed PDFs often does this job; the ledger helps when several organisations rely on the same record and none wants to hold it for the others.

// What is in it

Certificates uploaded once, against the vessel or crew member
Each document fingerprinted on a private ledger with a node for each organisation
Expiry reminders to the agent and the vessel's manager
Access granted by the agent, call by call
Personal details kept off the ledger, only fingerprints on it

// Stack

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

// estimate

Build: ≈ US$111,000 to US$170,000, delivered within 23 weeksCAD 158,400 to 242,300
Hosting: ≈ US$176 a monthCAD 250 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: 2.4 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

How it is paid

Deposit 20%: CAD 31,680 to 48,460
Discovery 2.5%: CAD 3,960.00 to 6,057.50
Architecture 6.7%: CAD 10,612.80 to 16,234.10
Design approved 2.5%: CAD 3,960.00 to 6,057.50
Core features 7.5%: CAD 11,880.00 to 18,172.50
Full build 5%: CAD 7,920 to 12,115
Devnet 20.2%: CAD 31,996.80 to 48,944.60
Testing and fixes 2.5%: CAD 3,960.00 to 6,057.50
Testnet 13.4%: CAD 21,225.60 to 32,468.20
Launch 2.5%: CAD 3,960.00 to 6,057.50
Mainnet 7.2%: CAD 11,404.80 to 17,445.60
Holdback, 30 days after launch (10%): CAD 15,840 to 24,230

Start from this example

// questions

Questions we get about this.

Are crew members' personal details on the ledger?

No. Documents are kept in ordinary storage with access controls; only their fingerprints go on the ledger.

Does the register decide whether a certificate is valid?

No. It shows what was uploaded, by whom and when it expires. Validity is for the people responsible for the vessel and the port.

Is there a token on the document ledger?

No. It records fingerprints of documents only. There is no token and nothing is traded on it.

Back to the industry: Ports, shipping and marine 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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