Maritime labour conventions require valid crew certifications and rest hour compliance, yet port state inspectors often rely on paper records that are incomplete or outdated. Cerulea maintains verified seafarer certifications, contracts, and rest hour logs that inspectors can check digitally during a vessel inspection.
Turn a folder of ship-presented paper into inspector-verifiable seafarer compliance.
01.
Bind certificates to seafarers. The DID and VC Ledger anchors each certificate of competency and endorsement to the seafarer's identity, so a document cannot be forged or reused across crew.
02.
Prove convention compliance. The Compliance Attestations module records rest and work hour logs against MLC and STCW limits, so a vessel can demonstrate lawful rest patterns.
03.
Check without the ship's say-so. A port state inspector queries the verified record directly during inspection, confirming crew status independently of documents the ship chooses to present.
04.
Anchor seafarer agreements. The Civil Registry module stores each crew contract and welfare entitlement, giving inspectors and seafarers a tamper-evident reference.
05.
Keep the muster compliant. The system flags certificates and endorsements nearing expiry, so a vessel is not caught short-crewed or non-compliant at a port call.
06.
Support seafarer rights. Rest logs and contract records form an immutable welfare trail, protecting seafarers and reducing detention risk under labour conventions.
Follow a seafarer's records from certification and sign-on through rest hour logging to a port state inspection.
08:05:22
[SYS] Initializing Seafarer Credential Manifest...
08:05:22
[CMD] issueCoC { did: "DID_SEA_2210", rank: "2ND_OFFICER", expiry: "2029-01-15" }
08:05:23
[AUTH] Verifying maritime authority signature...
08:05:23
[OK] Certificate CERT_7781 anchored to seafarer.
Cerulea decomposes seafarer compliance into modular contracts. Each layer certifies, contracts, logs rest, and exposes the record to inspectors without the ship controlling the source of truth.
Verified seafarer compliance is a horizontal capability. Here is how different maritime actors put the shared record to work.
Maintain a verified muster of certifications, contracts, and rest logs, reducing detention risk at inspections and proving welfare compliance across the fleet.
Key Asset Types
Inspect crew compliance digitally against a tamper-evident record, clearing compliant vessels faster and catching genuine welfare breaches instead of paperwork gaps.
Key Asset Types
Carry portable, verifiable credentials and a protected welfare trail, so rest violations and contract disputes are settled against immutable evidence.
Key Asset Types
Whether you are bridging a crew management system or letting inspectors query records from a boarding device, Cerulea routes both into one shared seafarer record.
For managers on legacy crewing systems. Existing certification and rest records are translated into signed on-chain verifiable credentials through the API gateway automatically.
Crew Management System
Ship Manager Databases
Cerulea API Gateway
Credential Hashing & Signing
Cerulea Private Chain
Seafarer Compliance Ledger
For port state inspectors on boarding devices. A boarding app signs each inspection query from an inspector wallet and reads verified crew status directly from the ledger.
Boarding App / Wallet
Inspector Devices
Consortium Validators
Compliance Consensus
Cerulea Ledger
Shared Seafarer Record
Building a seafarer compliance platform with verifiable certifications, rest hour monitoring, and inspector-facing verification from scratch requires specialised maritime and identity engineers and long integration cycles. Calculate your exact deployment speed using Cerulea.
Traditional Deployment
Solidity Coding & Audits
~ 13 Months
Visual Compilation
WASM Logical Artifacts
~ 4 Weeks
The legacy timeline reflects maritime-compliance integration benchmarks. Connecting each crew management system, building custom certification and rest hour logic, and shipping an inspector verification interface for an average fleet takes a baseline of 8 months. Building the same architecture on Cerulea takes a baseline of 2 weeks, because Cerulea Studio visually translates your certification and rest rules into pre-audited WebAssembly binaries and provisions the shared seafarer ledger instantly.