IMO rules now require vessels to meet carbon intensity targets, and lines must report verified fuel consumption and emissions to demonstrate compliance and trade allowances. Cerulea anchors verified per-vessel fuel and emissions data into a defensible record for regulatory reporting and carbon transactions.
Turn scattered noon reports into a verified, auditable carbon intensity record per vessel.
01.
Capture consumption at source. External Data Oracles ingest bunker and noon-report fuel data per vessel, so the emissions calculation rests on verified inputs rather than manual returns.
02.
Compute the CII directly. The contract derives carbon intensity from fuel burned and distance sailed, giving lines a live figure against their required IMO rating band.
03.
Anchor the regulatory claim. The Compliance Attestations module seals each reporting period's emissions statement, producing a defensible record for the flag state and IMO.
04.
Feed the carbon market. The Carbon Credits MRV and Registry module links verified emissions to allowance positions, so lines can trade or surrender allowances from trusted data.
05.
Warn before a downgrade. The system signals when a vessel's intensity trends toward a failing band, so operational changes happen before the annual rating is set.
06.
Withstand scrutiny. Every fuel input and calculation is anchored immutably, giving auditors and buyers a tamper-evident basis for the vessel's reported carbon intensity.
Follow a single vessel from fuel data capture through carbon intensity calculation to an attested compliance report.
12:00:05
[SYS] Initializing Fuel Consumption Manifest...
12:00:05
[CMD] ingestFuel { vessel: "MV_ALTAIR", tonnes: 38.4, leg: "SIN_ROT" }
12:00:06
[AUTH] Verifying bunker delivery note signature...
12:00:06
[OK] Fuel FUEL_LEG_2210 anchored to vessel.
Cerulea decomposes emissions compliance into modular contracts. Each layer ingests fuel, computes intensity, attests, and settles allowances without any single return being taken on trust.
Verified emissions MRV is a horizontal capability. Here is how different maritime actors put the shared record to work.
Report carbon intensity from verified fuel data and manage allowances per vessel, turning IMO compliance from a spreadsheet exercise into a defensible on-chain record.
Key Asset Types
Verify reported carbon intensity against tamper-evident fuel data, clearing compliant vessels and detecting understated emissions without trusting manual returns.
Key Asset Types
Price and settle maritime allowances against trusted MRV data, so carbon transactions rest on verified emissions rather than self-declared figures.
Key Asset Types
Whether you are bridging a fleet performance system or streaming bunker and noon reports from onboard sensors, Cerulea routes both into one verified emissions record.
For operators on legacy fleet performance systems. Existing fuel and voyage data are translated into signed on-chain consumption records through the API gateway automatically.
Fleet Performance System
Operator Voyage Databases
Cerulea API Gateway
Data Hashing & Signing
Cerulea Private Chain
Emissions MRV Ledger
For vessels streaming flow-meter and noon data. An onboard gateway signs each fuel reading from a vessel wallet and routes it directly to the ledger for MRV.
Onboard Gateway
Flow Meters & Sensors
Consortium Validators
Emissions Consensus
Cerulea Ledger
Verified Emissions Record
Building an emissions MRV platform with verified fuel ingestion, carbon intensity calculation, and allowance settlement from scratch requires specialised maritime and carbon 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 MRV integration benchmarks. Connecting each fleet performance system, building custom carbon intensity and attestation logic, and shipping an allowance settlement bridge for an average fleet takes a baseline of 9 months. Building the same architecture on Cerulea takes a baseline of 2 weeks, because Cerulea Studio visually translates your emissions and allowance rules into pre-audited WebAssembly binaries and provisions the shared MRV ledger instantly.