Sustainability Credential Engine

Verify the blue label.
Expose the forgery.

Publish every Marine Stewardship Council certificate as a verifiable credential on a public registry. The DID and VC Ledger and Provenance Notary bind each certificate to its holder and catch, and a public API answers any verification request in real time.

The Foundation

The Execution Mechanics

Turn a certificate that takes weeks to confirm into a credential a retailer verifies in one query.

01.

Public Credential Registry

Publish certificates openly. Every Marine Stewardship Council certificate is issued as a verifiable credential to a public registry, so anyone can confirm it without contacting the council.

02.

Holder & Catch Binding

Tie the label to real product. Provenance Notary binds each certificate to its holder and the specific catch, so the blue label cannot be lifted onto a non-certified product.

03.

Real-Time Verification API

Answer verification at scale. A public API resolves any certificate instantly, letting a retailer verify hundreds of supplier certificates in an afternoon instead of weeks of email.

04.

Forgery Rejection

Make copies fail. A forged or copied certificate carries no matching on-chain record, so verification returns nothing rather than passing a convincing-looking document.

05.

Issuer Accreditation

Anchor the council's authority. The DID and VC Ledger records the certifying body's identity, so every credential resolves to a recognised issuer and not an impostor.

06.

Chain-of-Custody Link

Connect certificate to supply chain. Each credential links to the catch and custody record, so verification confirms not just the paper but the product behind it.

The Certificate Lifecycle

Follow a sustainability certificate from council issuance to a retailer verifying hundreds in a single session.

Operational log system
cerulea_msc.log

07:30:22

[SYS] Issuing sustainability credential...

07:30:22

[CMD] issueVC { holder: "FISHERY_204", catch: "COD_NE_88" }

07:30:23

[AUTH] Anchoring issuer DID and binding to catch...

07:30:23

[OK] Credential CERT_9021 published at block 12220611.

Smart Contract Anatomy

Cerulea decomposes certificate verification into modular contracts for issuer identity, credential binding, public resolution, and forgery rejection, so the blue label stays trustworthy.

Applicability Across the Spectrum

Sustainability certificate verification is a horizontal capability. Here is how councils, retailers, and consumers put one registry to work.

Certifying Councils

Issue certificates that anyone can verify instantly and expose copies automatically, protecting the integrity of the blue label without staffing verification calls.

Key Asset Types

  1. 1Verifiable Credentials
  2. 2Issuer DIDs
  3. 3Status Records

Retailers & Brands

Verify hundreds of supplier certificates in an afternoon through the API, turning a weeks-long email process into a single defensible check.

Key Asset Types

  1. 1Supplier Certificates
  2. 2Verification Logs
  3. 3Sourcing Proofs

Consumers & Auditors

Confirm a product's sustainability claim directly against the registry, trusting cryptographic proof rather than an unverifiable printed label.

Key Asset Types

  1. 1Product Claims
  2. 2Public Lookups
  3. 3Audit Snapshots

Network & Execution Architecture

Whether a council is bridging its certificate database or a retailer is querying the public API, Cerulea routes both into one verifiable registry.

Track A: Council System Bridging

For certifying bodies with legacy certificate databases. Existing issuance records are translated into verifiable credentials through the API gateway automatically.

Certificate Database

Council Systems

HTTPS / REST

Cerulea API Gateway

Credential Signing

WASM COMPILATION

Cerulea Registry

Public Credential Ledger

Track B: Retailer API Verification

For retailers verifying at scale. A public API resolves each supplier certificate against the registry with no account and no council contact.

Retailer Verifier

Sourcing Systems

PUBLIC API

Registry Validators

Credential Consensus

STATE EXECUTION

Cerulea Ledger

Public Verification Layer

Accelerated Time-to-Market Simulator

Building a public credential registry with issuer accreditation, catch binding, a verification API, and forgery rejection from scratch requires identity engineers and long council onboarding. Calculate your exact deployment speed using Cerulea.

Required Credential & Verification Rules

36Rules
Simple (10)Enterprise (200)

Traditional Deployment

Solidity Coding & Audits

~ 11 Months

Cerulea Edge

Visual Compilation

WASM Logical Artifacts

~ 4 Weeks

>_

Technical Methodology

The legacy timeline reflects decentralised identity integration benchmarks. Standing up a DID method, credential issuance, a public verification API, and forgery rejection for an average program takes a baseline of 7 months. Building the same architecture on Cerulea takes a baseline of 2 weeks, because Cerulea Studio visually translates your credential and verification rules into pre-audited WebAssembly binaries and provisions the public registry and API layer instantly.