Bureau Veritas API Integration Specification — Data Exchange Protocol

Overview

This document outlines the technical specifications for the API-based data exchange between DaedArch Corporation (hereafter referred to as "DaedArch") and Bureau Veritas (hereafter referred to as "BV"). The integration is designed to facilitate the seamless transfer of environmental data, specifically for greenhouse gas (GHG) inventories and carbon projects, while ensuring that all data complies with the relevant verification standards set forth by BV.

The integration will encompass the following key functionalities:

• Submission of GHG inventory data for verification.
• Transmission of supply chain emissions data.
• Support for CORSIA verification processes within the aviation sector.
• Enablement of digital verification practices through automated data exchange.

Authentication

API Access Token

To ensure secure access to the API, DaedArch shall implement an OAuth 2.0 authentication mechanism. Each request to the API must include an access token in the HTTP Authorization header.

Token Request

To obtain an access token, DaedArch must send a POST request to the following endpoint:

` POST /oauth/token Host: api.bureauveritas.com Content-Type: application/x-www-form-urlencoded

grant_type=client_credentials&client_id={client_id}&client_secret={client_secret} `

Parameters:

• client_id: The unique identifier assigned to DaedArch by BV.
• client_secret: The secret key associated with the client ID.

Token Response

The response will contain the following fields:

`json { "access_token": "string", "token_type": "Bearer", "expires_in": 3600 } `

DaedArch shall store the access token securely and use it for subsequent API requests until it expires.

Endpoints

Base URL

All API requests shall be made to the following base URL:

` https://api.bureauveritas.com/v1/ `

Data Submission Endpoints

1. Submit GHG Inventory Data

Endpoint: /ghg/inventory

Method: POST

Request Headers:

• Authorization: Bearer {access_token}
• Content-Type: application/json

Request Body:

`json { "project_id": "string", "data": { "emission_sources": [ { "source_id": "string", "source_name": "string", "emission_value": "number", "unit": "string", "timestamp": "string (ISO 8601)" } ], "total_emissions": { "value": "number", "unit": "string" }, "reporting_period": { "start_date": "string (ISO 8601)", "end_date": "string (ISO 8601)" } } } `

Response:

`json { "status": "string", "message": "string", "verification_id": "string" } `

2. Submit Supply Chain Emissions Data

Endpoint: /supply-chain/emissions

Method: POST

Request Headers:

• Authorization: Bearer {access_token}
• Content-Type: application/json

Request Body:

`json { "project_id": "string", "supply_chain_data": [ { "supplier_id": "string", "emission_value": "number", "unit": "string", "timestamp": "string (ISO 8601)" } ], "total_supply_chain_emissions": { "value": "number", "unit": "string" }, "reporting_period": { "start_date": "string (ISO 8601)", "end_date": "string (ISO 8601)" } } `

Response:

`json { "status": "string", "message": "string", "verification_id": "string" } `

3. Submit CORSIA Verification Data

Endpoint: /corsia/verification

Method: POST

Request Headers:

• Authorization: Bearer {access_token}
• Content-Type: application/json

Request Body:

`json { "flight_id": "string", "airline_code": "string", "emission_value": "number", "unit": "string", "timestamp": "string (ISO 8601)", "reporting_period": { "start_date": "string (ISO 8601)", "end_date": "string (ISO 8601)" } } `

Response:

`json { "status": "string", "message": "string", "verification_id": "string" } `

Data Models

GHG Inventory Data Model

The GHG inventory data model shall consist of the following attributes:

• project_id: Unique identifier for the project.
• data: An object containing emission sources and total emissions.
• emission_sources: An array of emission source objects.
• source_id: Unique identifier for the emission source.
• source_name: Human-readable name of the emission source.
• emission_value: Numeric value representing the emissions.
• unit: Measurement unit (e.g., "kgCO2", "tCO2").
• timestamp: Date and time of the emission measurement in ISO 8601 format.
• total_emissions: An object summarizing total emissions.
• value: Total emissions value.
• unit: Measurement unit.
• reporting_period: An object defining the reporting period.
• start_date: Start date of the reporting period in ISO 8601 format.
• end_date: End date of the reporting period in ISO 8601 format.

Supply Chain Emissions Data Model

The supply chain emissions data model shall include:

• project_id: Unique identifier for the project.
• supply_chain_data: An array of objects, where each object represents a supplier.
• supplier_id: Unique identifier for the supplier.
• emission_value: Numeric value representing the emissions associated with the supplier.
• unit: Measurement unit.
• timestamp: Date and time in ISO 8601 format.
• total_supply_chain_emissions: An object summarizing total emissions from all suppliers.
• value: Total emissions value.
• unit: Measurement unit.
• reporting_period: An object defining the reporting period.
• start_date: Start date of the reporting period in ISO 8601 format.
• end_date: End date of the reporting period in ISO 8601 format.

CORSIA Verification Data Model

The CORSIA verification data model shall consist of:

• flight_id: Unique identifier for the flight.
• airline_code: IATA code for the airline.
• emission_value: Numeric value representing the emissions for the flight.
• unit: Measurement unit.
• timestamp: Date and time of the emission measurement in ISO 8601 format.
• reporting_period: An object defining the reporting period.
• start_date: Start date of the reporting period in ISO 8601 format.
• end_date: End date of the reporting period in ISO 8601 format.

Error Handling

DaedArch shall implement robust error handling to ensure that any issues in data submission are clearly communicated. The API shall return appropriate HTTP status codes along with a detailed error message in the response body.

Error Response Format

`json { "error": { "code": "string", "message": "string", "details": { "field": "string", "issue": "string" } } } `

Common Error Codes

• 400 Bad Request: The request was invalid or cannot be served. This may include validation errors.
• 401 Unauthorized: Authentication credentials were missing or incorrect.
• 403 Forbidden: The client does not have permission to access the requested resource.
• 404 Not Found: The requested resource could not be found.
• 500 Internal Server Error: An unexpected error occurred on the server.

Rate Limits

To ensure fair usage and system reliability, API requests shall be subject to rate limiting. The following rate limits shall apply:

• Standard Rate Limit: 100 requests per minute per client_id.
• Burst Rate Limit: 200 requests in a 10-second burst.

Rate Limit Response

When the rate limit is exceeded, the API shall return a 429 Too Many Requests status code along with the following response body:

`json { "error": { "code": "429", "message": "Rate limit exceeded. Please try again later.", "retry_after": "number (seconds)" } } `

Conformity Assessment Procedures

DaedArch shall undergo periodic audits to ensure compliance with BV's verification standards and the integrity of data exchanged through the API. The following procedures shall be implemented:

1. Data Integrity Checks: All submitted data shall be validated against predefined schemas to ensure accuracy and completeness.
2. Audit Trails: Each submission shall be logged with a unique verification ID, timestamp, and user ID to maintain a clear audit trail.
3. Periodic Reviews: BV shall conduct annual reviews of DaedArch's data submissions, focusing on compliance with GHG inventory standards and supply chain emissions verification.
4. Feedback Mechanism: A feedback loop shall be established for BV to communicate any issues or discrepancies found during audits, allowing DaedArch to rectify them promptly.

Conclusion

This API Integration Specification serves as a comprehensive guide for the technical integration between DaedArch and Bureau Veritas. Adherence to the outlined protocols, data formats, and compliance assessment procedures shall ensure a robust and reliable data exchange framework, facilitating accurate GHG inventory and emissions verification processes.

DaedArch is expected to implement the specified measures diligently and maintain ongoing communication with BV to ensure alignment with evolving verification standards and practices.