Swagger API YAML

Below is a YAML of the sample Swagger API:

openapi: 3.0.0
info:
  title: OrbitPort API
  version: 0.2.0
  description: |
    Orbitport is a gateway to orbital services such as `cTRNG` (cosmic True Random Number Generator) or `spaceTEE`.
paths:
  /api/v1/services/trng:
    get:
      summary: Cosmic True Random Number Generator
      description: The cosmic True Random Number Generation (cTRNG) provides true random numbers harvested from hardware on satellites, or uses a cTRNG seed to derive random numbers.
      parameters:
        - in: query
          name: src
          schema:
            type: array
            items:
              type: string
              enum: [aptosorbital, derived]
            default: [aptosorbital, derived]
          description: |
            The gateway supports multiple sources of randomness:
            1. **aptosorbital**: Space-based randomness provided by `cEDGE` or `Crypto2` satellites.
            2. **derived**: Randomness derived from a cosmic TRNG (master seed) that is fetched continuously. The seed is used to generate more random numbers when satellites are not responsive, by using it as a seed for a BIP32 master key and deriving keys from it.
      responses:
        '200':
          description: A cTRNG response
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: string
                    description: A 32 byte chunk of random data as a hexadecimal string.
                  signature:
                    type: object
                    description: The signature provided by the satellite.
                    properties:
                      value:
                        type: string
                        description: The signature value.
                      pk:
                        type: string
                        description: The public key used for the signature.
              example:
                service: "trng"
                src: "aptosorbital"
                data: "a1b2c3d4e5f67890abcdef1234567890a1b2c3d4e5f67890abcdef1234567890"
                signature: 
                  value: "3046022100a1b2c3d4e5f67890abcdef1234567890a1b2c3d4e5f67890abcdef1234567890022100a1b2c3d4e5f67890abcdef1234567890"
                  pk: ""
        '500':
          description: Internal Server Error
          content:
            application/json:
              schema:
                type: object
                properties:
                  message:
                    type: string
                    description: Error message
              example:
                message: "Internal Server Error"