curl --request GET \
  --url https://api.mnemom.ai/v1/checkpoints/{checkpoint_id}/certificate

{
  "@context": "https://mnemom.ai/aip/v1",
  "type": "IntegrityCertificate",
  "version": "<string>",
  "certificate_id": "<string>",
  "issued_at": "2023-11-07T05:31:56Z",
  "subject": {
    "checkpoint_id": "<string>",
    "agent_id": "<string>",
    "session_id": "<string>",
    "card_id": "<string>"
  },
  "claims": {
    "concerns": [
      {
        "category": "<string>",
        "severity": "<string>",
        "description": "<string>"
      }
    ],
    "confidence": 123,
    "reasoning_summary": "<string>",
    "analysis_model": "<string>",
    "analysis_duration_ms": 123
  },
  "input_commitments": {
    "thinking_block_hash": "<string>",
    "card_hash": "<string>",
    "values_hash": "<string>",
    "context_hash": "<string>",
    "model_version": "<string>",
    "combined_commitment": "<string>"
  },
  "proofs": {
    "signature": {
      "algorithm": "Ed25519",
      "key_id": "<string>",
      "value": "<string>",
      "signed_payload": "<string>"
    },
    "chain": {
      "chain_hash": "<string>",
      "prev_chain_hash": "<string>",
      "position": 123
    },
    "merkle": {
      "leaf_hash": "<string>",
      "leaf_index": 123,
      "root": "<string>",
      "tree_size": 123,
      "inclusion_proof": [
        {
          "hash": "<string>"
        }
      ]
    },
    "verdict_derivation": {
      "method": "SP1-STARK",
      "image_id": "<string>",
      "receipt": "<string>",
      "journal": "<string>",
      "verified_at": "2023-11-07T05:31:56Z"
    }
  },
  "verification": {
    "keys_url": "<string>",
    "certificate_url": "<string>",
    "verify_url": "<string>"
  }
}