{
  "ok": true,
  "result": {
    "@type": "blocks.shardBlockProof",
    "from": {
      "@type": "ton.blockIdExt",
      "workchain": 123,
      "shard": "<string>",
      "seqno": 123,
      "root_hash": "<string>",
      "file_hash": "<string>"
    },
    "mc_id": {
      "@type": "ton.blockIdExt",
      "workchain": 123,
      "shard": "<string>",
      "seqno": 123,
      "root_hash": "<string>",
      "file_hash": "<string>"
    },
    "links": [
      {
        "@type": "blocks.shardBlockLink",
        "id": {
          "@type": "ton.blockIdExt",
          "workchain": 123,
          "shard": "<string>",
          "seqno": 123,
          "root_hash": "<string>",
          "file_hash": "<string>"
        },
        "proof": "<string>"
      }
    ],
    "mc_proof": [
      {
        "@type": "blocks.blockLinkBack",
        "to_key_block": true,
        "from": {
          "@type": "ton.blockIdExt",
          "workchain": 123,
          "shard": "<string>",
          "seqno": 123,
          "root_hash": "<string>",
          "file_hash": "<string>"
        },
        "to": {
          "@type": "ton.blockIdExt",
          "workchain": 123,
          "shard": "<string>",
          "seqno": 123,
          "root_hash": "<string>",
          "file_hash": "<string>"
        },
        "dest_proof": "<string>",
        "proof": "<string>",
        "state_proof": "<string>"
      }
    ]
  }
}