curl --request GET \
  --url https://arch-testnet.gomaestro-api.org/v0/rpc/block/range/{start_height}/{end_height} \
  --header 'api-key: <api-key>'

{
  "data": [
    {
      "bitcoin_block_height": 123,
      "hash": "<string>",
      "height": 123,
      "merkle_root": "<string>",
      "previous_block_hash": "<string>",
      "timestamp": 123,
      "transaction_count": 123,
      "transactions": [
        "<string>"
      ]
    }
  ],
  "last_updated": {
    "block_hash": "<string>",
    "block_height": 123
  }
}