curl --request POST \
  --url https://api.kas.fyi/v1/rpc/getBlocks \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '{
  "lowHash": "fc4c90a646687ba6f862e6089285dd7a610ef4d7f7614d25295f65aceb02bc41",
  "includeBlocks": true,
  "includeTransactions": true
}'

{
  "blockHashes": [
    "fc4c90a646687ba6f862e6089285dd7a610ef4d7f7614d25295f65aceb02bc41",
    "21e4944392af43783de33dd076c65dd3f5fd57ddaf6fd9f68674d33b54f1b575"
  ],
  "blocks": [
    {
      "header": {
        "hash": "34e9538fd3225652553930657c3d767d5ccab0fcd545038a69c202e45929dcd6",
        "version": 1,
        "parentsByLevel": [
          [
            "0x1234567890abcdef..."
          ],
          [
            "0x9876543210fedcba..."
          ]
        ],
        "hashMerkleRoot": "34e9538fd3225652553930657c3d767d5ccab0fcd545038a69c202e45929dcd6",
        "acceptedIdMerkleRoot": "34e9538fd3225652553930657c3d767d5ccab0fcd545038a69c202e45929dcd6",
        "utxoCommitment": "34e9538fd3225652553930657c3d767d5ccab0fcd545038a69c202e45929dcd6",
        "timestamp": "1638360000000",
        "bits": 393216,
        "nonce": "12345678901234567890",
        "daaScore": "1234567",
        "blueWork": "123456789012345",
        "blueScore": "1234567",
        "pruningPoint": "34e9538fd3225652553930657c3d767d5ccab0fcd545038a69c202e45929dcd6"
      },
      "transactions": [
        {
          "version": 1,
          "inputs": [
            {
              "previousOutpoint": {
                "transactionId": "34e9538fd3225652553930657c3d767d5ccab0fcd545038a69c202e45929dcd6",
                "index": 0
              },
              "signatureScript": "0x473044...",
              "sequence": "4294967295",
              "sigOpCount": 1
            }
          ],
          "outputs": [
            {
              "value": "1000000000",
              "scriptPublicKey": "<string>",
              "verboseData": {
                "scriptPublicKeyType": "pubkeyhash",
                "scriptPublicKeyAddress": "kaspa:qpzpfwcsqsxhxwup26r55fd0ghqlhyugz8cp6y3wxuddc02vcxtjg75pspnwz"
              }
            }
          ],
          "lockTime": "0",
          "subnetworkId": "0100000000000000000000000000000000000000",
          "gas": "0",
          "payload": "0x",
          "mass": "1000",
          "verboseData": {
            "transactionId": "34e9538fd3225652553930657c3d767d5ccab0fcd545038a69c202e45929dcd6",
            "hash": "34e9538fd3225652553930657c3d767d5ccab0fcd545038a69c202e45929dcd6",
            "computeMass": "1000",
            "blockHash": "34e9538fd3225652553930657c3d767d5ccab0fcd545038a69c202e45929dcd6",
            "blockTime": "1638360000000"
          }
        }
      ],
      "verboseData": {
        "hash": "34e9538fd3225652553930657c3d767d5ccab0fcd545038a69c202e45929dcd6",
        "difficulty": 1.5,
        "selectedParentHash": "34e9538fd3225652553930657c3d767d5ccab0fcd545038a69c202e45929dcd6",
        "transactionIds": [
          "34e9538fd3225652553930657c3d767d5ccab0fcd545038a69c202e45929dcd6",
          "0x9876543210fedcba9876543210fedcba9876543210fedcba9876543210fedcba"
        ],
        "isHeaderOnly": false,
        "blueScore": 1234567,
        "childrenHashes": [
          "34e9538fd3225652553930657c3d767d5ccab0fcd545038a69c202e45929dcd6"
        ],
        "mergeSetBluesHashes": [
          "34e9538fd3225652553930657c3d767d5ccab0fcd545038a69c202e45929dcd6"
        ],
        "mergeSetRedsHashes": [
          "0x9876543210fedcba9876543210fedcba9876543210fedcba9876543210fedcba"
        ],
        "isChainBlock": true
      }
    }
  ]
}