curl --request GET \
  --url https://mainnet.gomaestro-api.org/v1/blocks/{hash_or_height} \
  --header 'api-key: <api-key>'

{
  "data": {
    "hash": "bdf4630098ac6923e0ef1ca0b0d6e00dca96790a8c3dd670948fdfe1456798d2",
    "height": 7867166,
    "absolute_slot": 73867237,
    "timestamp": "2022-10-10 20:25:28",
    "epoch": 368,
    "epoch_slot": 254437,
    "block_producer": "pool103w4na57zyunn2s7r8cgrnqgsn3tskj4w69yx3alx4sezphv53t",
    "confirmations": 0,
    "tx_hashes": [
      "31a84c3c6200bec2498b18c42f882fa690cd0d32a9c84a2019eb5cc42f5971d0",
      "a90e31b3de59452659617c351e5f746b819cb8b026bf945dd41b4cc199bcc8c9",
      "dbe30d4f6f42342d7cbfa950bb330cd111bea525b17c2ca115fcec19f1f2e55c",
      "836c720301e2f463fcaf3ffa746213c03616cc003a1802ddb1243e738140b109",
      "660c2a41c5a6618db2a514fe0d84bd2570e8f2e0ed8e3ac9b810f5f8230c171d",
      "357a18477c72d771df77736f83abba44fa826a3e36bc31bb81ca4e2f06475cc6",
      "a79137811a11914fa6b5543871496e2efbbfd4fb63e3ef808fbbf4247a194f7f",
      "f89ad271629e827e6722617cce03f7c966f37b9d9143ab356600f31591b902b0",
      "ae2cc8e8bf536899acb036c7c560c5658abfdffb84a35f18e9a8cf72fb160e35",
      "b84082a6c4fd731f2a4263d5e99f205798d4356ee5386633ef47727ba2a345fd",
      "6dc497eb7acf460a491cff25ca22dcdad1fa42bb133262afc20c828d7003b439",
      "ba7464e4d1c8610e3bef857ddaf7e52083291b5e30750e6bce7ebfeef07f4790",
      "0344e44a44c644f782088ca7e1143304b20f5cd3e5a4c77748bf4efe5aea06f8",
      "1eec3e58f7001c5b875456232e79cbfdb64e2be0e2b32c06f5c07cab38069634"
    ],
    "total_fees": 4195080,
    "total_ex_units": {
      "mem": 7191340,
      "steps": 2947856708
    },
    "script_invocations": 3,
    "size": 27430,
    "previous_block": "3c1778df54aedc9e6226d31cc316a8b5b7912800f909b62f77a46ad61fa10a0c",
    "total_output_lovelace": "102300616446",
    "era": "vasil",
    "protocol_version": [
      7,
      0
    ],
    "vrf_key": "f913889ad4f696f436dfa19803ebee2219cee59daba879ab9591c75fc8ee33e4",
    "operational_certificate": {
      "hot_vkey": "278c4f65bdca2498882a47eb876f023a86bc75b9307bd80ac361587f1c0fc1f1",
      "sequence_number": 4,
      "kes_period": 527,
      "kes_signature": "39a017fbd95a909a3bcca2f368fcc26e7fab64fb09dc48c7d4a99db5bd68b6280a61fe66da3f048b237754d48cfa1c3f954895f4fe41cb71c296997b53dd6501"
    }
  },
  "last_updated": {
    "timestamp": "2022-10-10 20:25:28",
    "block_hash": "bdf4630098ac6923e0ef1ca0b0d6e00dca96790a8c3dd670948fdfe1456798d2",
    "block_slot": 73867237
  }
}