curl --request GET \
  --url https://xbt-mainnet.gomaestro-api.org/v0/esplora/block/{hash} \
  --header 'api-key: <api-key>'

{
  "id": "<string>",
  "height": 123,
  "version": 123,
  "timestamp": 123,
  "mediantime": 123,
  "bits": 123,
  "nonce": 123,
  "difficulty": 123,
  "merkle_root": "<string>",
  "tx_count": 123,
  "size": 123,
  "weight": 123,
  "previousblockhash": "<string>",
  "extras": {}
}