curl https://mainnet.bitcoin.validationcloud.io/v1/<YOUR_API_KEY_HERE>/api/v2/block-index/785365 \
-X GET \
-H "Content-Type: application/json"curl https://testnet.bitcoin.validationcloud.io/v1/<YOUR_API_KEY_HERE>/api/v2/block-index/785365 \
-X GET \
-H "Content-Type: application/json"{
"blockHash": "00000000000000000004a49543c0b6e2043e67b513c0d9100fbdf91f662c3ad1"
}