The block's height.
Copy curl --location --request POST 'https://xmr.getblock.io/mainnet/json_rpc' \
--header 'x-api-key: YOUR-API-KEY' \
--header 'Content-Type: application/json' \
--data-raw '{"jsonrpc": "2.0",
"method": "get_block_header_by_height",
"params": {"height": 912345},
"id": "getblock.io"}'
Copy {
"id": "getblock.io",
"jsonrpc": "2.0",
"result": {
"block_header": {
"block_size": 210,
"block_weight": 210,
"cumulative_difficulty": 754734824984346,
"cumulative_difficulty_top64": 0,
"depth": 1482236,
"difficulty": 815625611,
"difficulty_top64": 0,
"hash": "e22cf75f39ae720e8b71b3d120a5ac03f0db50bba6379e2850975b4859190bc6",
"height": 912345,
"long_term_weight": 210,
"major_version": 1,
"miner_tx_hash": "c7da3965f25c19b8eb7dd8db48dcd4e7c885e2491db77e289f0609bf8e08ec30",
"minor_version": 2,
"nonce": 1646,
"num_txes": 0,
"orphan_status": false,
"pow_hash": "",
"prev_hash": "b61c58b2e0be53fad5ef9d9731a55e8a81d972b8d90ed07c04fd37ca6403ff78",
"reward": 7388968946286,
"timestamp": 1452793716,
"wide_cumulative_difficulty": "0x2ae6d65248f1a",
"wide_difficulty": "0x309d758b"
},
"credits": 0,
"status": "OK",
"top_hash": "",
"untrusted": false
}
}