curl --request POST \
  --url https://rpc-mainnet.solanatracker.io/ \
  --header 'Content-Type: application/json' \
  --data '{
  "jsonrpc": "2.0",
  "id": "db16f277-1a22-41ff-9f85-f37e2cd77900",
  "method": "getBlockCommitment",
  "params": [
    235157119
  ]
}'

{
  "jsonrpc": "2.0",
  "id": "<string>",
  "result": {
    "commitment": null,
    "totalStake": 384962848972206900
  }
}