// Request
curl https://arbitrum.blockpi.network/v1/rpc/your-rpc-key -X POST -H "Content-Type: application/json" --data '{"method":"debug_traceBlockByHash","params":["0xf521306a6364f55effe654f08a884f896e064045d28ea0bfb06a65eac47d35e0", {"tracer": "callTracer"}],"id":1,"jsonrpc":"2.0"}'
// Result
{
"jsonrpc": "2.0",
"id": 1,
"result":{as described above}
}