Compute statistics about the total number and rate of transactions in the chain.
nblocksnumberoptionalblockhashstringoptionalcurl --user myuser --data-binary '{"jsonrpc":"1.0","id":"1","method":"getchaintxstats","params":[]}' -H 'content-type:text/plain;' http://127.0.0.1:8332/{
"time": 1713571767,
"txcount": 987654321,
"txrate": 7.234
}