Return information about all known tips in the block tree, including the main chain and orphaned branches.
curl --user myuser --data-binary '{"jsonrpc":"1.0","id":"1","method":"getchaintips","params":[]}' -H 'content-type:text/plain;' http://127.0.0.1:8332/[
{
"height": 840000,
"hash": "00000000000000000002...",
"branchlen": 0,
"status": "active"
}
]