submitheader "hexdata"
Decode the given hexdata as a header and submit it as a candidate chain tip if valid.
Throws when the header is invalid.
Arguments:
1. hexdata (string, required) the hex-encoded block header data
Result:
null (json null) None
Examples:
> bitcoin-cli submitheader "aabbcc"
> curl --user myusername --data-binary '{"jsonrpc": "1.0", "id": "curltest", "method": "submitheader", "params": ["aabbcc"]}' -H 'content-type: text/plain;' http://127.0.0.1:8332/